Pullet carpet shell (Venerupis corrugata)
Distribution data supplied by the Ocean Biodiversity Information System (OBIS). To interrogate UK data visit the NBN Atlas.Map Help
Researched by | Will Rayment | Refereed by | This information is not refereed |
Authority | (Gmelin, 1791) | ||
Other common names | - | Synonyms | Venerupis corrugata (Gmelin, 1791), Venerupis pullastra (Gmelin, 1791), Venerupis saxatilis (Gmelin, 1791), Venerupis senegalensis |
Summary
Description
An oval, bivalve shell that reaches 5 cm in length. The exterior is sculptured with concentric ridges and faint radiating lines. White, cream or grey in colour, sometimes with purple or brown markings.
Recorded distribution in Britain and Ireland
Recorded from all around the coast of Britain and Ireland where suitable habitat occurs
Global distribution
Recorded in Europe from northern Norway to the Mediterranean and in north west Africa
Habitat
Venerupis corrugata occurs in wave protected areas such as sheltered inlets and sea lochs. It burrows to a depth of 5 cm in mixed sandy substrata, often attached to small stones or shells by byssal threads. It occasionally inhabits rock crevices. It occurs from the lower shore to the lower circalittoral but is most abundant in the shallow subtidal.
Depth range
lower shore to 35 mIdentifying features
- Elongate, oval shell; anterior end rounded, posterior almost straight.
- Umbones distinctly anterior.
- Sculptured exterior with growth stages clear.
- Each valve with 3 cardinal teeth.
- Adductor scars and pallial line distinct; pallial sinus deep, U-shaped and extending beyond mid-line of shell.
- Inner surface shiny white, occasionally with purple tinges.
- Distinguished from Tapes rhomboides (banded carpet shell) by external sculpturing and more angular appearance of posterior part of shell.
Additional information
Venerupis saxatilis has a more sculptured shell than Venerupis corrugata and is typically found attached to firm substrata in rocky crevices. It is unclear whether Venerupis saxatilis is a separate species or an ecophenotype of Venerupis corrugata (Hayward et al., 1996).
Listed by
- none -
Biology review
Taxonomy
Level | Scientific name | Common name |
---|---|---|
Phylum | Mollusca | Snails, slugs, mussels, cockles, clams & squid |
Class | Bivalvia | Clams, cockles, mussels, oysters, and scallops |
Order | Venerida | Cockles, hatchet shells, coin shells, venus shells, otter shells, wedge shells, razor shells and tellins |
Family | Veneridae | |
Genus | Venerupis | |
Authority | (Gmelin, 1791) | |
Recent Synonyms | Venerupis corrugata (Gmelin, 1791)Venerupis pullastra (Gmelin, 1791)Venerupis saxatilis (Gmelin, 1791)Venerupis senegalensis |
Biology
Parameter | Data | ||
---|---|---|---|
Typical abundance | High density | ||
Male size range | up to 50mm | ||
Male size at maturity | 10-20mm | ||
Female size range | 10-20mm | ||
Female size at maturity | |||
Growth form | Bivalved | ||
Growth rate | 1.3mm/month | ||
Body flexibility | None (less than 10 degrees) | ||
Mobility | Burrower | ||
Characteristic feeding method | Active suspension feeder | ||
Diet/food source | |||
Typically feeds on | Suspended organic matter, particularly unicellular algae | ||
Sociability | |||
Environmental position | Infaunal | ||
Dependency | Independent. | ||
Supports | None | ||
Is the species harmful? | No Edible |
Biology information
Abundance. Johanessen (1973a) recorded Venerupis corrugata (studied as Venerupis pullastra) from a sheltered beach in Norway at a mean density of 31 individuals per 0.25 m². Potential production was calculated to be 20 g ash free dry weight per m²/year, including a loss of 9 g due to mortality.
Growth rate. Growth rate of Venerupis corrugata varies according to environmental conditions. Quayle (1952) investigated the growth rates of Venerupis corrugata (studied as Venerupis pullastra) from Millport, Scotland. In the first year following settlement, the mean monthly growth rate was 1.3 mm per month over the growing period of 6 months. The growth rate was found to increase for the first four years of life (maximum growth rate was ca 9 mm per season) after which it began to decrease. Within each growing season, the growth rate was found to increase up to the point of spawning, after which it levelled off and then decreased. Johannessen (1973b) investigated growth of Venerupis corrugata (studied as Venerupis pullastra) from a sheltered beach in western Norway. The spherical shell of the free-swimming larvae developed into an oblong shape after settlement, presumably to aid burrowing. At a shell length greater than 40 mm, the shell shape tended towards a flattened circular form, the biological significance of which is unclear. The shell growth rate was found to be approximately constant (ca 15 mm per season) up to a shell length of 4 cm, after which it decreased. Short and/or young individuals were found to grow faster than long and/or old ones.
Diet. Beiras et al. (1993) investigated the effect of increasing food rations on Venerupis corrugata (studied as Venerupis pullastra). Increased rations of algal food were found to increase ingestion rate and growth. This relationship was found to hold true up to the maximum ration of 300 algal cells/µl. However, at high food concentrations, the returns diminished due to decreased absorption efficiency. The optimum food concentration for growth (i.e. maximum increase in biomass per unit weight of food) was 100 cells/µl.
Habitat preferences
Parameter | Data |
---|---|
Physiographic preferences | Strait or Sound, Sea loch or Sea lough, Estuary, Enclosed coast or Embayment, Enclosed coast or Embayment, Estuary, Sea loch or Sea lough, Strait or Sound |
Biological zone preferences | Lower circalittoral, Lower eulittoral, Lower infralittoral, Sublittoral fringe, Upper circalittoral, Upper infralittoral, Lower circalittoral, Lower eulittoral, Lower infralittoral, Sublittoral fringe, Upper circalittoral, Upper infralittoral |
Substratum / habitat preferences | Coarse clean sand, Fine clean sand, Gravel / shingle, Mixed, Muddy gravel, Muddy sand, Coarse clean sand, Fine clean sand, Gravel / shingle, Mixed, Muddy gravel, Muddy sand |
Tidal strength preferences | Moderately strong 1 to 3 knots (0.5-1.5 m/sec.), Weak < 1 knot (<0.5 m/sec.), Moderately strong 1 to 3 knots (0.5-1.5 m/sec.), Weak < 1 knot (<0.5 m/sec.) |
Wave exposure preferences | Extremely sheltered, Sheltered, Very sheltered, Extremely sheltered, Sheltered, Very sheltered |
Salinity preferences | Full (30-40 psu), Variable (18-40 psu), Full (30-40 psu), Variable (18-40 psu) |
Depth range | lower shore to 35 m |
Other preferences | No text entered |
Migration Pattern | Non-migratory or resident |
Habitat Information
-
Life history
Adult characteristics
Parameter | Data |
---|---|
Reproductive type | Gonochoristic (dioecious) |
Reproductive frequency | Annual episodic |
Fecundity (number of eggs) | No information |
Generation time | 1 year |
Age at maturity | 1 year |
Season | See additional information |
Life span | 5-10 years |
Larval characteristics
Parameter | Data |
---|---|
Larval/propagule type | - |
Larval/juvenile development | Planktotrophic |
Duration of larval stage | 11-30 days |
Larval dispersal potential | Greater than 10 km |
Larval settlement period | Insufficient information |
Life history information
The reproductive characteristics of Venerupis corrugata vary according to the environment. In Scotland, Quayle (1952) recorded breeding between May and September. However, in northern Spain, spawning occurred in March, April and May (Perez Camacho, 1980). Spawning occurred 2 or more times in a season in a population in western Norway (Johannessen, 1973b) and it has been recorded that spawning can occur up to four times per season in Venerupis corrugata (studied as Venerupis pullastra) raised in a microsystem (Jara-Jara et al., 2000). The Spanish population of Venerupis corrugata (studied as Venerupis pullastra) experienced constant mortality of 17.7% per annum between shell lengths of 11 and 50 mm (Perez Camacho, 1980) whereas the Norwegian population exhibited low mortality up to year 8 followed by mass mortality attributed to senility (Johannessen, 1973b).
Sensitivity review
The MarLIN sensitivity assessment approach used below has been superseded by the MarESA (Marine Evidence-based Sensitivity Assessment) approach (see menu). The MarLIN approach was used for assessments from 1999-2010. The MarESA approach reflects the recent conservation imperatives and terminology and is used for sensitivity assessments from 2014 onwards.
Physical pressures
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Intolerance | Recoverability | Sensitivity | Evidence / Confidence | |
Substratum loss [Show more]Substratum lossBenchmark. All of the substratum occupied by the species or biotope under consideration is removed. A single event is assumed for sensitivity assessment. Once the activity or event has stopped (or between regular events) suitable substratum remains or is deposited. Species or community recovery assumes that the substratum within the habitat preferences of the original species or community is present. Further details EvidenceVenerupis corrugata lives infaunally in mixed sandy sediments, often attached to small stones or shell fragments. Removal of the substratum would remove the entire population of the species and therefore intolerance is recorded as high. Recoverability is recorded as high (see additional information below). | High | High | Moderate | High |
Smothering [Show more]SmotheringBenchmark. All of the population of a species or an area of a biotope is smothered by sediment to a depth of 5 cm above the substratum for one month. Impermeable materials, such as concrete, oil, or tar, are likely to have a greater effect. Further details. EvidenceVenerupis corrugata typically burrows to a depth of 3-5 cm and is often attached to small stones or shell fragments by byssal threads. It is an active suspension feeder and therefore requires its siphons to be above the sediment surface in order to maintain a feeding and respiration current. Kranz (1972) (cited in Maurer et al., 1986) reported that shallow burying siphonate suspension feeders are typically able to escape smothering with 10-50 cm of their native sediment and relocate to their preferred depth by burrowing. This is likely to apply to the proportion of the Venerupis corrugata population which is not firmly attached by byssal threads. However, those individuals that are attached may be inhibited from relocating rapidly following smothering with 5 cm of sediment and some mortality is expected to occur. Intolerance is therefore recorded as intermediate. Recoverability is recorded as high (see additional information below). | Intermediate | High | Low | Low |
Increase in suspended sediment [Show more]Increase in suspended sedimentBenchmark. An arbitrary short-term, acute change in background suspended sediment concentration e.g., a change of 100 mg/l for one month. The resultant light attenuation effects are addressed under turbidity, and the effects of rapid settling out of suspended sediment are addressed under smothering. Further details EvidenceVenerupis corrugata is an active suspension feeder, trapping food particles on the gill filaments (ctenidia). An increase in suspended sediment is therefore likely to affect both feeding and respiration by potentially clogging the ctenidia. In Venerupis corrugatus, increased particle concentrations between low and high tide resulted in increased clearance rates and pseudofaeces production with no significant increase in respiration rate (Stenton-Dozey & Brown, 1994). It seems likely therefore that Venerupis corrugata would also be able to clear its feeding and respiration structures, although at high particle concentrations, there may be some energetic cost. Over one month, there is not likely to be any mortality. Intolerance is therefore recorded as low. When the suspended sediment falls to typical levels, feeding and respiration would be expected to quickly return to normal so recoverability is recorded as very high. | Low | Very high | Very Low | Low |
Decrease in suspended sediment [Show more]Decrease in suspended sedimentBenchmark. An arbitrary short-term, acute change in background suspended sediment concentration e.g., a change of 100 mg/l for one month. The resultant light attenuation effects are addressed under turbidity, and the effects of rapid settling out of suspended sediment are addressed under smothering. Further details EvidenceVenerupis corrugata is an active suspension feeder, feeding on phytoplankton and particulate organic food. A decrease in suspended sediment would decrease food availability and therefore may impair growth rates. However, over a one-month period (the benchmark) it is unlikely that survival would be affected. Hence, intolerance is recorded as low. When turbidity returns to normal levels, the growth rate should soon return to normal and hence recoverability is recorded as very high. | Low | Very high | Very Low | Low |
Desiccation [Show more]Desiccation
EvidenceThe majority of the population of Venerupis senegalensis live infaunally in muddy sand, a substratum with a high water content, and is therefore protected from desiccation stress. Additionally, bivalves are able to respond to desiccation stress by valve adduction during periods of emersion. It is likely that the species would be able to retain enough water in the shell to prevent mortality during the benchmark exposure period of one hour. However, during the period of emersion, the species would not be able to feed and respiration would be compromised, so there is likely to be some energetic cost. Intolerance is therefore recorded as low. On immersion, metabolic activity should quickly return to normal and recoverability is therefore recorded as very high. | Low | Very high | Very Low | Low |
Increase in emergence regime [Show more]Increase in emergence regimeBenchmark. A one hour change in the time covered or not covered by the sea for a period of one year. Further details EvidenceVenerupis corrugata occurs on the lower shore and so is vulnerable to an increase in emergence. The species does not colonize further up the shore and therefore must be limited by one or more factors including desiccation, temperature and wave exposure. The benchmark for emergence is an increase in exposure for one hour every tidal cycle for a year. During this time, exposed individuals will not be able to feed and respiration will be compromised. Over the course of a year, it is expected that the resultant energetic cost to the individuals highest up the shore will lead to some mortality and therefore intolerance is recorded as intermediate. Recoverability is recorded as high (see additional information below). | Intermediate | High | Low | Low |
Decrease in emergence regime [Show more]Decrease in emergence regimeBenchmark. A one hour change in the time covered or not covered by the sea for a period of one year. Further details EvidenceVenerupis corrugata thrives in the subtidal zone and would therefore be tolerant of a decrease in emergence. It is possible that a decreased emergence regime would allow the species to colonize further up the shore. | Tolerant | Not relevant | Not sensitive | High |
Increase in water flow rate [Show more]Increase in water flow rateA change of two categories in water flow rate (view glossary) for 1 year, for example, from moderately strong (1-3 knots) to very weak (negligible). Further details EvidenceVenerupis corrugata thrives in low-energy environments such as sheltered beaches where the tidal flow is weak (Connor et al., 1997a). The benchmark for an increase in water flow would be a change to strong flow for one year (see glossary). This would place the species outside its habitat preferences and some mortality would be likely to occur, probably due to interference with respiration and feeding, although this is poorly understood. In addition, the increased water flow rate will change the sediment characteristics in which the species lives, primarily by re-suspending and preventing the deposition of finer particles (Hiscock, 1983). This may result in erosion of the preferred habitat, which would contribute further to mortality. Intolerance is therefore recorded as intermediate. Recoverability is recorded as high (see additional information below). | Intermediate | High | Low | Low |
Decrease in water flow rate [Show more]Decrease in water flow rateA change of two categories in water flow rate (view glossary) for 1 year, for example, from moderately strong (1-3 knots) to very weak (negligible). Further details EvidenceVenerupis corrugata thrives in low-energy environments such as sheltered beaches where the tidal flow is weak (Connor et al., 1997a). It is an active suspension feeder capable of generating its own feeding and respiration current by ciliary action. The species is therefore likely to tolerate a decrease in water flow rate. However, it should be noted that decreases in water flow will also result in an increased risk of smothering and changes in oxygenation. These factors are discussed in their relevant sections. | Tolerant | Not relevant | Not sensitive | Low |
Increase in temperature [Show more]Increase in temperature
For intertidal species or communities, the range of temperatures includes the air temperature regime for that species or community. Further details EvidenceThe geographic range of Venerupis corrugata extends to northern Africa. Therefore, the species must be capable of surviving in higher temperatures than it experiences in Britain and Ireland and thus would be expected to tolerate temperature change over an extended period. A population of Venerupis corrugata endured a temperature rise from 13 to 18°C over 5 hours in a rockpool and then a drop to 14°C following inundation by the tide, with no obvious ill effects (Stenton-Dozey & Brown, 1994). Albentosa et al. (1994) investigated the scope for growth of Venerupis corrugata (studied as Venerupis pullastra) by considering rates of ingestion, respiration and excretion at varying temperatures. Scope for growth was found to increase with temperature until the optimum at 20°C after which it declined. Hence, it is expected that Venerupis corrugata would be able to tolerate a long-term, chronic temperature increase and a short-term acute change with no mortality. However, a rapid increase in temperature may result in sub-optimal conditions for growth and reproduction and therefore an intolerance of low is recorded. When the temperature decreases, metabolic activity should quickly return to normal and therefore recoverability is recorded as very high. | Low | Very high | Very Low | Moderate |
Decrease in temperature [Show more]Decrease in temperature
For intertidal species or communities, the range of temperatures includes the air temperature regime for that species or community. Further details EvidenceThe geographic range of Venerupis corrugata extends to northern Norway. Therefore, the species must be capable of survival at lower temperatures than it does in Britain and Ireland and would be expected to tolerate a chronic temperature decrease over an extended period. However, in the harsh British winter of 1962-63, when the south coast experienced temperatures 5-6°C below average for a period of two months, Venerupis corrugata (studied as Venerupis pullastra) suffered 50% mortality around the Isle of Wight and near 100% mortality in Poole Harbour (Waugh, 1964). The species is less tolerant therefore of acute decreases in temperature and an intolerance of intermediate is recorded. Recoverability is recorded as high (see additional information below). | Intermediate | High | Low | Moderate |
Increase in turbidity [Show more]Increase in turbidity
EvidenceVenerupis corrugata does not require light and therefore is not directly affected by an increase in turbidity for the purposes of light attenuation. An increase in turbidity may affect primary production in the water column and therefore reduce the availability of phytoplankton food. However, phytoplankton will also immigrate from distant areas and so the effect may be decreased. As the turbidity increase only persists for a year, decreased food availability would probably only affect growth and fecundity so an intolerance of low is recorded. As soon as light levels return to normal, primary production will increase and hence recoverability is recorded as very high. | Low | Very high | Very Low | Low |
Decrease in turbidity [Show more]Decrease in turbidity
EvidenceVenerupis corrugata does not require light and therefore would not be affected by a decrease in turbidity for light attenuation purposes. It is possible that decreased turbidity would increase primary production in the water column and by micro-phyto benthos. The resultant increase in food availability may enhance growth and reproduction in Venerupis corrugata, but only if the food was previously limiting. | Tolerant | Not relevant | Not sensitive | High |
Increase in wave exposure [Show more]Increase in wave exposureA change of two ranks on the wave exposure scale (view glossary) e.g., from Exposed to Extremely exposed for a period of one year. Further details EvidenceVenerupis corrugata characteristically inhabits muddy sand in low-energy environments. This suggests that it would, in some way, be intolerant of an increase in wave exposure. An increase in wave exposure by two categories for one year would be likely to affect the species in several ways. Fine sediments would be eroded (Hiscock, 1983) resulting in the likely reduction of the habitat of Venerupis senegalensis. Strong wave action may cause damage or withdrawal of the siphons, resulting in loss of feeding opportunities and compromised growth. Furthermore, individuals may be dislodged by scouring from sand and gravel mobilized by increased wave action. For the above reasons, some mortality would be likely to occur and intolerance is recorded as intermediate. Recoverability is recorded as high (see additional information below). | Intermediate | High | Low | Low |
Decrease in wave exposure [Show more]Decrease in wave exposureA change of two ranks on the wave exposure scale (view glossary) e.g., from Exposed to Extremely exposed for a period of one year. Further details EvidenceVenerupis corrugata inhabits muddy sand in low-energy environments, including 'extremely sheltered' on the wave exposure scale (Connor et al., 1997a). It is an active suspension feeder and is capable of maintaining a feeding and respiration current by ciliary action. It is therefore unlikely to be affected by a decrease in wave exposure. However, it should be noted that decreased wave exposure will lead to changes in oxygenation and an increased risk of smothering due to siltation. These factors are discussed in their relevant sections. | Tolerant | Not relevant | Not sensitive | Low |
Noise [Show more]Noise
EvidenceNo information was found concerning the intolerance of Venerupis corrugata to noise. The siphons are likely to detect vibrations and are probably withdrawn as a predator avoidance mechanism, but the species is probably not sensitive at the level of the benchmark. | Tolerant | Not relevant | Not sensitive | Low |
Visual presence [Show more]Visual presenceBenchmark. The continuous presence for one month of moving objects not naturally found in the marine environment (e.g., boats, machinery, and humans) within the visual envelope of the species or community under consideration. Further details EvidenceNo information was found concerning the intolerance of Venerupis corrugata to visual disturbance. It is not a visual species and is not likely to be sensitive. | Tolerant | Not relevant | Not sensitive | Low |
Abrasion & physical disturbance [Show more]Abrasion & physical disturbanceBenchmark. Force equivalent to a standard scallop dredge landing on or being dragged across the organism. A single event is assumed for assessment. This factor includes mechanical interference, crushing, physical blows against, or rubbing and erosion of the organism or habitat of interest. Where trampling is relevant, the evidence and trampling intensity will be reported in the rationale. Further details. EvidenceDespite their robust body form, bivalves are vulnerable to physical abrasion. For example, as a result of dredging activity, mortality and shell damage has been reported in Mya arenaria and Cerastoderma edule (Cotter et al., 1997). Similarly, beam trawling in sand sediments was shown to adversely affect a number of bivalve species depending on their size, the robustness of their shells or density (Bradshaw and van Santbrink, 2000). Venerupis corrugata is a shallow burrower and may be damaged by the passing of a scallop dredge and so intolerance is recorded as intermediate. Recoverability is assessed as high (see additional information below). | Intermediate | High | Low | Low |
Displacement [Show more]DisplacementBenchmark. Removal of the organism from the substratum and displacement from its original position onto a suitable substratum. A single event is assumed for assessment. Further details EvidenceWhen displaced and returned to the surface of the substratum, Venerupis corrugata is able to bury itself (e.g. Kaschl & Carballeira, 1999). This probably occurs naturally due to shifting sediments caused by storms. However, while exposed at the sediment surface, the species is more vulnerable to predation and some mortality may occur. Intolerance is therefore recorded as intermediate. Recoverability is recorded as high (see additional information below). | Intermediate | High | Low | Low |
Chemical pressures
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Intolerance | Recoverability | Sensitivity | Evidence / Confidence | |
Synthetic compound contamination [Show more]Synthetic compound contaminationSensitivity is assessed against the available evidence for the effects of contaminants on the species (or closely related species at low confidence) or community of interest. For example:
The evidence used is stated in the rationale. Where the assessment can be based on a known activity then this is stated. The tolerance to contaminants of species of interest will be included in the rationale when available; together with relevant supporting material. Further details. EvidenceNo information was found concerning the effects of synthetic chemicals specifically on Venerupis corrugata. However, inference can be drawn from related species. Beaumont et al. (1989) concluded that bivalves are particularly sensitive to tri-butyl tin (TBT), the toxic component of many antifouling paints. For example, when exposed to 1-3 µg TBT/l, Cerastoderma edule and Scobicularia plana suffered 100% mortality after 2 weeks and 10 weeks respectively. There is also evidence that TBT causes recruitment failure in bivalves, either due to reproductive failure or larval mortality (Bryan & Gibbs, 1991). Venerupis decussata was found to be a potentially useful indicator of TBT pollution; concentrating and tolerating high levels of the compound in its tissues (bioconcentration factors ranged from 10,000 to 40,000) (Gomez-Arica et al., 1999). In light of the intolerance of other bivalve species, intolerance of Venerupis corrugata to synthetic chemicals is assessed as high. Recoverability is recorded as high (see additional information below). | High | High | Moderate | |
Heavy metal contamination [Show more]Heavy metal contaminationEvidenceThe capacity of bivalves to accumulate heavy metals in their tissues, far in excess of environmental levels, is well known. Reactions to sub-lethal levels of heavy metal stressors include siphon retraction, valve closure, inhibition of byssal thread production, disruption of burrowing behaviour, inhibition of respiration, inhibition of filtration rate, inhibition of protein synthesis and suppressed growth (see review by Aberkali & Trueman, 1985). Kaschl & Carballeira (1999) investigated the effect of sediment contamination on Venerupis corrugata (studied as Venerupis pullastra) by exposing the species to sediments spiked with copper sulphate. Following placement of clams on the sediment surface, slowing of burial was observed in proportion to the concentration of copper added to the sediment. The effect was detectable at a pore water concentration of 95 µg Cu/l. At the highest copper concentrations (spiking solution concentration > 125 mg Cu/l), the majority of clams closed up and did not bury. Spiking of the sediments with copper also resulted in re-emergence between 24 and 120 hours after burial, a behaviour not observed in controls. The proportion of clams re-emerging increased with the copper concentration in the sediment, and was concluded to be an avoidance behaviour. Kaschl & Carballeira (1999) suggested that the delay in burial at low copper concentrations was due to physiological disruption as it did not avoid exposure to the toxin and further increased the risk of predation. At higher concentrations, there was a payoff between toxin avoidance (by valve closure or re-emergence) and predator avoidance. The copper 10-day LC50 for Venerupis corrugata was found to be 88 µg/l in sandy sediments (Kaschl & Carballeira, 1999). For reference to polluted UK sediments, copper concentration in the interstitial water of Restronguet Creek sediments has been measured at 100µg/l (Bryan & Langston, 1992). Abbot (1977) investigated the intolerance of Venerupis corrugata (studied as Venerupis pullastra) to molybdenum and concluded it was not toxic at levels realistically encountered in the marine environment. In light of the lethal and sublethal effects of copper, intolerance of Venerupis corrugata to heavy metals is assessed as high. Recoverability is recorded as high (see additional information below). | High | High | Moderate | High |
Hydrocarbon contamination [Show more]Hydrocarbon contaminationEvidenceSuchanek (1993) reviewed the effects of oil on bivalves. Sublethal concentrations may produce substantially reduced feeding rates and/or food detection ability, probably due to ciliary inhibition. Respiration rates have increased at low concentrations and decreased at high concentrations. Generally, contact with oil causes an increase in energy expenditure and a decrease in feeding rate, resulting in less energy available for growth and reproduction. Sublethal concentrations of hydrocarbons also reduce byssal thread production (thus weakening attachment) and infaunal burrowing rates. No information was found on the effects of hydrocarbons on Venerupis corrugata specifically. Mortality following oil spills has been recorded in other bivalve species, e.g. Mya arenaria (Dow, 1978; Johnston, 1984) and Cerastoderma edule (SEEEC, 1998). Therefore, it is possible that some mortality of Venerupis corrugata would result from hydrocarbon contamination and an intolerance of intermediate is recorded. Recoverability is recorded as high (see additional information below). | Intermediate | High | Low | |
Radionuclide contamination [Show more]Radionuclide contaminationEvidenceStamouli & Papadapoulou (1990) investigated bioaccumulation of radioactive trivalent Chromium 51 (Cr-51) in a Venerupis species from Greece. Cr-51 is derived from nuclear tests, and disposal of radioactive waste and is one of the principal corrosion products of nuclear powered ships. Cr-51 was found to rapidly accumulate in Venerupis sp., predominantly in the shell, and reached a stable level in 8 days. No mortality was reported after 20 days. No further information was found concerning the effect of radionuclides on Venerupis corrugata. | No information | Not relevant | No information | Not relevant |
Changes in nutrient levels [Show more]Changes in nutrient levelsEvidenceNo information regarding the direct effects of nutrients on Venerupis corrugata was found. However, increased nutrients are likely to enhance ephemeral algal and phytoplankton growth, increase organic material deposition and enhance bacterial growth. At low levels, an increase in phytoplankton and benthic diatoms may increase food availability for Venerupis corrugata, thus enhancing growth and reproductive potential (e.g. Beiras et al., 1993). However, increased levels of nutrient (beyond the carrying capacity of the environment) may result in eutrophication, algal blooms and concomitant reductions in oxygen concentrations (e.g. Rosenberg & Loo, 1988). Rosenberg & Loo (1988) reported mass mortalities of Mya arenaria and Cerastoderma edule following a eutrophication event in Sweden, although no direct causal link was established. It is likely therefore that a dramatic increase in nutrient levels would cause some mortality of Venerupis corrugata and so an intolerance of intermediate is recorded. Recoverability is recorded as high (see additional information below). | Intermediate | High | Low | |
Increase in salinity [Show more]Increase in salinity
EvidenceVenerupis corrugata inhabits areas with full salinity (Connor et al., 1997a) and therefore probably relatively tolerant of increases in salinity. No information was found concerning intolerance to hypersaline conditions. | Tolerant | Not relevant | Not sensitive | High |
Decrease in salinity [Show more]Decrease in salinity
EvidenceNo information was found concerning the effects of decreasing salinity on Venerupis corrugata specifically. However, Lange (1972) reported that the muscle volume of Venerupis rhomboides, a stenohaline species, increased as salinity decreased, and hence concluded that the species was unable to regulate its muscle volume. Euryhaline bivalve species, however, e.g. Mya arenaria, Cerastoderma edule, were able to regulate muscle volume with changing salinity. Venerupis japonica displayed a variety of behavioural reactions in response to reduced salinity in the Sea of Japan (Yaroslavtseva & Fedoseeva, 1978). Salinities typically encountered ranged from 11-30 psu over the course of a day. Venerupis japonica was active down to 20 psu, below which it reacted with siphon withdrawal and valve closure. Mortality occurred if salinity remained below 14 psu for an extended period. Venerupis corrugata occurs in variable salinity conditions (Connor et al., 1997a). The benchmark includes a change of 2 categories on the salinity scale for a week (see glossary). This would place some of the population in a reduced salinity environment (<18 psu) and it is likely that some mortality would occur. An intolerance of intermediate is therefore recorded. Recoverability is recorded as high (see additional information below). | Intermediate | High | Low | Low |
Changes in oxygenation [Show more]Changes in oxygenationBenchmark. Exposure to a dissolved oxygen concentration of 2 mg/l for one week. Further details. EvidenceVenerupis corrugata is an aerobic organism and therefore will be intolerant in some degree to lack of oxygen. No evidence was found for specific effects of reduced oxygenation on Venerupis senegalensis but inferences can be drawn from the effects on other species. Jorgensen (1980) recorded the effects of low oxygen levels on benthic fauna in a Danish fjord. At dissolved oxygen concentrations of 0.2-1.0 mg/l the bivalves, Cerastoderma edule and Mya arenaria, suffered mortality between 2 and 7 days. Rosenberg & Loo (1988) reported mass mortalities of Mya arenaria and Cerastoderma edule in Sweden, following a eutrophication event which resulted in low oxygen concentrations over several years (often <1 ml O2/l). At the benchmark level of exposure (2 mg/l for one week) it is expected that some mortality of Venerupis senegalensis would occur and an intolerance of intermediate is recorded. Recoverability is recorded as high (see additional information below). | Intermediate | High | Low | Low |
Biological pressures
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Intolerance | Recoverability | Sensitivity | Evidence / Confidence | |
Introduction of microbial pathogens/parasites [Show more]Introduction of microbial pathogens/parasitesBenchmark. Sensitivity can only be assessed relative to a known, named disease, likely to cause partial loss of a species population or community. Further details. EvidenceNavas et al. (1992) investigated the parasites of Venerupis corrugata (studied as Venerupis pullastra), from a population in south west Spain. The following were recorded:
Perkinsus atlanticus was also recorded as causing mortality in Venerupis decussatus and Venerupis aureus. Freire-Santos et al. (2000) recorded the presence of oocysts of Cryptosporidium sp. in Venerupis senegalensis (studied as Venerupis pullastra) collected from north west Spain and destined for human consumption. | Intermediate | High | Low | High |
Introduction of non-native species [Show more]Introduction of non-native speciesSensitivity assessed against the likely effect of the introduction of alien or non-native species in Britain or Ireland. Further details. EvidenceNo information was found concerning the intolerance of Venerupis corrugata to alien or introduced species. | No information | Not relevant | No information | Not relevant |
Extraction of this species [Show more]Extraction of this speciesBenchmark. Extraction removes 50% of the species or community from the area under consideration. Sensitivity will be assessed as 'intermediate'. The habitat remains intact or recovers rapidly. Any effects of the extraction process on the habitat itself are addressed under other factors, e.g. displacement, abrasion and physical disturbance, and substratum loss. Further details. EvidenceVenerupis corrugata is a very important commercial shellfish in Spain. It is harvested from the wild and raised in aquaculture (Jara-Jara et al., 2000). No information was found concerning the effect of harvesting on wild populations but it can be assumed that high mortality would occur in the intertidal where populations are more accessible to harvesters. However, not all individuals would be found and small ones would probably be left. The subtidal population is less likely to be exploited. An intolerance of intermediate is therefore recorded. Recoverability is recorded as high (see additional information below). | Intermediate | High | Low | Low |
Extraction of other species [Show more]Extraction of other speciesBenchmark. A species that is a required host or prey for the species under consideration (and assuming that no alternative host exists) or a keystone species in a biotope is removed. Any effects of the extraction process on the habitat itself are addressed under other factors, e.g. displacement, abrasion and physical disturbance, and substratum loss. Further details. EvidenceCommercial extraction of other infaunal species is likely to have an effect on Venerupis corrugata where their distributions overlap. Hall & Harding (1997) demonstrated that commercial cockle harvesting by suction dredging had significant effects on soft-sediment infaunal communities. Following dredging, species numbers were reduced by up to 30% and abundances by up to 50%. Bait harvesting has also been shown to impact infaunal bivalves. For example, mechanical harvesting for Arenicola marina resulted in a drastic reduction in the population of Mya arenaria in the Wadden Sea (Beukema, 1995). Some mortality of Venerupis corrugata may occur therefore due to harvesting of other species so an intolerance of intermediate is recorded. Recoverability is recorded as high (see additional information below). | Intermediate | High | Low |
Additional information
Venerupis corrugata is a long-lived, fast-growing species that reaches maturity within one year and spawns several times in one season (Johannessen, 1973b; Perez Camacho, 1980). No information was found concerning the number of gametes produced, but the number is likely to be high as with other bivalves exhibiting planktotrophic development (Olafsson et al., 1994). The larvae remain in the plankton for up to 30 days (Fish & Fish, 1996) and hence have a high potential for dispersal. Given these life history features, it is expected that Venerupis corrugata would have strong powers of recoverability. However, recoverability will be influenced by pre- and post-recruitment processes. The species exhibits pronounced year class variability in abundance (Johannessen, 1973b; Perez Camacho, 1980) which suggests that recruitment is patchy and/or post-settlement processes are highly variable. Olafsson et al. (1994) reviewed the potential effects of pre and post-recruitment processes. Recruitment may be limited by predation of the larval stage or inhibition of settlement due to intraspecific density-dependent competition. Post-settlement processes affecting survivability include predation by epibenthic consumers, physical disturbance of the substratum and density-dependent starvation of recent recruits. Hence, for Venerupis corrugata, annual predictable population recovery is not certain. However, given the strong powers of recoverability discussed above it is expected that recovery would occur within five years and therefore is recorded as High.
Importance review
Policy/legislation
- no data -
Status
National (GB) importance | - | Global red list (IUCN) category | - |
Non-native
Parameter | Data |
---|---|
Native | - |
Origin | - |
Date Arrived | - |
Importance information
Predation. Johannessen (1973a) observed predation of Venerupis corrugata by oystercatchers, Haemotopus ostralegus. It was suggested that predation by shore birds may explain why intertidal populations of Venerupis corrugata were dominated by small individuals, as the larger ones were predated preferentially.
Management. Venerupis corrugata is harvested from the wild in Spain and is also the subject of commercial aquaculture (Jara-Jara et al., 2000). It has been the subject of extensive research concerning diet and growth rate (e.g. Albentosa et al., 1993; Beiras et al., 1993). Jara-Jara et al. (2000) suggested the possibility of raising Venerupis corrugata in the effluent from fin fish aquaculture.
Bibliography
Abbott, O.J., 1977. The toxicity of ammonium molybdate to marine invertebrates. Marine Pollution Bulletin, 8, 204-205.
Aberkali, H.B. & Trueman, E.R., 1985. Effects of environmental stress on marine bivalve molluscs. Advances in Marine Biology, 22, 101-198.
Albentosa, M., Beiras, R. & Camacho, A.P., 1994. Determination of optimal thermal conditions for growth of clam (Venerupis pullastra) seed. Aquaculture, 126, 315-328.
Beaumont, A.R., Newman, P.B., Mills, D.K., Waldock, M.J., Miller, D. & Waite, M.E., 1989. Sandy-substrate microcosm studies on tributyl tin (TBT) toxicity to marine organisms. Scientia Marina, 53, 737-743.
Beiras, R., Perez-Camacho, A. & Albentosa, M., 1993. Influence of food concentration on energy balance and growth performance of Venerupis pullastra seed reared in an open flow system. Aquaculture, 116, 353-365.
Beukema, J.J., 1995. Long-term effects of mechanical harvesting of lugworms Arenicola marina on the zoobenthic community of a tidal flat in the Wadden Sea. Netherlands Journal of Sea Research, 33, 219-227.
Bruce, J.R., Colman, J.S. & Jones, N.S., 1963. Marine fauna of the Isle of Man. Liverpool: Liverpool University Press.
Bryan, G.W. & Gibbs, P.E., 1991. Impact of low concentrations of tributyltin (TBT) on marine organisms: a review. In: Metal ecotoxicology: concepts and applications (ed. M.C. Newman & A.W. McIntosh), pp. 323-361. Boston: Lewis Publishers Inc.
Bryan, G.W. & Langston, W.J., 1992. Bioavailability, accumulation and effects of heavy metals in sediments with special reference to UK estuaries: a review. Environmental Pollution, 76, 89-131.
Connor, D.W., Dalkin, M.J., Hill, T.O., Holt, R.H.F. & Sanderson, W.G., 1997a. Marine biotope classification for Britain and Ireland. Vol. 2. Sublittoral biotopes. Joint Nature Conservation Committee, Peterborough, JNCC Report no. 230, Version 97.06., Joint Nature Conservation Committee, Peterborough, JNCC Report no. 230, Version 97.06.
Cotter, A.J.R., Walker, P., Coates, P., Cook, W. & Dare, P.J., 1997. Trial of a tractor dredger for cockles in Burry Inlet, South Wales. ICES Journal of Marine Science, 54, 72-83.
Dow, R.C., 1978. Size-selective mortalities of clams in an oil spill site. Marine Pollution Bulletin, 9, 45-48.
Fish, J.D. & Fish, S., 1996. A student's guide to the seashore. Cambridge: Cambridge University Press.
Freire-Santos, F., Oteiza-Lopez, A.M., Vergara-Castablanco, C.A., Ares-Mazas, E., Alvarez-Suarez, E. & Garcia-Martin, O., 2000. Detection of Cryptosporidium oocysts in bivalve molluscs destined for human consumption. Journal of Parasitology, 86, 853-854.
Gomez-Ariza, J.L., Morales, E. & Giraldez, I., 1999. Uptake and elimination of tributyltin in clams, Venerupis decussata. Marine Environmental Research, 47, 399-413.
Hall, S.J. & Harding, M.J.C., 1997. Physical disturbance and marine benthic communities: the effects of mechanical harvesting of cockles on non-target benthic infauna. Journal of Applied Ecology, 34, 497-517.
Hayward, P., Nelson-Smith, T. & Shields, C. 1996. Collins pocket guide. Sea shore of Britain and northern Europe. London: HarperCollins.
Hayward, P.J. & Ryland, J.S. (ed.) 1995b. Handbook of the marine fauna of North-West Europe. Oxford: Oxford University Press.
Hiscock, K., 1983. Water movement. In Sublittoral ecology. The ecology of shallow sublittoral benthos (ed. R. Earll & D.G. Erwin), pp. 58-96. Oxford: Clarendon Press.
Howson, C.M. & Picton, B.E., 1997. The species directory of the marine fauna and flora of the British Isles and surrounding seas. Belfast: Ulster Museum. [Ulster Museum publication, no. 276.]
Jara-Jara, R., Abad, M., Pazos, A.J., Perez-Paralle, M.L. & Sanchez, J.L., 2000. Growth and reproductive patterns in Venerupis pullastra seed reared in waste water effluent from a fish farm in Galicia (N.W. Spain). Journal of Shellfish Research, 19, 949-956.
JNCC (Joint Nature Conservation Committee), 1999. Marine Environment Resource Mapping And Information Database (MERMAID): Marine Nature Conservation Review Survey Database. [on-line] http://www.jncc.gov.uk/mermaid
Johannessen, O.H., 1973a. Length and weight relationships and the potential production of the bivalve Venerupis pullastra (Montagu) on a sheltered beach in western Norway. Sarsia, 53, 41-48.
Johannessen, O.H., 1973b. Population structure and individual growth of Venerupis pullastra (Montagu) (Lamellibranchia). Sarsia, 52, 97-116.
Johnston, R., 1984. Oil Pollution and its management. In Marine Ecology: A Comprehensive, Integrated Treatise on Life in the Oceans and Coastal Waters vol. 5. Ocean Management, part 3 (ed. O. Kinne), pp.1433-1582. New York: John Wiley & Sons Ltd.
Jorgensen, B.B., 1980. Seasonal oxygen depletion in the bottom waters of a Danish fjord and its effect on the benthic community. Oikos, 32, 68-76.
Kaschl, A. & Carballeira, A., 1999. Behavioural responses of Venerupis decussata (Linnaeus, 1758) and Venerupis pullastra (Montagu, 1803) to copper spiked marine sediments. Boletin. Instituto Espanol de Oceanografia, 15, 383-394.
Lange, R., 1972. Some recent work on osmotic, ionic and volume regulation in marine animals. Oceanography and Marine Biology: an Annual Review, 10, 97-136.
Maurer, D., Keck, R.T., Tinsman, J.C., Leatham, W.A., Wethe, C., Lord, C. & Church, T.M., 1986. Vertical migration and mortality of marine benthos in dredged material: a synthesis. Internationale Revue der Gesamten Hydrobiologie, 71, 49-63. DOI https://doi.org/10.1002/iroh.19860710106
Navas, J.I., Castillo, M.C., Vera, P. & Ruiz-Rico, M., 1992. Principal parasites observed in clams, Ruditapes decussatus (L.), Ruditapes philippinarum (Adam et Reeve), Venerupis pullastra (Montagu) and Venerupis aureus (Gmelin) from the Huelva coast (SW Spain). Aquaculture, 107, 193-199.
Olafsson, E.B., Peterson, C.H. & Ambrose, W.G. Jr., 1994. Does recruitment limitation structure populations and communities of macro-invertebrates in marine soft sediments: the relative significance of pre- and post-settlement processes. Oceanography and Marine Biology: an Annual Review, 32, 65-109
Perez Camacho, A., 1980. Biology of Venerupis pullastra (Montagu, 1803) and Venerupis decussata (Linne, 1767) (Mollusca, Bivalvia). Determining factors of production. Boletin del Instituto Espanol Oceanographica, 5, 43-76.
Picton, B.E. & Costello, M.J., 1998. BioMar biotope viewer: a guide to marine habitats, fauna and flora of Britain and Ireland. [CD-ROM] Environmental Sciences Unit, Trinity College, Dublin.
Quayle, D.B., 1952. The rate of growth of Venerupis pullastra (Montagu) at Millport, Scotland. Proceedings of the Royal Society of Edinburgh. B, 64, 384-406.
Rosenberg, R. & Loo, L., 1988. Marine eutrophication induced oxygen deficiency: effects on soft bottom fauna, western Sweden. Ophelia, 29, 213-225.
SEEEC (Sea Empress Environmental Evaluation Committee), 1998. The environmental impact of the Sea Empress oil spill. Final Report of the Sea Empress Environmental Evaluation Committee, 135 pp., London: HMSO.
Smith, S.M. & Heppell, D., 1991. Checklist of British marine Mollusca. National Museums of Scotland (National Museums of Scotland Information Series no.11).
Stamouli, M. & Papadopoulou, C., 1990. Trivalent Cr-51 bioaccumulation study in two mollusc species. Thalassographica. Athens, 13 suppl. 1, 49-52.
Stenton-Dozey, J.M.E. & Brown, A.C., 1994. Short term changes in the energy balance of Venerupis corrugatus (Bivalvia) in relation to tidal availability of natural suspended particles. Marine Ecology Progress Series, 103, 57-64.
Suchanek, T.H., 1993. Oil impacts on marine invertebrate populations and communities. American Zoologist, 33, 510-523. DOI https://doi.org/10.1093/icb/33.6.510
Waugh, G.D., 1964. Effect of severe winter of 1962-63 on oysters and the associated fauna of oyster grounds of southern England. Journal of Animal Ecology, 33, 173-175.
Yaroslavsteva, L.M. & Fedoseeva, S.V., 1978. Adaptation of some marine mollusks to estuarine habitats. Soviet Journal of Marine Biology, 4, 820-826.
Datasets
Centre for Environmental Data and Recording, 2018. Ulster Museum Marine Surveys of Northern Ireland Coastal Waters. Occurrence dataset https://www.nmni.com/CEDaR/CEDaR-Centre-for-Environmental-Data-and-Recording.aspx accessed via NBNAtlas.org on 2018-09-25.
Cofnod – North Wales Environmental Information Service, 2018. Miscellaneous records held on the Cofnod database. Occurrence dataset: https://doi.org/10.15468/hcgqsi accessed via GBIF.org on 2018-09-25.
Conchological Society of Great Britain & Ireland, 2018. Mollusc (marine) data for Great Britain and Ireland - restricted access. Occurrence dataset: https://doi.org/10.15468/4bsawx accessed via GBIF.org on 2018-09-25.
Conchological Society of Great Britain & Ireland, 2023. Mollusc (marine) records for Great Britain and Ireland. Occurrence dataset: https://doi.org/10.15468/aurwcz accessed via GBIF.org on 2024-09-27.
Environmental Records Information Centre North East, 2018. ERIC NE Combined dataset to 2017. Occurrence dataset: http://www.ericnortheast.org.ukl accessed via NBNAtlas.org on 2018-09-38
Fenwick, 2018. Aphotomarine. Occurrence dataset http://www.aphotomarine.com/index.html Accessed via NBNAtlas.org on 2018-10-01
Kent Wildlife Trust, 2018. Biological survey of the intertidal chalk reefs between Folkestone Warren and Kingsdown, Kent 2009-2011. Occurrence dataset: https://www.kentwildlifetrust.org.uk/ accessed via NBNAtlas.org on 2018-10-01.
Kent Wildlife Trust, 2018. Kent Wildlife Trust Shoresearch Intertidal Survey 2004 onwards. Occurrence dataset: https://www.kentwildlifetrust.org.uk/ accessed via NBNAtlas.org on 2018-10-01.
Merseyside BioBank., 2018. Merseyside BioBank (unverified). Occurrence dataset: https://doi.org/10.15468/iou2ld accessed via GBIF.org on 2018-10-01.
National Trust, 2017. National Trust Species Records. Occurrence dataset: https://doi.org/10.15468/opc6g1 accessed via GBIF.org on 2018-10-01.
NBN (National Biodiversity Network) Atlas. Available from: https://www.nbnatlas.org.
Norfolk Biodiversity Information Service, 2017. NBIS Records to December 2016. Occurrence dataset: https://doi.org/10.15468/jca5lo accessed via GBIF.org on 2018-10-01.
OBIS (Ocean Biodiversity Information System), 2024. Global map of species distribution using gridded data. Available from: Ocean Biogeographic Information System. www.iobis.org. Accessed: 2024-10-03
Outer Hebrides Biological Recording, 2018. Invertebrates (except insects), Outer Hebrides. Occurrence dataset: https://doi.org/10.15468/hpavud accessed via GBIF.org on 2018-10-01.
South East Wales Biodiversity Records Centre, 2018. SEWBReC Molluscs (South East Wales). Occurrence dataset: https://doi.org/10.15468/jos5ga accessed via GBIF.org on 2018-10-02.
Citation
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Last Updated: 13/08/2007