BIOTIC Species Information for Chlamys spp.
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Researched by | Sean Lindsley-Leake |
Data supplied by | MarLIN |
Refereed by | This information is not refereed |
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Reproduction/Life History |
Reproductive type | Permanent hermaphrodite
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Developmental mechanism | Planktotrophic
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Reproductive Season | See additional information |
Reproductive Location | Water column |
Reproductive frequency | Annual episodic |
Regeneration potential |
No |
Life span | See additional information |
Age at reproductive maturity | See additional information |
Generation time | 1-2 years |
Fecundity | 3-6 million |
Egg/propagule size | 70 µm |
Fertilization type | External |
Larvae/Juveniles |
Larval/Juvenile dispersal potential | 1km-10km |
Larval settlement period | Year round |
Duration of larval stage | 1-2 months |
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Reproduction Preferences Additional Information | Life span varies according to location and species. With Chlamys opercularis having a life span of 3-5years, and Chlamys icelandica living for in excess of 20 years. Whilst initial reproductive maturity is reached in 1 year, this spawning is seen to be significantly less than in specimens that are two years old or older. There are three spawning periods in each year, July-August, Sept-Oct, Jan-Feb, with the main spawning period in August. The spat aseetling time is substrate dependant with the main recruitment taking place over a period of 15 to 25 days during September. |
Reproduction References |
Hodgson & Burke, 1988, Spencer, 2002, Bokordt et al., 2000, Broom & Mason, 1978, Mason, 1983, |