BIOTIC

BIOTIC Species Information for Gobius couchi

Researched by

Karen Riley

Data supplied by

MarLIN

Refereed by

Prof. Robert Patzner

Reproduction/Life History

Reproductive type

Gonochoristic

Developmental mechanism

Oviparous

Reproductive Season

Spring and summer

Reproductive Location

Insufficient information

Reproductive frequency

Annual protracted

Regeneration potential

Life span

See additional information

Age at reproductive maturity

Insufficient information

Generation time

Insufficient information

Fecundity

Insufficient information

Egg/propagule size

Insufficient information

Fertilization type

External

Larvae/Juveniles
Larval/Juvenile dispersal potential	1km-10km	Larval settlement period	Insufficient information
Duration of larval stage	Insufficient information

Reproduction Preferences Additional Information

Gobius couchi has a life span of up to 6 years (Miller, 1986).
Very little information is available detailing the reproduction of Gobius couchi, but it is probable that this is fairly similar to that of other Gobiidae. For instance, Gobius cobitis, Pomatoschistus microps, and Pomatoschistus minutus usually produce 2 clutches of eggs each breeding season. Eggs are laid by the female and attached to the under-surface of large boulders or shells. The eggs are then fertilized and guarded by the male. Thus the eggs are protected and kept inshore until the feeding larvae hatch. The breeding season usually occurs in spring and early summer in Britain. Fecundity will probably vary between 2,000 and 12,000, within the same range as that of other Gobiidae.

Reproduction References

Potts & Swaby, 1992, Miller, 1986,