IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

The reproductive biology of Scyliorhinus canicula in the Bristol Channel, U.K.
Ellis, J.R.; Shackley, S.E. (1997). The reproductive biology of Scyliorhinus canicula in the Bristol Channel, U.K. J. Fish Biol. 51(2): 361-372. hdl.handle.net/10.1111/j.1095-8649.1997.tb01672.x
In: Journal of Fish Biology. Fisheries Society of the British Isles: London,New York,. ISSN 0022-1112, more
Peer reviewed article  

Available in Authors 

Keywords
    Elasmobranchii [WoRMS]; Scyliorhinidae Gill, 1862 [WoRMS]; Marine
Author keywords
    Scyliorhinidae; Elasmobranchii; reproductive biology; maturity; oocytes; egg-case deposition; intersexuality; gonadosomatic index

Authors  Top 
  • Ellis, J.R.
  • Shackley, S.E.

Abstract
    Among 972 Scyliorhinus canicula, the overall sex ratio (males:females) was 1:1·23. Males matured between 490 and 540 mm LT with 50% maturity at 520 mm. Females matured between 520 and 640 mm LT with 50% maturity at 550 mm. Female gonadosomatic index peaked in May. Fecundity increased with fish length. The egg laying season lasted 10 months with a peak in June and July. The importance of erect, sessile invertebrates such as bryozoans, poriferans and hydroids as egg-case deposition sites has been established. Recently hatched fish were born in an equal sex ratio and at a mean length of 100·5 mm and mean weight of 3·07 g. One intersexual fish is described.

All data in IMIS is subject to the VLIZ privacy policy Top | Authors