Trends in age-at-recruitment and juvenile growth of cuttlefish, Sepia officinalis, from the English Channel ...
No abstracts are to be cited without prior reference to the author.The cuttlefish Sepia officinalis is a major fishery resource in the English Channel, and amongst the largest cephalopod stocks in the Northeast Atlantic. Cuttlefish live for approximately 2 years, and consequently landings depend hig...
| Main Authors: | , , |
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| Format: | Article in Journal/Newspaper |
| Language: | unknown |
| Published: |
ASC 2004 - CC - Theme session
2024
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.17895/ices.pub.25349245 https://ices-library.figshare.com/articles/conference_contribution/Trends_in_age-at-recruitment_and_juvenile_growth_of_cuttlefish_Sepia_officinalis_from_the_English_Channel/25349245 |
| Summary: | No abstracts are to be cited without prior reference to the author.The cuttlefish Sepia officinalis is a major fishery resource in the English Channel, and amongst the largest cephalopod stocks in the Northeast Atlantic. Cuttlefish live for approximately 2 years, and consequently landings depend highly upon recruitment success. In this study, we analyze early life stages for differences in age-at-recruitment and juvenile growth. Biological samples of recruits were collected monthly during 2000, 2001 and 2002, and samples of pre-recruits in 2000 and 2002, from the coastal waters of the UK and France. Age in days was determined by statolith analysis. Significant differences in age-at-recruitment were found between the autumnal recruitment, and the rest of the year, and between cohorts. Juvenile growth models were fitted for pre-recruit specimens, and indicated growth rate was significantly higher in 2002 than in 2000. Spatial differences observed were found in 2000, and indicated pre-recruit growth may depend ... |
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