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Growth of young-of-the-year European anchovy (Engraulis encrasicolus, L.) in the Bay of Biscay
被引:20
|作者:
Aldanondo, Naroa
[1
]
Cotano, Unai
[1
]
Etxebeste, Egoitz
[1
]
机构:
[1] AZTI Tecnalia, Marine Res Unit, Pasaia 20110, Basque Country, Spain
关键词:
Bay of Biscay;
early life stage;
European anchovy;
fish length-otolith radius relationship;
growth;
otolith;
HERRING CLUPEA-HARENGUS;
EARLY-LIFE HISTORY;
SARDINE SARDINA-PILCHARDUS;
MARINE FISH LARVAE;
SMALL PELAGIC FISH;
OTOLITH MICROSTRUCTURE;
SOMATIC GROWTH;
INCREMENTS DEPOSITION;
POMATOMUS SALTATRIX;
JUVENILE;
D O I:
10.3989/scimar.2011.75n2227
中图分类号:
Q17 [水生生物学];
学科分类号:
071004 ;
摘要:
Otolith daily increment analysis was used to describe the first growth season of young-of-the-year anchovy (Engraulis encrasicolus L.) in the Bay of Biscay. Anchovy larvae and juveniles were sampled during their growth season over a three year period (2004, 2005 and 2006). A logistic curve was fitted to the length at age data. At the end of the first year of growth, length was 168.3 mm, with a maximum growth rate of 1.85 mm day(-1) for 73 days after hatching. Moreover, a Gompertz growth model was applied to estimate otolith growth parameters. At the end of the first year the otolith radius was 1759 mu m, with a maximum growth increment of 22.19 mu m day(-1) observed 56 days after hatching. Standard length and otolith radius were closely related; however, this relationship showed a characteristic change from exponential in the larval stage to linear in the juvenile stage.
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页码:227 / 235
页数:9
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