Determination of age and growth of the striped seabream Lithognathus mormyrus (Sparidae) in the Canarian archipelago by otolith readings and backcalculation

被引:0
|
作者
Pajuelo, JG [1 ]
Lorenzo, JM [1 ]
Méndez, M [1 ]
Coca, J [1 ]
Ramos, AG [1 ]
机构
[1] Univ Las Palmas Gran Canaria, Dept Biol, Las Palmas Gran Canaria 35017, Spain
关键词
Lithognathus mormyrus; age; growth; otolith readings; backcalculation; Canary Islands;
D O I
暂无
中图分类号
Q17 [水生生物学];
学科分类号
071004 ;
摘要
The age and growth of the striped seabream Lithognathus mormyrus caught off the Canary Islands (central-east Atlantic) from January to December 1999 were studied. A total of 496 individuals, ranging in size between 113 and 350 mm total length, were examined. Otoliths clearly showed the ring pattern common to teleost fishes. One year's growth was made up of one opaque and one translucent ring. The opaque ring was deposited during the summer months and the translucent one during the winter months. Fish aged 0-8 years old were found. The von Bertalanffy growth parameters for all fish were: L-infinity=427 mm, k=0.19 year(-1), and t(0)=1.46 year. The otolith readings for estimating age and growth were confirmed by using the backcalculation method.
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页码:27 / 32
页数:6
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