Age, growth and longevity of the gray triggerfish, Balistes capriscus (Gmelin, 1788), from the Southeastern Brazilian Coast

Age, growth and longevity of gray triggerfish Balistes capriscus from the coast near Sao Paulo were estimated from first dorsal spine sections of 1,800 fish. The translucent zone was formed during winter (June, July and August) and the reproductive period (December, January, February). The von Berta...

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Bibliographic Details
Published inScientia marina Vol. 66; no. 2; pp. 167 - 173
Main Author Bernardes, R A
Format Journal Article
LanguageEnglish
Published Consejo Superior de Investigaciones Científicas 01.06.2002
Subjects
age
Balistes capriscus
brazil
gray triggerfish
growth
longevity
Marine
ASW, Brazil
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Summary:Age, growth and longevity of gray triggerfish Balistes capriscus from the coast near Sao Paulo were estimated from first dorsal spine sections of 1,800 fish. The translucent zone was formed during winter (June, July and August) and the reproductive period (December, January, February). The von Bertalanffy growth equations were: FL = 514.9 [1 - e - 0.2625 (t + 0.0391) ] for males, and FL = 504.6 [1 - e - 0.2748 (t - 0.0304) ] for females. The longevity estimated was 11 years old for males and females. The instantaneous mortality rates estimated were 0.26 for males and 0.27 for females. The weight-length relationships for both sexes of gray triggerfish together were Wt = 0.000004 FL 3.299.
Bibliography:ObjectType-Article-1
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ISSN:0214-8358
1886-8134
DOI:10.3989/scimar.2002.66n2167