Growth of the Silverside Atherinella brasiliensis in Tramandaí Estuary, Southern Brazil (Actinopterygii: Atherinopsidae)

Neotropical Ichthyology

Nelson F. Fontoura¹  Giovana Bervian¹ 

[1] Pontifícia Universidade Católica do Rio Grande do Sul;

关键词: Atherinidae;    Longevity;    Life cycle;    Life history;   

DOI  :  10.1590/S1679-62252007000400008

来源: DOAJ

【 摘 要 】

The growth of Atherinella brasiliensis (Quoy & Gaimard, 1824) was studied through monthly samples taken at Tramandaí Lagoon, Imbé County, Rio Grande do Sul, Brazil. Animals were captured using a beach seine net. Length-weight relationships and age- growth curves for males and females were adjusted. The growth parameters of the von Bertalanffy growth formulae are Linf=16.0 and k=0.883 for males and Linf=17.0 and k=0.825 for females. First reproduction occurred one year after recruitment. Once reaching maturity, adults of A. brasiliensis reproduced once more in the next spring with two-year-olds and disappeared soon after from size frequency distributions. A few captured animals showed a size compatible with an age of three years.

【 授权许可】

Unknown