Sex ratio, gonad maturity and size-structure of Pagelus bellotti in Sierra Leone

نویسندگان

چکیده

A total of 135 specimens Pagellus bellotti were randomly collected from artisanal boats in August 2018. Study sex ratio, gonad maturity and size-structure bellottii is meagre Sierra Leone, forms the basis present study. The study will contribute to current knowledge promote rational exploitation stock. Length weight measured using a fish measuring board (cm) digital scale (g) respectively. Sex macroscopically assessed. Results showed dominant males (71.9%) significant difference observed (1:2.6) expected (1:1) female: male ratios (p <0.05). Only 11.9% 11.1% female gonads transcended developed stage (Stage IV). length-frequency distribution for combined was unimodal (modal class, 17cm-20.9cm). Mean length respectively were, 19.04±0.32cm 98.85±5.08g 17.43±0.54cm 78.61±6.32g females. Growth exponent (b) male, 2.809, 2.928 2.850 correlation coefficient all categories (r > 0.9). Indexes condition greater than 1.0 (K 1) categories. portrayed heterogeneous gender population Pagelus vast similarity reproductive strategies by both sexes. comprised one size group may be growing larger pattern near-isometric females negative allometric males, sexes better >1.0). An annual could provide further insight.

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ژورنال

عنوان ژورنال: Journal of applied science and environmental management

سال: 2021

ISSN: ['2659-1502', '2659-1499']

DOI: https://doi.org/10.4314/jasem.v24i12.22