巴西北海岸Parnaíba三角洲环境保护区商业渔民采得的梭子鱼(硬骨鱼:梭子鱼科)成虫生殖生物学定量指标

IF 0.5 4区农林科学 Q4 FISHERIES

Boletim do Instituto de Pesca Pub Date : 2022-11-11 DOI:10.20950/1678-2305/bip.2022.48.e726

I. M. Nascimento, Ana Luiza Caldas Diniz, Yanna Leidy Ketley Fernandes Cruz, A. Azevedo, Rosana Sousa de Oliveira Pinho Azevedo, D. B. Pinheiro-Sousa, Z. Almeida, R. N. F. Carvalho-Neta

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引用次数: 0

摘要

对商业和休闲垂钓来说，十一卷棘鱼是一种非常重要的资源。本研究旨在评价巴西Parnaíba三角洲环境保护区(Delta Environmental Protection Area, Brazil)的C. decimalis生殖生物学定量指标。对155只雄、雌分别为135只(87.10%)和20只(12.90%)，在生殖周期的不同阶段进行参数分析。结果表明，雌株异速生长为正，雄株异速生长为负。男女性别比为1:6.75。首次估计成熟(L50)雌虫为57.21 cm，雄虫为54.55 cm。该物种产卵多次，卵母细胞分批成熟，每隔一段时间释放一次。根据这项研究的结果，可以注意到繁殖高峰发生在2月，5月和11月。因此，建议在这几个月内避免捕获该物种。

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Quantitative indicators of the reproductive biology of adult specimens of Centropomus undecimalis (Teleost: Centropomidae) obtained from commercial fishermen in the Parnaíba Delta Environmental Protection Area, north coast of Brazil

Centropomus undecimalis (popularly known as common snook) is a very important resource for commercial and recreational fishing. This study aimed to evaluate quantitative indicators of the reproductive biology of C. undecimalis in the Parnaíba Delta Environmental Protection Area (Brazil). The parameters were analyzed at the different stages of the reproductive cycle of 155 specimens, 135 (87.10%) males and 20 (12.90%) females. The results showed positive allometric growth for females and negative allometric growth for males. The sex ratio was 1:6.75 (females: males). The first estimated maturation (L50) was 57.21 cm for females and 54.55 cm for males. The species spawns multiple times, with oocytes maturing in batches, being released at intervals. According to the results of this study, it was possible to notice that reproductive peaks occurred in February, May, and November. Therefore, it is recommended that the capture of this species be avoided during these months.

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来源期刊

Boletim do Instituto de Pesca FISHERIES-ZOOLOGY

CiteScore

0.80

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： To publish original articles of research and short communications in the following áreas: Fisheries, Aquaculture, Zootechnology, Limnology, Oceanography, Biology and Pathology of aquatic organisms. The publication depends on the approval of the Editorial Board, based on the peer review.