O tamanho de primeira maturação como parâmetro para estabelecimento de tamanho mínimo de captura para corvina no sudeste do Brasil
O tamanho de primeira maturação como parâmetro para estabelecimento de tamanho mínimo de captura para corvina no sudeste do Brasil
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巴西南部的科维纳最年轻的年龄阶段
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
F. Araújo
中科院分区：
文献类型：
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作者：
Rosa da Silva Santos;J. P. C. Silva;M. J. D. Costa;F. Araújo
富氏微囊藻是巴西东南部最重要的渔业资源之一。然而，巴西关于开采这种资源的法律还处于起步阶段。我们的主要目的是评估乌巴图巴人制定的生殖策略是否与现有信息一致，并评估其是否适合支持保护措施。共检查了359人，性别比不平衡(1名女性：1.56名男性)。无论男女，都发现了负同速生长(b<；3)。产卵发生在一年中的大部分时间。首次成熟时的大小(L50=341 mm；雌性和雄性分别为329 mm TL)，高于该区域以前的信息，也高于法律规定的允许捕获的最小尺寸(TL=25 cm)。我们建议将首次成熟时的这一新规模视为最低允许捕捞规模，以帮助保护巴西东南部的这一渔业资源。
Micropogonias furnieri is one of the most important fishery resources in Southeastern Brazil. However, the Brazilian law for exploitation of this resource is incipient. Our main aim was to assess whether reproductive tactics developed by Ubatuba populations are consistent with the available information and to evaluate their suitability to support measures of protection. A total of 359 individuals were examined, with unbalanced sex ration (1 female:1.56 male). Negative alometry (b<3) was found for both sexes. Spawning occurs during most of the year. Size at first maturation (L50 = 341 mm; 329 mm TL; for females and males, respectively), was higher than previous information for the region, and higher than the minimum size of allowed capture established by the law (TL = 25 cm). We recommend consider this new size at first maturity as the minimum allowed capture size as a measure to help protect this fishery resource in Southeastern Brazil.