以巴西Atherinella brasiliensis为工具研究系统发育对相对生长的影响

IF 0.5 4区农林科学 Q4 FISHERIES

Boletim do Instituto de Pesca Pub Date : 2021-09-13 DOI:10.20950/1678-2305/bip.2021.47.e640

Renato Luiz BOT NETO, B. Carvalho, Roberto Schwarz Júnior, H. Spach

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引用次数: 1

摘要

长度-权重关系(LWR)是鱼类学研究的重要工具，它有助于揭示环境对鱼类生长的影响。在本研究中，我们估算了巴西巴西砂螺(Atherinella brasiliensis)在 o Francisco河河口浅水区的LWR，并比较了该物种在巴西海岸不同环境下的生长情况。2017年5月至2018年4月在奥弗朗西斯科河河口浅水区捕获巴西银鱼(A. brasiliensis, n = 3483)，体长2.1 ~ 13.6 cm。物种的长重比用方程y=0.0047x3.0913表示。频率分布表明，该物种在其个体发育的所有阶段都存在于奥弗朗西斯科河河口的浅水地区，并且明显全年繁殖，不断地向种群中输入新成员。对Von Bertalanffy的生长模型和寿命进行调整，使其渐近长度(L∞)为14.7 cm，生长系数(K)为0.91 year-1，寿命(A95)为3.25年。方差分析揭示了最大总长度的差异。然而，本研究与文献中现有数据之间的差异似乎是由环境和方法差异引起的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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INSIGHTS ON THE INFLUENCE OF PHYLOGENETIC ON THE RELATIVE GROWTH USING Atherinella brasiliensis AS A TOOL

The length–weight relationships (LWR) are important tools for ichthyology, they are useful to demonstrate the environmental influence on growth. In this study we estimate the LWR of the Atherinella brasiliensis in the shallow areas of the São Francisco river estuary and compare the growth of this specie in different environments of the Brazilian coast. Specimens of Brazilian silverside (A. brasiliensis, n = 3483), between 2.1 and 13.6 cm in length, were caught in the shallow areas of the São Francisco River estuary between May 2017 and April 2018. The length-weight ratio of the species was represented by the equation y=0.0047x3.0913. Frequency distribution indicates that the species is present in the shallow areas of the São Francisco River estuary in all its ontogenetic stages and apparently reproduces throughout the year with constant input of recruits into the population. Von Bertalanffy’s growth model and longevity were adjusted to reach asymptotic length (L∞) of 14.7 cm, growth coefficient (K) of 0.91 year-1 and longevity (A95) of 3.25 years. The analysis of variance revealed differences for the maximum total length. However, the differences found between the present study and data available in the literature appear to be caused by environmental and methodological differences.

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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.