Use of otolith microchemical and morphological analyses for stock discrimination of Sarpa salpa on two Tunisian islands, Djerba and Kerkennah

IF 1.1 4区生物学 Q3 MARINE & FRESHWATER BIOLOGY

Journal of the Marine Biological Association of the United Kingdom Pub Date : 2024-03-22 DOI:10.1017/s0025315423000954

Meriam Ben Ghorbel, Marwa Mejri, Houeto Madel Floriane Adjibayo, Abdellah Chalh, Jean-Pierre Quignard, Monia Trabelsi, Nawzet Bouriga

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引用次数: 0

Abstract

Otolith morphological and microchemical analyses are relatively new scientific research methods used in fish stock evaluation and management. However, in Tunisia, only morphological methods have been used. The objective of this study was the Sarpa salpa stock discrimination of Djerba and Kerkennah by the otoliths morphological and microchemical analysis, while carrying out a fluctuating asymmetry analysis and a stock comparison of males and females for each population. The results revealed significant differences between the Djerba and Kerkennah populations, significant differences between the stocks of males and females in each population, and a highly significant fluctuating asymmetry for both populations. The results of the otolith morphological analysis were similar to those of the microchemical analysis. This result proves that both morphological and microchemical analyses are powerful tools for fish stock discrimination.

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利用耳石微化学和形态分析鉴别突尼斯杰尔巴岛和凯尔肯纳岛两座岛屿上的 Sarpa salpa 种群

耳石形态分析和微化学分析是鱼类种群评估和管理中使用的相对较新的科学研究方法。然而，突尼斯只使用了形态学方法。本研究的目的是通过耳石形态学和微化学分析对杰尔巴和克尔肯纳的 Sarpa salpa 种群进行鉴别，同时对每个种群进行波动不对称分析和雌雄种群比较。结果显示，杰尔巴种群和凯尔肯纳种群之间存在显著差异，每个种群的雌雄鱼群之间也存在显著差异，而且两个种群都存在非常显著的波动不对称性。耳石形态分析结果与微化学分析结果相似。这一结果证明，形态分析和微化学分析都是区分鱼类种群的有力工具。

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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来源期刊

Journal of the Marine Biological Association of the United Kingdom 生物-海洋与淡水生物学

CiteScore

2.30

自引率

8.30%

发文量

审稿时长

3-8 weeks

期刊介绍： JMBA is an international journal, publishing original research on all aspects of marine biology. It includes pioneering work taking place today on major issues concerning marine organisms and their environment. Subjects covered include: ecological surveys and population studies of marine communities; physiology and experimental biology; taxonomy, morphology and life history of marine animals and plants; and chemical and physical oceanographic work. Included with 2010 online subscriptions: Marine Biodiversity Records.