Maximum Girth, Opercular Girth and Total Length Relationships of Blotched Picarel (Spicara maena (Linnaeus, 1758)), Picarel (Spicara smaris (Linnaeus, 1758)) and Mediterranean Rainbow Wrasse (Coris julis (Linnaeus, 1758)) in the North Aegean Sea

Thalassas: An International Journal of Marine Sciences Pub Date : 2024-01-30 DOI:10.1007/s41208-023-00653-3

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Abstract

The paper mentioned was applied using the fish samples obtained by commercial fishermen using gillnets through the stationary set and drive in fishing methods in order to search out length-girth relationships (LGRs) of blotched picarel (Spicara maena (Linnaeus, 1758)), picarel (Spicara smaris (Linnaeus, 1758)) and mediterranean rainbow wrasse (Coris julis (Linnaeus, 1758)) between January 2021 and December 2021 in the Saros Bay (northern Aegean Sea, Türkiye). The opercular girth-length relationships were calculated as G_ope = 0.7176TL – 3.4105 (r² = 0.89), G_ope = 0.5579TL – 2.4407 (r² = 0.89) and G_ope = 0.9118TL – 7.3585 (r² = 0.93), whilst the maximum girth-length relationships were estimated as G_max = 0.9124TL – 4.7124 (r² = 0.82), G_max = 0.5874TL – 1.2491 (r² = 0.80) and G_max = 1.0227TL – 8.6218 (r² = 0.95) for Spicara maena, Spicara smaris and Coris julis, respectively. All linear regressions of this research were statistically notable (p < 0.001). The existing research involves the first findings of LGRs of Spicara smaris for the North Aegean Sea, whilst any LGRs values of Coris julis have in days of yore been not reported worldwide, but the paper mentioned. Since the relevant valuates are remarkable for development the selectivity of fishing equipments in order to forestall the seize of immature, undersized, younger fish, it will bolster the advancement of the ecosystem-based fisheries management.

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北爱琴海斑点琵鲷（Spicara maena (Linnaeus, 1758)）、琵鲷（Spicara smaris (Linnaeus, 1758)）和地中海虹鳟（Coris julis (Linnaeus, 1758)）的最大周长、厣周长和总长关系

摘要本文利用商业渔民通过定置刺网和驱赶捕捞方式获得的鱼类样本，研究了1758年至2011年期间斑点濑鱼（Spicara maena (Linnaeus. 1758)）、濑鱼（Spicara smaris (Linnaeus, 1758)）和地中海虹鳟（Coris julis (Linnaeus, 1758)）的体长-体重关系（LGRs）、1758 年））、皮卡鱼（Spicara smaris (Linnaeus, 1758 年)）和地中海彩虹濑鱼（Coris julis (Linnaeus, 1758 年)）。计算得出的厣周长关系为 Gope = 0.7176TL - 3.4105 (r2 = 0.89)、Gope = 0.5579TL - 2.4407 (r2 = 0.89) 和 Gope = 0.9118TL - 7.3585 (r2 = 0.93)。93），而 Spicara maena、Spicara smaris 和 Coris julis 的最大周长关系估计值分别为 Gmax = 0.9124TL - 4.7124（r2 = 0.82）、Gmax = 0.5874TL - 1.2491（r2 = 0.80）和 Gmax = 1.0227TL - 8.6218（r2 = 0.95）。本研究的所有线性回归均具有显著的统计学意义（p < 0.001）。现有研究首次发现了北爱琴海 Spicara smaris 的线性回归系数，而本文提到的 Coris julis 的任何线性回归系数值在过去都没有在全球范围内报道过。由于相关数值对于提高捕捞设备的选择性以防止捕获未成熟、体型过小、年龄较小的鱼类具有重要意义，因此它将促进基于生态系统的渔业管理的发展。

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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Thalassas: An International Journal of Marine Sciences

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