Morphometric variation of Spicara flexuosum Rafinesque, 1810 (Teleostei: Sparidae) inhabiting the Sea of Marmara, the Aegean and the Mediterranean Coast of Türkiye

IF 0.9 4区环境科学与生态学 Q4 OCEANOGRAPHY

Oceanological and Hydrobiological Studies Pub Date : 2023-03-01 DOI:10.26881/oahs-2023.1.03

Aslı Şalcıoğlu

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引用次数: 0

Abstract

Abstract In the present study, intraspecific morphometric distribution of Spicara flexuosum was investigated along the five locations on the Turkish coast based on eight morphological characters. A total of 116 samples were obtained along the Turkish coasts (Istanbul, Yalova [Armutlu], Izmir, Mersin and Antalya) by using trawlers and the handline fishing method within the period in 2014–2015. Principal component analysis and the dendrogram-based Euclidean distance method were used to evaluate different morphometric traits among five locations. The most important ratios of the morphometric loading characters were the head length to interorbital distance, head length to eye diameter, maximum body height two to head height, and head height to head length. The classification matrix based on the discriminant function analysis showed that 94.7% of original grouped were correctly classified. Principal component and cluster analysis showed the existence of two morphologically differentiated groups of S. flexuosum. First one composed of Istanbul and Yalova and the second one consisted of Izmir, Mersin and Antalya. This study is the first description of the intraspecific distribution of morphometric characters for S. flexuosum along the Turkish coast as well as the Mediterranean region for fisheries management purposes.

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1810年生活在马尔马拉海、爱琴海和土耳其地中海沿岸的Spicara flexuosum Rafinesque的形态变异(Teleostei: Sparidae)

摘要在本研究中，根据八个形态特征，研究了弯曲Spicara flexuosum在土耳其海岸五个地点的种内形态计量分布。2014-2015年期间，通过使用拖网渔船和手工捕鱼方法，在土耳其海岸（伊斯坦布尔、雅洛瓦[Armutlu]、伊兹密尔、梅尔辛和安塔利亚）共获得了116个样本。采用主成分分析和基于树状图的欧氏距离法对五个地点的不同形态特征进行了评价。形态负荷特征最重要的比率是头部长度与眶间距离、头部长度与眼睛直径、最大身高2与头部高度以及头部高度与头部长度。基于判别函数分析的分类矩阵表明，94.7%的原始分组被正确分类。主成分分析和聚类分析表明弯曲假丝酵母存在两个形态分化群。第一个由伊斯坦布尔和雅洛瓦组成，第二个由伊兹密尔、梅尔辛和安塔利亚组成。这项研究首次描述了弯曲弯藻在土耳其海岸和地中海地区的形态计量特征的种内分布，用于渔业管理。

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

Oceanological and Hydrobiological Studies 地学-海洋学

CiteScore

1.70

自引率

11.10%

发文量

审稿时长

>12 weeks

期刊介绍： Oceanological and Hydrobiological Studies is an international journal published by the Institute of Oceanography, University of Gdańsk in Poland. The journal has 4 issues per year and contains papers on all aspects of the marine environment and hydrobiology. All manuscripts are reviewed by editors and independent experts. Based on the referees'' recommendations, the Editor will make a decision on whether to accept a contribution. All articles are published in English. The journal is open to all matters concerning the water environment, thus providing the readers with a wide spectrum of topics in every issue.