Length-Weight Relationship of 20 Cryptobenthic Fish in Coral and Rocky Reefs in the Gulf of California, Mexico

IF 0.7 4区农林科学 Q4 FISHERIES

Journal of Applied Ichthyology Pub Date : 2023-01-10 DOI:10.1155/2023/1122004

M. S. Irigoyen-Arredondo, X. Moreno-Sánchez, Emigdio Marín-Enríquez, Jose Manuel Ayala-Galaz, D. Ortiz-Oyola, F. Valenzuela-Quiñonez, D. Olivier

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引用次数: 1

Abstract

We present the length-weight relationships (LWRs) in 20 cryptobenthic reef fish species in the Gulf of California (Mexico). Nine of these species had no LWR records yet. However, the other species had LWRs based on in-formalin specimens collected more than 20 years ago. This conservation method has likely affected LWRs parameters. Our study showed higher estimations of the parameter a obtained on fresh specimens than in-formalin individuals. On the other hand, parameter b was not affected. Therefore, the biomass estimates using previous LWRs were strongly underestimated. Ergo, the similitude in parameter b between the two conservation methods highlights that the shape of the LWRs is conserved and did not change over the last 20 years. Finally, we compared the LWRs of shared species in the region’s two main types of shallow reefs, i.e., coral and rocky reefs. We found that the body fitness was not affected by reefs type, which means that both habitats seem to offer similar living conditions for shared species.

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墨西哥加利福尼亚湾珊瑚礁和岩礁20种隐海底鱼类的长重关系

我们介绍了加利福尼亚湾（墨西哥）20种隐海底暗礁鱼类的长重关系。其中9个物种还没有LWR记录。然而，其他物种的LWR是基于20多年前收集的福尔马林标本。这种保护方法可能会影响LWR参数。我们的研究表明，在新鲜标本上获得的参数a的估计值高于福尔马林个体。另一方面，参数b没有受到影响。因此，使用以往LWR的生物量估计被严重低估。埃尔戈，两种守恒方法之间参数b的相似性突出表明，LWR的形状是守恒的，在过去20年中没有变化。最后，我们比较了该地区两种主要类型的浅层珊瑚礁（即珊瑚礁和岩礁）中共享物种的LWR。我们发现，珊瑚礁类型不影响身体健康，这意味着这两个栖息地似乎为共享物种提供了相似的生活条件。

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 Applied Ichthyology 生物-海洋与淡水生物学

CiteScore

2.30

自引率

11.10%

发文量

审稿时长

3-8 weeks

期刊介绍： The Journal of Applied Ichthyology publishes articles of international repute on ichthyology, aquaculture, and marine fisheries; ichthyopathology and ichthyoimmunology; environmental toxicology using fishes as test organisms; basic research on fishery management; and aspects of integrated coastal zone management in relation to fisheries and aquaculture. Emphasis is placed on the application of scientific research findings, while special consideration is given to ichthyological problems occurring in developing countries. Article formats include original articles, review articles, short communications and technical reports.