First Report on Biometric Analysis of Red Cornetfish Fistularia petimba (Fistulariidae) from Indian Waters

IF 0.5 4区生物学 Q4 FISHERIES Journal of Ichthyology Pub Date : 2023-12-29 DOI:10.1134/s0032945224010156

N. K. Suyani, D. T. Vaghela, S. S. Rathore, B. Sureandiran

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Abstract

The morphometric and meristic characteristics, length-length relationships (LLRs), length-weight relationships (LWRs) and relative condition factor of forty-one individuals of red cornetfish Fistularia petimba were studied for the first time from the North-West coast of India during February to September 2022. The maximum coefficient of variation was observed for inter-orbital length (25.85%) followed by lower jaw length (18.14%) and pectoral-fin length (16.96%). The morphometric index value was found <10% (genetically-controlled characters) for all the morphometric characters except total length with caudal filament length indicating restricted distribution. LLRs revealed isometric growth and high values of correlation coefficient (0.6109–0.9992). The b value of LWRs showed significant departure from 3 (p < 0.05) and hence negative allometric growth was recorded. The high R² value of the LWRs indicates absolute fitness of the growth model and superior health status of the studied species. The mean condition factor value was calculated as 0.99 ± 0.04 indicating that the F. petimba population is in good health. Further, F. petimba is a reef-associated species forming a part of low-value bycatch which is mainly utilized for the preparation of fishmeal. Thus the provided morphometric and biometric information of the species will be useful for further biological, stock assessment and nutritional research in the region.

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关于印度水域红箭鱼 Fistularia petimba（箭鱼科）生物计量分析的首份报告

摘要 2022年2月至9月期间，研究人员首次在印度西北海岸对41尾红矢车菊鱼（Fistularia petimba）个体的形态和分部特征、长度关系（LLRs）、长度重量关系（LWRs）和相对条件因子进行了研究。眶间长度的变异系数最大（25.85%），其次是下颌长度（18.14%）和胸鳍长度（16.96%）。除总长度和尾丝长度外，所有形态特征的形态指数值均为 10%（遗传控制特征），表明其分布受到限制。LLRs 显示出等距生长和较高的相关系数值（0.6109-0.9992）。LWRs 的 b 值显著偏离 3 (p < 0.05)，因此出现了负的等距生长。LWRs 的高 R2 值表明该生长模型的绝对适合性和所研究物种的优越健康状况。计算得出的平均条件因子值为 0.99 ± 0.04，表明 F. petimba 种群健康状况良好。此外，F. petimba 是一种与珊瑚礁相关的物种，是低价值副渔获物的一部分，主要用于制作鱼粉。因此，所提供的该物种的形态计量和生物计量信息将有助于该地区进一步开展生物、种群评估和营养研究。

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来源期刊

Journal of Ichthyology Multiple-

CiteScore

1.00

自引率

28.60%

发文量

期刊介绍： Journal of Ichthyology is an international peer-reviewed journal published in collaboration with the Russian Academy of Sciences. It covers original studies in fish taxonomy, evolution, molecular biology, morphology, species diversity, zoological geography, genetics, physiology, ecology, behavior, reproduction, embryology, invasions, and protection. Some problems of applied ichthyology are also covered. The journal welcomes manuscripts from all countries in the English or Russian language.