基于耳石和鱼体形态的东海海域两种方头鱼判别

doi:10.13287/j.1001-9332.202302.031

应用生态学报 ›› 2023, Vol. 34 ›› Issue (2): 527-534.doi: 10.13287/j.1001-9332.202302.031

基于耳石和鱼体形态的东海海域两种方头鱼判别

玄文丹^1,2, 谢玉^1,2, 朱凯², 朱文斌^2*, 李鹏飞², 赵艺翔^1,2

¹浙江海洋大学海洋与渔业研究所, 浙江舟山 316021;
²浙江省海洋水产研究所/农村农业部重点渔场渔业资源科学观测实验站/浙江省海洋渔业资源可持续利用技术研究重点实验室, 浙江舟山 316021

收稿日期:2022-03-21 接受日期:2022-11-14 出版日期:2023-02-15 发布日期:2023-08-15
通讯作者: *E-mail: foolse@126.com
作者简介:玄文丹, 女, 1996年生, 硕士研究生。主要从事渔业资源养护与利用研究。E-mail: 932497405@qq.com
基金资助:
国家重点研发计划项目(2019YFD0901505)、浙江省重点研发计划项目(2018C02026)和浙江省重点研发计划项目(2019C02056)

Discriminant analysis of two Branchiostegus species in the East China Sea based on otoliths and shape morphology

XUAN Wendan^1,2, XIE Yu^1,2, ZHU Kai², ZHU Wenbin^2*, LI Pengfei², ZHAO Yixiang^1,2

¹Marine and Fishery Institute of Zhejiang Ocean University, Zhoushan 316021, Zhejiang, China;
²Zhejiang Marine Fisheries Research Institute/Scientific Observing and Experimental Station of Fishery Resources for Key Fishing Grounds, Ministry of Agriculture and Rural Affairs/Key Laboratory of Sustainable Utilization of Technology Research for Fishery Resources of Zhejiang Province, Zhoushan 316021, Zhejiang, China

Received:2022-03-21 Accepted:2022-11-14 Online:2023-02-15 Published:2023-08-15

摘要/Abstract

摘要： 种类判别是渔业资源评估的基础,为了有效区分东海海域日本方头鱼和白方头鱼,根据2021年8—10月在27°30′—30°00′ N、123°00′—126°30′ E海域获取的399尾方头鱼样品(日本方头鱼187尾、白方头鱼212尾),利用框架测量法测得耳石形态的28个可量性状和鱼体形态的55个可量性状,并对其进行差异性分析和逐步判别分析。差异性分析结果显示,两种方头鱼的耳石形态在前端、后端、腹侧和背侧存在差异,鱼体形态在鱼的头部、躯干部和尾部存在差异;逐步判别分析结果显示,基于耳石和鱼体形态参数的判别正确率分别为85.1%和94.0%,而基于两种形态参数的综合判别正确率达到98.0%。研究表明,利用耳石或鱼体形态特征均可对两种方头鱼进行有效判别,且结合多种形态特征参数进行判别将进一步提升判别的准确性。

关键词: 日本方头鱼, 白方头鱼, 框架测量法, 逐步判别分析

Abstract: Population discrimination is the basis of fishery stock assessment. To effectively distinguish Branchiostegus japonicus and Branchiostegus albus in the East China Sea, we measured 28 morphometric characteristics of otolith and 55 morphometric characteristics of shape for 399 Branchiostegus samples (187 B. japonicus and 212 B. albus)collected by deep water drift net in 27°30′-30°00′ N and 123°00′-126°30′ E from August to October 2021. The data were then analyzed by the variance analysis and stepwise discriminant analysis (SDA). The otolith of the two Branchiostegus species was different in the anterior, posterior, ventral and dorsal sides, while the shape morpholo-gical differences were observed in the head, trunk and caudal areas. The SDA results showed that the discriminant accuracy based on otoliths and shape morphological parameters was 85.1% and 94.0%, respectively. The comprehensive discriminant accuracy was 98.0% based on those two morphological parameters. Our results suggest that otolith or shape morphology could effectively distinguish the two species of Branchiostegus, and that incorporating various morphological parameters could further increase the discrimination accuracy.

Key words: Branchiostegus japonicus, Branchiostegus albus, truss network, stepwise discriminant analysis (SDA)

玄文丹, 谢玉, 朱凯, 朱文斌, 李鹏飞, 赵艺翔. 基于耳石和鱼体形态的东海海域两种方头鱼判别[J]. 应用生态学报, 2023, 34(2): 527-534.

XUAN Wendan, XIE Yu, ZHU Kai, ZHU Wenbin, LI Pengfei, ZHAO Yixiang. Discriminant analysis of two Branchiostegus species in the East China Sea based on otoliths and shape morphology[J]. Chinese Journal of Applied Ecology, 2023, 34(2): 527-534.

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基于耳石和鱼体形态的东海海域两种方头鱼判别

Discriminant analysis of two Branchiostegus species in the East China Sea based on otoliths and shape morphology

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