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鱼类标记技术研究进展及在人工增殖放流中的应用

2017-05-13周辉霞甘维熊

湖北农业科学 2017年7期

周辉霞+甘维熊

摘要:标记-回捕放流鱼苗是评估增殖放流效果的通用方法,成功标记放流的关键在于标记技术的选择。小规模标记放流时,重点关注标记死亡率、标志保留时间等;而在大规模标记时,则在此基础上需考虑标记的劳动强度、成本等因素。对挂牌、被动整合式雷达标、耳石标及分子标的研究概况及其各自优缺点进行了综述,并介绍了大规模标记技术在国内外人工增殖放流中的应用,为不同背景情况下的放流标记技术的选择提供参考。

关键词:增殖放流;鱼类;标记技术;大规模标记

中图分类号:S931.5;S932.4 文献标识码:A 文章编号:0439-8114(2017)07-1206-05

DOI:10.14088/j.cnki.issn0439-8114.2017.07.002

Advances in Fish Labeling Technology and Its Application

in Artificial Proliferation and Release

ZHOU Hui-xia1,GAN Wei-xiong2

(1.Animal Husbandry Food Stuff Bureau of Shehong County, Sichuan Province, Shehong 629200, Sichuan,China;

2.Yalong River Hydropower Development Company, Ltd., Chengdu 610051, China)

Abstract: Marking-replenishment floating fry is a common method for assessing the effect of proliferation and release. The key to successful marker release is the choice of marker technology. Small-scale markings are focused on marker mortality, marker retention times, and so on. In addition, in the large-scale marking need to consider the marked labor intensity, cost and other factors. This paper summarizes the research and their advantages and disadvantages of listed, passive integrated radar, otolith and molecular standard, and introduces the application of large-scale marking technology in artificial proliferation and release at home and abroad, Which can provide reference for the selection of discharge marking technology under different background conditions.

Key words: proliferation and release; fish; marking technology; mass-marking

魚类人工增殖放流是主动增殖水域鱼类资源的活动,是国内外通用的养护水生生物资源,修护水域生态和促进渔业增效的有效手段[1]。近年来,中国各地政府在不同水域都组织开展了大规模的增殖放流活动,国内大中型水电站也将人工增殖放流作为保护工程河段鱼类的一种重要措施。对放流鱼类进行标记,可跟踪其在野外环境的扩散和存活情况,以及与野外种群的遗传关系和生态关系,可科学评估增殖放流效果,对渔业资源管理具有较强的指导性。本文介绍了当前几种常用的鱼类标记技术,比较各标记技术的优缺点,并对适合人工增殖放流的大规模标记技术进行了综述,旨在为不同背景下的放流标记技术的选择提供参考。

1 常用鱼类标记技术

1.1 挂牌标记

挂牌标志是将写有标志鱼信息的挂牌用专门材料(不锈钢丝、聚酯纤维等)固定在鱼体上,依据固着方式不同,可分为3类:穿体标、箭形标和内锚标,前2类标常常固着在鱼体背部肌肉,后者则固着在鱼体腹部[2]。……

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