Standardized intermittent shoreline boat electrofishing for slow-flowing rivers in Sweden

IF 1.6 Q2 MULTIDISCIPLINARY SCIENCES

MethodsX Pub Date : 2024-08-13 DOI:10.1016/j.mex.2024.102907

Joacim Näslund, Thomas A.B. Staveley, Erik Petersson

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Abstract

Electrofishing is a common method for sampling fish in rivers. In Sweden, electrofishing has a long history, dating back to the 1950s, but the vast majority of surveys have been conducted by wading in shallow river stretches, leaving a data gap for non-wadable rivers. Boat electrofishing allows for surveys in deeper river sections, but limited numbers of operational electrofishing boats have led to standardisation of methods not being prioritized within Swedish water management. This method protocol describes the first Swedish standardised method for boat electrofishing, based on intermittent shoreline sampling in larger slow-flowing rivers. The paper describes:

•
General methodology for boat electrofishing operation
•
Data collection protocols
•
Discussion of current caveats for the method

In the future, the methodology will be amended to cover a wider array of river types (e.g. faster flowing river sections). Hence, readers are advised to look for updates to the protocol.

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瑞典慢流河流的标准化间歇性海岸线船电鱼法

电鱼是一种常见的河流鱼类取样方法。在瑞典，电鱼的历史可以追溯到 20 世纪 50 年代，但绝大多数调查都是在浅水河段涉水进行的，因此无法涉水的河流存在数据空白。电鱼船可以在较深的河段进行调查，但由于可操作的电鱼船数量有限，导致瑞典水管理部门没有优先考虑方法的标准化。本方法规程介绍了瑞典首个标准化的船载电鱼方法，该方法基于在较大的缓流河流中进行间歇性海岸线取样。本文介绍了： - 船用电鱼操作的一般方法 - 数据收集规程 - 讨论该方法当前的注意事项。未来，该方法将进行修订，以涵盖更广泛的河流类型（如流速较快的河段）。因此，建议读者关注协议的更新。

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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