Scale analysis suggests frequent skipping of the second reproductive season in Atlantic herring

Engelhard, G.H. and Heino, M. (2005) Scale analysis suggests frequent skipping of the second reproductive season in Atlantic herring. Biology Letters, 1 (2). pp. 172-175. ISSN 1744-9561

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Abstract

A common assumption in fish studies is that iteroparous fishes, once mature, normally reproduce in all consecutive seasons. An analysis of scales from Norwegian spring-spawning herring collected between 1935 and 1973 revealed a strong under-representation (47% of expected) of second-time spawners on the spawning grounds. This reduction is not satisfactorily explained by errors in scale-reading, suggesting that the second reproductive season is frequently skipped. Skipping a season may relate to trade-offs between growth, current and future reproduction, and survival, which are likely to be particularly strong for young adult herring.

Item Type: Article
Faculty \ School: Faculty of Science > School of Environmental Sciences
Related URLs:
Depositing User: Pure Connector
Date Deposited: 12 Nov 2014 16:56
Last Modified: 21 Apr 2020 23:34
URI: https://ueaeprints.uea.ac.uk/id/eprint/50798
DOI: 10.1098/rsbl.2004.0290

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