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Engelhard, G.H. & Heino, M. 
ORCID: https://orcid.org/0000-0003-2928-3940
(2005).
Scale Analysis Suggests Frequent Skipping of Second Reproductive Season in Atlantic Herring.
IIASA Interim Report.
IIASA, Laxenburg, Austria: IR-05-075
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Abstract
A common assumption in fish studies is that iteroparous fish, once mature, normally reproduce in all consecutive seasons. Analysis of scales from Norwegian spring-spawning herring collected between 1935-1973 revealed strong under-representation (47% of expected) of second-time spawners on the spawning grounds. This reduction is not explained satisfactorily by possible 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: | Monograph (IIASA Interim Report) |
|---|---|
| Uncontrolled Keywords: | Clupea harengus; Current and future reproduction; Fishery management; Life-history trade-off; Migration cost; Survival |
| Research Programs: | Adaptive Dynamics Network (ADN) |
| Depositing User: | IIASA Import |
| Date Deposited: | 15 Jan 2016 02:18 |
| Last Modified: | 27 Aug 2021 17:19 |
| URI: | https://pure.iiasa.ac.at/7767 |
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