Limited impact of big fish mothers for population replenishment-Reference-Cited by-同舟云学术

Limited impact of big fish mothers for population replenishment

Published:2019-03 Issue:3 Volume:76 Page:347-349
ISSN:0706-652X
Container-title:Canadian Journal of Fisheries and Aquatic Sciences
language:en
Short-container-title:Can. J. Fish. Aquat. Sci.

Author:

Andersen Ken H.¹,Jacobsen Nis Sand²,van Denderen P. Daniël¹

Affiliation:

1. Centre for Ocean Life, DTU Aqua, Technical University of Denmark, Building 202, 2800 Kgs. Lyngby, Denmark.

2. National Research Council Postdoctoral Research Associate, Washington, D.C., USA.

Abstract

A recent meta-analysis by Barneche et al. (2018; Science, 360(6389): 642–645) shows that fish reproductive output scales hypergeometrically with female weight. This result challenges the common assumption that reproductive output is proportional to weight. The implication made is that current theory and practice severely underestimate the importance of larger females for population replenishment. Their example for cod (Gadus morhua) shows that current practice makes an error of 149%. By properly accounting for fish demography, we show that the error is maximally on the order of 10% and in most other fish stocks likely much less.

Publisher

Canadian Science Publishing

Subject

Aquatic Science,Ecology, Evolution, Behavior and Systematics

Link

http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2018-0354

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