Limited impact of big fish mothers for population replenishment

被引：9

作者：

Andersen, Ken H. ^{[1
]}

Jacobsen, Nis Sand ^{[2
]}

van denderen, P. Daniel ^{[1
]}

机构：

[1] Tech Univ Denmark, DTU Aqua, Ctr Ocean Life, Bldg 202, DK-2800 Lyngby, Denmark

[2] CNR, Washington, DC 20418 USA

来源：

CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES | 2019年 / 76卷 / 03期

关键词：

SIZE; AGE; VIABILITY; EGGS; MANAGEMENT;

D O I：

10.1139/cjfas-2018-0354

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

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.

引用

页码：347 / 349

页数：3

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