POPULATION-GENETIC STUDY OF THE EFFECTS OF SELECTIVE FISHING ON THE GROWTH-RATE OF TROUT

被引：33

作者：

FAVRO, LD

KUO, PK

MCDONALD, JF

机构：

[1] WAYNE STATE UNIV, DEPT PHYS, DETROIT, MI 48202 USA

[2] UNIV WINDSOR, DEPT MATH, WINDSOR N9B 3P4, ONTARIO, CANADA

来源：

JOURNAL OF THE FISHERIES RESEARCH BOARD OF CANADA | 1979年 / 36卷 / 05期

关键词：

D O I：

10.1139/f79-079

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

A mathematical model that simulates the effect of selective fishing on the size distributions of populations of trout is presented. The model assumes that the growth rate is genetically controlled by a small number of major genes. Empirical numbers for the growth and mortality rates of brown trout (Salmo trutta) in the Au Sable River of Michigan [USA] are used as input data. A computer is used to calculate the changes in the population subject to various degrees of fishing pressure for various size limits. Results are presented for periods of time ranging from 5-30 yr. The observed changes in the population over the period 1959-1977 in a test stretch of the Au Sable River agree quite well with the computations.

引用

页码：552 / 561

页数：10

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