A FIELD EXPERIMENT ON THE EFFECTS OF INTERSPECIFIC COMPETITION FROM ROACH, RUTILUS-RUTILUS (L), ON AGE AT MATURITY AND GONAD SIZE IN PERCH, PERCA-FLUVIATILIS L

被引：18

作者：

PERSSON, L

机构：

[1] Department of Animal Ecology, University of Umeå, Umeå

来源：

JOURNAL OF FISH BIOLOGY | 1990年 / 37卷 / 06期

关键词：

competition; field experiment; gonad weight; maturity; Perca fluviatilis; perch;

D O I：

10.1111/j.1095-8649.1990.tb03593.x

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

The effects of interspecific competition from roach on gonad development in O+ and 1+ perch were studied in a pond experiment by varying the roach density between treatments. The proportion of mature O+ males first increased and, thereafter, decreased with increasing roach density and increasing somatic weight. O f females were immature and all I+ males were mature. The proportion of mature 1+ females decreased with increasing roach density and decreasing somatic weight. The gonad weight of O+ and 1+ males as well as 1+ females decreased with increasing roach density and decreasing somatic weight. For 1+ males, which were individually marked, both start weight as well as somatic end weight were positively related to gonad weight. One possibleexplanation for the hump shaped relationship between the proportion of mature O+ males and somatic weight is that behavioural interactions between O+ and I+ males in the absence of roach affected maturing in O+ males. This study supports previous suggestions that annual variation in resource availability may give rise to variance in fecundity‐body size relationships. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：899 / 906

页数：8

共 26 条

[1]

Backiel T., LeCren E.D., Some density relationships for fish population parameters, Ecology of Freshwater Fish Production, pp. 279-302, (1978)

[2]

Bagenal T.B., The relationship between food supply and fecundity in brown trout, Salmo trutta L, Journal of Fish Biology, 1, pp. 167-182, (1969)

[3]

Bagenal T.B., Aspects offish fecundity, Ecology of Freshwater Fish Production, pp. 75-101, (1978)

[4]

Craig J., The Biology of Perch and Related Species, (1987)

[5]

Galkin A.S., Kovavel S.M., Fecundity of the capelin, Mallotus villosus villosus, of the Barent Sea, Journal of Ichthyology, 15, pp. 579-583, (1975)

[6]

Hanson J.M., Leggett W.C., Experimental and field evidence for inter‐ and intraspecific competition in two freshwater fishes, Canadian Journal of Fisheries andAquatic Sciences, 42, pp. 280-286, (1985)

[7]

Hay D.E., Brett J.R., Maturation and fecundity of Pacific herring (Clupea harengus pallasi:) an experimental study with comparisons to natural populations, Canadian Journal of Fisheries and Aquatic Sciences, 45, pp. 399-406, (1988)

[8]

Hay D.E., Brett J.R., Bilinski E., Smith D.T., Donaldson E.M., Hunter G.A., Solmie A.V., Experimental empoundments of prespawning Pacific herring (Clupea harengus pallasi:) effects of feeding and density on maturation, growth, and proximate analysis, Canadian Journal of Fisheries and Aquatic Sciences, 45, pp. 388-398, (1988)

[9]

Healey M.C., Heard W.R., Inter‐ and intra‐population variation in the fecundity of Chinnook salmon (Oncorhynchus tshawytscha) and its relevance to life history theory, Canadian Journal of Fisheries and Aquatic Sciences, 41, pp. 476-483, (1984)

[10]

Holdway D.A., Beamish F.W.H., The effect of growth rate, size, and season on oocyte development and maturity of Atlantic cod (Gadus morhua L.), Journal of Experimental Marine Biology and Ecology, 85, pp. 3-19, (1985)

← 1 2 3 →