Eutrophication as a driver of r-selection traits in a freshwater fish

Sammanfattning

This study tested whether eutrophication could influence life-history traits of a cyprinid, Chanodichthys erythropterus, in 10 Chinese lakes. Using the von Bertalanffy growth model, the asymptotic length (L-infinity) and the growth performance index (I-GRO) were significantly affected by eutrophication. The gonado-somatic index (I-G) and relative fecundity (F-R) were significantly lower in mesotrophic lakes than in eutrophic and hypertrophic lakes. These results indicate that increasing eutrophication affects the life-history tactics of a freshwater fish. (C) 2014 The Fisheries Society of the British Isles

Nyckelord

growth; overfishing; reproduction; trade-off; water quality

Publicerad i

Journal of Fish Biology
2014, Volym: 85, nummer: 2, sidor: 343-354

UKÄ forskningsämne

Ekologi


Publikationens identifierare

DOI: https://doi.org/10.1111/jfb.12426

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/85839