Reproductive Biology of the Carp, Cyprinus carpio L., in Lake St. Lawrence, Ontario
- 1 October 1966
- journal article
- research article
- Published by Oxford University Press (OUP) in Transactions of the American Fisheries Society
- Vol. 95 (4) , 372-380
- https://doi.org/10.1577/1548-8659(1966)95[372:rbotcc]2.0.co;2
Abstract
Studies were made during 1964 and 1965 on the reproductive biology of the carp in selected marsh areas of Lake St. Lawrence. Male and female carp matured at ages III and IV, and IV and V, respectively. The sex ratio of males to females was 1.8:1. Spawning occurred from 18 May to 26 June in 1964, from 16 May to 1 August in 1965. Spawning did not occur below 17 C, reached an optimum activity at 19 to 23 C, decreased above 26 C, and ceased at 28 C. Major environmental factors affecting spawning and survival of eggs were water temperature and water level. Spot poisoning of marsh areas in September 1965 revealed a substantial survival of young‐of‐the‐year carp hatched at various times during May, June, and July.This publication has 0 references indexed in Scilit: