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Reproductive ecology of the nine‐spined stickleback from south‐central Alaska
Author(s) -
Heins D. C.,
Johnson J. M.,
Baker J. A.
Publication year - 2003
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1046/j.1095-8649.2003.00232.x
Subject(s) - stickleback , biology , avian clutch size , zoology , ecology , reproductive cycle , nest (protein structural motif) , reproduction , fishery , fish <actinopterygii> , biochemistry
The life cycle of the nine‐spined stickleback Pungitius pungitius from Airolo Lake, Alaska, was studied using samples taken during 1993–1994 and 1997–1998. Pungitius pungitius was actively reproducing in late May and ceased reproductive activities by late June. Spawning adults were 2+ years old. Contrary to an earlier report, the data indicate that an individual female oviposits all of her ovulated eggs ( i.e. an entire clutch) into a male's nest during one spawning episode. There was a trade‐off between clutch size and egg size without concomitant variation in clutch mass between two years. The results are compared to those from other studies.