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Egg viability decreases rapidly with time since ovulation in the rainbow darter Etheostoma caeruleum : implications for the costs of choosiness
Author(s) -
Moran R. L.,
Soukup R. M.,
Zhou M.,
Fuller R. C.
Publication year - 2018
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 - 10.1111/jfb.13523
Subject(s) - etheostoma , biology , mating , zoology , ovulation , fish <actinopterygii> , endocrinology , andrology , fishery , medicine , hormone
Egg viability in the rainbow darter Etheostoma caeruleum , a fish apparently lacking female mate choice, was found to decline rapidly after ovulation. It was observed that the majority of a female's clutch may fail to hatch if she is prevented from mating for as little as 6 h. These data suggest that exercising female mate preferences may be selectively disfavoured in E. caeruleum due to the high cost of delaying mating.