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Behavioural responses of female lake trout Salvelinus namaycush to male chemical stimuli and prostaglandin F 2α
Author(s) -
Buchinger Tyler J.,
Li Weiming,
Johnson Nicholas S.
Publication year - 2020
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.14446
Subject(s) - salvelinus , trout , biology , zoology , prostaglandin , lamprey , olfaction , fontinalis , ecology , fishery , fish <actinopterygii> , endocrinology
Male olfactory cues may guide aggregation on spawning reefs, mate evaluation and synchronized gamete release in lake trout Salvelinus namaycush , but a lack of information on the source and identity of the cues precludes direct tests of their function. Using a two‐channel flume, we found ovulated female lake trout increased time spent in the channel treated with spermiated male‐conditioned water, urine and bile but not synthesized prostaglandin F 2α . We suggest future efforts to characterize male olfactory cues focus on urine and postulate that bile acids contribute to its behavioural activity.