Inherited differences in agonistic behavior between two populations of coho salmon

摘要: Abstract Agonistic behaviors of juvenile coho salmon Oncorhynchus kisutch were compared between populations in Nathan Creek and Hope Slough, two tributaries the lower Fraser River, British Columbia. Wild fish tested individually isolated aquaria for differences duration lateral display. Slough juveniles displayed more than did juveniles. In consecutive years, laboratory-reared from these similar. stream tanks, where total repertoire agonistic behavior by was compared, aggressive fish. When size-matched pairs (one each population) placed aquaria, became dominant. These data suggest a genetic basis observed behavioral fish, further that also are characteristic wild populations. The existence o...