Premium
Upper thermal limits of the hearts of Arctic cod Boreogadus saida : adults compared with larvae
Author(s) -
Drost H. E.,
Fisher J.,
Randall F.,
Kent D.,
Carmack E. C.,
Farrell A. P.
Publication year - 2016
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.12807
Subject(s) - biology , larva , arctic , fishery , the arctic , global warming , acclimatization , range (aeronautics) , adaptation (eye) , zoology , climate change , ecology , oceanography , materials science , composite material , geology , neuroscience
Wild adult and reared larval Boreogadus saida were acclimated to 3·5° C before testing their cardiac response to acute warming. Heart rate transition temperatures during warming were similar for adult and larval hearts, except that the maximum temperature for heart rate was 3° C warmer for adults. Thus, in a rapidly warming Arctic Ocean, the upper temperature limit for larval rather than adult B. saida appears more likely to dictate the southern range of the species.