title: Upper thermal limits of the hearts of Arctic cod Boreogadus saida: adults compared with larvae.
abstract: 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.
authors.affiliation: Zoology Department, University of British Columbia, 6270 University Boulevard, Vancouver, BC, V6T 1Z4, Canada.
authors.forename: H E
authors.initials: HE
authors.lastname: Drost
authors.affiliation: Vancouver Aquarium, 845 Avison Way, Vancouver, BC, V6G 3E2, Canada.
authors.forename: J
authors.initials: J
authors.lastname: Fisher
authors.affiliation: #604, 2020 Highbury Street, Vancouver, BC, V6R 4N9, Canada.
authors.forename: F
authors.initials: F
authors.lastname: Randall
authors.affiliation: Vancouver Aquarium, 845 Avison Way, Vancouver, BC, V6G 3E2, Canada.
authors.forename: D
authors.initials: D
authors.lastname: Kent
authors.affiliation: Institute of Ocean Sciences, Fisheries and Oceans Canada, 9860 West Saanich Road, Sidney, BC, V8L 4B2, Canada.
authors.forename: E C
authors.initials: EC
authors.lastname: Carmack
authors.affiliation: Zoology Department, University of British Columbia, 6270 University Boulevard, Vancouver, BC, V6T 1Z4, Canada.|Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada.
authors.forename: A P
authors.initials: AP
authors.lastname: Farrell
mesh_terms: D000064:Acclimatization; D000818:Animals; D001110:Arctic Regions; D048388:Gadiformes / Q000502:physiology*; D006321:Heart / Q000502:physiology*; D006339:Heart Rate; D007814:Larva / Q000502:physiology; D013696:Temperature
keywords: climate change; food web; heart rate; transition temperatures: TAB, TQB, Tmax, TAR