Meeting Abstract 69.2 Saturday, Jan. 5 Time Travel in the Lab: Exploring Thermal Compensation in Antarctic Fish Parvalbumins MOERLAND, TS*; WHITTINGTON, AC; Kent State Univ., Ohio; Florida State Univ., Tallahassee tmoerlan@kent.edu Antarctic notothenioid fishes display a suite of adaptations to their habitat, including proteins that function optimally in the cold. Studies of enzymes have shown that adaptation […]
year: 2013
Relationships between hemoprotein expression and cardiovascular physiology of Antarctic notothenioids form, function, and future implications
Meeting Abstract 69.6 Saturday, Jan. 5 Relationships between hemoprotein expression and cardiovascular physiology of Antarctic notothenioids: form, function, and future implications. BEERS, J.M.; Stanford University jbeers@stanford.edu Antarctic notothenioid fishes have been exploited by scientists for decades as classic Krogh-style models with which to study cold-adapted physiological traits. Some of the most fascinating discoveries have come from studies […]
Multiplying mitochondria in the cold how do fish do it and why
Meeting Abstract 69.4 Saturday, Jan. 5 Multiplying mitochondria in the cold: how do fish do it and why? O’BRIEN, K.M.; Univ. of Alaska Fairbanks kmobrien@alaska.edu High mitochondrial densities are characteristic of oxidative muscles in cold-bodied fishes. There is a latitudinal trend in mitochondrial abundance, with Antarctic fishes displaying the highest densities. Antarctic icefishes, lacking hemoglobin, lie at […]
Lessons from cold-adapted enzymes Can protein adaptation to temperature be simple and quick
Meeting Abstract 69.1 Saturday, Jan. 5 Lessons from cold-adapted enzymes: Can protein adaptation to temperature be simple and quick? SOMERO, GEORGE; Stanford University somero@stanford.edu Fascination with how proteins manage to work well at near-freezing temperatures has led to detailed study of enzymatic and structural proteins of Antarctic notothenioid fishes. Discovery that lactate dehydrogenase (LDH) orthologs of notothenioids […]
Evolutionary developmental biology of notothenioid fishes through the genomic looking glass
Meeting Abstract 69.3 Saturday, Jan. 5 Evolutionary developmental biology of notothenioid fishes: through the genomic looking glass DETRICH, H.W.*; YAN, Y.L.; TITUS, T.; ALLARD, C.; ALBERTSON, R.C.; POSTLETHWAIT, J.H.; Northeastern Univ., Boston; Univ. of Oregon, Eugene; Univ. of Oregon, Eugene; Northeastern Univ., Boston; Univ. of Massachusetts, Amherst; Univ. of Oregon, Eugene iceman@neu.edu Comparative genomics provides a global […]
Control of branchial artery tone in Antarctic fish
Meeting Abstract 69.5 Saturday, Jan. 5 Control of branchial artery tone in Antarctic fish EGGINTON, S; University of Birmingham, UK s.egginton@bham.ac.uk We examined potential vasomotor control mechanisms in Antarctic fishes, compared with teleosts of different phylogenetic relatedness from both cold and temperate environments. In general, vascular constrictor activity showed a modest α and β adrenergic tonus, but […]
The environmental and physiological factors modulating immunity in an opportunistic breeder
Meeting Abstract 68.1 Saturday, Jan. 5 The environmental and physiological factors modulating immunity in an opportunistic breeder SCHULTZ, EM*; HAHN, TP; Univ. of California, Davis emschultz@ucdavis.edu In order to be optimally suited to the current environment, organisms must choose when and how to allocate limited energy resources to the most essential physiological process. This conflict often results […]
Seasonal modulation of testosterone and stress response in a highly stable environment
Meeting Abstract 68.5 Saturday, Jan. 5 Seasonal modulation of testosterone and stress response in a highly stable environment GONZALEZ-GOMEZ, PL*; MERRILL, L; VENEGAS, C; PANTOJA, J; VASQUEZ, RA; WINGFIELD, JC; Univ. of California Davis; Oklahoma State University; Universidad de Chile; Universidad de Chile; Universidad de Chile; Univ. of California Davis plgonzalezgomez@ucdavis.edu Birds inhabiting seasonal environments typically have […]
Energy expenditure is independent of dive function in a deep diving vertebrate, the northern elephant seal
Meeting Abstract 68.6 Saturday, Jan. 5 Energy expenditure is independent of dive function in a deep diving vertebrate, the northern elephant seal MEIR, J.U.; University of British Columbia meir@zoology.ubc.ca Although energetics are fundamental to animal ecology, traditional methods of assessing metabolic rate are not both direct and instantaneous. Recently, continuous blood oxygen (O2) measurements were used to […]
Corticosterone and brood abandonment in a passerine bird
Meeting Abstract 68.3 Saturday, Jan. 5 Corticosterone and brood abandonment in a passerine bird OUYANG, JQ*; HAU, M; Princeton Univ; Max Planck Institute for Ornithology jqouyang@gmail.com Hormones regulate decision-making strategies, in particular by translating an individual’s physiological state into decisions on major behavioural and life-history processes, such as reproduction. Corticosterone, a glucocorticoid hormone, has been gaining attention […]
