Measuring maximum heart rate to study cardiac thermal performance and heat tolerance in fishes

MJH Gilbert, EA Hardison, AP Farrell… - Journal of …, 2024 - journals.biologists.com
The thermal sensitivity of heart rate (f H) in fishes has fascinated comparative physiologists
for well over a century. We now know that elevating f H is the primary mechanism through …

respR—An R package for the manipulation and analysis of respirometry data

J Harianto, N Carey, M Byrne - Methods in Ecology and …, 2019 - Wiley Online Library
Respirometry is a ubiquitous practice in experimental biology, but there is a lack of standard
practices when analysing the resulting data, limiting transparency and reproducibility. As …

The upper temperature and hypoxia limits of Atlantic salmon (Salmo salar) depend greatly on the method utilized

RM Sandrelli, AK Gamperl - Journal of Experimental Biology, 2023 - journals.biologists.com
In this study, Atlantic salmon were:(i) implanted with heart rate (f H) data storage tags
(DSTs), pharmacologically stimulated to maximum f H, and warmed at 10 C h− 1 (ie tested …

The thermal limits of cardiorespiratory performance in anadromous Arctic char (Salvelinus alpinus): a field-based investigation using a remote mobile laboratory

MJH Gilbert, LN Harris, BK Malley… - Conservation …, 2020 - academic.oup.com
Despite immense concern over amplified warming in the Arctic, physiological research to
address related conservation issues for valuable cold-adapted fish, such as the Arctic char …

Diet mediates thermal performance traits: implications for marine ectotherms

EA Hardison, K Kraskura, J Van Wert… - Journal of …, 2021 - journals.biologists.com
Thermal acclimation is a key process enabling ectotherms to cope with temperature change.
To undergo a successful acclimation response, ectotherms require energy and nutritional …

Temperature and the vertical movements of oceanic whitetip sharks, Carcharhinus longimanus

S Andrzejaczek, AC Gleiss, LKB Jordan… - Scientific reports, 2018 - nature.com
Large-bodied pelagic ectotherms such as sharks need to maintain internal temperatures
within a favourable range in order to maximise performance and be cost-efficient foragers …

Depth and temperature preference of anadromous Arctic char Salvelinus alpinus in the Kitikmeot Sea, a shallow and low-salinity area of the Canadian Arctic

LN Harris, DJ Yurkowski, MJH Gilbert… - Marine Ecology …, 2020 - int-res.com
The Arctic climate is changing rapidly, yet predicting how aquatic species will respond to
these changes remains challenging given the lack of empirical data for most high-latitude …

Effect of thermal variation on the cardiac thermal limits of a eurythermal marine teleost (Girella nigricans)

GD Schwieterman, EA Hardison, EJ Eliason - Current Research in …, 2022 - Elsevier
Although most animals live in complex, thermally variable environments, the impact of this
variability on specific physiological systems is still unresolved. The ectotherm heart is known …

Mechanisms of cardiac collapse at high temperature in a marine teleost (Girella nigrians)

GD Schwieterman, EA Hardison, GK Cox… - … and Physiology Part A …, 2023 - Elsevier
Heat-induced mortality in ectotherms may be attributed to impaired cardiac performance,
specifically a collapse in maximum heart rate (f Hmax), although the physiological …

Distinct freshwater migratory pathways in Arctic char (Salvelinus alpinus) coincide with separate patterns of marine spatial habitat-use across a large coastal …

J Hollins, H Pettitt-Wade, CP Gallagher… - Canadian Journal of …, 2022 - cdnsciencepub.com
Understanding variability in distributions and habitat-use among populations of anadromous
salmonids is essential for their sustainable management. Arctic char (Salvelinus alpinus) is …