Eat more, often: The capacity of piscivores to meet increased energy demands in warming oceans

The Science of The Total Environment, Год журнала: 2025, Номер 973, С. 179105 - 179105

Опубликована: Март 18, 2025

Язык: Английский

Consistent seasonal flexibility of the gut and its regions across wild populations of a winter-quiescent fish

Royal Society Open Science, Год журнала: 2024, Номер 11(3)

Опубликована: Март 1, 2024

Seasonality in north-temperate environments imposes drastic temperature and resource variations that shape the seasonal ecophysiology of resident organisms. A better understanding an organism’s capacity to flexibly respond this variation may reveal important mechanisms for tolerating or responding environmental introduced by global change. In fishes, digestive system is both interface between energy acquisition one most expensive organ systems maintain. However, little evidence describing flexibility tract wild northern fishes exists. Here, we investigated phenotypic size gastrointestinal (GI) across three populations a winter-dormant warm-water fish, pumpkinseed sunfish ( Lepomis gibbosus ). all populations, exhibited pronounced structural GI tract, aligned with winter timing reproduction. The dry mass increased 1.3- nearly 2.5-fold early spring. pyloric caeca demonstrated greatest flexibility, increasing up 3.7-fold prior minimum was consistently achieved during mid-summer. This gut represent novel mechanism facilitating rapid adaptive responses (e.g. metabolic plasticity) future

Язык: Английский

Expanding the scope: integrating costs of digestive metabolism and growth into estimates of maximum oxygen uptake in fishes

Journal of Experimental Biology, Год журнала: 2024, Номер 227(14)

Опубликована: Июль 15, 2024

Язык: Английский