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Increased acute thermal tolerance and little change to hematology following acclimation to warm water in juvenile Striped Bass, Morone saxatilis
- Source :
- Environmental Biology of Fishes. 104:489-500
- Publication Year :
- 2021
- Publisher :
- Springer Science and Business Media LLC, 2021.
-
Abstract
- Striped Bass naturally inhabit a wide range of temperatures, yet little is known about the processes that control their acute and chronic temperature limits. The objective of this study was to determine the effect of temperature acclimation on acute thermal maxima and physiology of juvenile Striped Bass. Juvenile fish were acclimated to 15, 25 or 30 °C for 4 weeks, then split into two sampling groups: post-acclimation and post-critical thermal maximum trials. We found that fish survived in all acclimation temperatures with little change to underlying hematology, and that critical thermal maximum (CTmax) increased with increasing acclimation temperature. At CTmax, fish acclimated to 30 °C had elevated plasma cortisol, lactate and potassium levels. These results suggest that, while 30 °C is likely to be outside their thermal optima, Striped Bass can survive at high temperatures. This ability to cope with warm temperatures may provide an advantage with increasing global temperatures.
- Subjects :
- 0106 biological sciences
food.ingredient
Morone saxatilis
010604 marine biology & hydrobiology
Juvenile fish
Aquatic Science
Biology
010603 evolutionary biology
01 natural sciences
Acclimatization
Bass (fish)
Animal science
food
Plasma cortisol
Warm water
Juvenile
sense organs
14. Life underwater
Critical thermal maximum
Ecology, Evolution, Behavior and Systematics
Subjects
Details
- ISSN :
- 15735133 and 03781909
- Volume :
- 104
- Database :
- OpenAIRE
- Journal :
- Environmental Biology of Fishes
- Accession number :
- edsair.doi...........7988426799e50f572d7cffe7cb504d56