Acute warming tolerance (CTmax) in zebrafish (Danio rerio) appears unaffected by changes in water salinity.
PeerJ
; 12: e17343, 2024.
Article
in En
| MEDLINE
| ID: mdl-38948212
ABSTRACT
Tolerance against acute warming is an essential trait that can determine how organisms cope during heat waves, yet the mechanisms underlying it remain elusive. Water salinity has previously been suggested to modulate warming tolerance in fish and may therefore provide clues towards these limiting mechanisms. Here, using the critical thermal maximum (CTmax) test, we investigated whether short (2 hours) and long (10 days) term exposure to different water salinities (2 hours 0-5 ppt, 10 days 0-3 ppt) affected acute warming tolerance in zebrafish (N = 263). We found that water salinity did not affect the warming tolerance of zebrafish at either time point, indicating that salinity does not affect the mechanism limiting acute warming tolerance in zebrafish at these salinity ranges, and that natural fluctuations in salinity levels might not have a large impact on acute warming tolerance in wild zebrafish.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Zebrafish
/
Salinity
Limits:
Animals
Language:
En
Journal:
PeerJ
Year:
2024
Document type:
Article
Affiliation country:
Finland
Country of publication:
United States