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Ploidy Has Minimal Effect on Hypoxia Tolerance at High Temperature in Rainbow Trout (Oncorhynchus mykiss)
- Source :
- Physiological and biochemical zoology : PBZ. 91(6)
- Publication Year :
- 2018
-
Abstract
- Polyploidy is an important driver of evolutionary change (generally via tetraploidy) and also serves a practical role in aquaculture and fisheries management (via triploidy). Fundamental changes in cell size and number that accompany polyploidy are predicted to affect cellular and whole-animal physiology due to constraints placed on surface-mediated processes at the cellular level, potentially altering environmental tolerances and optima. The aim of this study was to determine whether the documented reduction in thermal tolerance of aquatic polyploids is a result of their being less hypoxia tolerant. This was assessed by holding diploid and triploid rainbow trout for 1 h above their thermal optima in separate trials at eight temperatures between 20° and 27°C and then rapidly reducing the oxygen tension (Po
- Subjects :
- 030110 physiology
0301 basic medicine
Hot Temperature
Ploidies
Physiology
business.industry
Evolutionary change
Fisheries
Hypoxia (environmental)
Zoology
Biology
Biochemistry
Cell size
Oxygen
03 medical and health sciences
Minimal effect
Aquaculture
Oncorhynchus mykiss
Animals
Animal Science and Zoology
Rainbow trout
Fisheries management
Anaerobiosis
Ploidy
business
Subjects
Details
- ISSN :
- 15375293
- Volume :
- 91
- Issue :
- 6
- Database :
- OpenAIRE
- Journal :
- Physiological and biochemical zoology : PBZ
- Accession number :
- edsair.doi.dedup.....6d756aa0c159a0139364f3993d116bd7