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Experimental validation of geosmin uptake in rainbow trout,Oncorhynchus mykiss(Waldbaum) suggests biotransformation
- Source :
- Aquaculture Research, 49(2), 668-675, Aquaculture Research 49 (2018) 2
- Publication Year :
- 2017
- Publisher :
- Hindawi Limited, 2017.
-
Abstract
- The bioconcentration of waterborne geosmin in rainbow trout, Oncorhynchus mykiss (Waldbaum) was assessed. Fifty rainbow trout with a mean (SD) weight of 226.6 (29.0) g and lipid content of 6.2 (0.6) % (w/w) were exposed to geosmin in static water for 0, 2, 4, 6, 8, 12, 24, 36, 48 and 120 hr, with one tank containing five fish for eac h exposure period. Geosmin concentrations were measured in fish tissue and water samples collected over time. With time the geosmin concentration in the fish increased and decreased in the water. However, the total absolute amount of geosmin in the system declined over time which could be explained by induction of biotransformation. This is in accordance with the decreasing lipid normalized geosmin levels in the liver compared with the liver-free carcass. Geosmin distribution within rainbow trout clearly is not exclusively governed by the lipid content of tissues. In vivo geosmin bioconcentration in rainbow trout is slower and the body burden reached is lower than the generally accepted theoretical model predicts.
- Subjects :
- endocrine system
animal structures
animal diseases
Bioconcentration
010501 environmental sciences
Aquatic Science
Biology
digestive system
01 natural sciences
chemistry.chemical_compound
Marine Animal Ecology
Onderzoeksformatie
Aquaculture and Fisheries
Biotransformation
Food science
0105 earth and related environmental sciences
water-lipid partitioning
Off-flavour
Aquacultuur en Visserij
urogenital system
Mariene Dierecologie
04 agricultural and veterinary sciences
Experimental validation
rainbow trout
Geosmin
Fishery
bioconcentration
chemistry
Absolute amount
Exposure period
WIAS
040102 fisheries
geosmin
0401 agriculture, forestry, and fisheries
Rainbow trout
biotransformation
off-flavour
Subjects
Details
- ISSN :
- 1355557X
- Volume :
- 49
- Database :
- OpenAIRE
- Journal :
- Aquaculture Research
- Accession number :
- edsair.doi.dedup.....80302e2cffe1a46fce619a09ebe95b10