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Respiration rates o...
Respiration rates of herring larvae at different salinities, and effects of previous environmental history
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- Berg, Florian (author)
- Univ Bergen, Dept Biol Sci, N-5020 Bergen, Norway.;Inst Marine Res IMR, N-5018 Bergen, Norway.
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- Andersson, Leif (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi,Science for Life Laboratory, SciLifeLab,Swedish Univ Agr Sci, Dept Anim Breeding & Genet, S-75007 Uppsala, Sweden.;Texas A&M Univ, Dept Vet Integrat Biosci, College Stn, TX 77843 USA.,Institutionen för husdjursgenetik (HGEN),Department of Animal Breeding and Genetics,Uppsala University,Texas A&M University
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- Folkvord, Arild (author)
- Univ Bergen, Dept Biol Sci, N-5020 Bergen, Norway.;Inst Marine Res IMR, N-5018 Bergen, Norway.
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Univ Bergen, Dept Biol Sci, N-5020 Bergen, Norway;Inst Marine Res IMR, N-5018 Bergen, Norway. Institutionen för medicinsk biokemi och mikrobiologi (creator_code:org_t)
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- INTER-RESEARCH, 2020
- 2020
- English.
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In: Marine Ecology Progress Series. - : INTER-RESEARCH. - 0171-8630 .- 1616-1599. ; 650, s. 141-152
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https://doi.org/10.3...
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Abstract
Subject headings
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- Metabolic rates of early life history stages of marine fishes show considerable interindividual differences, and are highly influenced by extrinsic factors like temperature or food availability. Measuring oxygen uptake rates is a proxy for estimating metabolic rates. Still, the relationship between respiration rates and ambient or previous salinity conditions as well as parental and developmental acclimation to changes in salinity remains largely unexplored. In the present study, we conducted experiments to investigate the effects of salinity on the routine metabolic rates (RMR) of euryhaline Atlantic herring Clupea harengus larvae at 3 levels of salinity: low (6 psu), intermediate (16 psu) and high (35 psu), reflecting ecologically relevant conditions for herring populations in the Atlantic Ocean and Baltic Sea. The larvae originated from different genetic backgrounds and salinity adaptations to account for cross-generation effects on metabolic rates. Closed respirometry carried out over 24 h on individual fish larvae generally confirmed near isometric respiration rates at all salinity regimes, with rates being 15.4% higher at 6 psu and 7.5% higher at 35 psu compared to 16 psu conditions. However, transgenerational acclimation to different salinity regimes of the parents had no effect on the salinity-specific metabolic rates of their offspring. Our study demonstrates the ability of herring to cope with a wide range of salinity conditions, irrespective of parental environmental history and genetic origin. This phenotypic plasticity is considered to be one of the main contributing factors to the success of herring as a widely distributed fish species in the North Atlantic and adjacent waters.
Subject headings
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Keyword
- Respiration
- Salinity
- Clupea harengus
- Larval fish
- Osmoregulation
Publication and Content Type
- ref (subject category)
- art (subject category)
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