Thermal plasticity and performance adaptations in gadid muscle: consequences for activity and lifestyle: Temperatur-Plastizität und Leistungsanpassung im Fisch-Muskel (Gadidae): Konsequenzen für Aktivitätsniveau und Lebensweise
Atlantic cod, Gadus morhua, muscle, oxygen consumption, heart, swimming performance, myoglobin, mitochondria, ultrastructure, respiration, adrenaline. - A recently developed model of thermal tolerance proposed that a hierarchy of biological functioning exists, each level of which displays different...
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Niedersächsische Staats- und Universitätsbibliothek
2007
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Online Access: | http://webdoc.sub.gwdg.de/ebook/dissts/Bremen/Lurman2007.pdf http://nbn-resolving.de/urn:nbn:de:gbv:46-diss000108975 |
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ftgbv:oai:gbv.de:opac-de-7:ppn:557204208 2023-05-15T15:10:28+02:00 Thermal plasticity and performance adaptations in gadid muscle: consequences for activity and lifestyle: Temperatur-Plastizität und Leistungsanpassung im Fisch-Muskel (Gadidae): Konsequenzen für Aktivitätsniveau und Lebensweise Temperatur-Plastizität und Leistungsanpassung im Fisch-Muskel (Gadidae): Konsequenzen für Aktivitätsniveau und Lebensweise Lurman, Glenn J. 2007 electronic Elektronische Ressource = electronic resource remote Online-Ressource 151 p. = 15944 KB, text and images http://webdoc.sub.gwdg.de/ebook/dissts/Bremen/Lurman2007.pdf http://nbn-resolving.de/urn:nbn:de:gbv:46-diss000108975 eng eng Niedersächsische Staats- und Universitätsbibliothek Staats- und Universitätsbibliothek [Host] 2007 ftgbv 2016-12-25T23:09:16Z Atlantic cod, Gadus morhua, muscle, oxygen consumption, heart, swimming performance, myoglobin, mitochondria, ultrastructure, respiration, adrenaline. - A recently developed model of thermal tolerance proposed that a hierarchy of biological functioning exists, each level of which displays different thermal tolerances. As the hierarchy is ascended from a molecular and biochemical level, through cellular, organ, systemic, whole animal and ultimately ecological levels, the windows of thermal tolerance narrow. The current study looked at the thermal plasticity and adaptational mechanisms at selected biological levels of cod populations from the North East Arctic (NEAC), the North Sea (NSC) and Newfoundland (NFC), to explore their potential impacts on activity and lifestyle. Mitochondrial proliferation and increased myoglobin expression, in combination with the reduced kick and glide duration and a lower swimming efficiency all point to a metabolic shift from anaerobic pathways at 10 degrees C, towards a greater dependence on aerobic metabolism at 4 degrees C. All Atlantic cod populations were able to maintain cellular and biochemical, physiological and systemic functioning between 4 degrees C and 10 degrees C. Although biochemical, physiological and whole animal performance were reduced at 4 degrees C, acclimation temperature had no effect. The thermal flexibility of the examined functions at the different levels of organisation observed in the current study between 4 degrees C and 10 degrees C is evidently a requirement of living in the thermally unstable environment in which Atlantic cod find themselves. @Bremen, Univ., Diss., 2007 Other/Unknown Material Arctic atlantic cod Gadus morhua Newfoundland Georg-August-Universität Göttingen: GOEDOC Arctic Muskel’ ENVELOPE(137.207,137.207,61.404,61.404) |
institution |
Open Polar |
collection |
Georg-August-Universität Göttingen: GOEDOC |
op_collection_id |
ftgbv |
language |
English |
description |
Atlantic cod, Gadus morhua, muscle, oxygen consumption, heart, swimming performance, myoglobin, mitochondria, ultrastructure, respiration, adrenaline. - A recently developed model of thermal tolerance proposed that a hierarchy of biological functioning exists, each level of which displays different thermal tolerances. As the hierarchy is ascended from a molecular and biochemical level, through cellular, organ, systemic, whole animal and ultimately ecological levels, the windows of thermal tolerance narrow. The current study looked at the thermal plasticity and adaptational mechanisms at selected biological levels of cod populations from the North East Arctic (NEAC), the North Sea (NSC) and Newfoundland (NFC), to explore their potential impacts on activity and lifestyle. Mitochondrial proliferation and increased myoglobin expression, in combination with the reduced kick and glide duration and a lower swimming efficiency all point to a metabolic shift from anaerobic pathways at 10 degrees C, towards a greater dependence on aerobic metabolism at 4 degrees C. All Atlantic cod populations were able to maintain cellular and biochemical, physiological and systemic functioning between 4 degrees C and 10 degrees C. Although biochemical, physiological and whole animal performance were reduced at 4 degrees C, acclimation temperature had no effect. The thermal flexibility of the examined functions at the different levels of organisation observed in the current study between 4 degrees C and 10 degrees C is evidently a requirement of living in the thermally unstable environment in which Atlantic cod find themselves. @Bremen, Univ., Diss., 2007 |
author2 |
Lurman, Glenn J. |
title |
Thermal plasticity and performance adaptations in gadid muscle: consequences for activity and lifestyle: Temperatur-Plastizität und Leistungsanpassung im Fisch-Muskel (Gadidae): Konsequenzen für Aktivitätsniveau und Lebensweise |
spellingShingle |
Thermal plasticity and performance adaptations in gadid muscle: consequences for activity and lifestyle: Temperatur-Plastizität und Leistungsanpassung im Fisch-Muskel (Gadidae): Konsequenzen für Aktivitätsniveau und Lebensweise |
title_short |
Thermal plasticity and performance adaptations in gadid muscle: consequences for activity and lifestyle: Temperatur-Plastizität und Leistungsanpassung im Fisch-Muskel (Gadidae): Konsequenzen für Aktivitätsniveau und Lebensweise |
title_full |
Thermal plasticity and performance adaptations in gadid muscle: consequences for activity and lifestyle: Temperatur-Plastizität und Leistungsanpassung im Fisch-Muskel (Gadidae): Konsequenzen für Aktivitätsniveau und Lebensweise |
title_fullStr |
Thermal plasticity and performance adaptations in gadid muscle: consequences for activity and lifestyle: Temperatur-Plastizität und Leistungsanpassung im Fisch-Muskel (Gadidae): Konsequenzen für Aktivitätsniveau und Lebensweise |
title_full_unstemmed |
Thermal plasticity and performance adaptations in gadid muscle: consequences for activity and lifestyle: Temperatur-Plastizität und Leistungsanpassung im Fisch-Muskel (Gadidae): Konsequenzen für Aktivitätsniveau und Lebensweise |
title_sort |
thermal plasticity and performance adaptations in gadid muscle: consequences for activity and lifestyle: temperatur-plastizität und leistungsanpassung im fisch-muskel (gadidae): konsequenzen für aktivitätsniveau und lebensweise |
publisher |
Niedersächsische Staats- und Universitätsbibliothek |
publishDate |
2007 |
url |
http://webdoc.sub.gwdg.de/ebook/dissts/Bremen/Lurman2007.pdf http://nbn-resolving.de/urn:nbn:de:gbv:46-diss000108975 |
long_lat |
ENVELOPE(137.207,137.207,61.404,61.404) |
geographic |
Arctic Muskel’ |
geographic_facet |
Arctic Muskel’ |
genre |
Arctic atlantic cod Gadus morhua Newfoundland |
genre_facet |
Arctic atlantic cod Gadus morhua Newfoundland |
_version_ |
1766341491893993472 |