Thiamine deficiency and seabirds in Norway. A pilot study
International audience Thiamine (vitamin B1) is vital for life-sustaining enzymes in cells. Previous studies have reportedepisodes of thiamine deficiency in marine ecosystems, and suggested that this have contributedto population declines of seabirds breeding in the Baltic Sea and elsewhere. Many No...
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ftunivnantes:oai:HAL:hal-03346311v1 2023-05-15T15:27:57+02:00 Thiamine deficiency and seabirds in Norway. A pilot study Moe, Børge Hanssen, Sveinn Are Ytrehus, Bjomar Balk, Lennart Chastel, Olivier Christensen-Dalsgaard, Signe Gustavsson, Hanna Langset, Magdalene Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) 2020-12-15 https://hal.archives-ouvertes.fr/hal-03346311 en eng HAL CCSD Norwegian Institute for Nature Research ISBN: 978-82-426-3471-9 hal-03346311 https://hal.archives-ouvertes.fr/hal-03346311 https://hal.archives-ouvertes.fr/hal-03346311 Norwegian Institute for Nature Research, 1720, pp.1-38, 2020, 978-82-426-3471-9 Oslofjord Nordland Troms Svalbard seabirds marine ecosystems thiamine deficiency common eider herring gull black legged kittiwake Atlantic puffin egg yolk blue mussel pathology necropsy clinical signs of disease [SDE]Environmental Sciences info:eu-repo/semantics/book Books 2020 ftunivnantes 2023-01-03T23:57:55Z International audience Thiamine (vitamin B1) is vital for life-sustaining enzymes in cells. Previous studies have reportedepisodes of thiamine deficiency in marine ecosystems, and suggested that this have contributedto population declines of seabirds breeding in the Baltic Sea and elsewhere. Many Norwegianseabird populations have shown a strong decline in population size, but thiamine status hasnever been assessed. The objective of this pilot study was, thus, to document thiamin levels inselected species and their associated food webs, and explore methodological issues relevantfor future studies or monitoring.The methodological tests showed that storage freezing temperature did not affect thiamine levelsin egg yolk samples, and that thiamine levels in eggs could not be corrected for incubation time.Furthermore, the quantified thiamine levels differed between two laboratories, and we developeda predictive equation to convert thiamine levels in egg yolk samples between the laboratories.This pilot study has, for the first time, investigated thiamine levels in seabird eggs from selectedspecies and populations in Norway mainland and Svalbard, and in their food webs. We revealedvariation among species, populations and prey types. The lowest levels were found in eggs fromcommon eiders and in blue mussel which is their prey. Eggs from herring gulls had also relativelylow levels. The levels for common eiders and herring gulls were higher than previously reportedfrom the Baltic Sea. Nevertheless, the levels from common eiders, herring gulls and blue musselsshould be classified as thiamine deficient according to effect-ranges reported in these previousstudies. The highest levels were found in eggs from kittiwakes and Atlantic puffins. The dietsamples from kittiwakes and Atlantic puffins had higher thiamine levels compared to bluemussels. This is the first time thiamine levels are reported for kittiwakes and Atlantic puffins.This pilot-study cannot answer whether Norwegian seabird population sizes are affected bythiamine ... Book Atlantic puffin Black-legged Kittiwake Common Eider Nordland Nordland Svalbard Nordland Troms Université de Nantes: HAL-UNIV-NANTES Norway Svalbard |
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Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Oslofjord Nordland Troms Svalbard seabirds marine ecosystems thiamine deficiency common eider herring gull black legged kittiwake Atlantic puffin egg yolk blue mussel pathology necropsy clinical signs of disease [SDE]Environmental Sciences |
spellingShingle |
Oslofjord Nordland Troms Svalbard seabirds marine ecosystems thiamine deficiency common eider herring gull black legged kittiwake Atlantic puffin egg yolk blue mussel pathology necropsy clinical signs of disease [SDE]Environmental Sciences Moe, Børge Hanssen, Sveinn Are Ytrehus, Bjomar Balk, Lennart Chastel, Olivier Christensen-Dalsgaard, Signe Gustavsson, Hanna Langset, Magdalene Thiamine deficiency and seabirds in Norway. A pilot study |
topic_facet |
Oslofjord Nordland Troms Svalbard seabirds marine ecosystems thiamine deficiency common eider herring gull black legged kittiwake Atlantic puffin egg yolk blue mussel pathology necropsy clinical signs of disease [SDE]Environmental Sciences |
description |
International audience Thiamine (vitamin B1) is vital for life-sustaining enzymes in cells. Previous studies have reportedepisodes of thiamine deficiency in marine ecosystems, and suggested that this have contributedto population declines of seabirds breeding in the Baltic Sea and elsewhere. Many Norwegianseabird populations have shown a strong decline in population size, but thiamine status hasnever been assessed. The objective of this pilot study was, thus, to document thiamin levels inselected species and their associated food webs, and explore methodological issues relevantfor future studies or monitoring.The methodological tests showed that storage freezing temperature did not affect thiamine levelsin egg yolk samples, and that thiamine levels in eggs could not be corrected for incubation time.Furthermore, the quantified thiamine levels differed between two laboratories, and we developeda predictive equation to convert thiamine levels in egg yolk samples between the laboratories.This pilot study has, for the first time, investigated thiamine levels in seabird eggs from selectedspecies and populations in Norway mainland and Svalbard, and in their food webs. We revealedvariation among species, populations and prey types. The lowest levels were found in eggs fromcommon eiders and in blue mussel which is their prey. Eggs from herring gulls had also relativelylow levels. The levels for common eiders and herring gulls were higher than previously reportedfrom the Baltic Sea. Nevertheless, the levels from common eiders, herring gulls and blue musselsshould be classified as thiamine deficient according to effect-ranges reported in these previousstudies. The highest levels were found in eggs from kittiwakes and Atlantic puffins. The dietsamples from kittiwakes and Atlantic puffins had higher thiamine levels compared to bluemussels. This is the first time thiamine levels are reported for kittiwakes and Atlantic puffins.This pilot-study cannot answer whether Norwegian seabird population sizes are affected bythiamine ... |
author2 |
Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
format |
Book |
author |
Moe, Børge Hanssen, Sveinn Are Ytrehus, Bjomar Balk, Lennart Chastel, Olivier Christensen-Dalsgaard, Signe Gustavsson, Hanna Langset, Magdalene |
author_facet |
Moe, Børge Hanssen, Sveinn Are Ytrehus, Bjomar Balk, Lennart Chastel, Olivier Christensen-Dalsgaard, Signe Gustavsson, Hanna Langset, Magdalene |
author_sort |
Moe, Børge |
title |
Thiamine deficiency and seabirds in Norway. A pilot study |
title_short |
Thiamine deficiency and seabirds in Norway. A pilot study |
title_full |
Thiamine deficiency and seabirds in Norway. A pilot study |
title_fullStr |
Thiamine deficiency and seabirds in Norway. A pilot study |
title_full_unstemmed |
Thiamine deficiency and seabirds in Norway. A pilot study |
title_sort |
thiamine deficiency and seabirds in norway. a pilot study |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.archives-ouvertes.fr/hal-03346311 |
geographic |
Norway Svalbard |
geographic_facet |
Norway Svalbard |
genre |
Atlantic puffin Black-legged Kittiwake Common Eider Nordland Nordland Svalbard Nordland Troms |
genre_facet |
Atlantic puffin Black-legged Kittiwake Common Eider Nordland Nordland Svalbard Nordland Troms |
op_source |
https://hal.archives-ouvertes.fr/hal-03346311 Norwegian Institute for Nature Research, 1720, pp.1-38, 2020, 978-82-426-3471-9 |
op_relation |
ISBN: 978-82-426-3471-9 hal-03346311 https://hal.archives-ouvertes.fr/hal-03346311 |
_version_ |
1766358346489659392 |