Comparison between activity estimates obtained using bioenergetic and behavioural analysesContribution of the Groupe de Recherche Interuniversitaire en Limnologie (GRIL).
Activity rate of Arctic char ( Salvelinus alpinus ) held in 90 m 2 littoral enclosures were estimated using bioenergetic (with consumption estimated using stable caesium, 133 Cs) and behavioural approaches (with fish movements quantified using video cameras). We found no statistically significant di...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
2008
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/f08-080 http://www.nrcresearchpress.com/doi/full-xml/10.1139/F08-080 http://www.nrcresearchpress.com/doi/pdf/10.1139/F08-080 |
id |
crcansciencepubl:10.1139/f08-080 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/f08-080 2023-12-17T10:26:15+01:00 Comparison between activity estimates obtained using bioenergetic and behavioural analysesContribution of the Groupe de Recherche Interuniversitaire en Limnologie (GRIL). Guénard, Guillaume Boisclair, Daniel Ugedal, Ola Forseth, Torbjørn Jonsson, Bror 2008 http://dx.doi.org/10.1139/f08-080 http://www.nrcresearchpress.com/doi/full-xml/10.1139/F08-080 http://www.nrcresearchpress.com/doi/pdf/10.1139/F08-080 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 65, issue 8, page 1705-1720 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2008 crcansciencepubl https://doi.org/10.1139/f08-080 2023-11-19T13:39:02Z Activity rate of Arctic char ( Salvelinus alpinus ) held in 90 m 2 littoral enclosures were estimated using bioenergetic (with consumption estimated using stable caesium, 133 Cs) and behavioural approaches (with fish movements quantified using video cameras). We found no statistically significant difference between values of activity rate obtained using the two approaches for three of the six experiments we performed. However, there was no relationship between estimates of activity rate obtained using the two approaches. Discrepancies may arise from the difficulty to meet assumptions regarding the temporal stability of the concentration of 133 Cs in fish diet and of the assimilation coefficient of this tracer. When fish remain in an area where their behaviour can be well described (e.g., enclosure, habitat patches of littoral zones, coral reefs), the behavioural approach appears more robust to estimate activity rate because it depends most on a variable that is easiest to estimate (the number of movements performed). When these conditions are not met (low fish densities or major fish migrations), a reliable assessment of the concentration and assimilation of 133 Cs in stomach contents appears critical to implement the bioenergetic approach based on this tracer. Article in Journal/Newspaper Arctic Salvelinus alpinus Canadian Science Publishing (via Crossref) Arctic Canadian Journal of Fisheries and Aquatic Sciences 65 8 1705 1720 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Guénard, Guillaume Boisclair, Daniel Ugedal, Ola Forseth, Torbjørn Jonsson, Bror Comparison between activity estimates obtained using bioenergetic and behavioural analysesContribution of the Groupe de Recherche Interuniversitaire en Limnologie (GRIL). |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Activity rate of Arctic char ( Salvelinus alpinus ) held in 90 m 2 littoral enclosures were estimated using bioenergetic (with consumption estimated using stable caesium, 133 Cs) and behavioural approaches (with fish movements quantified using video cameras). We found no statistically significant difference between values of activity rate obtained using the two approaches for three of the six experiments we performed. However, there was no relationship between estimates of activity rate obtained using the two approaches. Discrepancies may arise from the difficulty to meet assumptions regarding the temporal stability of the concentration of 133 Cs in fish diet and of the assimilation coefficient of this tracer. When fish remain in an area where their behaviour can be well described (e.g., enclosure, habitat patches of littoral zones, coral reefs), the behavioural approach appears more robust to estimate activity rate because it depends most on a variable that is easiest to estimate (the number of movements performed). When these conditions are not met (low fish densities or major fish migrations), a reliable assessment of the concentration and assimilation of 133 Cs in stomach contents appears critical to implement the bioenergetic approach based on this tracer. |
format |
Article in Journal/Newspaper |
author |
Guénard, Guillaume Boisclair, Daniel Ugedal, Ola Forseth, Torbjørn Jonsson, Bror |
author_facet |
Guénard, Guillaume Boisclair, Daniel Ugedal, Ola Forseth, Torbjørn Jonsson, Bror |
author_sort |
Guénard, Guillaume |
title |
Comparison between activity estimates obtained using bioenergetic and behavioural analysesContribution of the Groupe de Recherche Interuniversitaire en Limnologie (GRIL). |
title_short |
Comparison between activity estimates obtained using bioenergetic and behavioural analysesContribution of the Groupe de Recherche Interuniversitaire en Limnologie (GRIL). |
title_full |
Comparison between activity estimates obtained using bioenergetic and behavioural analysesContribution of the Groupe de Recherche Interuniversitaire en Limnologie (GRIL). |
title_fullStr |
Comparison between activity estimates obtained using bioenergetic and behavioural analysesContribution of the Groupe de Recherche Interuniversitaire en Limnologie (GRIL). |
title_full_unstemmed |
Comparison between activity estimates obtained using bioenergetic and behavioural analysesContribution of the Groupe de Recherche Interuniversitaire en Limnologie (GRIL). |
title_sort |
comparison between activity estimates obtained using bioenergetic and behavioural analysescontribution of the groupe de recherche interuniversitaire en limnologie (gril). |
publisher |
Canadian Science Publishing |
publishDate |
2008 |
url |
http://dx.doi.org/10.1139/f08-080 http://www.nrcresearchpress.com/doi/full-xml/10.1139/F08-080 http://www.nrcresearchpress.com/doi/pdf/10.1139/F08-080 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Salvelinus alpinus |
genre_facet |
Arctic Salvelinus alpinus |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 65, issue 8, page 1705-1720 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f08-080 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
65 |
container_issue |
8 |
container_start_page |
1705 |
op_container_end_page |
1720 |
_version_ |
1785577972428701696 |