Parameter Estimations of Dynamic Energy Budget (DEB) Model over the Life History of a Key Antarctic Species: The Antarctic Sea Star Odontaster validus Koehler, 1906
Marine organisms in Antarctica are adapted to an extreme ecosystem including extremely stable temperatures and strong seasonality due to changes in day length. It is now largely accepted that Southern Ocean organisms are particularly vulnerable to global warming with some regions already being chall...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/218366 2023-05-15T13:47:16+02:00 Parameter Estimations of Dynamic Energy Budget (DEB) Model over the Life History of a Key Antarctic Species: The Antarctic Sea Star Odontaster validus Koehler, 1906 Aguera Garcia, Antonio Collard, Marie Jossart, Quentin Moreau, Camille Danis, Bruno 2015-10-09 2 full-text file(s): application/pdf | application/pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/218366 https://dipot.ulb.ac.be/dspace/bitstream/2013/218366/3/journal.pone.0140078.pdf https://dipot.ulb.ac.be/dspace/bitstream/2013/218366/4/doi_201993.pdf en eng uri/info:doi/10.1371/journal.pone.0140078 uri/info:scp/84948660271 https://dipot.ulb.ac.be/dspace/bitstream/2013/218366/3/journal.pone.0140078.pdf https://dipot.ulb.ac.be/dspace/bitstream/2013/218366/4/doi_201993.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/218366 2 full-text file(s): info:eu-repo/semantics/restrictedAccess | info:eu-repo/semantics/openAccess PloS one Sciences exactes et naturelles info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2015 ftunivbruxelles 2022-06-12T21:27:47Z Marine organisms in Antarctica are adapted to an extreme ecosystem including extremely stable temperatures and strong seasonality due to changes in day length. It is now largely accepted that Southern Ocean organisms are particularly vulnerable to global warming with some regions already being challenged by a rapid increase of temperature. Climate change affects both the physical and biotic components of marine ecosystems and will have an impact on the distribution and population dynamics of Antarctic marine organisms. To pre- dict and assess the effect of climate change on marine ecosystems a more comprehensive knowledge of the life history and physiology of key species is urgently needed. In this study we estimate the Dynamic Energy Budget (DEB) model parameters for key benthic Antarctic species the sea star Odontaster validus using available information from literature and experiments. The DEB theory is unique in capturing the metabolic processes of an organ- ism through its entire life cycle as a function of temperature and food availability. The DEB model allows for the inclusion of the different life history stages, and thus, becomes a tool that can be used to model lifetime feeding, growth, reproduction, and their responses to changes in biotic and abiotic conditions. The DEB model presented here includes the esti- mation of reproduction handling rules for the development of simultaneous oocyte cohorts within the gonad. Additionally it links the DEB model reserves to the pyloric caeca an organ whose function has long been ascribed to energy storage. Model parameters described a slowed down metabolism of long living animals that mature slowly. O. validus has a large reserve that—matching low maintenance costs- allow withstanding long periods of starva- tion. Gonad development is continuous and individual cohorts developed within the gonads grow in biomass following a power function of the age of the cohort. The DEB model devel- oped here for O. validus allowed us to increase our knowledge on the ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Southern Ocean DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Antarctic Southern Ocean The Antarctic |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Sciences exactes et naturelles |
spellingShingle |
Sciences exactes et naturelles Aguera Garcia, Antonio Collard, Marie Jossart, Quentin Moreau, Camille Danis, Bruno Parameter Estimations of Dynamic Energy Budget (DEB) Model over the Life History of a Key Antarctic Species: The Antarctic Sea Star Odontaster validus Koehler, 1906 |
topic_facet |
Sciences exactes et naturelles |
description |
Marine organisms in Antarctica are adapted to an extreme ecosystem including extremely stable temperatures and strong seasonality due to changes in day length. It is now largely accepted that Southern Ocean organisms are particularly vulnerable to global warming with some regions already being challenged by a rapid increase of temperature. Climate change affects both the physical and biotic components of marine ecosystems and will have an impact on the distribution and population dynamics of Antarctic marine organisms. To pre- dict and assess the effect of climate change on marine ecosystems a more comprehensive knowledge of the life history and physiology of key species is urgently needed. In this study we estimate the Dynamic Energy Budget (DEB) model parameters for key benthic Antarctic species the sea star Odontaster validus using available information from literature and experiments. The DEB theory is unique in capturing the metabolic processes of an organ- ism through its entire life cycle as a function of temperature and food availability. The DEB model allows for the inclusion of the different life history stages, and thus, becomes a tool that can be used to model lifetime feeding, growth, reproduction, and their responses to changes in biotic and abiotic conditions. The DEB model presented here includes the esti- mation of reproduction handling rules for the development of simultaneous oocyte cohorts within the gonad. Additionally it links the DEB model reserves to the pyloric caeca an organ whose function has long been ascribed to energy storage. Model parameters described a slowed down metabolism of long living animals that mature slowly. O. validus has a large reserve that—matching low maintenance costs- allow withstanding long periods of starva- tion. Gonad development is continuous and individual cohorts developed within the gonads grow in biomass following a power function of the age of the cohort. The DEB model devel- oped here for O. validus allowed us to increase our knowledge on the ... |
format |
Article in Journal/Newspaper |
author |
Aguera Garcia, Antonio Collard, Marie Jossart, Quentin Moreau, Camille Danis, Bruno |
author_facet |
Aguera Garcia, Antonio Collard, Marie Jossart, Quentin Moreau, Camille Danis, Bruno |
author_sort |
Aguera Garcia, Antonio |
title |
Parameter Estimations of Dynamic Energy Budget (DEB) Model over the Life History of a Key Antarctic Species: The Antarctic Sea Star Odontaster validus Koehler, 1906 |
title_short |
Parameter Estimations of Dynamic Energy Budget (DEB) Model over the Life History of a Key Antarctic Species: The Antarctic Sea Star Odontaster validus Koehler, 1906 |
title_full |
Parameter Estimations of Dynamic Energy Budget (DEB) Model over the Life History of a Key Antarctic Species: The Antarctic Sea Star Odontaster validus Koehler, 1906 |
title_fullStr |
Parameter Estimations of Dynamic Energy Budget (DEB) Model over the Life History of a Key Antarctic Species: The Antarctic Sea Star Odontaster validus Koehler, 1906 |
title_full_unstemmed |
Parameter Estimations of Dynamic Energy Budget (DEB) Model over the Life History of a Key Antarctic Species: The Antarctic Sea Star Odontaster validus Koehler, 1906 |
title_sort |
parameter estimations of dynamic energy budget (deb) model over the life history of a key antarctic species: the antarctic sea star odontaster validus koehler, 1906 |
publishDate |
2015 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/218366 https://dipot.ulb.ac.be/dspace/bitstream/2013/218366/3/journal.pone.0140078.pdf https://dipot.ulb.ac.be/dspace/bitstream/2013/218366/4/doi_201993.pdf |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean |
op_source |
PloS one |
op_relation |
uri/info:doi/10.1371/journal.pone.0140078 uri/info:scp/84948660271 https://dipot.ulb.ac.be/dspace/bitstream/2013/218366/3/journal.pone.0140078.pdf https://dipot.ulb.ac.be/dspace/bitstream/2013/218366/4/doi_201993.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/218366 |
op_rights |
2 full-text file(s): info:eu-repo/semantics/restrictedAccess | info:eu-repo/semantics/openAccess |
_version_ |
1766246839906992128 |