Growth and egg production of female Calanus finmarchicus: an individual-based physiological model and experimental validation
International audience A detailed individual-based model of egg production of Calanus finmarchicus is proposed. Female growth and egg production are represented by 8 state variables (gut content, nutrient pool, structural body, oil sac, and 4 stages of oocyte maturation) which are regulated by physi...
Published in: | Marine Ecology Progress Series |
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Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
1997
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Online Access: | https://hal.archives-ouvertes.fr/hal-02987496 https://hal.archives-ouvertes.fr/hal-02987496/document https://hal.archives-ouvertes.fr/hal-02987496/file/m149p091.pdf https://doi.org/10.3354/meps149091 |
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ftunivnantes:oai:HAL:hal-02987496v1 2023-05-15T15:47:57+02:00 Growth and egg production of female Calanus finmarchicus: an individual-based physiological model and experimental validation Carlottil, François Hirche, Hans-Jürgen Institut méditerranéen d'océanologie (MIO) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS) Alfred Wegener Institute for Polar and Marine Research (AWI) 1997-04-10 https://hal.archives-ouvertes.fr/hal-02987496 https://hal.archives-ouvertes.fr/hal-02987496/document https://hal.archives-ouvertes.fr/hal-02987496/file/m149p091.pdf https://doi.org/10.3354/meps149091 en eng HAL CCSD Inter Research info:eu-repo/semantics/altIdentifier/doi/10.3354/meps149091 hal-02987496 https://hal.archives-ouvertes.fr/hal-02987496 https://hal.archives-ouvertes.fr/hal-02987496/document https://hal.archives-ouvertes.fr/hal-02987496/file/m149p091.pdf doi:10.3354/meps149091 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.archives-ouvertes.fr/hal-02987496 Marine Ecology Progress Series, Inter Research, 1997, 149, pp.91-104. ⟨10.3354/meps149091⟩ Calanus finn~archicus Egg production Physiological model Growth [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology [SDV.BDLR.RS]Life Sciences [q-bio]/Reproductive Biology/Sexual reproduction [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 1997 ftunivnantes https://doi.org/10.3354/meps149091 2022-06-29T01:33:09Z International audience A detailed individual-based model of egg production of Calanus finmarchicus is proposed. Female growth and egg production are represented by 8 state variables (gut content, nutrient pool, structural body, oil sac, and 4 stages of oocyte maturation) which are regulated by physiological processes. Clutch size is set constant under continuous food conditions, but the spawning interval changes with food availability and temperature depending on the rate of oocyte maturation. Smaller clutches can occur when eggs are released under bad external conditions. Thus changing conditions can produce different clutch size distributions. For model validation, egg production experiments were conducted under different constant and fluctuating food concentrations and compared with model simulations. In the experiments, egg production was strongly affected by food fluctuation. In experiments with alternating feeding and starvation cycles integrated egg production was affected by mean food concentration during the experiment rather than by the frequency of the cycles. The model reproduces correctly the egg production rates and final body carbon of females kept in the different food regimes. It provides a dynamical explanation of physiological responses of the individual under short-term food variation. When food becomes unavailable, the most advanced oocytes are released and egg production continues until the nutrient pool decreases below a minimal critical value. Thereafter, no eggs are laid. When food reappears, somatic growth resumes until structural body weight is restored, then oogenesis is fuelled. Experimental results were simulated correctly without using matter from the lipid pool Article in Journal/Newspaper Calanus finmarchicus Université de Nantes: HAL-UNIV-NANTES Finn ENVELOPE(12.739,12.739,65.935,65.935) Marine Ecology Progress Series 149 91 104 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Calanus finn~archicus Egg production Physiological model Growth [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology [SDV.BDLR.RS]Life Sciences [q-bio]/Reproductive Biology/Sexual reproduction [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
Calanus finn~archicus Egg production Physiological model Growth [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology [SDV.BDLR.RS]Life Sciences [q-bio]/Reproductive Biology/Sexual reproduction [SDE.BE]Environmental Sciences/Biodiversity and Ecology Carlottil, François Hirche, Hans-Jürgen Growth and egg production of female Calanus finmarchicus: an individual-based physiological model and experimental validation |
topic_facet |
Calanus finn~archicus Egg production Physiological model Growth [SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate Zoology [SDV.BDLR.RS]Life Sciences [q-bio]/Reproductive Biology/Sexual reproduction [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience A detailed individual-based model of egg production of Calanus finmarchicus is proposed. Female growth and egg production are represented by 8 state variables (gut content, nutrient pool, structural body, oil sac, and 4 stages of oocyte maturation) which are regulated by physiological processes. Clutch size is set constant under continuous food conditions, but the spawning interval changes with food availability and temperature depending on the rate of oocyte maturation. Smaller clutches can occur when eggs are released under bad external conditions. Thus changing conditions can produce different clutch size distributions. For model validation, egg production experiments were conducted under different constant and fluctuating food concentrations and compared with model simulations. In the experiments, egg production was strongly affected by food fluctuation. In experiments with alternating feeding and starvation cycles integrated egg production was affected by mean food concentration during the experiment rather than by the frequency of the cycles. The model reproduces correctly the egg production rates and final body carbon of females kept in the different food regimes. It provides a dynamical explanation of physiological responses of the individual under short-term food variation. When food becomes unavailable, the most advanced oocytes are released and egg production continues until the nutrient pool decreases below a minimal critical value. Thereafter, no eggs are laid. When food reappears, somatic growth resumes until structural body weight is restored, then oogenesis is fuelled. Experimental results were simulated correctly without using matter from the lipid pool |
author2 |
Institut méditerranéen d'océanologie (MIO) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS) Alfred Wegener Institute for Polar and Marine Research (AWI) |
format |
Article in Journal/Newspaper |
author |
Carlottil, François Hirche, Hans-Jürgen |
author_facet |
Carlottil, François Hirche, Hans-Jürgen |
author_sort |
Carlottil, François |
title |
Growth and egg production of female Calanus finmarchicus: an individual-based physiological model and experimental validation |
title_short |
Growth and egg production of female Calanus finmarchicus: an individual-based physiological model and experimental validation |
title_full |
Growth and egg production of female Calanus finmarchicus: an individual-based physiological model and experimental validation |
title_fullStr |
Growth and egg production of female Calanus finmarchicus: an individual-based physiological model and experimental validation |
title_full_unstemmed |
Growth and egg production of female Calanus finmarchicus: an individual-based physiological model and experimental validation |
title_sort |
growth and egg production of female calanus finmarchicus: an individual-based physiological model and experimental validation |
publisher |
HAL CCSD |
publishDate |
1997 |
url |
https://hal.archives-ouvertes.fr/hal-02987496 https://hal.archives-ouvertes.fr/hal-02987496/document https://hal.archives-ouvertes.fr/hal-02987496/file/m149p091.pdf https://doi.org/10.3354/meps149091 |
long_lat |
ENVELOPE(12.739,12.739,65.935,65.935) |
geographic |
Finn |
geographic_facet |
Finn |
genre |
Calanus finmarchicus |
genre_facet |
Calanus finmarchicus |
op_source |
ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.archives-ouvertes.fr/hal-02987496 Marine Ecology Progress Series, Inter Research, 1997, 149, pp.91-104. ⟨10.3354/meps149091⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3354/meps149091 hal-02987496 https://hal.archives-ouvertes.fr/hal-02987496 https://hal.archives-ouvertes.fr/hal-02987496/document https://hal.archives-ouvertes.fr/hal-02987496/file/m149p091.pdf doi:10.3354/meps149091 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.3354/meps149091 |
container_title |
Marine Ecology Progress Series |
container_volume |
149 |
container_start_page |
91 |
op_container_end_page |
104 |
_version_ |
1766382938597883904 |