Modelling paralytic shellfish toxins (PST) accumulation in
As other filter-feeders, Crassostrea gigas can concentrate paralytic shellfish toxins (PST) by consuming dinoflagellate phytoplankton species like Alexandrium minutum. Intake of PST in oyster tissues mainly results from feeding processes, i.e. clearance rate, pre-ingestive sorting and ingestion that...
Ausführliche Beschreibung
Autor*in: |
Pousse, Émilien [verfasserIn] Flye-Sainte-Marie, Jonathan [verfasserIn] Alunno-Bruscia, Marianne [verfasserIn] Hégaret, Hélène [verfasserIn] Rannou, Éric [verfasserIn] Pecquerie, Laure [verfasserIn] Marques, Gonçalo M. [verfasserIn] Thomas, Yoann [verfasserIn] Castrec, Justine [verfasserIn] Fabioux, Caroline [verfasserIn] Long, Marc [verfasserIn] Lassudrie, Malwenn [verfasserIn] Hermabessiere, Ludovic [verfasserIn] Amzil, Zouher [verfasserIn] Soudant, Philippe [verfasserIn] Jean, Fred [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2018 |
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Schlagwörter: |
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Übergeordnetes Werk: |
Enthalten in: Journal of sea research - Amsterdam [u.a.] : Elsevier Science, 1996, 143, Seite 152-164 |
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Übergeordnetes Werk: |
volume:143 ; pages:152-164 |
DOI / URN: |
10.1016/j.seares.2018.09.002 |
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Katalog-ID: |
ELV001181823 |
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520 | |a As other filter-feeders, Crassostrea gigas can concentrate paralytic shellfish toxins (PST) by consuming dinoflagellate phytoplankton species like Alexandrium minutum. Intake of PST in oyster tissues mainly results from feeding processes, i.e. clearance rate, pre-ingestive sorting and ingestion that are directly influenced by environmental conditions (trophic sources, temperature). This study aimed to develop a mechanistic model coupling the kinetics of PST accumulation and bioenergetics in C. gigas based on Dynamic Energy Budget (DEB) theory. For the first time, the Synthesizing Units (SU) concept was applied to formalize the feeding preference of oysters between non-toxic and toxic microalgae. Toxin intake and accumulation were both dependent on the physiological status of oysters. The accumulation was modelled through the dynamics of two toxin compartments: (1) a compartment of ingested but non-assimilated toxins, with labile toxins within the digestive gland eliminated via faeces production; (2) a compartment of assimilated toxins with a rapid detoxification rate (within a few days). Firstly, the DEB-PST model was calibrated using data from two laboratory experiments where oysters have been exposed to A. minutum. Secondly, it was validated using data from another laboratory experiment and from three field surveys carried out in the Bay of Brest (France) from 2012 to 2014. To account for the variability in PST content of A. minutum cells, the saxitoxin (STX) amount per energy units in a toxic algae (ρ PST ) was adjusted for each dataset. Additionally, the effects of PST on the oyster bioenergetics were calibrated during the first laboratory experiment. However, these effects were shown to depend on the strain of A. minutum. Results of this study could be of great importance for monitoring agencies and decision makers to identify risky conditions (e.g. production areas, seawater temperature), to properly assess detoxification step (e.g. duration, modalities) before any commercialization or to improve predictions regarding closing of shellfish areas. | ||
650 | 4 | |a Paralytic shellfish toxins (PST) | |
650 | 4 | |a Dynamic Energy Budget (DEB) | |
650 | 4 | |a Modelling | |
650 | 4 | |a Pacific oyster | |
700 | 1 | |a Flye-Sainte-Marie, Jonathan |e verfasserin |4 aut | |
700 | 1 | |a Alunno-Bruscia, Marianne |e verfasserin |4 aut | |
700 | 1 | |a Hégaret, Hélène |e verfasserin |4 aut | |
700 | 1 | |a Rannou, Éric |e verfasserin |4 aut | |
700 | 1 | |a Pecquerie, Laure |e verfasserin |0 (orcid)0000-0002-2973-1056 |4 aut | |
700 | 1 | |a Marques, Gonçalo M. |e verfasserin |4 aut | |
700 | 1 | |a Thomas, Yoann |e verfasserin |4 aut | |
700 | 1 | |a Castrec, Justine |e verfasserin |4 aut | |
700 | 1 | |a Fabioux, Caroline |e verfasserin |4 aut | |
700 | 1 | |a Long, Marc |e verfasserin |0 (orcid)0000-0001-7647-792X |4 aut | |
700 | 1 | |a Lassudrie, Malwenn |e verfasserin |0 (orcid)0000-0002-7004-926X |4 aut | |
700 | 1 | |a Hermabessiere, Ludovic |e verfasserin |0 (orcid)0000-0002-6775-2480 |4 aut | |
700 | 1 | |a Amzil, Zouher |e verfasserin |4 aut | |
700 | 1 | |a Soudant, Philippe |e verfasserin |4 aut | |
700 | 1 | |a Jean, Fred |e verfasserin |0 (orcid)0000-0002-1132-230X |4 aut | |
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10.1016/j.seares.2018.09.002 doi (DE-627)ELV001181823 (ELSEVIER)S1385-1101(18)30033-9 DE-627 ger DE-627 rda eng 550 DE-600 BIODIV DE-30 fid 38.90 bkl Pousse, Émilien verfasserin aut Modelling paralytic shellfish toxins (PST) accumulation in 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier As other filter-feeders, Crassostrea gigas can concentrate paralytic shellfish toxins (PST) by consuming dinoflagellate phytoplankton species like Alexandrium minutum. Intake of PST in oyster tissues mainly results from feeding processes, i.e. clearance rate, pre-ingestive sorting and ingestion that are directly influenced by environmental conditions (trophic sources, temperature). This study aimed to develop a mechanistic model coupling the kinetics of PST accumulation and bioenergetics in C. gigas based on Dynamic Energy Budget (DEB) theory. For the first time, the Synthesizing Units (SU) concept was applied to formalize the feeding preference of oysters between non-toxic and toxic microalgae. Toxin intake and accumulation were both dependent on the physiological status of oysters. The accumulation was modelled through the dynamics of two toxin compartments: (1) a compartment of ingested but non-assimilated toxins, with labile toxins within the digestive gland eliminated via faeces production; (2) a compartment of assimilated toxins with a rapid detoxification rate (within a few days). Firstly, the DEB-PST model was calibrated using data from two laboratory experiments where oysters have been exposed to A. minutum. Secondly, it was validated using data from another laboratory experiment and from three field surveys carried out in the Bay of Brest (France) from 2012 to 2014. To account for the variability in PST content of A. minutum cells, the saxitoxin (STX) amount per energy units in a toxic algae (ρ PST ) was adjusted for each dataset. Additionally, the effects of PST on the oyster bioenergetics were calibrated during the first laboratory experiment. However, these effects were shown to depend on the strain of A. minutum. Results of this study could be of great importance for monitoring agencies and decision makers to identify risky conditions (e.g. production areas, seawater temperature), to properly assess detoxification step (e.g. duration, modalities) before any commercialization or to improve predictions regarding closing of shellfish areas. Paralytic shellfish toxins (PST) Dynamic Energy Budget (DEB) Modelling Pacific oyster Flye-Sainte-Marie, Jonathan verfasserin aut Alunno-Bruscia, Marianne verfasserin aut Hégaret, Hélène verfasserin aut Rannou, Éric verfasserin aut Pecquerie, Laure verfasserin (orcid)0000-0002-2973-1056 aut Marques, Gonçalo M. verfasserin aut Thomas, Yoann verfasserin aut Castrec, Justine verfasserin aut Fabioux, Caroline verfasserin aut Long, Marc verfasserin (orcid)0000-0001-7647-792X aut Lassudrie, Malwenn verfasserin (orcid)0000-0002-7004-926X aut Hermabessiere, Ludovic verfasserin (orcid)0000-0002-6775-2480 aut Amzil, Zouher verfasserin aut Soudant, Philippe verfasserin aut Jean, Fred verfasserin (orcid)0000-0002-1132-230X aut Enthalten in Journal of sea research Amsterdam [u.a.] : Elsevier Science, 1996 143, Seite 152-164 Online-Ressource (DE-627)30636140X (DE-600)1497225-6 (DE-576)259484067 1385-1101 nnns volume:143 pages:152-164 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2106 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.90 Ozeanologie Ozeanographie AR 143 152-164 |
spelling |
10.1016/j.seares.2018.09.002 doi (DE-627)ELV001181823 (ELSEVIER)S1385-1101(18)30033-9 DE-627 ger DE-627 rda eng 550 DE-600 BIODIV DE-30 fid 38.90 bkl Pousse, Émilien verfasserin aut Modelling paralytic shellfish toxins (PST) accumulation in 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier As other filter-feeders, Crassostrea gigas can concentrate paralytic shellfish toxins (PST) by consuming dinoflagellate phytoplankton species like Alexandrium minutum. Intake of PST in oyster tissues mainly results from feeding processes, i.e. clearance rate, pre-ingestive sorting and ingestion that are directly influenced by environmental conditions (trophic sources, temperature). This study aimed to develop a mechanistic model coupling the kinetics of PST accumulation and bioenergetics in C. gigas based on Dynamic Energy Budget (DEB) theory. For the first time, the Synthesizing Units (SU) concept was applied to formalize the feeding preference of oysters between non-toxic and toxic microalgae. Toxin intake and accumulation were both dependent on the physiological status of oysters. The accumulation was modelled through the dynamics of two toxin compartments: (1) a compartment of ingested but non-assimilated toxins, with labile toxins within the digestive gland eliminated via faeces production; (2) a compartment of assimilated toxins with a rapid detoxification rate (within a few days). Firstly, the DEB-PST model was calibrated using data from two laboratory experiments where oysters have been exposed to A. minutum. Secondly, it was validated using data from another laboratory experiment and from three field surveys carried out in the Bay of Brest (France) from 2012 to 2014. To account for the variability in PST content of A. minutum cells, the saxitoxin (STX) amount per energy units in a toxic algae (ρ PST ) was adjusted for each dataset. Additionally, the effects of PST on the oyster bioenergetics were calibrated during the first laboratory experiment. However, these effects were shown to depend on the strain of A. minutum. Results of this study could be of great importance for monitoring agencies and decision makers to identify risky conditions (e.g. production areas, seawater temperature), to properly assess detoxification step (e.g. duration, modalities) before any commercialization or to improve predictions regarding closing of shellfish areas. Paralytic shellfish toxins (PST) Dynamic Energy Budget (DEB) Modelling Pacific oyster Flye-Sainte-Marie, Jonathan verfasserin aut Alunno-Bruscia, Marianne verfasserin aut Hégaret, Hélène verfasserin aut Rannou, Éric verfasserin aut Pecquerie, Laure verfasserin (orcid)0000-0002-2973-1056 aut Marques, Gonçalo M. verfasserin aut Thomas, Yoann verfasserin aut Castrec, Justine verfasserin aut Fabioux, Caroline verfasserin aut Long, Marc verfasserin (orcid)0000-0001-7647-792X aut Lassudrie, Malwenn verfasserin (orcid)0000-0002-7004-926X aut Hermabessiere, Ludovic verfasserin (orcid)0000-0002-6775-2480 aut Amzil, Zouher verfasserin aut Soudant, Philippe verfasserin aut Jean, Fred verfasserin (orcid)0000-0002-1132-230X aut Enthalten in Journal of sea research Amsterdam [u.a.] : Elsevier Science, 1996 143, Seite 152-164 Online-Ressource (DE-627)30636140X (DE-600)1497225-6 (DE-576)259484067 1385-1101 nnns volume:143 pages:152-164 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2106 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.90 Ozeanologie Ozeanographie AR 143 152-164 |
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10.1016/j.seares.2018.09.002 doi (DE-627)ELV001181823 (ELSEVIER)S1385-1101(18)30033-9 DE-627 ger DE-627 rda eng 550 DE-600 BIODIV DE-30 fid 38.90 bkl Pousse, Émilien verfasserin aut Modelling paralytic shellfish toxins (PST) accumulation in 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier As other filter-feeders, Crassostrea gigas can concentrate paralytic shellfish toxins (PST) by consuming dinoflagellate phytoplankton species like Alexandrium minutum. Intake of PST in oyster tissues mainly results from feeding processes, i.e. clearance rate, pre-ingestive sorting and ingestion that are directly influenced by environmental conditions (trophic sources, temperature). This study aimed to develop a mechanistic model coupling the kinetics of PST accumulation and bioenergetics in C. gigas based on Dynamic Energy Budget (DEB) theory. For the first time, the Synthesizing Units (SU) concept was applied to formalize the feeding preference of oysters between non-toxic and toxic microalgae. Toxin intake and accumulation were both dependent on the physiological status of oysters. The accumulation was modelled through the dynamics of two toxin compartments: (1) a compartment of ingested but non-assimilated toxins, with labile toxins within the digestive gland eliminated via faeces production; (2) a compartment of assimilated toxins with a rapid detoxification rate (within a few days). Firstly, the DEB-PST model was calibrated using data from two laboratory experiments where oysters have been exposed to A. minutum. Secondly, it was validated using data from another laboratory experiment and from three field surveys carried out in the Bay of Brest (France) from 2012 to 2014. To account for the variability in PST content of A. minutum cells, the saxitoxin (STX) amount per energy units in a toxic algae (ρ PST ) was adjusted for each dataset. Additionally, the effects of PST on the oyster bioenergetics were calibrated during the first laboratory experiment. However, these effects were shown to depend on the strain of A. minutum. Results of this study could be of great importance for monitoring agencies and decision makers to identify risky conditions (e.g. production areas, seawater temperature), to properly assess detoxification step (e.g. duration, modalities) before any commercialization or to improve predictions regarding closing of shellfish areas. Paralytic shellfish toxins (PST) Dynamic Energy Budget (DEB) Modelling Pacific oyster Flye-Sainte-Marie, Jonathan verfasserin aut Alunno-Bruscia, Marianne verfasserin aut Hégaret, Hélène verfasserin aut Rannou, Éric verfasserin aut Pecquerie, Laure verfasserin (orcid)0000-0002-2973-1056 aut Marques, Gonçalo M. verfasserin aut Thomas, Yoann verfasserin aut Castrec, Justine verfasserin aut Fabioux, Caroline verfasserin aut Long, Marc verfasserin (orcid)0000-0001-7647-792X aut Lassudrie, Malwenn verfasserin (orcid)0000-0002-7004-926X aut Hermabessiere, Ludovic verfasserin (orcid)0000-0002-6775-2480 aut Amzil, Zouher verfasserin aut Soudant, Philippe verfasserin aut Jean, Fred verfasserin (orcid)0000-0002-1132-230X aut Enthalten in Journal of sea research Amsterdam [u.a.] : Elsevier Science, 1996 143, Seite 152-164 Online-Ressource (DE-627)30636140X (DE-600)1497225-6 (DE-576)259484067 1385-1101 nnns volume:143 pages:152-164 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2106 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.90 Ozeanologie Ozeanographie AR 143 152-164 |
allfieldsGer |
10.1016/j.seares.2018.09.002 doi (DE-627)ELV001181823 (ELSEVIER)S1385-1101(18)30033-9 DE-627 ger DE-627 rda eng 550 DE-600 BIODIV DE-30 fid 38.90 bkl Pousse, Émilien verfasserin aut Modelling paralytic shellfish toxins (PST) accumulation in 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier As other filter-feeders, Crassostrea gigas can concentrate paralytic shellfish toxins (PST) by consuming dinoflagellate phytoplankton species like Alexandrium minutum. Intake of PST in oyster tissues mainly results from feeding processes, i.e. clearance rate, pre-ingestive sorting and ingestion that are directly influenced by environmental conditions (trophic sources, temperature). This study aimed to develop a mechanistic model coupling the kinetics of PST accumulation and bioenergetics in C. gigas based on Dynamic Energy Budget (DEB) theory. For the first time, the Synthesizing Units (SU) concept was applied to formalize the feeding preference of oysters between non-toxic and toxic microalgae. Toxin intake and accumulation were both dependent on the physiological status of oysters. The accumulation was modelled through the dynamics of two toxin compartments: (1) a compartment of ingested but non-assimilated toxins, with labile toxins within the digestive gland eliminated via faeces production; (2) a compartment of assimilated toxins with a rapid detoxification rate (within a few days). Firstly, the DEB-PST model was calibrated using data from two laboratory experiments where oysters have been exposed to A. minutum. Secondly, it was validated using data from another laboratory experiment and from three field surveys carried out in the Bay of Brest (France) from 2012 to 2014. To account for the variability in PST content of A. minutum cells, the saxitoxin (STX) amount per energy units in a toxic algae (ρ PST ) was adjusted for each dataset. Additionally, the effects of PST on the oyster bioenergetics were calibrated during the first laboratory experiment. However, these effects were shown to depend on the strain of A. minutum. Results of this study could be of great importance for monitoring agencies and decision makers to identify risky conditions (e.g. production areas, seawater temperature), to properly assess detoxification step (e.g. duration, modalities) before any commercialization or to improve predictions regarding closing of shellfish areas. Paralytic shellfish toxins (PST) Dynamic Energy Budget (DEB) Modelling Pacific oyster Flye-Sainte-Marie, Jonathan verfasserin aut Alunno-Bruscia, Marianne verfasserin aut Hégaret, Hélène verfasserin aut Rannou, Éric verfasserin aut Pecquerie, Laure verfasserin (orcid)0000-0002-2973-1056 aut Marques, Gonçalo M. verfasserin aut Thomas, Yoann verfasserin aut Castrec, Justine verfasserin aut Fabioux, Caroline verfasserin aut Long, Marc verfasserin (orcid)0000-0001-7647-792X aut Lassudrie, Malwenn verfasserin (orcid)0000-0002-7004-926X aut Hermabessiere, Ludovic verfasserin (orcid)0000-0002-6775-2480 aut Amzil, Zouher verfasserin aut Soudant, Philippe verfasserin aut Jean, Fred verfasserin (orcid)0000-0002-1132-230X aut Enthalten in Journal of sea research Amsterdam [u.a.] : Elsevier Science, 1996 143, Seite 152-164 Online-Ressource (DE-627)30636140X (DE-600)1497225-6 (DE-576)259484067 1385-1101 nnns volume:143 pages:152-164 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2106 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.90 Ozeanologie Ozeanographie AR 143 152-164 |
allfieldsSound |
10.1016/j.seares.2018.09.002 doi (DE-627)ELV001181823 (ELSEVIER)S1385-1101(18)30033-9 DE-627 ger DE-627 rda eng 550 DE-600 BIODIV DE-30 fid 38.90 bkl Pousse, Émilien verfasserin aut Modelling paralytic shellfish toxins (PST) accumulation in 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier As other filter-feeders, Crassostrea gigas can concentrate paralytic shellfish toxins (PST) by consuming dinoflagellate phytoplankton species like Alexandrium minutum. Intake of PST in oyster tissues mainly results from feeding processes, i.e. clearance rate, pre-ingestive sorting and ingestion that are directly influenced by environmental conditions (trophic sources, temperature). This study aimed to develop a mechanistic model coupling the kinetics of PST accumulation and bioenergetics in C. gigas based on Dynamic Energy Budget (DEB) theory. For the first time, the Synthesizing Units (SU) concept was applied to formalize the feeding preference of oysters between non-toxic and toxic microalgae. Toxin intake and accumulation were both dependent on the physiological status of oysters. The accumulation was modelled through the dynamics of two toxin compartments: (1) a compartment of ingested but non-assimilated toxins, with labile toxins within the digestive gland eliminated via faeces production; (2) a compartment of assimilated toxins with a rapid detoxification rate (within a few days). Firstly, the DEB-PST model was calibrated using data from two laboratory experiments where oysters have been exposed to A. minutum. Secondly, it was validated using data from another laboratory experiment and from three field surveys carried out in the Bay of Brest (France) from 2012 to 2014. To account for the variability in PST content of A. minutum cells, the saxitoxin (STX) amount per energy units in a toxic algae (ρ PST ) was adjusted for each dataset. Additionally, the effects of PST on the oyster bioenergetics were calibrated during the first laboratory experiment. However, these effects were shown to depend on the strain of A. minutum. Results of this study could be of great importance for monitoring agencies and decision makers to identify risky conditions (e.g. production areas, seawater temperature), to properly assess detoxification step (e.g. duration, modalities) before any commercialization or to improve predictions regarding closing of shellfish areas. Paralytic shellfish toxins (PST) Dynamic Energy Budget (DEB) Modelling Pacific oyster Flye-Sainte-Marie, Jonathan verfasserin aut Alunno-Bruscia, Marianne verfasserin aut Hégaret, Hélène verfasserin aut Rannou, Éric verfasserin aut Pecquerie, Laure verfasserin (orcid)0000-0002-2973-1056 aut Marques, Gonçalo M. verfasserin aut Thomas, Yoann verfasserin aut Castrec, Justine verfasserin aut Fabioux, Caroline verfasserin aut Long, Marc verfasserin (orcid)0000-0001-7647-792X aut Lassudrie, Malwenn verfasserin (orcid)0000-0002-7004-926X aut Hermabessiere, Ludovic verfasserin (orcid)0000-0002-6775-2480 aut Amzil, Zouher verfasserin aut Soudant, Philippe verfasserin aut Jean, Fred verfasserin (orcid)0000-0002-1132-230X aut Enthalten in Journal of sea research Amsterdam [u.a.] : Elsevier Science, 1996 143, Seite 152-164 Online-Ressource (DE-627)30636140X (DE-600)1497225-6 (DE-576)259484067 1385-1101 nnns volume:143 pages:152-164 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2106 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.90 Ozeanologie Ozeanographie AR 143 152-164 |
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Pousse, Émilien @@aut@@ Flye-Sainte-Marie, Jonathan @@aut@@ Alunno-Bruscia, Marianne @@aut@@ Hégaret, Hélène @@aut@@ Rannou, Éric @@aut@@ Pecquerie, Laure @@aut@@ Marques, Gonçalo M. @@aut@@ Thomas, Yoann @@aut@@ Castrec, Justine @@aut@@ Fabioux, Caroline @@aut@@ Long, Marc @@aut@@ Lassudrie, Malwenn @@aut@@ Hermabessiere, Ludovic @@aut@@ Amzil, Zouher @@aut@@ Soudant, Philippe @@aut@@ Jean, Fred @@aut@@ |
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author |
Pousse, Émilien |
spellingShingle |
Pousse, Émilien ddc 550 fid BIODIV bkl 38.90 misc Paralytic shellfish toxins (PST) misc Dynamic Energy Budget (DEB) misc Modelling misc Pacific oyster Modelling paralytic shellfish toxins (PST) accumulation in |
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550 DE-600 BIODIV DE-30 fid 38.90 bkl Modelling paralytic shellfish toxins (PST) accumulation in Paralytic shellfish toxins (PST) Dynamic Energy Budget (DEB) Modelling Pacific oyster |
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ddc 550 fid BIODIV bkl 38.90 misc Paralytic shellfish toxins (PST) misc Dynamic Energy Budget (DEB) misc Modelling misc Pacific oyster |
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ddc 550 fid BIODIV bkl 38.90 misc Paralytic shellfish toxins (PST) misc Dynamic Energy Budget (DEB) misc Modelling misc Pacific oyster |
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Modelling paralytic shellfish toxins (PST) accumulation in |
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Pousse, Émilien Flye-Sainte-Marie, Jonathan Alunno-Bruscia, Marianne Hégaret, Hélène Rannou, Éric Pecquerie, Laure Marques, Gonçalo M. Thomas, Yoann Castrec, Justine Fabioux, Caroline Long, Marc Lassudrie, Malwenn Hermabessiere, Ludovic Amzil, Zouher Soudant, Philippe Jean, Fred |
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10.1016/j.seares.2018.09.002 |
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modelling paralytic shellfish toxins (pst) accumulation in |
title_auth |
Modelling paralytic shellfish toxins (PST) accumulation in |
abstract |
As other filter-feeders, Crassostrea gigas can concentrate paralytic shellfish toxins (PST) by consuming dinoflagellate phytoplankton species like Alexandrium minutum. Intake of PST in oyster tissues mainly results from feeding processes, i.e. clearance rate, pre-ingestive sorting and ingestion that are directly influenced by environmental conditions (trophic sources, temperature). This study aimed to develop a mechanistic model coupling the kinetics of PST accumulation and bioenergetics in C. gigas based on Dynamic Energy Budget (DEB) theory. For the first time, the Synthesizing Units (SU) concept was applied to formalize the feeding preference of oysters between non-toxic and toxic microalgae. Toxin intake and accumulation were both dependent on the physiological status of oysters. The accumulation was modelled through the dynamics of two toxin compartments: (1) a compartment of ingested but non-assimilated toxins, with labile toxins within the digestive gland eliminated via faeces production; (2) a compartment of assimilated toxins with a rapid detoxification rate (within a few days). Firstly, the DEB-PST model was calibrated using data from two laboratory experiments where oysters have been exposed to A. minutum. Secondly, it was validated using data from another laboratory experiment and from three field surveys carried out in the Bay of Brest (France) from 2012 to 2014. To account for the variability in PST content of A. minutum cells, the saxitoxin (STX) amount per energy units in a toxic algae (ρ PST ) was adjusted for each dataset. Additionally, the effects of PST on the oyster bioenergetics were calibrated during the first laboratory experiment. However, these effects were shown to depend on the strain of A. minutum. Results of this study could be of great importance for monitoring agencies and decision makers to identify risky conditions (e.g. production areas, seawater temperature), to properly assess detoxification step (e.g. duration, modalities) before any commercialization or to improve predictions regarding closing of shellfish areas. |
abstractGer |
As other filter-feeders, Crassostrea gigas can concentrate paralytic shellfish toxins (PST) by consuming dinoflagellate phytoplankton species like Alexandrium minutum. Intake of PST in oyster tissues mainly results from feeding processes, i.e. clearance rate, pre-ingestive sorting and ingestion that are directly influenced by environmental conditions (trophic sources, temperature). This study aimed to develop a mechanistic model coupling the kinetics of PST accumulation and bioenergetics in C. gigas based on Dynamic Energy Budget (DEB) theory. For the first time, the Synthesizing Units (SU) concept was applied to formalize the feeding preference of oysters between non-toxic and toxic microalgae. Toxin intake and accumulation were both dependent on the physiological status of oysters. The accumulation was modelled through the dynamics of two toxin compartments: (1) a compartment of ingested but non-assimilated toxins, with labile toxins within the digestive gland eliminated via faeces production; (2) a compartment of assimilated toxins with a rapid detoxification rate (within a few days). Firstly, the DEB-PST model was calibrated using data from two laboratory experiments where oysters have been exposed to A. minutum. Secondly, it was validated using data from another laboratory experiment and from three field surveys carried out in the Bay of Brest (France) from 2012 to 2014. To account for the variability in PST content of A. minutum cells, the saxitoxin (STX) amount per energy units in a toxic algae (ρ PST ) was adjusted for each dataset. Additionally, the effects of PST on the oyster bioenergetics were calibrated during the first laboratory experiment. However, these effects were shown to depend on the strain of A. minutum. Results of this study could be of great importance for monitoring agencies and decision makers to identify risky conditions (e.g. production areas, seawater temperature), to properly assess detoxification step (e.g. duration, modalities) before any commercialization or to improve predictions regarding closing of shellfish areas. |
abstract_unstemmed |
As other filter-feeders, Crassostrea gigas can concentrate paralytic shellfish toxins (PST) by consuming dinoflagellate phytoplankton species like Alexandrium minutum. Intake of PST in oyster tissues mainly results from feeding processes, i.e. clearance rate, pre-ingestive sorting and ingestion that are directly influenced by environmental conditions (trophic sources, temperature). This study aimed to develop a mechanistic model coupling the kinetics of PST accumulation and bioenergetics in C. gigas based on Dynamic Energy Budget (DEB) theory. For the first time, the Synthesizing Units (SU) concept was applied to formalize the feeding preference of oysters between non-toxic and toxic microalgae. Toxin intake and accumulation were both dependent on the physiological status of oysters. The accumulation was modelled through the dynamics of two toxin compartments: (1) a compartment of ingested but non-assimilated toxins, with labile toxins within the digestive gland eliminated via faeces production; (2) a compartment of assimilated toxins with a rapid detoxification rate (within a few days). Firstly, the DEB-PST model was calibrated using data from two laboratory experiments where oysters have been exposed to A. minutum. Secondly, it was validated using data from another laboratory experiment and from three field surveys carried out in the Bay of Brest (France) from 2012 to 2014. To account for the variability in PST content of A. minutum cells, the saxitoxin (STX) amount per energy units in a toxic algae (ρ PST ) was adjusted for each dataset. Additionally, the effects of PST on the oyster bioenergetics were calibrated during the first laboratory experiment. However, these effects were shown to depend on the strain of A. minutum. Results of this study could be of great importance for monitoring agencies and decision makers to identify risky conditions (e.g. production areas, seawater temperature), to properly assess detoxification step (e.g. duration, modalities) before any commercialization or to improve predictions regarding closing of shellfish areas. |
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title_short |
Modelling paralytic shellfish toxins (PST) accumulation in |
remote_bool |
true |
author2 |
Flye-Sainte-Marie, Jonathan Alunno-Bruscia, Marianne Hégaret, Hélène Rannou, Éric Pecquerie, Laure Marques, Gonçalo M. Thomas, Yoann Castrec, Justine Fabioux, Caroline Long, Marc Lassudrie, Malwenn Hermabessiere, Ludovic Amzil, Zouher Soudant, Philippe Jean, Fred |
author2Str |
Flye-Sainte-Marie, Jonathan Alunno-Bruscia, Marianne Hégaret, Hélène Rannou, Éric Pecquerie, Laure Marques, Gonçalo M. Thomas, Yoann Castrec, Justine Fabioux, Caroline Long, Marc Lassudrie, Malwenn Hermabessiere, Ludovic Amzil, Zouher Soudant, Philippe Jean, Fred |
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doi_str |
10.1016/j.seares.2018.09.002 |
up_date |
2024-07-06T20:30:12.103Z |
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