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Auteur (up) Arzul, i.; Chollet, b.; Boyer, s.; Bonnet, d.; Gaillard, j.; Baldi, y.; Robert, m.; Joly, j. p.; Garcia, c.; Bouchoucha, m.
Titre Contribution to the understanding of the cycle of the protozoan parasite Marteilia refringens Type Article scientifique
Année 2013 Publication Revue Abrégée Parasitology
Volume Numéro Pages 1-14
Mots-Clés ,; , parasite life cycle, zooplankton; bivalves, copepods,
Résumé SUMMARY The paramyxean parasite Marteilia refringens infects several bivalve species including European flat oysters Ostrea edulis and Mediterranean mussels Mytilus galloprovincialis. Sequence polymorphism allowed definition of three parasite types ‘M’, ‘O’ and ‘C’ preferably detected in oysters, mussels and cockles respectively. Transmission of the infection from infected bivalves to copepods Paracartia grani could be experimentally achieved but assays from copepods to bivalves failed. In order to contribute to the elucidation of the M. refringens life cycle, the dynamics of the infection was investigated in O. edulis, M. galloprovincialis and zooplankton over one year in Diana lagoon, Corsica (France). Flat oysters appeared non-infected while mussels were infected part of the year, showing highest prevalence in summertime. The parasite was detected by PCR in zooplankton particularly after the peak of prevalence in mussels. Several zooplanktonic groups including copepods, Cladocera, Appendicularia, Chaetognatha and Polychaeta appeared PCR positive. However, only the copepod species Paracartia latisetosa showed positive signal by in situ hybridization. Small parasite cells were observed in gonadal tissues of female copepods demonstrating for the first time that a copepod species other than P. grani can be infected with M. refringens. Molecular characterization of the parasite infecting mussels and zooplankton allowed the distinguishing of three Marteilia types in the lagoon.
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Volume de collection Numéro de collection Edition
ISSN 1469-8161 ISBN Médium
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Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 502
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Auteur (up) Avadi, A.; Freon, P.; Quispe, I.
Titre Environmental assessment of Peruvian anchoveta food products : is less refined better ? Type Article scientifique
Année 2014 Publication Revue Abrégée International Journal of Life Cycle Assessment
Volume 19 Numéro 6 Pages 1276-1293
Mots-Clés Cold chain; Engraulis ringens; Frozen, canned and cured fish; Life cycle assessment; Peru
Résumé Life cycle assessments (LCAs) of various anchovy (anchoveta) direct human consumption products processed in Peru were carried out, to evaluate their relative environmental performance as alternative products to enhance nutrition of communities with low access to fish products in the country. LCA was carried out for fresh, frozen, canned, salted and cured anchoveta products, both at plant gate and featuring local and national distribution over non-refrigerated, chilled and fully refrigerated distribution chain. The functional unit used was 1 kg of fish in the final product. Results demonstrate that, in environmental terms, more-refined products (cured and canned anchoveta products) represent a much higher burden than less- refined products (fresh, frozen and salted). Although this is a likely result, the magnitude of this difference (4 to 27 times when expressed as an environmental single score) is higher than expected and had not been quantified before for salted and cured products, as far as we know. This difference is mainly due to differences in energy consumption between types of products. Furthermore, cured and salted products feature larger biotic resource use, when calculated based on the whole fish equivalent, due to higher processing losses/discards. The relevance of taking into account the different transportation and storage needs is highlighted. For those products requiring refrigerated transportation and storage, over a national distribution chain, those activities increase the overall environmental impacts of the products by 55 % (fresh chilled) to 67 % (frozen). However, such an increase does not worsen the environmental performance of fresh and frozen products in comparison to the energy-intensive canned and cured products. It is concluded that a more sustainability-oriented analysis, including the social and economic pillars of sustainability, is required towards decision-making involving promotion of either product for addressing nutritional deficiencies in Peru.
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Volume de collection Numéro de collection Edition
ISSN 0948-3349 ISBN Médium
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Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 1144
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Auteur (up) Baudrier, J.; Lefebvre, A.; Galgani, F.; Saraux, C.; Doray, M.
Titre Optimising French fisheries surveys for marine strategy framework directive integrated ecosystem monitoring Type Article scientifique
Année 2018 Publication Revue Abrégée Marine Policy
Volume 94 Numéro Pages 10-19
Mots-Clés Fisheries surveys; Integrated ecosystem monitoring; Marine management, Data Collection Framework; Marine Strategy Framework Directive; Monitoring programme
Résumé The French initial assessment of the Marine Strategy Framework Directive (MSFD) highlighted the lack of reliable data concerning offshore areas. During the planning of the monitoring programmes, the scientists therefore proposed to partially cover this gap by using existing fisheries research vessel surveys deployed for the purposes of the Common Fisheries Policy (CFP). This paper describes ways of improving the effectiveness of these surveys and making them better suited to delivering the information needed for the MSFD. The process took two years and became operational at the beginning of the year 2016. Testing phases from October 2013 to August 2015 had to be organized to fit within the ongoing fisheries tasks without significantly increasing the workload in terms of both time and human resources. Six fisheries research surveys henceforth collect new data, with or without additional sampling techniques. Specific examples are given with litter and hydrological data which will be used to assess the environmental status of French marine waters. The paper also identifies certain limitations regarding this approach. This French experiment enabled more efficient and effective use of current data collection efforts, while optimising vessel time and implementing an ecosystem approach in collecting data for fisheries management.
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ISSN 0308-597x ISBN Médium
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Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 2357
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Auteur (up) Boillot, C.; Martinez Bueno, M.J.; Munaron, D.; LE DREAU, M.; Mathieu, O.; David, A.; Fenet, H.; Casellas, C.; Gomez, E.
Titre In vivo exposure of marine mussels to carbamazepine and 10-hydroxy-10,11-dihydro-carbamazepine: Bioconcentration and metabolization Type Article scientifique
Année 2015 Publication Science of The Total Environment Revue Abrégée
Volume 532 Numéro Pages 564-570
Mots-Clés Carbamazepine; 10-Hydroxy-10,11-dihydro-carbamazepine; Metabolites; Marine environment; M. galloprovincialis; Bioconcentration
Résumé Aquatic organisms are exposed to pharmaceuticals present in natural waters, but few data are available on the accumulation of these substances in such organisms. The present study evaluated the in vivo bioconcentration of two anticonvulsants – carbamazepine (CBZ) and 10-hydroxy-10,11-dihydro-carbamazepine (10OH) – in marine mussels (Mytilus galloprovincialis) exposed to nominal 10 μg L− 1 concentrations for one week. The bioconcentration factors (BCFs) were 3.9 and 4.5 L kg− 1 dry weight (dw) for CBZ and 10OH, respectively. CBZ accumulation reached an average tissue concentration of 29.3 ± 4.8 ng g− 1 dw, and 10OH accumulated up to 40.9 ± 4.6 ng g− 1 dw in tissues within one week, showing first-order kinetics. BCF obtained with linear QSAR models correctly estimated the CBZ bioconcentration and overestimated the 10OH bioconcentration to some extent. The detection of two metabolites (carbamazepine-10,11-epoxide and acridine) among the five sought suggested an active metabolism for CBZ. In contrast, none of the 10OH metabolites were detected in mussels exposed to 10OH. CBZ showed higher accumulation in the digestive gland, where some relevant metabolites were detected, than in other studied tissues. The implication of those findings on field biomonitoring is discussed.
Adresse Department of Medical Pharmacology and Toxicology, Lapeyronie Hospital, Montpellier, France
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Editeur Elsevier BV Lieu de Publication Éditeur
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Volume de collection Numéro de collection Edition
ISSN 0048-9697 ISBN Médium
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Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ 38243 collection 1228
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Auteur (up) Borsa, P.; Durand, J.D.; Shen, K.N.; Arlyza, I.S.; Solihin, D.D.; Berrebi, P.
Titre Himantura tutul sp nov (Myliobatoidei: Dasyatidae), a new ocellated whipray from the tropical Indo-West Pacific, described from its cytochrome-oxidase I gene sequence Type Article scientifique
Année 2013 Publication Revue Abrégée Comptes Rendus Biologies
Volume 336 Numéro 2 Pages 82-92
Mots-Clés Himantura leoparda, New species, Molecular taxonomy, COI, Cytochrome b; myliobatiformes dasyatidae, conservation, fisheries, indonesia, sharks,; rays, elasmobranchs, management, taxonomy, barcode
Résumé It has been previously established that the Leopard Whipray, Himantura leoparda, consists of two genetically isolated, cryptic species, provisionally designated as 'Cluster 1' and 'Cluster 4' (Arlyza et al., Mol. Phylogenet. Evol. 65 (2013) [11). Here, we show that the two cryptic species differ by the spotting patterns on the dorsal surface of adults: Cluster-4 individuals tend to have larger-ocellated spots, which also more often have a continuous contour than Cluster-1 individuals. We show that H. leopard a's holotype has the typical larger-ocellated spot pattern, designating Cluster 4 as the actual H. leoparda. The other species (Cluster 1) is described as Himantura tutul sp. nov. on the basis of the nucleotide sequence of a 655-base pair fragment of its cytochrome-oxidase I gene (GENBANK accession No. JX263335). Nucleotide synapomorphies at this locus clearly distinguish H. tutul sp. nov. from all three other valid species in the H. uarnak species complex, namely H. leoparda, H. uarnak, and H. undulata. H. tutul sp. nov. has a wide distribution in the Indo-West Pacific, from the shores of eastern Africa to the Indo-Malay archipelago. H. leoparda under its new definition has a similarly wide Indo-West Pacific distribution. (C) 2013 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
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Langue English Langue du Résumé Titre Original
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Volume de collection Numéro de collection Edition
ISSN 1631-0691 ISBN Médium
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Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 624
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