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Auteur Freon, P.; Sueiro, J.C.; Iriarte, F.; Evar, O.F.M.; Landa, Y.; Mittaine, J.F.; Bouchon, M. url  doi
openurl 
  Titre Harvesting for food versus feed : a review of Peruvian fisheries in a global context Type Article scientifique
  Année 2014 Publication Revue Abrégée Reviews in Fish Biology and Fisheries  
  Volume 24 Numéro 1 Pages (down) 381-398  
  Mots-Clés Feed fish; Fisheries management; Food security; Politico-socio-economic processes; Seafood; Sustainable development  
  Résumé Peru is the top exporter of fishmeal and fish oil (FMFO) worldwide and is responsible for half and a third of global production, respectively. Landings of “anchoveta” (Engraulis ringens) are used nearly exclusively for FMFO production, despite a proactive national food policy aimed at favoring the direct human consumption of this inexpensive species. It may be surprising that in a country where malnutrition and caloric deficit constitute major issues, a low-priced and highly nutritious fish such as anchovy does not have stronger domestic demand as a food fish. Here, we review and assess eight potential politico-socio-economic processes that can explain this situation. The main explanation are dietary habits, the preference for broiler and the higher profit from anchovy sold as feed fish compared to its use as a food fish due to historically high FMFO prices, boosted by an increasing demand for aquaculture in a context of finite forage and trash fish resources. In addition, the recent introduction of an individual quota system has shifted bargaining power from processors to fishers, thereby increasing competition for the raw material. This competition results in an increase in anchovy prices offered by the feed fish industry due to its onshore processing overcapacity, which is detrimental to the food fish industry. In the end, although the dominant use of anchovy for fish feed is largely explained by integrating these market mechanisms and other minor ones, this use raises other issues, such as rent redistribution through public policies, employment, equitability and utility (low social costs), and resource management (threats to ecosystems or global change). Different policy scenarios are proposed in relation to these issues.  
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  ISSN 0960-3166 ISBN Médium  
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  Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 1150  
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Auteur Navarro, J.; Albo-Puigserver, M.; Coll, M.; Saez, R.; Forero, M.G.; Kutcha, R. url  doi
openurl 
  Titre Isotopic discrimination of stable isotopes of nitrogen (δ15N) and carbon (δ13C) in a host-specific holocephalan tapeworm Type Article scientifique
  Année 2014 Publication Revue Abrégée Journal of Helminthology  
  Volume 88 Numéro 03 Pages (down) 371-375  
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  ISSN 0022-149x, 1475-2697 ISBN Médium  
  Région Expédition Conférence  
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  Numéro d'Appel LL @ pixluser @ collection 384  
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Auteur Ndour, I.; Loc'h, F.L.; Kantoussan, J.; Thiaw, M.; Diadhiou, H.D.; Ecoutin, J.M.; Morais, L.T. de; Thiaw, O.T. url  doi
openurl 
  Titre Changes in the trophic structure, abundance and species diversity of exploited fish assemblages in the artisanal fisheries of the northern coast, Senegal, West Africa Type Article scientifique
  Année 2014 Publication Revue Abrégée African Journal of Marine Science  
  Volume 36 Numéro 3 Pages (down) 361-368  
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  Résumé This work investigates the effects of changes in both fishing pressure and the environment on the trophic dynamics, abundance and diversity of species in the artisanal commercial fisheries off the northern coast of Senegal. Using artisanal commercial fishing data (provided by the Centre for Oceanographic Research of Dakar-Thiaroye [CRODT] in Senegal), we identify changes in the catch per unit effort, mean trophic level, biomass trophic spectrum and species diversity between two fishing periods (1990–1999 and 2000–2009). Decreases in mean trophic level, the biomass of high trophic level species and indices of species diversity between 1990 and 2009 were observed in commercial catches. These decreases were then related to changes in fishing pressure, fishing strategy and the combined effects of fishing and environmental factors (as derived from satellite observations). This paper helps to better inform the management of fisheries resources by providing decision makers with more effective biological indicators that incorporate the effects of fishing pressure and environmental change and that are applicable at local, regional and global scales.  
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  ISSN 1814-232x ISBN Médium  
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  Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 1201  
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Auteur Merino, G.; Barange, M.; Fernandes, J.A.; Mullon, C.; Cheung, W.; Trenkel, V.; Lam, V. url  doi
openurl 
  Titre Estimating the economic loss of recent North Atlantic fisheries management Type Article scientifique
  Année 2014 Publication Revue Abrégée Progress in Oceanography  
  Volume Numéro Pages (down) 314-323  
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  Résumé It is accepted that world’s fisheries are not generally exploited at their biological or their economic optimum. Most fisheries assessments focus on the biological capacity of fish stocks to respond to harvesting and few have attempted to estimate the economic efficiency at which ecosystems are exploited. The latter is important as fisheries contribute considerably to the economic development of many coastal communities. Here we estimate the overall potential economic rent for the fishing industry in the North Atlantic to be B€ 12.85, compared to current estimated profits of B€ 0.63. The difference between the potential and the net profits obtained from North Atlantic fisheries is therefore B€ 12.22. In order to increase the profits of North Atlantic fisheries to a maximum, total fish biomass would have to be rebuilt to 108 Mt (2.4 times more than present) by reducing current total fishing effort by 53%. Stochastic simulations were undertaken to estimate the uncertainty associated with the aggregate bioeconomic model that we use and we estimate the economic loss NA fisheries in a range of 2.5 and 32 billion of euro. We provide economic justification for maintaining or restoring fish stocks to above their MSY biomass levels. Our conclusions are consistent with similar global scale studies.  
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  Éditeur de collection Titre de collection North Atlantic Ecosystems, the role of climate and anthropogenic forcing on their structure and function Titre de collection Abrégé  
  Volume de collection 129, Part B Numéro de collection Edition  
  ISSN 0079-6611 ISBN Médium  
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  Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 1200  
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Auteur Minguez, L.; Farcy, E.; Ballandonne, C.; Lepailleur, A.; Serpentini, A.; Lebel, J.M.; Bureau, R.; Halm-Lemeille, M.P. url  doi
openurl 
  Titre Acute toxicity of 8 antidepressants: What are their modes of action? Type Article scientifique
  Année 2014 Publication Revue Abrégée Chemosphere  
  Volume 108 Numéro Pages (down) 314-319  
  Mots-Clés Daphnia magna; Haliotis tuberculata; Lysosomotropism; Multi-approach; Narcosis; Pharmaceutical; assessment; cationic amphiphilic drugs; cause foot detachment; cell-cultures; cytotoxicity; ecotoxicology; fluoxetine; hemocytes; human pharmaceuticals; pi interactions; water  
  Résumé Currently, the hazard posed by pharmaceutical residues is a major concern of ecotoxicology. Most of the antidepressants belong to a family named the Cationic Amphipathic Drugs known to have specific interactions with cell membranes. The present study assessed the impact of eight antidepressants belonging to selective serotonin reuptake inhibitors or serotonin norepinephrine reuptake inhibitors by the combination of multi-approaches (in vivo, in vitro, in silico) and gives some insights on the mode of action for these molecules. Antidepressants were from the most to the least toxic compound for Daphnia magna: Sertraline (EC50 = 1.15 mg L-1) > Clomipramine (2.74 mg L-1)> Amitriptyline (4.82 mg L-1)> Fluoxetine (5.91 mg L-1) > Paroxetine (6.24 mg L-1) > Mianserine (7.81 mg L-1) > Citalopram (30.14 mg L-1) and Venlafaxine (141.28 mg L-1). These acute toxicities were found correlated to Log K, coefficients (R = 0.93, p < 0.001) and to cytotoxicity assessed on abalone hemocytes through the neutral red uptake assay (R = 0.96, p < 0.001). If narcosis as mode of action is typically expected during acute ecotoxicity bioassays, we showed by molecular modeling that particular interactions can exist between antidepressants and phosphatidylcholine, a major component of cell membranes, leading to a more specific mode of action corresponding to a potential acidic hydrolysis of ester functions. (C) 2014 Elsevier Ltd. All rights reserved.  
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  Langue English Langue du Résumé Titre Original  
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  ISSN 0045-6535 ISBN Médium  
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  Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 440  
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