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Registros recuperados: 25
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Adult-mediated connectivity affects inferences on population dynamics and stock assessment of nursery-dependent fish populations ArchiMer
Archarnbault, Benoit; Le Pape, Olivier; Baulier, Loic; Vermard, Youen; Veron, Matthieu; Rivot, Etienne.
We explore how alternative hypotheses on the degree of mixing among local subpopulations affect statistical inferences on the dynamics and stock assessment of a harvested flatfish population, namely, the common sole population in the Eastern Channel (ICES area VIId). The current paradigm considers a single, well-mixed, spatially homogeneous population with juveniles from all coastal nursery grounds along the French and UK coasts that contribute to a single adult population and one pool of eggs. Based on the available data and ecological knowledge, we developed a spatial Bayesian integrated life-cycle model that consists of three subpopulations (one near the UK coast and two near the French coast, denoted UK, West FR and East FR, respectively) supported by...
Tipo: Text Palavras-chave: Solea solea; Spatial life-cycle model; Coastal nurseries; Connectivity; Stock assessment; Hierarchical bayesian model.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00333/44430/44231.pdf
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Analysis of species associations in deep-sea fisheries off the British Isles from an industry haul-by-haul database ArchiMer
Baulier, Loic; Pawlowski, Lionel; Lorance, Pascal; Trenkel, Verena.
Tipo: Text
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00018/12951/9926.pdf
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Avis 2014 sur le nombre de licences de pêche des navires crevettiers en Guyane ArchiMer
Baulier, Loic; Biseau, Alain; Blanchard, Fabian.
Tipo: Text
Ano: 2014 URL: https://archimer.ifremer.fr/doc/00184/29556/27891.pdf
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Avis 2014 sur le TAC du stock de crevettes de Guyane ArchiMer
Baulier, Loic; Blanchard, Fabian; Biseau, Alain.
Tipo: Text
Ano: 2014 URL: https://archimer.ifremer.fr/doc/00187/29782/79228.pdf
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Avis 2017 sur l’état du stock de crevette Guyane ArchiMer
Baulier, Loic; Biseau, Alain; Blanchard, Fabian.
L'évaluation du stock de crevettes café (Farfantepenaeus subtilis) de Guyane a été réalisée à partir des données de débarquement par catégories commerciales des chalutiers guyanais, à l'aide d'un modèle structuré en âge (VPA) paramétré séparément pour les mâles et les femelles. Ce modèle a permis de reconstituer les séries des effectifs et mortalités par pêche mensuels aux âges depuis 1989 jusqu'au mois de juin 2016. L'application d'un modèle de recrutement par recrue a ensuite permis de poser un diagnostic sur le niveau d'exploitation des deux composantes du stock. Ce stock, dont la biomasse a fortement diminué depuis le début de son exploitation, demeure à des niveaux de biomasse bas. L’analyse montre une légère surexploitation de croissance en ce qui...
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Ano: 2017 URL: https://archimer.ifremer.fr/doc/00373/48371/79230.pdf
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Avis sur le nombre de licences de pêche des navires crevettiers pour l'année 2015 ArchiMer
Baulier, Loic; Blanchard, Fabian; Biseau, Alain.
Avis sur le nombre de licences de pêche à mettre à disposition des navires crevettiers en Guyane pour l'année 2015.
Tipo: Text
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00280/39140/37695.pdf
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Avis sur le TAC 2015 du stock de crevettes de Guyane ArchiMer
Baulier, Loic; Blanchard, Fabian; Biseau, Alain.
Avis de l’Ifremer concernant le total autorisé de capture (TAC) pour le stock de crevettes de Guyane en 2015.
Tipo: Text
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00255/36629/79391.pdf
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Avis sur les licences pour la pêche au vivaneau ArchiMer
Tagliarolo, Morgana; Baulier, Loic; Blanchard, Fabian.
Tipo: Text
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00480/59182/79402.pdf
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Can fisheries-induced evolution shift reference points for fisheries management? ArchiMer
Heino, Mikko; Baulier, Loic; Boukal, David S.; Ernande, Bruno; Johnston, Fiona D.; Mollet, Fabian M.; Pardoe, Heidi; Therkildsen, Nina O.; Uusi-heikkila, Silva; Vainikka, Anssi; Arlinghaus, Robert; Dankel, Dorothy J.; Dunlop, Erin S.; Eikeset, Anne Maria; Enberg, Katja; Engelhard, Georg; Jorgensen, Christian; Laugen, Ane; Matsumura, Shuichi; Nussle, Sebastien; Urbach, Davnah; Whitlock, Rebecca; Rijnsdorp, Adriaan D.; Dieckmann, Ulf.
Biological reference points are important tools for fisheries management. Reference points are not static, butmay change when a population's environment or the population itself changes. Fisheries-induced evolution is one mechanism that can alter population characteristics, leading to "shifting" reference points by modifying the underlying biological processes or by changing the perception of a fishery system. The former causes changes in "true" reference points, whereas the latter is caused by changes in the yardsticks used to quantify a system's status. Unaccounted shifts of either kind imply that reference points gradually lose their intended meaning. This can lead to increased precaution, which is safe, but potentially costly. Shifts can also occur in...
Tipo: Text Palavras-chave: Biological reference points; Fisheries-induced evolution; Fisheries management; Population dynamics; Precautionary approach; Uncertainty.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00151/26228/24302.pdf
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Determinism of Temporal Variability in Size at Maturation of Sardine Sardina pilchardus in the Bay of Biscay ArchiMer
Véron, Matthieu; Duhamel, Erwan; Bertignac, Michel; Pawlowski, Lionel; Huret, Martin; Baulier, Loic.
Age and size at maturation appear as key parameters governing the dynamics of a population as they affect growth rate, fecundity, and survival. The expression of such life history traits is determined by genetic make-up and modulated by environmental factors mainly through phenotypic plasticity. Moreover, fishing, besides decreasing population size and changing demographic composition can alter allelic frequencies through fisheries-induced evolution by selecting for some particular traits. In the Bay of Biscay, a decreasing trend in both sardine body condition and size-at-age has recently been pointed out at the population level. The Probabilistic Maturation Reaction Norm (PMRN) approach was applied to help disentangle phenotypic plasticity and genetic...
Tipo: Text Palavras-chave: Fisheries-induced evolution; Body condition; Phenotypic plasticity; Maturation; Growth; Sardina pilchardus; Bay of biscay.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00660/77203/78637.pdf
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Diagnostic portant sur le stock de vivaneau rouge de Guyane Française ArchiMer
Baulier, Loic; Blanchard, Fabian; Biseau, Alain.
Diagnostic du stock de vivaneau rouge (Lutjanus purpureus) en Guyane, à la demande de la Direction de la Mer.
Tipo: Text
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00326/43767/79495.pdf
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Effet du changement climatique sur le stock guyanais de crevettes pénéïdes. Rapport final du projet PENECLIM ArchiMer
Magraoui, Amira; Baulier, Loic; Blanchard, Fabian.
Recruitment of the tropical shrimp farfantepeneus subtilis is declining, as well as the stock. Fishing pressure does not seem to be the cause of this situation. Changes in various environmental factors are observed. This work brings some statistical links between these environmental changes and the decrease of the recruitment.
Tipo: Text
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00249/36051/34596.pdf
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Evaluation de l’impact potentiel de la prospection sismique pétrolière sur les rendements de la pêcherie de vivaneau rouge (Lutjanus purpureus) en Guyane ArchiMer
Baulier, Loic; Blanchard, Fabian.
L’existence d’un impact de la prospection sismique pétrolière sur les rendements journaliers des pêcheurs Vénézuéliens ciblant le vivaneau rouge (Lutjanus purpureus) au large de la Guyane au cours de la période 2002–2012 a été évaluée au cours de cette étude. Les informations recueillies dans les fiches de pêche ont permis de tenir compte de facteurs tels que l’effort de pêche, le secteur et la période de pêche ainsi que la profondeur prospectée. Une fois ces différentes influences prises en considération, l’effet de la co-occurrence d’une campagne de prospection a été testé. Les analyses ont révélé des effets des campagnes de prospection positifs ou négatifs mais non significatifs statistiquement à deux exceptions près avec. Les deux seuls résultats...
Tipo: Text
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00176/28710/27162.pdf
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Evaluation du stock de crevettes pénéides de Guyane et propositions de gestion ArchiMer
Baulier, Loic; Biseau, Alain; Blanchard, Fabian.
Avis sur l'état du stock de crevettes pénéides de Guyane en vue de fixer un TAC pour l'année 2016.
Tipo: Text
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00326/43766/43323.pdf
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Evaluation du stock de crevettes pénéides de Guyane et recommandations de gestion pour 2018 ArchiMer
Tagliarolo, Morgana; Baulier, Loic.
Tipo: Text
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00426/53755/54645.pdf
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Evolutionary impact assessment: accounting for evolutionary consequences of fishing in an ecosystem approach to fisheries management ArchiMer
Laugen, Ane; Engelhard, Georg; Whitlock, Rebecca; Arlinghaus, Robert; Dankel, Dorothy J.; Dunlop, Erin S.; Eikeset, Anne M.; Enberg, Katja; Jorgensen, Christian; Matsumura, Shuichi; Nussle, Sebastien; Urbach, Davnah; Baulier, Loic; Boukal, David S.; Ernande, Bruno; Johnston, Fiona D.; Mollet, Fabian; Pardoe, Heidi; Therkildsen, Nina O.; Uusi-heikkilae, Silva; Vainikka, Anssi; Heino, Mikko; Rijnsdorp, Adriaan D.; Dieckmann, Ulf.
Managing fisheries resources to maintain healthy ecosystems is one of the main goals of the ecosystem approach to fisheries (EAF). While a number of international treaties call for the implementation of EAF, there are still gaps in the underlying methodology. One aspect that has received substantial scientific attention recently is fisheries-induced evolution (FIE). Increasing evidence indicates that intensive fishing has the potential to exert strong directional selection on life-history traits, behaviour, physiology, and morphology of exploited fish. Of particular concern is that reversing evolutionary responses to fishing can be much more difficult than reversing demographic or phenotypically plastic responses. Furthermore, like climate change, multiple...
Tipo: Text Palavras-chave: Ecosystem approach to fisheries; Ecosystem services; Fisheries yield; Fisheries-induced evolution; Impact assessment; Sustainable fisheries.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00124/23522/21409.pdf
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Habitat suitability for juvenile common sole (Solea solea, L.) in the Bay of Biscay (France): A quantitative description using indicators based on epibenthic fauna ArchiMer
Le Pape, Olivier; Baulier, Loic; Cloarec, Aurélie; Martin, Jocelyne; Le Loch, Francois; Desaunay, Yves.
This study describes the spatial distribution of young-of-the-year common sole based on beam trawl surveys conducted in late summer in the coastal and estuarine parts of the Bay of Biscay (France). Previous studies showed that habitat suitability for juvenile common sole varies according to physical factors and notably bathymetry and sediment structure. Nevertheless, the use of these descriptors alone to model habitat suitability led to considerable unexplained variability in juvenile common sole distribution. Hence, the epibenthic macro- and megafauna collected during beam trawl surveys was taken into account to improve models of habitat suitability for these juvenile flatfish. Ecotrophic guilds based on life traits (behaviour, mobility and feeding) were...
Tipo: Text Palavras-chave: Bay of Biscay; Ecotrophic guilds; Epibenthic fauna; Habitat suitability models; Nursery ground; Solea solea.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-2402.pdf
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Rapport ObsDEB - Estimation 2014 des efforts de pêche et des productions dans les régions Méditerranée continentale, La Réunion, Martinique, Guadeloupe et Guyane. ArchiMer
Blanchard, Fabian; Lespagnol, Patrick; Weiss, Jerome; Demaneche, Sebastien; Bourjea, Jerome; Evano, Hugues; Reynal, Lionel; Guyader, Olivier; Baulier, Loic; Merrien, Claude; Leblond, Emilie; Daures, Fabienne; Berthou, Patrick; Leblond, Samuel.
Le programme d’observation des marées au débarquement, appelé « ObsDEB », contribue à l’estimation de l’effort de pêche et des captures des flottes de pêche françaises. Il vise tout particulièrement les flottilles de petite pêche côtière et procède à la collecte des informations requises selon un plan d’échantillonnage adapté à chaque région suivie. Ce rapport est le Rapport annuel de Convention DPMA-Ifremer 2015 et présente les estimations 2014 des efforts de pêche et des productions dans les régions Méditerranée continentale, La Réunion, Martinique, Guadeloupe et Guyane.
Tipo: Text
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00326/43714/43159.pdf
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Rapport OBSDEB. Estimation 2015 des efforts de pêche et des productions dans les régions Méditerranée continentale, La Réunion, Martinique, Guadeloupe et Guyane ArchiMer
Weiss, Jerome; Lespagnol, Patrick; Demaneche, Sebastien; Leonardi, Sophie; Bourjea, Jerome; Evano, Hugues; Reynal, Lionel; Guyader, Olivier; Baulier, Loic; Blanchard, Fabian; Berthou, Patrick; Daures, Fabienne; Leblond, Emilie; Merrien, Claude; Leblond, Samuel.
Le programme d’observation des marées au débarquement, appelé « ObsDEB », contribue à l’estimation de l’effort de pêche et des captures des flottes de pêche françaises. Il vise tout particulièrement les flottilles de petite pêche côtière et procède à la collecte des informations requises selon un plan d’échantillonnage adapté à chaque région suivie. Ce rapport est le Rapport annuel de Convention DPMA-Ifremer 2015 et présente les estimations 2015 des efforts de pêche et des productions dans les régions Méditerranée continentale, La Réunion, Martinique, Guadeloupe et Guyane.
Tipo: Text
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00360/47133/47082.pdf
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Rapport OBsDEB. Estimation 2016 des efforts de pêche et des productions dans les régions Méditerranée continentale, La Réunion, Martinique, Guadeloupe et Guyane. Rapport annuel Convention DPMA-Ifremer 2016 ArchiMer
Weiss, Jerome; Lespagnol, Patrick; Demaneche, Sebastien; Leonardi, Sophie; Bourjea, Jerome; Evano, Hugues; Reynal, Lionel; Guyader, Olivier; Baulier, Loic; Mansuy, Emmanuel; Berthou, Patrick; Daures, Fabienne; Leblond, Emilie; Merrien, Claude; Rostiaux, Emilie; Le Blond, Samuel.
Le programme d’observation des marées au débarquement, appelé « ObsDEB », contribue à l’estimation de l’effort de pêche et des captures des flottes de pêche françaises. Il vise tout particulièrement les flottilles de petite pêche côtière et procède à la collecte des informations requises selon un plan d’échantillonnage adapté à chaque région suivie. Ce rapport est le Rapport annuel de Convention DPMA-Ifremer 2016 et présente les estimations 2016 des efforts de pêche et des productions dans les régions Méditerranée continentale, La Réunion, Martinique, Guadeloupe et Guyane.
Tipo: Text
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00414/52556/53393.pdf
Registros recuperados: 25
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