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| Registros recuperados: 40 | |
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| Rochet, Marie-joelle; Trenkel, Verena; Bellail, Robert; Coppin, Franck; Le Pape, Olivier; Mahe, Jean-claude; Morin, Jocelyne; Poulard, Jean-charles; Schlaich, Ivan; Souplet, Arnauld; Verin, Yves; Bertrand, Jacques. |
| We present a method for combining individual indicator results into a comprehensive diagnostic of fishing impacts on fish populations and communities. A conceptual framework for interpreting combined trends in a set of simple indicators is proposed, relying beforehand on qualitative expectations anchored in ecological theory. The initial state of the community is first assessed using published information. Which combinations of trends are acceptable or undesirable is decided, depending on the initial status. The indicators are then calculated from a time-series and their time trends are estimated as the slopes of linear models. Finally, the test results are combined within the predefined framework, providing a diagnostic on the dynamics of fishing impacts... |
| Tipo: Text |
Palavras-chave: Scientific surveys; Multispecies fisheries; Indicators; Ecosystem approach to fisheries management. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-773.pdf |
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| Auber, Arnaud; Gohin, Francis; Goascoz, Nicolas; Schlaich, Ivan. |
| A growing number of studies have documented increasing dominance of warm-water fish species (“tropicalisation”) in response to ocean warming. Such reorganization of communities is starting to occur in a multitude of local ecosystems, implying that tropicalisation of marine communities could become a global phenomenon. Using 32 years of trawl surveys in the Bay of Somme (English Channel, France), we aimed to investigate the existence of a tropicalisation in the fish community at the local scale of the estuary during the mid-1990s, a period where an exceptional temperature rise occurred in Northeast Atlantic. A long-term response occurred (with a major transition over 6 years) that was characterized by a marked diminution in the abundance of cold-water... |
| Tipo: Text |
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| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00374/48551/48873.pdf |
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| Baudrier, Jerome; Schlaich, Ivan. |
| Parmi les recommandations du programme de surveillance de la DCSMM, le suivi des poissons et céphalopodes démersaux des milieux meubles côtiers a été jugé prioritaire. Un suivi pérenne et opérationnel doit ainsi être mis en place au cours du premier cycle (2014-2020), il est basé sur une série de campagnes récurrentes à déployer dans les fonds inférieurs à 40 mètres, en complément de celles déjà existantes sur les façades Manche et Atlantique (Nurse, Nourseine, Noursom). Les suivis sont opérés dans les zones de nourriceries côtières des poissons bentho-démersaux, constituant des habitats essentiels pour de nombreuses espèces marines. La caractérisation de l’état écologique des peuplements et l’étude de la fonctionnalité des habitats de nourriceries... |
| Tipo: Text |
Palavras-chave: DCSMM; Programme de surveillance “Poissons-céphalopodes”; Nourriceries; Campagne en mer; Indicateurs; Bon Etat Ecologique. |
| Ano: 2018 |
URL: http://archimer.ifremer.fr/doc/00454/56537/58243.pdf |
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| Mclean, Matthew J.; Mouillot, David; Goascoz, Nicolas; Schlaich, Ivan; Auber, Arnaud. |
| While climate change is rapidly impacting marine species and ecosystems worldwide, the effects of climate warming on coastal fish nurseries have received little attention despite nurseries’ fundamental roles in recruitment and population replenishment. Here, we used a 26‐year time series (1987–2012) of fish monitoring in the Bay of Somme, a nursery in the Eastern English Channel (EEC), to examine the impacts of environmental and human drivers on the spatial and temporal dynamics of fish functional structure during a warming phase of the Atlantic Multidecadal Oscillation (AMO). We found that the nursery was initially dominated by fishes with r‐selected life‐history traits such as low trophic level, low age and size at maturity, and small offspring, which... |
| Tipo: Text |
Palavras-chave: Atlantic Multidecadal Oscillation; Climate change; Ecosystem function; English Channel; Fisheries; Functional traits; Life history; Recruitment. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00471/58276/60818.pdf |
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| Bertrand, Jacques; Brind'Amour, Anik; Cochard, Marie-laure; Coppin, Franck; Leaute, Jean-pierre; Lorance, Pascal; Mahe, Jean-claude; Morin, Jocelyne; Poulard, Jean-charles; Rochet, Marie-joelle; Schlaich, Ivan; Souplet, Arnauld; Trenkel, Verena; Verin, Yves. |
| The ecosystems exploited by fishing are complex. The species which are sought after and their distribution rely on numerous processes, in time and space. The understanding of marine ecosystems requires important means and diverse information including those of professional fishing and scientific cruises. At first, scientific fishing cruises aimed to explore marine fauna and discover new halieutic resources. They were in line with the exploration cruises carried out by Prince Albert 1st of Monaco at the end of the XIXth century. However, since the beginning of the 1970s, they have been focusing on the quantification of the resources exploited by fishing. [...] After a series of "Understanding keys" aimed at helping the reader understand the methodology and... |
| Tipo: Text |
Palavras-chave: Mediterranean Sea; Bay of Biscay; English Channel; North Sea; France; Communities; Populations; Fishery science; Indicators; Bulletin; Méditerranée; Golfe de Gascogne; Manche; Mer du Nord; France; Pêche; Campagnes à la mer; Communautés; Populations; Halieutique; Indicateurs; Bulletin. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/rapport-6160.pdf |
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| Coppin, Franck; Le Roy, Didier; Schlaich, Ivan. |
| L'édition des Guides du chef de mission des campagnes halieutiques vise en particulier les campagnes inscrites dans des séries de relevés pluriannuels (campagnes benthiques, démersales et pélagiques). Mais elle concerne également toutes les campagnes halieutiques dont les données sont déposées auprès du Système d'information halieutique - campagnes à la mer. Cette documentation est publiée pour répondre aux objectifs suivants : - Ce guide fournit aux chefs de mission et aux équipes embarquées une documentation de base leur permettant de maîtriser l'ensemble des opérations à conduire pendant les campagnes. Il contribue ainsi à la cohérence de la conduite des observations et de l'acquisition des relevés au cours des séries, même dans le cas de changement de... |
| Tipo: Text |
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| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/00058/16947/14433.pdf |
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| Morin, Jocelyne; Bertrand, Jacques; Cochard, Marie-laure; Coppin, Franck; Leaute, Jean-pierre; Lobry, Jeremy; Mahe, Jean-claude; Poulard, Jean-charles; Rochet, Marie-joelle; Schlaich, Ivan; Souplet, Arnauld; Trenkel, Verena; Vaz, Sandrine; Verin, Yves. |
| Since about twenty years, Ifremer have carried out fishery surveys along the French coasts. A dynamic indicator-based approach to the assessment of multi-stock fisheries has been applied to these data series. Reference points for non-commercial populations and community indicators are seldom available, but reference directions are well established: it is known whether fishing will increase or decrease the indicator, hence the direction that should be avoided. A set of simple indicators of fishing impacts on fish populations and communities were estimated from time-series data provided by scientific surveys (population abundance and average length, community total biomass and number, average length and weight, and size spectrum). Trends in these indicators... |
| Tipo: Text |
Palavras-chave: Communauté; Population; Indicateurs; Campagnes scientifiques; Pêcheries multi spécifiques; Approche écosystémique pour la gestion des pêches. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/rapport-7293.pdf |
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| Bertrand, Jacques; Cochard, Marie-laure; Coppin, Franck; Le Pape, Olivier; Mahe, Jean-claude; Morin, Jocelyne; Poulard, Jean-charles; Rochet, Marie-joelle; Schlaich, Ivan; Souplet, Arnauld; Trenkel, Verena; Verin, Yves. |
| The scientist community, the fishing organisations and all involved parties show a growing interest in an integrated project management of the sea space exploited by fishing communities. A key to reach such a target is to make available reliable and precise scientist data on the different components of the fishing systems. For about twenty years, and in its mission to support the development of an integrated management for a sustainable use of marine resources, Ifremer has been organising monitoring campaigns of fishery resources along the shores of France. These campaigns aim at providing abundance indicator on species of interest. They consequently provide an essential knowledge base to characterize and trace the status of exploited fish and... |
| Tipo: Text |
Palavras-chave: Ecosystem; Indicating; Oceanographical campaign; Scientific research; Fishing halieutic; Fishing; English Channel; Bay of Biscay; France; Invertebrate; Pisces; Ecosystème; Indicateur; Campagne océanographique; Recherche scientifique; Pêche halieutique; Pêche; Mer du nord; Golfe de gascogne; Manche; France; Invertebrate; Pisces. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/rapport-1091.pdf |
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| Bertrand, Jacques; Cochard, Marie-laure; Coppin, Franck; Leaute, Jean-pierre; Lobry, Jeremy; Mahe, Jean-claude; Morin, Jocelyne; Poulard, Jean-charles; Rochet, Marie-joelle; Schlaich, Ivan; Souplet, Arnauld; Trenkel, Verena; Verin, Yves; SIH-C. |
| The integration of fishing management into the ecosystemic approach has been recommended for many years by international consultative bodies; it is also written into international conventions and agreements. The implementation of the ecosystemic approach involves the development of programmes for monitoring exploited ecosystems in order to measure the effects of management steps. Plotting the results of these observations for operational reasons requires formalizing summary performance indicators. IFREMER has carried out halieutic observation campaigns for some twenty years along the coasts of France from oceanographic ships and chartered ships. The objective of these campaigns is to produce abundance indices of species that are of halieutic interest.... |
| Tipo: Text |
Palavras-chave: Ecosystem; Indicating; Scientific survey; Scientific research; Fishing; English Channel; Bay of Biscay; France; Shellfish; Fish; Invertébrés; Poissons; Ecosystème; Indicateur; Campagne océanographique; Recherche scientifique; Pêche halieutique; Pêche; Mer du nord; Golfe de gascogne; Manche; France. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/rapport-2327.pdf |
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| Schlaich, Ivan. |
| Dans le cadre de la mise en œuvre du programme de surveillance de la directive cadre stratégie pour le milieu marin (DCSMM), le suivi des poissons et céphalopodes démersaux des milieux meubles côtiers a été jugé prioritaire. Pour ce faire, une série de campagnes halieutiques récurrentes a été déployée dans les nourriceries côtières, constituant des habitats essentiels pour de nombreuses espèces marines. La caractérisation de l’état écologique des peuplements et l’étude de la fonctionnalité des habitats de nourriceries s’avèrent nécessaires au calcul des indicateurs du Bon Etat Ecologique requis par la DCSMM et primordiales pour la mise en place de mesures de gestion écosystémique garantissant des usages durables. La campagne Nourmont conduite dans la baie... |
| Tipo: Text |
Palavras-chave: Fonctionnement des nourriceries côtières; Dynamique temporelle; Communautés bentho-démersales; Campagne en mer; DCSMM. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00488/59918/63101.pdf |
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| Schlaich, Ivan. |
| La ressource en crustacés, notamment le homard, espèce emblématique parmi toutes, qui trouve dans les cavités des zones rocheuses des habitats favorables, est importante dans l’Ouest Cotentin. Afin de protéger cette ressource, des cantonnements à crustacés ont été mis en place dès les années 60 à l’initiative des professionnels de la mer. Ces outils fournissent des refuges à de nombreuses espèces exploitées ou non qui peuvent y trouver des habitats non impactés par la pêche. En général, à l'intérieur de ces zones, l’abondance des populations et la taille des individus augmentent, renforçant ainsi leur potentiel reproducteur. A partir d’un moment, cette concentration d’individus dans une zone réduite entraîne des mouvements d'individus et de dispersion... |
| Tipo: Text |
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| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00363/47377/47372.pdf |
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| Dreves, Luc; Martin, Jocelyne; Monbet, Philippe; Rumebe, Myriam; Schlaich, Ivan; Thillaye Du Boullay, Herve. |
| Monitoring n°19 of the Flamanville nuclear power plant takes into account studies conducted between March and September 2001. Impacts on hydrology, microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos are reported. This power plant has been in operation for sixteen years. [NOT CONTROLLED OCR] |
| Tipo: Text |
Palavras-chave: Pelagos; Fisheries; Benthos; Nuclear power plant; Monitoring; Flamanville; Pelagos; Halieutique; Benthos; Surveillance; Flamanville; Centrale nucléaire. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/2002/rapport-6882.pdf |
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| Dreves, Luc; Lampert, Luis; Martin, Jocelyne; Rumebe, Myriam; Schlaich, Ivan. |
| Monitoring n°20 of the Flamanville nuclear power plant takes into account studies conducted between March and September 2002. Impacts on hydrology, microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos are reported. This power plant has been in operation for seventeen years. |
| Tipo: Text |
Palavras-chave: Centrale nucléaire; Flamanville; Surveillance; Halieutique; Pelagos; Benthos; Flamanville; Monitoring; Nuclear power plant; Benthos; Fisheries; Pelagos. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/00002/11362/7935.pdf |
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| Dreves, Luc; Lampert, Luis; Martin, Jocelyne; Abernot-le Gac, Chantal; Gaffet, Jean-dominique; Rumebe, Myriam; Schlaich, Ivan. |
| Monitoring n°21 of the Flamanville nuclear power plant takes into account studies conducted between March and September 2003. Impacts on hydrology, microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos are reported. This power plant has been in operation for eighteen years. |
| Tipo: Text |
Palavras-chave: Centrale nucléaire; Flamanville; Surveillance; Benthos; Halieutique; Pelagos; Flamanville; Monitoring; Nuclear power plant; Benthos; Fisheries; Pelagos. |
| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/00002/11363/7936.pdf |
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| Dreves, Luc; Le Gac-abernot, Chantal; Dagault, Françoise; Gaffet, Jean-dominique; Lampert, Luis; Martin, Jocelyne; Schlaich, Ivan. |
| Monitoring n°22 of the Flamanville nuclear power plant takes into account studies conducted between March and September 2004. Impacts on hydrology, microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos are reported. This power plant has been in operation for nineteen years. |
| Tipo: Text |
Palavras-chave: Pelagos Fisheries Benthos Nuclear power plant Monitoring; Flamanville Pelagos Halieutique Benthos Surveillance Flamanville Centrale nucléaire. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/rapport-1028.pdf |
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| Registros recuperados: 40 | |
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