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Registros recuperados: 10
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A new species of Pista Malmgren, 1866 (Polychaeta, Terebellidae) from the north-western Mediterranean Sea ArchiMer
Labrune, Céline; Lavesque, Nicolas; Bonifácio, Paulo; Hutchings, Pat.
A new species of Terebellidae, Pista colini sp. n., has been identified from the harbour of Banyuls-sur-Mer, north-western Mediterranean Sea. This new species was found in very high densities, exclusively in gravelly sand deposited manually, and was not found in the original source habitat of the gravel. This species is characterized by the colour of the ventral shields with pinkish anterior part and a blood red posterior part in live specimens, a pair of unequal-sized plumose branchiae inserted on segment II and anterior thoracic neuropodia with long-handled uncini. The presence of long-handled uncini even in the smallest specimens constitutes the major difference between Pista colini sp. n. and other Pista species with a single pair of branchiae such as...
Tipo: Text Palavras-chave: Annelida; Gravel deposits; Harbour; Pista colini sp. n.; Taxonomy; Terebellida.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00489/60062/63347.pdf
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A new species of the Marphysa sanguinea complex from French waters (Bay of Biscay, NE Atlantic) (Annelida, Eunicidae) ArchiMer
Lavesque, Nicolas; Daffe, Guillemine; Bonifacio, Paulo; Hutchings, Pat.
A new species of Eunicidae, Marphysa victori sp. n., has been identified from Arcachon Bay, Bay of Biscay, NE Atlantic. This new species, belonging to the sanguinea complex, is characterised by branchiae with long filaments from chaetigers 26–34, the presence of four types of pectinate chaetae with first ones present from chaetiger 2, a large number of both pectinate chaetae and compound spinigers, and the pygidium with only one pair of pygidial cirri. An identification key for European species of the genus Marphysa is provided.
Tipo: Text Palavras-chave: Bait worms; Eastern Atlantic; France; Marphysa; Molecular; Morphology; Polychaeta; Taxonomy.
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00411/52235/52966.pdf
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Ecological Quality Status of the Marennes-Oléron Bay (SW France): inference from soft-bottom macrozoobenthos monitored in coastal and transitional waters under the E.U. Water Framework Directive ArchiMer
Sauriau, Pierre-guy; Cajeri, Pauline; Cottet, Maud; Blanchet, Hugues; Bachelet, Guy; Lavesque, Nicolas; De Montaudouin, Xavier; Dubois, Sophie; Pothier, Anaelle; Auby, Isabelle; Trut, Gilles; Lamouroux, Mélina.
Tipo: Text
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00212/32308/30729.pdf
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First record of the successful invader Palaemon macrodactylus in Arcachon Bay and Charente estuary (SW France) ArchiMer
Lavesque, Nicolas; Bachelet, Guy; Blanchet, Hugues; Moderan, Julien; Sauriau, Pierre-guy; Duquesne, Elise; Auby, Isabelle; Sorbe, Jean-claude.
Tipo: Text
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00181/29214/27623.pdf
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Fonctionnement de la nourricerie à sole des pertuis Charentais - Rapport final - Décembre 2010 ArchiMer
Biais, Gerard; Leaute, Jean-pierre; Sauriau, Pierre-guy; Loizeau, Veronique; Robert, Serge; Lavesque, Nicolas; Lepareur, Fanny; Aubert, Fabien; Joassard, Lucette; Paticat, François; Roupsard, François.
La sole est la ressource halieutique qui contribue le plus aux débarquements en valeur des pêches réalisées dans le golfe de Gascogne (52 M € en 2007-09). Elle arrive aussi en première place dans les débarquements de la pêche charentaise (8 M € en 2007-09). Une flottille de grands fileyeurs spécialisés dans sa pêche s'est développée dans le golfe de Gascogne, dont certaines des unités les plus performantes sont basées à Royan. Le port de La Cotinière est l'un des premiers pour les débarquements de sole des chalutiers opérant dans le golfe de Gascogne. Cette espèce contribue aussi à l'équilibre financier annuel de nombreux petits bateaux côtiers.
Tipo: Text
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00304/41547/40755.pdf
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Loimia ramzega sp nov., a new giant species of Terebellidae (Polychaeta) from French waters (Brittany, English Channel) ArchiMer
Lavesque, Nicolas; Bonifacio, Paulo; Londono-mesa, Mario H.; Le Garrec, Vincent; Grall, Jacques.
A new species of Terebellidae, Loimia ramzega sp. nov., has been identified from North Brittany beaches (English Channel). This new species is characterized by its gigantic size (max 650 mm, live), two pairs of lateral lappets on segments 1 and 3; first pair more ventral, second pair more developed and lateral but oblique, with wavy edge. Nine ventral pads from segment 2 (fused on segments 2 and 3), first three pads swollen, next ones subsequently decreasing in size. Three types of notochaetae, asymmetrically bilimbate, symmetrically bilimbate and capillary. Uncini pectinate with 6 teeth (some with 5 teeth) slightly decreasing in size, in one vertical row. Pygidium with about 14 long conical marginal papillae surrounding anus.
Tipo: Text Palavras-chave: Terebellinae; Morphology; Molecular; Taxonomy; DNA COI 16S; North-east Atlantic; France.
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00431/54224/55764.pdf
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Multiscale patterns in the diversity and organization of benthic intertidal fauna among French Atlantic estuaries ArchiMer
Blanchet, Hugues; Gouillieux, Benoit; Alizier, Sandrine; Amouroux, Jean-michel; Bachelet, Guy; Barille, Anne-laure; Dauvin, Jean-claude; De Montaudouin, Xavier; Derolez, Valerie; Desroy, Nicolas; Grall, Jacques; Gremare, Antoine; Hacquebart, Pascal; Jourde, Jerome; Labrune, Celine; Lavesque, Nicolas; Meirland, Alain; Nebout, Thiebaut; Olivier, Frederic; Pelaprat, Corine; Ruellet, Thierry; Sauriau, Pierre-guy; Thorin, Sebastien.
Based on a parallel sampling conducted during autumn 2008, a comparative study of the intertidal benthic macrofauna among 10 estuarine systems located along the Channel and Atlantic coasts of France was performed in order to assess the level of fauna similarity among these sites and to identify possible environmental factors involved in the observed pattern at both large (among sites) and smaller (benthic assemblages) scales. More precisely this study focused on unraveling the observed pattern of intertidal benthic fauna composition and diversity observed at among-sites scale by exploring both biotic and abiotic factors acting at the among- and within-site scales. Results showed limited level of similarity at the among-site level in terms of intertidal...
Tipo: Text Palavras-chave: Estuaries; Macrozoobenthos; Diversity; Structuring Factors; WFD.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00179/29016/27444.pdf
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Recent expansion of the oriental shrimp Palaemon macrodactylus (Crustacea: Decapoda) on the western coasts of France ArchiMer
Lavesque, Nicolas; Bachelet, Guy; Beguer, Melanie; Girardin, Michel; Lepage, Mario; Blanchet, Hugues; Sorbe, Jean-claude; Moderan, Julien; Sauriau, Pierre-guy; Auby, Isabelle.
The invasive oriental shrimp Palaemon macrodactylus Rathbun, 1902 has considerably extended its distribution in transitional waters along the Atlantic and Channel coasts of France during the period 2007-2010. The most probable method of a primary introduction of this species is ballast waters, but passive transport by water currents is also a possible mechanism of colonization (secondary introductions). Palaemon macrodactylus is a powerful invader of transitional waters and these new populations should be monitored in the future to assess any consequences to native species.
Tipo: Text Palavras-chave: Palaemon macrodactylus; Palaemonidae; Invasive species; Western France; Transitional waters.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00181/29213/27622.pdf
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Regional and latitudinal patterns of soft-bottom macrobenthic invertebrates along French coasts: Results from the RESOMAR database ArchiMer
Gallon, Regis K.; Lavesque, Nicolas; Grall, Jacques; Labrune, Celine; Gremare, Antoine; Bachelet, Guy; Blanchet, Hugues; Bonifacio, Paulo; Bouchet, Vincent M. P.; Dauvin, Jean-claude; Desroy, Nicolas; Gentil, Franck; Guerin, Laurent; Houbin, Celine; Jourde, Jerome; Laurand, Sandrine; Le Duff, Michel; Le Garrec, Vincent; De Montaudouin, Xavier; Olivier, Frederic; Orvain, Francis; Sauriau, Pierre-guy; Thiebaut, Eric; Gauthier, Olivier.
This study aims to describe the patterns of soft bottom macrozoobenthic richness along French coasts. It is based on a collaborative database developed by the “Réseau des Stations et Observatoires Marins” (RESOMAR). We investigated patterns of species richness in sublittoral soft bottom habitats (EUNIS level 3) at two different spatial scales: 1) seaboards: English Channel, Bay of Biscay and Mediterranean Sea and 2) 0.5° latitudinal and longitudinal grid. Total observed richness, rarefaction curves and three incidence-based richness estimators (Chao2, ICE and Jacknife1) were used to compare soft bottom habitats species richness in each seaboard. Overall, the Mediterranean Sea has the highest richness and despite higher sampling effort, the English Channel...
Tipo: Text Palavras-chave: Zoobenthos; Species richness; Regional pattern; Latitudinal pattern; Soft-bottom; France.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00376/48769/49166.pdf
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Use of biotic indices in semi-enclosed coastal ecosystems and transitional waters habitats - Implications for the implementation of the European Water Framework Directive ArchiMer
Blanchet, H; Lavesque, Nicolas; Ruellet, T; Dauvin, J; Sauriau, Pierre-guy; Desroy, Nicolas; Desclaux, C; Leconte, M; Bachelet, G; Janson, A; Bessineton, C; Duhamel, S; Jourde, J; Mayot, S; Simon, S; De Montaudouin, X.
This study deals with the application of macrozoobenthos-based biotic indices (BI) within the frame of the implementation of the European Water Framework Directive. More precisely, this study aimed at assessing the performance of five recently developed methodologies (BI) for the assessment of ecological quality status (EcoQ) in two semi-enclosed, sheltered coastal ecosystems and in one transitional water body situated along the Western French coast, namely Marennes-Oleron Bay, Arcachon Bay, and the Seine Estuary. This study showed that these five indices rarely agreed with each other, describing very different pictures of the overall EcoQ of the three study sites. This work also clearly underlined the limitations of these approaches, notably the...
Tipo: Text Palavras-chave: Transitional waters; Semi enclosed coastal ecosystems; Benthic invertebrates; Directive; European Water Framework; Biotic index.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-3987.pdf
Registros recuperados: 10
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