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Registros recuperados: 7
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Ambient flow velocity and resulting clearance rates of the terebellid polychaete Lanice conchilega (Pallas, 1766) ArchiMer
Denis, L; Desroy, Nicolas; Ropert, Michel.
A laboratory flume study was conducted to determine the effect of flow velocity on clearance rates of the Polychaeta Terebellidea Lanice conchilega (Pallas, 1966). Using sets of 75 individuals collected along the east coast of the English Channel, we measured clearance rates at five flow velocities of approximate to 4, 9, 15, 22 and 27 cm s(-1) with a culture of the diatom Chaetoceros calcitrans as food source. During each control (without polychaetes) or clearance (with Lanice conchilega) experiment, in vivo fluorescence was continuously monitored. Further HPLC analysis confirmed the sediment resuspension for the highest flow velocities tested, indicating the need for 'corrections' from control experiments. The global pattern resulted in a dome-shaped...
Tipo: Text Palavras-chave: Recirculating flume; Feeding activity; Terebellidea; Polychaetes; Clearance rate; Lanice conchilega.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-3418.pdf
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Caractérisation et déterminisme du développement d'une population de l'annélide tubicole Lanice conchilega (Pallas, 1766) (Polychète Terebellidae) associé à la conchyliculture en Baie des Veys (Baie de Seine Occidentale) ArchiMer
Ropert, Michel.
Since the mid 80's, a tidal population of the polychaete Lanice conchilega has proliferated along the eastern part of the "Baie des Veys" (Western part of the Bay of Seine). Population density 7 000 individuals per square meter. This proliferation affected significantly the local oyster farming industry, by resulting increased sedimentation rates. This work try to improved understanding the phenomenon by analyzing at various temporal and spatial scales the ecosystem and its relationship with the Lanice conchilega population dynamics. Several field works were carried out (i.e. bottom type mapping, topography, hydrology) to analyse the occurrence and development of this population taking into account the overall changes of the "Baie des Veys" ecosystem....
Tipo: Text Palavras-chave: Veys Bay; Seine Bay; Crassostrea gigas; Lanice conchilega; Mussel culture; Baie de Seine; Baie des Veys; Crassostrea gigas; Lanice conchilega; Conchyliculture.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/1999/these-3.pdf
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Etude bibliographique de quelques espèces planctoniques et benthiques littorales de la Manche - Volume 3 - Espèces zoobenthiques ArchiMer
Blanchard, Michel.
This document is the third volume of a bibliographical survey of some of the species studied by IFREMER Brest's Coastal Environment Department (DEL) on a regular basis. The studied animals are a selection of characteristic community species (ex: Lanice or Abra) or populations whose density is so large that they are the ideal material for a regular pluri-annual study (ex: Nucule). For some of them, a regular geographical distribution along the Channel coasts, can be another reason for their selection. On the one hand, for some species, which can be easily reached on the tidal zone, works are numerous and documentation heavy, especially in the ethology field (building of tube of Lanice, displacement of Patelle) On the other hand, documentation, if any, is...
Tipo: Text Palavras-chave: Bentic; Coastal species; Plankton; English Channel sea; Tapes rhomboides; Spisula ovalis; Abra alba; Glycymeris glycemeris; Nucula nucleus; P. intermedia; P. aspera; Patella vulgata; Lanice conchilega; Benthiques; Espèces littorales; Plancton; Manche; Tapes rhomboides; Spisula ovalis; Abra alba; Glycymeris glycemeris; Nucula nucleus; P. intermedia; P. aspera; Patella vulgata; Lanice conchilega.
Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/rapport-3697.pdf
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Pagurus bernhardus Serpent
Jones, D..
general seabed. G. glycymeris shells, hermit crab (probably Pagurus bernhardus), sand mason polychaetes (Lanice conchilega) and starfish (Asterias rubens).
Tipo: Image Palavras-chave: Family Parapaguridae (Hermit Crabs); Family Asteriidae (Sea stars); Order Canalipalpata (Tube worms); Pagurus bernhardus; Asterias rubens; Lanice conchilega.
Ano: 2007 URL: http://archive.serpentproject.com/1857/
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Pagurus bernhardus Serpent
Jones, D..
General seabed G. glycymeris shells, hermit crab (probably Pagurus bernhardus), sand mason polychaetes (Lanice conchilega) and starfish (Asterias rubens).
Tipo: Image Palavras-chave: Family Parapaguridae (Hermit Crabs); Class Bivalvia (Bivalves); Family Asteriidae (Sea stars); Order Canalipalpata (Tube worms); Pagurus bernhardus; Glycymeris glycymeris; Lanice conchilega.
Ano: 2007 URL: http://archive.serpentproject.com/1854/
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Renewal and accumulation of a Lanice conchilega (Pallas) population in the bale des Veys, western Bay of Seine ArchiMer
Ropert, Michel; Dauvin, Jean-claude.
Since the mid-1980s, an increase in abundance of the annelid polychaete Lanice conchilega (Pallas) (Annelida: Polychacta, Terebellidae) has been observed in the Bay des Veys (western Bay of Seine). The first particularity of this population is that it is strictly limited to the eastern side of the bay, in an oyster aquaculture area. Its proliferation (over 7 000 ind.m(-2)) has had a significant impact on the local aquaculture. Several studies have been carried out since 1993; monthly monitoring of population densities and size structure has demonstrated the lack of significant juvenile recruitment between 1993 and 1996. In terms of geographical occupation, maps of population spatial distributions were drawn in 1995 and 1998. They showed an increase in...
Tipo: Text Palavras-chave: Adult transport; Renewal; Accumulation; Lanice conchilega; Polychaeta; Transports adultes; Recrutement; Prolifération; Lanice conchilega; Polychète.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/2000/publication-538.pdf
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The role of structuring benthos for juvenile flatfish ArchiMer
Rabaut, M.; Calderon, M. Audfroid; Van De Moortel, L.; Van Dalfsen, J.; Vincx, M.; Degraer, S.; Desroy, Nicolas.
Within coastal nurseries, the distribution of juvenile flatfish may depend on small-scale habitat variability. The presence of ecosystem engineers is known to have important impacts in coastal sediments. Lanice conchilega is a well-known marine ecosystem engineer of shallow soft bottom ecosystems, shaping the macrobenthic community and attracting flatfish. The present study examines the relation between juvenile flatfish and L conchilega reefs through two experiments. In a field experiment in the Dutch part of the North Sea, the benthic habitat is evaluated by comparing relative differences in numbers of juvenile flatfish between ecosystem engineered habitats and adjacent bare sand (i.e. non-ecosystem engineered) habitats. The hypothetical shelter seeking...
Tipo: Text Palavras-chave: Juvenile flatfish; Shelter; Feeding ground; Lanice conchilega; Ecosystem engineer; Pleuronectes platessa.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00170/28104/26702.pdf
Registros recuperados: 7
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