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Leguellec, C; Bodin, P. |
In the eutrophicated Bay of Saint-Brieuc (western English Channel, France), density and biomass of the multicellular meiofauna were estimated in different intertidal and subtidal biotopes, in winter and late spring. Mean annual biomass varies from 0.5 to 2.3 g.m-2 in the intertidal zone, and from 0.5 to 1.1 g.m-2 in the subtidal zone. Vertical distribution (0-5 versus 5-10 cm) of taxa was considered in the intertidal zone. Results are discussed and compared to literature data: figures were similar to those of comparable biotopes, and there was no detectable effect of eutrophication on meiofauna density and vertical distribution in this area. The ''seasonal stability'' of nematodes was in contrast with a clear annual cycle in harpacticoid copepods. Biomass... |
Tipo: Text |
Palavras-chave: MEIOBENTHOS; QUANTITATIVE DISTRIBUTION; FRENCH COAST OF ENGLISH CHANNEL; INTERTIDAL AND SUBTIDAL ZONES; ORGANIC MATTER. |
Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/00101/21233/18850.pdf |
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Guelorget, O; Perthuisot, Jp; Lamy, N; Lefebvre, A. |
The biogeological organization of Thau lagoon was investigated through the granulometric analysis of surficial sediments and study of the qualitative and the quantitative distribution of benthic macrofauna and meiofauna. These show clearly that the lagoonal system is organized according to confinement as conceived by Guelorget and Perthuisot (1983 a; 1992), which depends upon the rate of exchanges with the open sea and the hydrodynamic pattern of the basin. The latter appears to be composed of a pair of lagoonal subsystems separated by a hydrodynamically unstable barrier. The northern subsystem displays the classical concentric organization of Mediterranean lagoons with a clearly defined hydraulic umbilicus. The southern subsystem displays a transverse... |
Tipo: Text |
Palavras-chave: LAGOON; MACROZOOBENTHOS; MEIOBENTHOS; CONFINEMENT; MEDITERRANEAN. |
Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/00098/20880/18494.pdf |
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