Distribution of adsorbed ammonium pools in two intertidal sedimentary structures, Marennes-Oléron Bay, France
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منابع مشابه
Effects of short-term environmental disturbances on living benthic foraminifera during the Pacific oyster summer mortality in the Marennes-Oléron Bay (France).
Sediment cores were collected from April to August 2004 on tidal mudflats of the macrotidal Marennes-Oléron Bay (SW France), famous for the cultivation of Pacific oysters (Crassostrea gigas). The response of living (stained) benthic foraminifera to short-term biogeochemical disturbances in the sediment and overlying water, which may be involved in oyster summer mortality, was monitored. Short-t...
متن کاملSeasonal dynamics of extracellular polymeric substances (EPS) in surface sediments of a diatom-dominated intertidal mudflat (Marennes-Oléron, France)
13 Numerous field-based investigations have highlighted that the production of Extracellular 14 Polymeric Substances (EPS) is physico-chemically and ecologically essential for intertidal 15 mudflats. EPS are largely secreted by marine benthic diatoms and their quantity and quality 16 are environmental-dependant. This paper focused on the dynamic pathways, concentration 17 rates and monosacchari...
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The protozoan parasite Marteilia refringens has been partly responsible for the severe decrease in the production of the European flat oyster Ostrea edulis Linnaeus in France since the 1970s. The calanoid copepod Paracartia grani Sars was recently found to be a host for M. refringens in French shallow-water oyster ponds ('claires'). This study reconsidered M. refringens transmission dynamics in...
متن کاملPersistent organic pollutants in a marine bivalve on the Marennes-Oléron Bay and the Gironde Estuary (French Atlantic Coast) - part 2: potential biological effects.
Contaminant effects on defence responses of ecologically and economically important organisms, such as the Pacific oyster Crassostrea gigas, are likely to influence their ability to resist infectious diseases, particularly at the young stages. The aim of this study was to explore the potential relationships between organic contaminants accumulated in the soft tissues of juvenile oysters, defenc...
متن کاملSummer mortality of Crassostrea gigas (Thunberg) in relation to environmental rearing conditions
The purpose of this study is to investigate summer mortality of the cupped oyster, Crassostrea gigas, in relation to culture practices in the traditional oyster production region of Marennes-Oléron (France). Four oyster rearing conditions, varying culture location (“on-“ or “off-bottom”), and site depth (65% to 80% daily immersion termed “deep” or 45% to 65%, termed “shallow”) were studied to c...
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ژورنال
عنوان ژورنال: Marine Ecology Progress Series
سال: 1999
ISSN: 0171-8630,1616-1599
DOI: 10.3354/meps182029