Consulta: creatorFacets:"Duineveld, Gca"
Registros recuperados: 3
Data/hora: 09/06/2024 08:41:39

Sediment O-2 demand, density and biomass of the benthos and phytopigments along the northwestern Adriatic coast: The extent of Po enrichment
Provedor de dados: 5
Autores: Tahey, Tm; Duineveld, Gca; Dewilde, Pawj; Berghuis, Em; Kok, A.
Sediment oxygen demand (SOD), silicate and ammonia fluxes, benthic macro- and meiofauna and phytopigments were measured during two cruises in March 1992 and August 1993 in the northwestern Adriatic Sea. Nine, mostly shallow (&lt; 50 m) stations, on a transect stretching from the Po mouth southwards, were visited. Two major issues were addressed: (1) To what extent does the river Po affect the benthic communities along this transect ? and (2) Is there any indication of an eutrophic situation as described in earlier studies ? The spatial patterns of SOD (range +/- 100 to 1450 mu mol O-2 . m(-2). h(-1)) and benthic fauna do not provide evidence for a simple latitudinal decrease in organic enrichment from the Po to the south. However, northern stations...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00093/20473/18143.pdf

Cold-water coral reefs and adjacent sponge grounds: hotspots of benthic respiration and organic carbon cycling in the deep sea
Provedor de dados: 5
Autores: Cathalot, Cecile; Van Oevelen, Dick; Cox, Tom J.s.; Kutti, Tina; Lavaleye, Marc S. S.; Duineveld, Gca; Meysman, Filip J. R.
Cold-water coral reefs and adjacent sponge grounds are distributed widely in the deep ocean, where only a small fraction of the surface productivity reaches the seafloor as detritus. It remains elusive how these hotspots of biodiversity can thrive in such a food-limited environment, as data on energy flow and organic carbon utilization are critically lacking. Here we report in situ community respiration rates for cold-water coral and sponge ecosystems obtained by the non-invasive aquatic Eddy Correlation technique. Oxygen uptake rates over coral reefs and adjacent sponge grounds in the Træna Coral Field (Norway) were 9–20 times higher than those of the surrounding soft sediments. These high respiration rates indicate strong organic matter consumption, and...
Tipo: Text
Palavras-chave: Deep-seaecosystems; Cold-watercorals; Sponges; Respiration; Energyflow.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00275/38574/37099.pdf

The ICES North Sea Benthos Project 2000: aims, outcomes and recommendations
Provedor de dados: 5
Autores: Rees, Hubert; Eggleton, Jacqueline D.; Vanden Berghe, Edward; Aldridge, John; Bergman, Magda J. N.; Boalm,; Cochrane, Sabine; Craeymeersch, Johan A.; Degraer, Steven; Desroy, Nicolas; Dewarumez, Jean-marie; Duineveld, Gca; Essink, Karel; Goethals,; Hillewaert, Hans; Irion,; Kershaw, Peter; Kroncke, Ingrid; Lavayele, Marc; Mason, Claire; Nehring, Stefan; Newell, Richard; Oug, Eivind; Pohlman, Thomas; Reiss, Henning; Robertson, Mike; Rumorh, Heye; Schratzberger, Michaela; Smith,; Van Dalfsen, Jan; Van Hoey, Gert; Vincx, Magda; Willems, Wouter.
The ICES Study Group on the North Sea Benthos Project 2000 undertook to integrate recent (1999–2002) macrobenthic infaunal and environmental data from various national sources. The main aim was to compare the outcome with that of the ICES North Sea Benthos Survey conducted in 1986, to identify any significant changes and their likely causes. In the process, the exercise yielded valuable lessons for the conduct of international collaborative programmes, as well as insights into the utility of a range of interpretational tools. These are timely in view of increasing requirements for periodic sea-wide assessments of quality status to meet international obligations, such as those under OSPAR, ICES, HELCOM, and EU auspices for European waters. This paper...
Tipo: Text
Palavras-chave: Macrobenthos; Infauna; Sediments; Communities; Ecosystems; North Sea.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/00158/26893/25024.pdf