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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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one publication added to basket [689]

Particle flux in an Antarctic shallow coastal environment: a sediment trap study Schloss, I.; Ferreyra, G.A.; Mercuri, G.; Kowalke, J. (1999). Particle flux in an Antarctic shallow coastal environment: a sediment trap study. Sci. Mar. (Barc.) 63(S1): 99-111. https://dx.doi.org/10.3989/scimar.1999.63s199 In: Scientia Marina (Barcelona). Consejo Superior de Investigaciones Científicas. Institut de Ciènces del Mar: Barcelona. ISSN 0214-8358; e-ISSN 1886-8134, meer Ook verschenen in: Arntz, W.E.; Ríos, C. (Ed.) (1999). Magellan-Antarctic: Ecosystems that drifted apart. Scientia Marina (Barcelona), 63(Supl. 1). Institut de Ciències del Mar: Barcelona. 518 pp. https://dx.doi.org/10.3989/scimar.1999.63s1, meer

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Beschikbaar in	Auteurs
VLIZ: Open access 372958 [ download pdf ]

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Trefwoord

Marien/Kust

Author keywords

Antarctica, organic and inorganic particles, shallow coastal environments, sediment traps, benthic communities

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Auteurs		Top
Schloss, I. Ferreyra, G.A. Mercuri, G. Kowalke, J.

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Abstract

Sediment trap arrays were deployed at Potter Cove, King George Island, Antarctica, between December 1991 and August 1992 and in the summer seasons of 1993-1994, and 1995. The sampling sites reached 30 m depth, and traps were placed during the different seasons at various distances from the sea bottom (0.1 to 25 m), some being buried in the sediments. Daily sedimentation rates of total particulate matter (TPM) and chlorophyll-a were estimated. Water column temperature and salinity as well as pigment and TPM concentration were also measured and related to traps´ results. Water column data evidenced processes in relation with phytoplankton dynamics, stormy events and particles containing fresh water runoff. Similar trends were observed in the traps located at 25 m, 1 m and sometimes even in those located to around 0.1 m from sea bottom, although traps buried in the sediments mainly reflected resuspension events. Chlorophyll a fluxes were higher in the bottom traps, but the sedimented organic fraction of the TPM (particulate organic matter, POM) was higher in the traps located remotely from the bottom, being significantly lower in the buried traps (i.e. POM represented 50% of TPM at 1 m and 9% POM in the buried trap on November 23 in 1993, although a great variability among sampling dates was also observed). The significance of these dynamics for the food availability for the macrozoobenthic organisms present in the area is discussed.

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