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| Registros recuperados: 14 | |
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| Vanhove, S.; Beghyn, M.; Van Gansbeke, D.; Bullough, L.W.; Vincx, M.. |
| Under the typical high-latitude conditions of temperature, productivity and settlement of chlorophyll and phaeophytin to the sediment, many benthic organisms in the Antarctic show strong seasonal variation. Although meiofauna comprise an important component of the southpolar benthic ecosystem, our knowledge of them is limited. The metazoan meiofauna and the surrounding sediments were studied fortnightly for 18 mo in a shallow bay at Signy Island (Factory Cove, South Orkneys, Antarctica) to test whether and how the temporal variability of the environment influenced meiobenthos dynamics. By examination of the distribution of the abundance and biomass of the total community, the density of higher taxonomic groups, and of individual dominant nematode genera... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Benthos; Biomass; Population density; Seasonal variations; Sediment analysis; Trophic relationships; Copepoda [copepods]; Nematoda [Nematodes]; Ostracoda. |
| Ano: 2000 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6138 |
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| Steyaert, M.; Garner, N.; Van Gansbeke, D.; Vincx, M.. |
| Nematode assemblages were sampled seasonally at three subtidal stations along the Belgian coast. The stations were characterized by muddy sediments (station 115), fine sand (station 702) and fine to coarse sand (station 790). The forces structuring vertical distribution were investigated by evaluating abundance, species composition, diversity and trophic composition, and relating these to sediment composition, redox state and food sources. The nematode assemblages at the two finer grained stations (115, 702) were dominated by <i>Daptonema tenuispiculum</i> and <i>Sabatieria punctata</i>. For both species, the vertical distribution in the sediment seemed not dependent on the redoxchemistry, as former believed for <i>S.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Community composition Environmental factors Marine invertebrates Population density Species diversity Vertical distribution Zoobenthos Nematoda [Nematodes] ANE; Belgium ANE; North Sea. |
| Ano: 1999 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=4035 |
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| Vanreusel, A.; Vincx, M.; Schram, D.; Van Gansbeke, D.. |
| The metazoan meiofauna of nine stations in shelf break and upper slope areas (70 to 1500 m water depth) of the N.E. Atlantic were investigated in order to assess which environmental factors are important in the control of densities and sediment profiles. Total meiofaunal densities (ranging between 368 and 1523 ind/10 cm<sup>2</sup> were correlated with bacterial densities, an important food source for meiofauna. However, considering sediment vertical distribution profiles, the relative importance of both food and oxygen on the meiofauna became obvious. A combination of both bacterial densities and oxygen supply could explain about 95% of the variability in the vertical profiles of the meiofauna densities. Meiofauna numbers increase in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Meiofauna; Vertical profiles. |
| Ano: 1995 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7279 |
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| Vanhove, S.; Wittoeck, J.; Beghyn, M.; Van Gansbeke, D.; Van Kenhove, A.; Coomans, A.; Vincx, M.. |
| To date meiobenthic research remained a big white spot in the systematic-ecological work on Antarctic zoobenthos. Therefore the relative importance of the meiofauna (organisms within the size range of 38-1000µm) in the Antarctic benthic community has been assessed by a combined field ecology and experimental approach. This was done in two contrasting conditions, e.g. the deep sea and low subtidal, where as to the depth of the water column the benthic characteristics were, respectively, indirectly or directly related to primary production. Deep-sea samples were collected at Kapp Norvegia and Halley Bay (Weddell Sea) during the EPOS-leg 3-campaign (summer 1989) with the RV Polarstern at depths between 200 and 2000 m. Samples for the ecological-experimental... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ecosystems Meiobenthos PS; Antarctic Ocean PS; Antarctica. |
| Ano: 1997 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8938 |
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| Gee, J.M.; Austen, M.C.; De Smet, G.; Ferraro, T.; McEvoy, A.; Moore, S.; Van Gansbeke, D.; Vincx, M.; Warwick, R.M.. |
| During the Bremerhaven Workshop, the meiofaunal communities along 2 supposed North Sea pollution gradients, one at a drilling site off the Dutch coast and the other across the German Bight, were analysed by a variety of univariate and multivariate techniques and the changes on community structure related to a suite of measured environmental variables. At the drilling site the only evidence of change in community structure was a slight reduction in the abundance of nematodes in the deeper parts of the sediment (2 to 10 cm) close to the drilling site. Otherwise, there were no significant differences between sites using any other measure of community structure. It is concluded that sufficient time had elapsed since the cessation of drilling activity for a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Drilling Environmental impact Marine pollution Meiobenthos ANE; Germany; German Bight. |
| Ano: 1992 |
URL: http://www.vliz.be/imisdocs/publications/273315.pdf |
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| Soetaert, K.; Vincx, M.; Wittoeck, J.; Tulkens, M.; Van Gansbeke, D.. |
| The meiobenthic fauna of the Westerschelde, a highly polluted and physically disturbed estuary in the south-west Netherlands, was investigated. Samples were taken in spring from six transects, including the intertidal, subtidal and channel area, and located along the salinity gradient. The samples were subdivided into slices to examine the vertical distribution of meiobenthos. Meiobenthos densities were higher in the intertidal than in most permanently submersed areas; the subtidal sites below 7 salinity were nearly devoid of meiobenthic life. Nematodes were by far the most abundant meiobenthic organisms in the intertidal, but were less dominant in the other areas. Gastrotrichs, turbellarians, copepods and large ciliates were usually more numerous in the... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1994 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8461 |
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| Vanhove, S.; Lee, H.J.; Beghyn, M.; Van Gansbeke, D.; Brockington, S.; Vincx, M.. |
| The metazoan meiobenthos was investigated in an Antarctic coastal sediment (Factory Cove, Signy Island, Antarctica). The fine sands contained much higher abundances compared to major sublittoral sediments worldwide. Classified second after Narragansett Bay (North Atlantic) they reached numbers of 13x10<sup>6</sup> ind m<sup>-2</sup>. The meiofauna was highly abundant in the surface layers, but densities decreased sharply below 2cm. Vertical profiles mirrored steep gradients of microbiota, chloropigments and organic matter and were coincident with chemical stratification. Spatial patchiness manifested especially in the surface layer. Nematodes dominated (up to 90%), and <i>Aponema, Chromadorita, Diplolaimella, Daptonema,... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1998 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=323 |
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| Registros recuperados: 14 | |
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