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| Registros recuperados: 102 | |
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| Rabaut, M.; Calderon, M. Audfroid; Van De Moortel, L.; Van Dalfsen, J.; Vincx, M.; Degraer, S.; Desroy, Nicolas. |
| Within coastal nurseries, the distribution of juvenile flatfish may depend on small-scale habitat variability. The presence of ecosystem engineers is known to have important impacts in coastal sediments. Lanice conchilega is a well-known marine ecosystem engineer of shallow soft bottom ecosystems, shaping the macrobenthic community and attracting flatfish. The present study examines the relation between juvenile flatfish and L conchilega reefs through two experiments. In a field experiment in the Dutch part of the North Sea, the benthic habitat is evaluated by comparing relative differences in numbers of juvenile flatfish between ecosystem engineered habitats and adjacent bare sand (i.e. non-ecosystem engineered) habitats. The hypothetical shelter seeking... |
| Tipo: Text |
Palavras-chave: Juvenile flatfish; Shelter; Feeding ground; Lanice conchilega; Ecosystem engineer; Pleuronectes platessa. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00170/28104/26702.pdf |
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| Verschelde, D.; Vincx, M.. |
| Three new species (<i>Psammonema ovisetosum</i> gen. et sp. n., <i>Pseudochromadora coomansi</i> sp. n.and <i>Pseudochromadora buccobulbosa</i> sp. n.; including all juvenile stages) belonging to a known and to a new genus of the family Desmodoridae (Nematoda, Desmodoroidea) were found in sandy sediments of the intertidal zone in front of the estuarine mangroves of Gazi, Kenya. <i>Psammonema</i> gen. n. differs from <i>Pseudochromadora</i> Daday, 1889 in shape and number of somatic setae in pharyngeal region, in position and shape of lateral alae, and in the anterior position of the amphids on the head capsule. Comments are given on the ecto-symbiotic organisms, feeding habits of the species and... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1995 |
URL: http://www.vliz.be/imisdocs/publications/217165.pdf |
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| Degraer, S.; Vincx, M.; Meire, P.; Offringa, H.. |
| In October 1994, 39 macrobenthic samples, divided between two areas, were taken on the western Belgian Coastal Banks. The two areas could not be clearly divided, concerning their macrobenthic communities. Multivariate techniques revealed five coherent communities, linked with typical sedimentological factors: (1) the <i>Barnea candida</i> community in a very compact muddy sediment (median 14 µm); (2) a second community characterized by the presence of spat of <i>Mytilus edulis</i>, With a medium sandy sediment (median 456 µm); (3) the <i>Lanice conchilega</i> community inhabiting a fine sandy sediment (median 211 µm); (4) the <i>Nephtys cirrosa-Echinocardium cordatum</i> community in a coarser fine sandy... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Benthos Melanitta nigra ANE; Belgium. |
| Ano: 1999 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7324 |
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| Li, J.; Vincx, M.; Herman, P.M.J.. |
| A time dynamic model was used to estimate carbon flows through nematodes in an intertidal benthic ecosystem in the Westerschelde Estuary, The Netherlands. The model calibrated the nematode biomass observed from March 1991 to February 1992. The forcing functions of the model included meiobenthos biomass, macrobenthos biomass, bacterial density, chlorophyll-a concentration, and other abiotic data such as temperature and day length. We estimate that the nematode population had a low level of standing stock 249 mg C m(-2), but a high level of carbon flow. It consumed 98 mg C m(-2) d(-1) and produced 22 mg C m(-2) d(-1). Defecation was 73 mg C m(-2) d(-1). Losses in respiration, excretion and natural death were only 3 mg C m(-2) d(-1). The annual P/B was 32 for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Degradation; Ecology; Marine nematodes; Meiobenthos; Respiration. |
| Ano: 1997 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7296 |
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| Belgrano, A.; Vincx, M.; Dewarumez, J.-M.; Richard, A.; Craeymeersch, J.A.; Heip, C.H.R.. |
| The density distribution of meroplanktonic larvae is compared with the density distribution of adults in the benthos, at five coastal stations in the Southern Bight of the North Sea (<i>Abra alba</i> community). Plankton communities were sampled during one tidal cycle, along a buoy traject or at a fixed point; southern and northern locations, 250 m from each central sampling point, have been investigated too. Benthos samples were taken only at the central points of this traject. Meroplankton consisted of polychaete larvae (9 families) and bivalve and echinoderm larvae. The highest density values of these larvae (6,400 ind.10.25 m<sup>2</sup>) are found on the southern sites of each traject (closest to the coastline). The highest... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Meiobenthos Meroplankton Recruitment ANE; North Sea; Southern Bight. |
| Ano: 1990 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7114 |
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| Moens, T.; Vincx, M.. |
| Respiration and food assimilation of two estuarine bacterivorous nematodes, the rhabditid <i>Pellioditis marina</i> and the monhysterid <i>Diplolaimelloides meyli</i>, were measured at a range of temperatures, salinities, and food densities. The aim of this study was to identify the fundamental niche of both species in their natural habitat, and to investigate the relative importance of food and abiotic factors in determining presence and success of nematode species in the highly dynamic estuarine tidal environments of macrophyte detrital habitats. Of the three factors studied, salinity least impacted <i>P. marina</i> and <i>D. meyli</i>. Respiration and assimilation in both species showed only minor... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nematoda [Nematodes]. |
| Ano: 2000 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7422 |
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| Furstenberg, J.P.; Vincx, M.. |
| A female and three males of <i>Procamacolaimus tubifer</i> Gerlach, 1953 are described and illustrated from Cape Receife Beach, Port Elizabeth. <i<P. africanus</i> sp.nov. is also described from Cape Receife Beach. It is compared with <i>P. tubifer</i> which it resembles but from which it can be differentiated by length of the buccal cavity, amphid size and the shape of the spicules. <i>Eontolaimus capensis</i> gen.nov., sp.nov. is described, also from the same sandy beach. This new genus is related to <i>Deontolaimus papillatus</i> de Man, 1880 from which it can be distinguished, among other things, by the absence of a tooth-like structure in the buccal cavity and the presence of pre-anal tubuli. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Leptolaimidae; Nematoda [Nematodes]. |
| Ano: 1988 |
URL: http://www.vliz.be/imisdocs/publications/276167.pdf |
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| Tita, G.; Vincx, M.; Desrosiers, G.. |
| Nematode species from three intertidal assemblages (St Lawrence Estuary, Quebec, Canada) were studied in order to form an ecological interpretation of three allometric attributes: body width, size spectra, and morphotypes. The three assemblages were characterized by a very similar sediment grain median (Md) but different silt-clay proportions: A1 (upper-tidal level; Md=122 µm; silt=34.8%), A3 (mid-tidal level; Md=182 µm; silt=12.8%), and A5 (lower-tidal level; Md=122 µm; silt=6.8%). Silt-clay proportions were an influential factor in determining the mean nematode body width, used as a morphological discriminant between burrowing and interstitial organisms. A plot of the number of species vs the body width-classes showed two peaks: between 19.3 and 22.6 µm... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Abundance; Benthos; Biomass; Diversity; Meiobenthos; Transport. |
| Ano: 1999 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7340 |
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| Moens, T.; Vincx, M.. |
| The present study investigates the influence of salinity and temperature on the life history of two estuarine bacterivorous nematode species, <i>Pellioditis marina</i> and <i>Diplolaimelloides meyli</i>, isolated from the mesohaline zone of the Westerschelde Estuary, SW Netherlands. Gravid females and adult males were inoculated in petri dishes containing agar layers of nine (for <i>P. marina</i>) or five (for <i>D. meyli</i>) different salinities, from almost freshwater to higher than marine, and incubated at a temperature of 20°C, to study the impact of salinity; agar layers with a salinity of 20‰, incubated under each of six different temperatures from 5 to 30°C, served to study the effect of temperature.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nematoda [Nematodes]. |
| Ano: 2000 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7421 |
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| Gourbault, N.; Vincx, M.. |
| <i>Spirobolbolaimus boucherorum</i> sp.n. (Microlaimidac) and <i>Sabatieria maboyae</i> sp.n. (Comesomatidae) arc described, and <i>Dorylaimopsis pellucidum</i> (Cobb, 1920) is discussed. Intersex specimens have been found in all three species. <i>Spirobolbolaimus boucherorum</i> sp.n. is characterized by its multispiral amphidcal fovea, number and localization of the cervical setae arranged in six rows posterior to the amphids, and large banana-shaped sperm. <i>Sabatieria maboyae</i> sp.n., a member of the <i>S. pulchra</i> group, possesses long posteriorly located cervical setae and long spicules. |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1990 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7119 |
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| Schrijvers, J.; Fermon, H.; Vincx, M.. |
| A cage exclusion experiment was used to examine the interaction between the epibenthos (permanent and visiting) and the macroinfauna of a high intertidal Kenyan <i>Avicennia marina</i> mangrove sediment. Densities of Oligochaeta (families Tubificidae and Enchytraeidae), Amphipoda, Insecta larvae, Polychaeta and macro-Nematoda, and a broad range of environmental factors were followed over 5 mo of caging. A significant increase of amphipod and insect larvae densities in the cages indicated a positive exclusion effect, while no such effect was observed for oligochaetes (Tubificidae in particular), polychaetes or macronematodes. Resource competitive interactions were a plausible explanation for the status of the amphipod community. This was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Avicennia marina [grey mangrove]. |
| Ano: 1996 |
URL: http://www.vliz.be/imisdocs/publications/316204.pdf |
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| Elliott, B.; Degraer, S.; Bursey, M.; Vincx, M.. |
| To elucidate vertical (= from high to low water mark) macroinfaunal community patterns on little-studied Belgian dissipative sandy beaches, macroinfauna was sampled at eight stations along a seaward transect at De Panne. Mean sand particle size was 196 µm, and the beach slope was ca. 1 : 90. Nineteen species were collected (excluding non-quantitatively sampled species), nine of which were polychaetes and eight were crustaceans. Total macroinfaunal abundance per station ranged from 103 to 585 ind./ m². Polychaetes and crustaceans were numerically dominant, comprising more than 98% of total numbers. Seaward spatial distributions of abundant species were interpreted to represent three biotic zones or macroinfaunal communities, as suggested by a kite diagram,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beaches; Ecological zonation; Belgium. |
| Ano: 1997 |
URL: http://www.vliz.be/imisdocs/publications/233896.pdf |
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| Moens, T.; Vincx, M.. |
| Observations on living estuarine nematodes show that previous feeding type classifications do not accurately represent the trophic structure of an intertidal mudflat in the Westerschelde Estuary (Netherlands). A new scheme with six major nematode feeding guilds is proposed: (1) microvores; (2) ciliate feeders; and (3) deposit feeders sensu stricto are all nematodes without a distinct buccal armature. In the first two groups bacteria and protozoa, respectively are the major particulate food sources, while other items are included in the diet of the third. The three other categories are recognized among the nematodes with a buccal armature: (4) epigrowth feeders; (5) facultative predators; and (6) predators. Diatoms and other microalgae are an important... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biology; Biomass; Carbon; Habits; Habits; Meiobenthos; Water. |
| Ano: 1997 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7298 |
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| Registros recuperados: 102 | |
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