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Registros recuperados: 9
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Calomicrolaimus compridus (Gerlach, 1956) n. comb., a marine nematode with a female producing a copulatory plug IRD
Gourbault, N.; Vincx, M..
Tipo: Text Palavras-chave: TAXONOMIE; ANATOMIE ANIMALE; MALE; FEMELLE; BIOMETRIE; NEMATODE MARIN; BOUCHON COPULATOIRE; REVISION DE TAXONOMIE.
Ano: 1988 URL: http://www.documentation.ird.fr/hor/fdi:27680
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Carbon flows through meiobenthic nematodes in the Westerschelde Estuary IRD
Li, J.; Vincx, M.; Herman, P.M.J..
Un modèle en temps dynamique a été utilisé pour évaluer le flux de carbone chez les nématodes appartenant à un écosystème benthique intertidal de l'estuaire de l'Escaut occidental, aux Pays-Bas. Le modèle a permis de calibrer la biomasse des nématodes de mars 1991 à février 1992. Les fonctions de contrainte du modèle incluent la biomasse du meiobenthos, celle du macrobenthos, la concentration en bactéries, la concentration en chlorophylle a, et d'autres paramètres de l'environnement, tels la température et la photopériode. Il est estimé que la population de nématodes présents a un faible niveau de stock, 249 mb C/m2, mais un niveau élevé de flux de carbone. Les nématodes consomment 98 mg C/m2/d et produisent 22 mg C/m2/d. La défécation est de 73 C/m2/d....
Tipo: Text Palavras-chave: NEMATODE; BENTHOS; BIOMASSE; CARBONE; MATIERE ORGANIQUE; PRODUCTIVITE.
Ano: 1997 URL: http://www.documentation.ird.fr/hor/fdi:010012347
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Draconematidae (Nematoda, Desmodoroidea) from the Coast of Kenya, East Africa OMA
Verschelde, D.; Vincx, M..
Six species of the family Draconematidae from the intertidal zone of the beaches of Gazi and Malindi, Kenya, are described or provided with additional information. <i>Dracognomus annae</i> sp. n. is characterised by its round rostrum, and by the shape of the male spicules; <i>Dracognomus dermatoglyphus</i> sp. n. is characterized by its indented rostrum, the fingerprint-like pattern of the annules at the mid-body region, and males by their spicules with hook-shaped capitulum; <i>Dracograllus gilbertae</i> sp. n. is characterized by its large fovea amphidialis, its slender posterior adhesion tubes, and a ventral postcloacal swelling at the base of the tail. Only one female and one juvenile was found of a...
Tipo: Info:eu-repo/semantics/article
Ano: 1993 URL: http://www.vliz.be/imisdocs/publications/243875.pdf
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<i>Psammonema</i> gen. n. and <i>Pseudochromadora</i> Daday, 1889 (Nematoda, Desmodoridae) from sandy sediments of Gazi, Kenya OMA
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
Ano: 1995 URL: http://www.vliz.be/imisdocs/publications/217165.pdf
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Meiofauna communities from the Straits of Magellan and the Beagle Channel OMA
Chen, G.T.; Herman, R.L.; Vincx, M..
Meiofauna from 20 stations (ranging between 8 and 550 m) in the Magellan Straits and the Beagle Channel revealed 28 small sized taxa of higher categories including the temporary meiofauna. Nematoda, Copepoda Harpacticoidea and Polychaeta occurred in all samples; Turbellaria, Bivalvia, Kinorhyncha and Ostracoda were regularly present. Nematodes represented between 68% and 94% of the meiofauna at each station, followed by the copepods (2.3% to 14.5%) and polychaetes (1.1% to 11.5%). Maximal total density, 9700 individuals 10 cm(-2), was found in the surroundings of Picton Island, while the mean abundance per station was 3374 individuals 10 cm(-2). The vertical pattern within the sediment showed that 87% of meiofauna components concentrated in the upper 0-5...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Channels Community composition Meiobenthos Straits Taxa Vertical distribution Zonal distribution Zoobenthos Bivalvia Copepoda [copepods] Harpacticoida Kinorhyncha [spiny-crown worms] Nematoda [Nematodes] Ostracoda Polychaeta [Bristle worms] Turbellaria [Flatworms] PSW; Argentina; Tierra del Fuego; Beagle Channel PSW; Chile; Magellan Straits PSW; Chile; Tierra del Fuego; Beagle Channel.
Ano: 1999 URL: http://www.vliz.be/imisdocs/publications/256154.pdf
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Nematodes from the Indian Ocean: description of six new species of the genus <i>Molgolaimus</i> Ditlevsen, 1921 (Nematoda: Desmodoridae) OMA
Muthumbi, A.; Vincx, M..
Six new species of the genus <i>Molgolaimus</i> Ditlevsen, 1921 are described from the Indian Ocean. <i>Molgolaimus abyssorum</i> n. sp. is characterised by a small body (L = 287-370 µm), amphids close to the anterior end (2-3 µm behind the anterior end), short (2 x abd) curved spicules and absense of pre-cloacal supplements.<i>Molgolaimus tyroi</i> n. sp. is characterised by a small body size (L = 225-290 µm), amphids close the anterior end (2 µm behind anterior), long thin spicules curved twice and one or two pre-cloacal supplements. <i>Molgolaimus gazii</i> n. sp. is characterised by narrow anterior end with the head region slightly offset, wide amphids (70% cbd) located at 2.6-3.0 x hd behind the anterior...
Tipo: Info:eu-repo/semantics/article Palavras-chave: New species Taxonomy Molgolaimus abyssorum Molgolaimus gazii Molgolaimus kiwayui Molgolaimus sabakii Molgolaimus tanai Molgolaimus tyroi Nematoda [Nematodes] ISW; Kenya; Gazi Bay ISW; Kenya; Tana Delta.
Ano: 1996 URL: http://www.vliz.be/imisdocs/publications/243961.pdf
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The infaunal macrobenthos under East African <i>Ceriops tagal</i> mangroves impacted by epibenthos OMA
Schrijvers, J.; Camargo, M.G.; Pratiwi, R.; Vincx, M..
The interactions between macrobenthic in- and epifauna of a mid-intertidal <i>Ceriops tagal</i> (Perr.) Rob. stand were studied in order to test the relative importance of epibenthic predation pressure on and resource competition with the macro-endobenthos. The study is the fourth in a series of papers based on exclusion experiments in two different parts of the mangrove system at Gazi Bay in southern Kenya. The permanent and visiting epibenthos were excluded using cages. Densities of the macrobenthic taxa Oligochaeta (families Tubificidae and Enchytraeidae), Amphipoda (genera <i>Grandidierella</i> and <i>Ampelisca</i>), Insecta larvae (family Dolichopodidae), Polychaeta (families Nereidae and Terebellidae),...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ceriops tagal.
Ano: 1998 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=316
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The metazoan meiofauna in its biogeochemical environment: the case of an Antarctic coastal sediment OMA
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
Ano: 1998 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=323
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The role of structuring benthos for juvenile flatfish ArchiMer
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
Registros recuperados: 9
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