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| Rocha,Rosana M. da; Costa,Luciana V. G.. |
| Simple and colonial ascidians were collected at different depths at Arraial do Cabo, Rio de Janeiro, between 2000 and 2003. The collection here presented includes representatives of the families Clavelinidae (Clavelina oblonga), Polycitoridae (Cystodytes dellechiajei), Polyclinidae (Polyclinum constellatum and Polyclinum molle sp. nov.), Holozoidae (Distaplia bermudensis), Ascidiidae (Ascidia sydneiensis and Phallusia nigra), Styelidae (Botrylloides giganteum, Botrylloides nigrum, Symplegma brakenhielmi, Symplegma rubra, Polyandrocarpa anguinea, Eusynstyela floridana, Eusynstyela tincta and Styela plicata), Pyuridae (Herdmania pallida and Microcosmus exasperatus). Didemnids were also collected in the area but were not considered here. Of the 17 species... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ascidians; Tunicates; Taxonomy; Brazil; Rio de Janeiro. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212005000100009 |
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| Mazouni, Nabila; Gaertner, J; Deslous-paoli, Jean-marc. |
| This study was based on in situ experiments conducted in a shellfish lagoon (Thau, France) to determine the interactions between suspended oyster Crassostrea gigas Thunberg cultures and their environment at a seasonal scale. Three groups of descriptors were considered simultaneously during the course of the study: the taxonomic composition of an oyster culture unit (OCU), the nutrient and oxygen exchanges at the OCU-water interface (fluxes) and the water-column characteristics (water). We used a multiple factorial analysis (MFA) to assess in a single reference frame: (1) the seasonal organisation of the taxonomic groups which compose the OCU and (2) the interactions between this multispecific assemblage and the water column. We found strong seasonal... |
| Tipo: Text |
Palavras-chave: Ascidians; Fluxes; Multicompartment approach; Biofouling; Oyster culture. |
| Ano: 2001 |
URL: https://archimer.ifremer.fr/doc/1996/publication-809.pdf |
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| Ben Mustapha, K.; El Abed, A.; Komatsu, T.; Souissi, A.; Sammari, Ch.; Zarrouk, S; Hattour, A.. |
| Several marine campaigns aiming to collect marine demosponges for specific research projects on their taxonomy and biogeography and to study the phenology and distribution of Posidonia oceanica a long the Tunisian coasts were conducted these last 10 years. They allowed a scuba diving prospecting of the infra and circalittoral zones of 555 marine stations. This field work was an occasion to describe some bottom’s associations, to highlight the general state of the main communities, specially the Posidonia and the coralligenous formations, and to draw up a list of their mega benthic species. In general, both biota are well preserved along the Tunisian coasts. except for some black spots, mainly the one of the gulf of Gabes, where detailed analysis showed... |
| Tipo: Journal Contribution |
Palavras-chave: Eponges; Ascidians; Coralligenous; Posidonia oceanica; Bryozoans; Benthos; Sponges. |
| Ano: 2002 |
URL: http://hdl.handle.net/1834/222 |
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