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dc.contributor.authorAzouz, Abderrazak
dc.coverage.spatialTunisieen_US
dc.date.accessioned2016-03-24T10:38:15Z
dc.date.available2016-03-24T10:38:15Z
dc.date.issued1973
dc.identifier.urihttp://hdl.handle.net/1834/8607
dc.description.abstractThe main characteristic of submarine morphology of the region North of Tunisia is its irregularity. The continental shelf often remains narrow, uneven and extended by a steep slope. Hydrological studies of the area reveal complex phenomena. This zone is essentially exposed to 2 opposite influences, one from surface Atlantic water which has its maximum extension during the winter and one from the eastern basin of the Mediterranean which seems to rise to the surface from spring to the summer. The contact of the 'Atlantic' and eastern Mediterranean waters forms an important area of mixed water dominant in the sector of the northern region. The heterogeneous nature of the sea bottom of this region explains the diversity of biocoenoses and their interpretation. Due to this particular type of morphology and the heterogeneous nature of the bottom of this region, the biocoenoses are numerous and broken into fragments with coral organisms being dominant. The light soil of the bottom is generally intercalated with substratum. The following areas are characterized by rich benthic population: corals on 'La Galite' sheld; algal development, northeast of Cap Zebib; abundance of Echinodermata (Antedon mediterranea) in the center of the Gulf of Tunis which is essentially populated by the biocoenose of the terrigenous mud; presence of Leptometra phalangium in the La Galite channel; existence of a prairie of Cnidaris funiculina in the high sea line and of Isidella in the middle sea line the light soily bathyal bottom, characterizes the biocoenose of the deep mud, and the branching madreporaria which are well represented in the hardbathyal substrata. Furthermore, the composition of benthos in the northern region is comparable to that in other regions of the western basin of the Mediterranean. That of the south-east compares, by many spp, with other regions of the eastern basin. This confirms the transitional character of the Tunisian coasts between the western and eastern Mediterranean basins.en_US
dc.language.isofren_US
dc.titleLes fonds chalutables de la région Nord de la Tunisie: 1.Cadre physique et biocoenoses benthiques.en_US
dc.title.alternativeThe fishing grounds in North Tunisian waters. Physical factors and benthic communities.en_US
dc.typeJournal Contributionen_US
dc.bibliographicCitation.issue4en_US
dc.bibliographicCitation.titleBulletin de l'Institut National Scientifique et Technique d'Oceanographie et de Peche Salammboen_US
dc.bibliographicCitation.volume2en_US
dc.description.statusPublisheden_US
dc.format.pagerangepp. 473-563en_US
dc.subject.asfaBenthic zoneen_US
dc.subject.asfaVertical distributionen_US
dc.subject.asfaWater massesen_US
dc.subject.asfaCommunity compositionen_US
dc.subject.asfaEcosystemsen_US
dc.subject.asfaPhysical oceanographyen_US
dc.subject.asfaSubmarine featuresen_US
dc.subject.asfaBottom topographyen_US
dc.subject.asfaBenthosen_US
dc.subject.asfaEchinodermataen_US
dc.subject.asfaAscidiaceaen_US
dc.subject.asfaPoriferaen_US
dc.subject.asfaBryozoaen_US
dc.subject.asfaCrustaceaen_US
dc.subject.asfaMolluscaen_US
dc.subject.asfaCnidariaen_US
dc.subject.asfaAnnelidaen_US
dc.subject.asfaAlgaeen_US
dc.subject.asfaMarineen_US
dc.type.refereedRefereeden_US
refterms.dateFOA2021-01-30T18:47:44Z


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  • Articles - Bulletin [746]
    Le Bulletin de l'INSTM est publié depuis 1924. Il est indexé dans ASFA. Il fait suite au Bull. INSTOP et au Bull. SOS.

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