{"refrec":{"BRefID":16932,"RR":"<b>Sorbe, J.-C.</b> (1989). Structural evolution of two suprabenthic soft-bottom communities of the South Gascogne continental shelf, <b><i>in</i></b>: Ros, J.D. (Ed.) <i>Topics in Marine Biology: Proceedings of the 22nd European Marine Biology Symposium, Barcelona, Spain, August 1987. Scientia Marina (Barcelona),</i> 53(2-3): pp. 335-342","BEntID":16932,"PublicFlag":1,"CheckedFlag":0,"wosflag":0,"vabbflag":null,"RefStringPartII":", <b><i>in</i></b>: Ros, J.D. (Ed.) <i>Topics in marine biology: Proceedings of the 22nd European Marine Biology Symposium, Barcelona, Spain, August 1987. European Marine Biology Symposia,</i> 22: pp. 335-342","DocTypID":17,"DocType":"Book chapters","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Sorbe, J.-C.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Sorbe, J.-C.","Englishabstract":"A survey of two sites (situated on a E-W bathymetric transect off Arcachon Bay) was carried out from January 1981 to March 1982. Analysis of the motile fauna sampled monthly by means of a quantitative sledge shows the existence of two distinct suprabenthic communities in relation to the depth gradient. The structural evolution of the coastal community (31 m depth; unstable sediments) reflects the severe and fluctuating environmental conditions of this area: dominance of a reduced number of species, low species richness and diversity indices, strong fluctuations of density and biomass values, alternation of log-linear with log-normal demographic profiles, some frequency rank curves with typical features of juvenile assemblages. At a deeper site (91 m depth; muddy sand sediments), the more stable environmental conditions lead to a community structure organized in a different way from that of the coastal one (either in its daytime or night-time aspect): higher values of species richness and diversity indices, most demographic profiles in close conformity to the log-normal modelof abundance distribution, convex shape of all the rank frequency curves. Comments are made about the indirect role of hydrodynamic action on the structure of these suprabenthic communities.","AbstractOtherLang":null,"BibLvlCode":"AMS","StandardTitle":"Structural evolution of two suprabenthic soft-bottom communities of the South Gascogne continental shelf","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1989,"MonPub":null,"DateUpdate":"2001-10-04","DateCreate":"2001-08-30","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":16932,"PubliDate":1989,"Pagination":"335-342","XtraPublOfAnaID":null,"ISBN":null,"Volume":"22","Issue":null,"BRefMon":16905,"BRefMonRR":"<b>Ros, J.D. (Ed.)</b> (1989). Topics in marine biology: Proceedings of the 22nd European Marine Biology Symposium, Barcelona, Spain, August 1987. <i>European Marine Biology Symposia</i>, 22. <i>Scientia Marina (Barcelona)</i>, 53(2-3). 145-754 pp.","BRefXtra":null,"BRefXtraRR":null,"SerBRefID":20275,"SerRR":"European Marine Biology Symposia.","StandardTitleSer":"European Marine Biology Symposia","ISSN":null,"AbbrevSer":null,"StandardTitleMon":"Topics in marine biology: Proceedings of the 22nd European Marine Biology Symposium, Barcelona, Spain, August 1987","StartPage":335,"Pages":8,"ToPubliDate":null,"BRefBibLvlCode":"MS","SerNotes":null,"AutString":"Ros, J.D. 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