{"refrec":{"BRefID":123396,"RR":"<b>Zintzen, V.; Norro, A.; Massin, C.; Mallefet, J.</b> (2008). Temporal variation of <i>Tubularia indivisa</i> (Cnidaria, Tubulariidae) and associated epizoites on artificial habitat communities in the North Sea. <i>Mar. Biol. (Berl.) 153(3)</i>: 405-420. <a href=\"https://dx.doi.org/10.1007/s00227-007-0819-5\" target=\"_blank\">https://dx.doi.org/10.1007/s00227-007-0819-5</a>","BEntID":117420,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Mar. Biol. (Berl.) 153(3)</i>: 405-420. <a href=\"https://dx.doi.org/10.1007/s00227-007-0819-5\" target=\"_blank\">https://dx.doi.org/10.1007/s00227-007-0819-5</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Zintzen, V.; Norro, A.; Massin, C.; Mallefet, J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Zintzen, V. <i>et al.</i>","Englishabstract":"We have analyzed the composition, diversity, density and biomass of a temporal series of samples taken in a <i>Tubularia indivisa</i> community, which dominates a shipwreck in the North Sea waters (N 51°23',730-E 02°29',790, 17 nautical miles from the coast, 30 m depth). This shipwreck has structures emerging up to 8 m above the seabed. Water temperature ranged from 4.2°C in March to 20.3°C in August. Salinity showed few variations around 33.9 psu. Bottom tidal currents followed a semi-diurnal cycle and were preferentially NE oriented with 84% of them in the range 0.25-0.75 m s<sup>-1</sup>. The mean value for total suspended matter was 6.2 mg l<sup>-1</sup> with large variations on a monthly scale. The species richness of samples varied from 15 in October to 42 in August with a mean value of 33 species. Diversity indices were higher during autumn and winter because of the strong dominance of a few crustacean species during the warmer months. The total density of individuals ranged from 6,500 ind m<sup>-2</sup> in October to 445,800 ind m<sup>-2</sup> in July, most of these individuals belonging to the amphipod species <i>Jassa herdmani</i>. The biomass of the <i>T. indivisa</i> community varied from 9 g AFDW m<sup>-2</sup> in October to 1,106 g AFDW m<sup>-2</sup> in July, with <i>T. indivisa</i> itself constituting between 59 and 82% of the total biomass. The biomass of <i>T. indivisa</i> was positively correlated with species richness and with the density of 23% of the species identified on this community, suggesting that <i>T. indivisa</i> plays an important structural role in this habitat. This was further confirmed by the number of species associated with <i>T. indivisa</i> which was generally superior to 55% of the sorted species. Multivariate analysis indicated strong differences between spring/summer-autumn/winter assemblages mostly but not solely due to the abundance patterns of species. These findings support the conclusion that shipwrecks in Belgian waters allow the development of assemblages dominated by a high biomass of <i>T. indivisa</i> which in turn provides shelter for high densities and biomass of epizoites. These assemblages will further show large monthly variations in densities and composition due to large variation in <i>T. indivisa</i> biomass under an apparent repetitive annual cycle.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Temporal variation of <i>Tubularia indivisa</i> (Cnidaria, Tubulariidae) and associated epizoites on artificial habitat communities in the North Sea","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-10 01:31:35.551728","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2008,"MonPub":null,"DateUpdate":"2019-07-30","DateCreate":"2008-06-27","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000251488200017","VABBcode":null,"OpenAcc":0,"DOI":"10.1007/s00227-007-0819-5"},"refs":null,"anarec":{"AnaID":123396,"PubliDate":2008,"Pagination":"405-420","XtraPublOfAnaID":null,"ISBN":null,"Volume":"153","Issue":"3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43352,"SerRR":"Marine Biology: International Journal on Life in Oceans and Coastal Waters. Springer: Heidelberg; Berlin.  ISSN 0025-3162; e-ISSN 1432-1793","StandardTitleSer":"Marine Biology: International Journal on Life in Oceans and Coastal Waters","ISSN":"0025-3162","AbbrevSer":"Mar. Biol. 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