{"refrec":{"BRefID":258533,"RR":"<b>Zettler, M.L.; Bochert, R.; Pollehne, F.</b> (2009). Macrozoobenthos diversity in an oxygen minimum zone off northern Namibia. <i>Mar. Biol. (Berl.) 156(9)</i>: 1949-1961. <a href=\"https://dx.doi.org/10.1007/s00227-009-1227-9\" target=\"_blank\">https://dx.doi.org/10.1007/s00227-009-1227-9</a>","BEntID":250542,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Mar. Biol. (Berl.) 156(9)</i>: 1949-1961. <a href=\"https://dx.doi.org/10.1007/s00227-009-1227-9\" target=\"_blank\">https://dx.doi.org/10.1007/s00227-009-1227-9</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Zettler, M.L.; Bochert, R.; Pollehne, F.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Zettler, M.L. <i>et al.</i>","Englishabstract":"A benthological survey in the Benguela upwelling area off northern Namibia (located at 17.3°S and water depth ranging between 26 and 117 m) showed the concentration of dissolved oxygen and the accumulation of organic-rich sediments to control macrozoobenthic community patterns. In contrast to highly biodiverse nearshore areas with well-structured shell deposits of the brachiopod <i>Discinisca tenuis</i> (Sowerby 1847), the benthic community in the oxygen minimum zone (OMZ) decreased strongly in species numbers. Nevertheless, a well-established community ranging from 13 to 31 species persisted. Species densities (300–3,350 ind m<sup>−2</sup>) and biomass (4–109 g afdw/m<sup>2</sup>) were surprisingly high for areas with near bottom oxygen concentrations from 0.06 to 0.88 ml l<sup>−1</sup>. In contrast to OMZ’s of other upwelling areas, where the benthic macrofauna is generally dominated by small-bodied polychaetes, off Namibia larger key organisms like the bivalve <i>Nuculana bicuspidata</i> (Gould 1845) and the snail <i>Nassarius vinctus</i> (Marrett 1877) accounted for a large proportion of the macrozoobenthos &gt;1 mm. This is supposed to have a distinct effect on the functional properties of the sediments.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Macrozoobenthos diversity in an oxygen minimum zone off northern Namibia","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-18 01:31:52.956571","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2009,"MonPub":null,"DateUpdate":"2018-02-13","DateCreate":"2016-06-08","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000268018700018","VABBcode":null,"OpenAcc":0,"DOI":"10.1007/s00227-009-1227-9"},"refs":null,"anarec":{"AnaID":258533,"PubliDate":2009,"Pagination":"1949-1961","XtraPublOfAnaID":null,"ISBN":null,"Volume":"156","Issue":"9","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43352,"SerRR":"Marine Biology: International Journal on Life in Oceans and Coastal Waters. 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