{"refrec":{"BRefID":211034,"RR":"<b>Boets, P.; Lock, K.; Goethals, P.L.M.</b> (2011). Shifts in the gammarid (Amphipoda) fauna of brackish polder waters in Flanders (Belgium). <i>J. Crust. Biol. 31(2)</i>: 270-277. <a href=\"http://dx.doi.org/10.1651/10-3357.1\" target=\"_blank\">dx.doi.org/10.1651/10-3357.1</a>","BEntID":202956,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>J. Crust. Biol. 31(2)</i>: 270-277. <a href=\"https://dx.doi.org/10.1651/10-3357.1\" target=\"_blank\">https://dx.doi.org/10.1651/10-3357.1</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":1,"TerrestrialFlag":0,"Authorstring":"Boets, P.; Lock, K.; Goethals, P.L.M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Boets, P. <i>et al.</i>","Englishabstract":"The macrocrustacean community of brackish polder waters in Flanders was investigated based on a twenty year survey comprising 430 biological samples taken at 218 different locations. A clear shift in the gammarid community could be observed. After its introduction, the alien <i>Gammarus tigrinus</i>, originating from North America, reached high abundances and became widely spread in the polder waters within a few years. Simultaneously, a decrease in the prevalence of the indigenous brackish water gammarids <i>G. duebeni</i> and <i>G. zaddachi</i> occurred. However, at the same time a decrease in the salinity of the polder waters also was observed. Uni- and multivariate data analysis revealed a clear difference in the environmental preferences of <i>G. tigrinus, G. duebeni</i>, and <i>G. zaddachi</i>. The alien species preferred lower salinities, lower orthophosphate concentrations, and a higher oxygen concentration compared to the two indigenous species. Besides the decrease in prevalence of the native gammarids, a decrease was also observed in prevalence of two other indigenous brackish water crustaceans: <i>Palaemonetes varians</i> and <i>Neomysis integer</i>. It appears that the decrease in salinity is the most important factor causing the decline of the indigenous gammarids and not the introduction of the alien <i>G. tigrinus</i>.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Shifts in the gammarid (Amphipoda) fauna of brackish polder waters in Flanders (Belgium)","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":"alien species; Gammarus duebeni; Gammarus tigrinus; Gammarus zaddachi;","OtherDescriptors":null,"Notes":null,"AnaPub":2011,"MonPub":null,"DateUpdate":"2012-02-06","DateCreate":"2011-12-22","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000289963500008","VABBcode":null,"OpenAcc":0,"DOI":"10.1651/10-3357.1"},"refs":null,"anarec":{"AnaID":211034,"PubliDate":2011,"Pagination":"270-277","XtraPublOfAnaID":null,"ISBN":null,"Volume":"31","Issue":"2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43037,"SerRR":"Journal of Crustacean Biology. 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