{"refrec":{"BRefID":22591,"RR":"<b>Trowbridge, C.D.</b> (2001). Coexistence of introduced and native congeneric algae: <i>Codium fragile</i> and <i>C. tomentosum</i> on Irish rocky intertidal shores. <i>J. Mar. Biol. Ass. U.K. 81(6)</i>: 931-937. <a href=\"https://dx.doi.org/10.1017/S0025315401004854\" target=\"_blank\">https://dx.doi.org/10.1017/S0025315401004854</a>","BEntID":22591,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>J. Mar. Biol. Ass. U.K. 81(6)</i>: 931-937. <a href=\"https://dx.doi.org/10.1017/S0025315401004854\" target=\"_blank\">https://dx.doi.org/10.1017/S0025315401004854</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Trowbridge, C.D.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Trowbridge, C.D.","Englishabstract":"The coexistence of three taxa of <i>Codium</i> (Chlorophyta: Codiaceae) was examined on wave-swept shores of western Ireland: the introduced macroalgae <i>Codium fragile</i> ssp. <i>atlanticum</i> and ssp. <i>tomentosoides</i> and the native <i>Codium tomentosum</i>. In spring 1999 and 2000, four sites were monitored to evaluate whether past predictions regarding temporal changes and species replacement occurred. Introduced and native species of dichotomously branching <i>Codium</i> occurred at four tidal levels: in tidepools in (i) the upper barnacle zone; (ii) the mid barnacle/fucoid zone; (iii) the mussel zone, and (iv) on emergent substrata in the red algal turf/kelp zone. <i>Codium fragile</i> ssp. <i>atlanticum</i> and ssp. <i>tomentosoides</i> grew together in 11.9% of surveyed pools containing <i>Codium</i>. Compared to 1971 censuses, <i>C. fragile</i> ssp. <i>atlanticum</i> had increased in relative abundance at all tidal levels, and the dominance of <i>C. fragile</i> ssp. <i>tomentosoides</i> had declined. The native <i>C. tomentosum</i> constituted the same percentage of the population as it did in 1971. Pool availability and primary rock surfaces were not limiting at most sites, indicating that inter-subspecific and inter-specific competition could not account for temporal changes in <i>Codium</i> distribution on Irish shores. Ecological constraints other than intra-generic competition may have contributed to the purported long-term changes in <i>Codium</i> abundance.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Coexistence of introduced and native congeneric algae: <i>Codium fragile</i> and <i>C. tomentosum</i> on Irish rocky intertidal shores","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-12 01:31:06.416567","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2001,"MonPub":null,"DateUpdate":"2002-01-28","DateCreate":"2002-01-28","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000173486400005","VABBcode":null,"OpenAcc":0,"DOI":"10.1017/S0025315401004854"},"refs":null,"anarec":{"AnaID":22591,"PubliDate":2001,"Pagination":"931-937","XtraPublOfAnaID":null,"ISBN":null,"Volume":"81","Issue":"6","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43277,"SerRR":"Journal of the Marine Biological Association of the United Kingdom. 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