{"refrec":{"BRefID":230109,"RR":"<b>Bennett, S.C.; Irwin, S.W.B.; Fitzpatrick, S.M.</b> (2003). Tributyltin and copper effects on encystment and in vitro excystment of <i>Parorchis acanthus</i> larvae. <i>J. Helminthol. 77(4)</i>: 291-296. <a href=\"http://dx.doi.org/10.1079/JOH2003200\" target=\"_blank\">http://dx.doi.org/10.1079/JOH2003200</a>","BEntID":221825,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>J. Helminthol. 77(4)</i>: 291-296. <a href=\"http://dx.doi.org/10.1079/JOH2003200\" target=\"_blank\">http://dx.doi.org/10.1079/JOH2003200</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Bennett, S.C.; Irwin, S.W.B.; Fitzpatrick, S.M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Bennett, S.C. <i>et al.</i>","Englishabstract":"Effects of tributyltin (TBT) and copper (Cu) on cercariae and metacercariae of the trematode <em xmlns:xlink=\"http://www.w3.org/1999/xlink\">Parorchis acanthus</em> (Digenea: Philophthalmidae) were investigated. Cercariae released by the dogwhelk, <em xmlns:xlink=\"http://www.w3.org/1999/xlink\">Nucella lapillus</em> were maintained in natural seawater (SW) or solutions of TBT or Cu ranging from 0.001–100?µg?l<sup xmlns:xlink=\"http://www.w3.org/1999/xlink\">-1</sup> and 1–6?mg?l<sup xmlns:xlink=\"http://www.w3.org/1999/xlink\">-1</sup> respectively before they encysted. Over 79% of the cercariae encysted in control and test solutions. Low concentrations of TBT reduced encystment success more than low concentrations of Cu. The percentage of cercariae that formed cysts in the highest concentrations of both pollutants was higher than in the controls, perhaps representing an ‘emergency response’ to the pollutants. Before being induced to excyst <em xmlns:xlink=\"http://www.w3.org/1999/xlink\">in vitro</em>, metacercariae were left in the heavy metal solutions for 3 weeks. Metacercariae exposed as cercariae to TBT and Cu achieved lower percentage excystment success than those that had encysted in SW. Cyst walls provided greater protection against Cu than TBT. It was concluded that TBT and Cu had a detrimental effect on the larval stages of <em xmlns:xlink=\"http://www.w3.org/1999/xlink\">P. acanthus</em> at the higher concentrations used but the cyst wall afforded an element of protection if formed in unpolluted seawater before the larval stages were subjected to the pollutants.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Tributyltin and copper effects on encystment and in vitro excystment of <i>Parorchis acanthus</i> larvae","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-05-19 01:32:44.018581","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2003,"MonPub":null,"DateUpdate":"2013-10-21","DateCreate":"2013-10-21","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000186699800003","VABBcode":null,"OpenAcc":0,"DOI":"10.1079/JOH2003200"},"refs":null,"anarec":{"AnaID":230109,"PubliDate":2003,"Pagination":"291-296","XtraPublOfAnaID":null,"ISBN":null,"Volume":"77","Issue":"4","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43065,"SerRR":"Journal of Helminthology. 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