{"refrec":{"BRefID":117535,"RR":"<b>Morton, B.; Peharda, M.; Harper, E.M.</b> (2007). Drilling and chipping patterns of bivalve prey predation by <i>Hexaplex trunculus</i> (Mollusca: Gastropoda: Muricidae). <i>J. Mar. Biol. Ass. U.K. 87(4)</i>: 933-940. <a href=\"https://dx.doi.org/10.1017/S0025315407056184\" target=\"_blank\">https://dx.doi.org/10.1017/S0025315407056184</a>","BEntID":111853,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>J. Mar. Biol. Ass. U.K. 87(4)</i>: 933-940. <a href=\"https://dx.doi.org/10.1017/S0025315407056184\" target=\"_blank\">https://dx.doi.org/10.1017/S0025315407056184</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Morton, B.; Peharda, M.; Harper, E.M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Morton, B.; Peharda, M.; Harper, E.M.","Englishabstract":"The predatory caenogastropod <i>Hexaplex trunculus</i> employed different methods to access different species of bivalve prey characterized by different shell thicknesses. <i>Hexaplex trunculus</i> drilled <i>Callista chione</i> and <i>Venus verrucosa</i> at their shell margins but the latter species also laterally. It also attempted to drill two species of <i>Tapes</i> but successfully penetrated these only after chipping the shell margin. Chipping, whereby a labral spine is forcibly pushed between the prey's valves, especially posteriorly, to break them followed by proboscis insertion, was typically applied to access the thinner shelled prey <i>Cerastoderma glaucum</i> whereas <i>Modiolus barbatus</i> and <i>Mytilus galloprovincialis</i> were either chipped or drilled. The pattern of <i>M. galloprovincialis</i> shell penetration appears related to predator and prey size. Small (40 mm shell height) <i>H. trunculus</i> tended to drill rather than marginally chip <i>M. galloprovincialis</i>. Medium sized (55 mm shell height) <i>H. trunculus</i> either chipped or drilled <i>M. galloprovincialis</i> in approximately equal proportions but also at the valve margin. Larger (70 mm shell height) <i>H. trunculus</i> tended to laterally drill average sized (35 mm shell length) and the biggest (65 mm shell length) <i>M. galloprovincialis</i>. When larger <i>M. galloprovincialis</i> are attacked it thus becomes increasingly more difficult for <i>H. trunculus</i> to chip and drill the shell margin, possibly because the periostracum is thicker here in such individuals, and the predator resorts to lateral drilling. This is possible because as the mytilid ages its surface periostracum becomes progressively eroded and thus thinner and easier to access. Scanning electron microscopy (SEM) identified shell microstructure damage which shows that the chipping and drilling behaviours of <i>H. trunculus</i> result from labral spine damage and dissolutional etching, respectively, rather than mechanical radula rasping. These observations have implications for the use of such predation marks to identify the predator taxon implicated from holes in either empty Recent shells or fossil material.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Drilling and chipping patterns of bivalve prey predation by <i>Hexaplex trunculus</i> (Mollusca: Gastropoda: Muricidae)","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-23 01:32:00.955753","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2007,"MonPub":null,"DateUpdate":"2020-10-26","DateCreate":"2007-12-04","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000249347900014","VABBcode":null,"OpenAcc":0,"DOI":"10.1017/S0025315407056184"},"refs":null,"anarec":{"AnaID":117535,"PubliDate":2007,"Pagination":"933-940","XtraPublOfAnaID":null,"ISBN":null,"Volume":"87","Issue":"4","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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