{"refrec":{"BRefID":238167,"RR":"<b>Renwart, M.; Mallefet, J.</b> (2013). First study of the chemistry of the luminous system in a deep-sea shark, <i>Etmopterus spinax</i> Linnaeus, 1758 (Chondrichthyes: Etmopteridae). <i>J. Exp. Mar. Biol. Ecol. 448</i>: 214-219. <a href=\"http://dx.doi.org/10.1016/j.jembe.2013.07.010\" target=\"_blank\">dx.doi.org/10.1016/j.jembe.2013.07.010</a>","BEntID":229854,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>J. Exp. Mar. Biol. Ecol. 448</i>: 214-219. <a href=\"https://dx.doi.org/10.1016/j.jembe.2013.07.010\" target=\"_blank\">https://dx.doi.org/10.1016/j.jembe.2013.07.010</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Renwart, M.; Mallefet, J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Renwart, M.; Mallefet, J.","Englishabstract":"The chemistry of the luminous system in a shark is addressed for the first time. Assuming that many luminous species acquire their luminous substrate (luciferin) through the food chain, we investigated the feeding habits of a Norwegian population of the lantern shark <i>Etmopterus spinax</i> Linnaeus, 1758 in order to identify potential alimentary sources of luciferin in this species. Among the major groups of preys found in the diet of <i>E. spinax</i>, we identified three potential sources of luciferin: the euphausiid <i>Meganyctiphanes norvegica</i> Sars, 1857 (tetrapyrrole luciferin), the shrimp <i>Pasiphaea multidentata</i> Esmark, 1866 (coelenterazine) and the teleost <i>Maurolicus muelleri</i> Gmelin, 1789 (coelenterazine). Their luciferins were tested for their presence in the digestive tract and photogenic organs of <i>E. spinax</i> as well as for their cross-reaction with a putative shark catalyst. Although not detected in the diet, the cypridinid luciferin, the third most widespread marine luciferin, was also assayed. As a result, only the coelenterazine was unambiguously detected in the digestive tract of <i>E. spinax</i> and none of the tested luciferins reacted with the shark catalyst extract. Our results support the hypothesis of an unknown luminous system in this shark species, involving either a known luciferin in a specific active or storage form, or an unknown light-emitting molecule.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"First study of the chemistry of the luminous system in a deep-sea shark, <i>Etmopterus spinax</i> Linnaeus, 1758 (Chondrichthyes: Etmopteridae)","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":"Bioluminescence; Elasmobranch; Etmopterus spinax; Feeding habits;Luciferin","OtherDescriptors":null,"Notes":null,"AnaPub":2013,"MonPub":null,"DateUpdate":"2015-10-29","DateCreate":"2014-05-18","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000326430500027","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.jembe.2013.07.010"},"refs":null,"anarec":{"AnaID":238167,"PubliDate":2013,"Pagination":"214-219","XtraPublOfAnaID":null,"ISBN":null,"Volume":"448","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43229,"SerRR":"Journal of Experimental Marine Biology and Ecology. 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