{"refrec":{"BRefID":65538,"RR":"<b>Segonzac, M.; de Saint-Laurent, M.; Casanova, B.</b> (1993). L'énigme du comportement trophique des crevettes Alvinocarididae des sites hydrothermaux de la dorsale médio-atlantique = Trophic behaviour of Alvinocarididae shrimps from hydrothermal area of Mid-Atlantic Ridge. <i>Cah. Biol. Mar. 34(4)</i>: 535-571 (8 plates)","BEntID":62001,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Cah. Biol. Mar. 34(4)</i>: 535-571 (8 plates)","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Segonzac, M.; de Saint-Laurent, M.; Casanova, B.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Segonzac, M. <i>et al.</i>","Englishabstract":"This study deals with comparison of morphology and in situ behaviour of three Alvinocarididae species from the Snake Pit hydrothermal area (Mid-Atlantic ridge), explored during the <i>Hydrosnake</i> cruise (1988). Spatial distribution on the site is described and illustrated for the three species. <i>Rimicaris exoculata</i> highly predominates. Modifications, apparently more morphological than functional, allowed adaptation to an environment characterised by extreme physico-chemical conditions and richness in bacteria. This species has developed a culture of bacteria on its mouthparts and under the carapace to complement nutrient input drawn from bacterial production from the surface of active chimneys. <i>Rimicaris exoculata</i> aggregates on active diffusers and affect the mineralization processes. Morphological comparison between the three carid species enables to recognize three different levels in their trophic adaptation. <i>Rimicaris exoculata</i> is considered as a primary consumer, <i>Chorocaris chacei</i> may be optionaly necrophagous and <i>Alvinocaris markensis</i> is necrophagous. The latter two species do not have the same spatial distribution as <i>Rimicaris</i>. We notice a possible relation between the different pigmentation of carids and their diet and we make assumptions about their ability in detecting trophic areas. The trophic specialization, represented by a morphological series of changes in the mouthparts, from <i>Alvinocaris</i> to <i>Rimicaris</i> through <i>Chorocaris</i>, goes with a gradual spread of a bilobed ocular organ, whose function is still unknown.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"L'énigme du comportement trophique des crevettes Alvinocarididae des sites hydrothermaux de la dorsale médio-atlantique = Trophic behaviour of Alvinocarididae shrimps from hydrothermal area of Mid-Atlantic Ridge","OrigTitleLangCode":"fr","OrigTitleLangCodeExtended":"fre","OrigTitleLangID":22,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1993,"MonPub":null,"DateUpdate":"2016-03-08","DateCreate":"2004-08-30","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":1},"refs":null,"anarec":{"AnaID":65538,"PubliDate":1993,"Pagination":"535-571 (8 plates)","XtraPublOfAnaID":null,"ISBN":null,"Volume":"34","Issue":"4","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42348,"SerRR":"Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris.  ISSN 0007-9723; e-ISSN 2262-3094","StandardTitleSer":"Cahiers de Biologie Marine","ISSN":"0007-9723","AbbrevSer":"Cah. Biol. 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