{"refrec":{"BRefID":312859,"RR":"<b>Tchesunov, A.V.</b> (2015). Free-living nematode species (Nematoda) dwelling in hydrothermal sites of the North Mid-Atlantic Ridge. <i>Helgol. Mar. Res. 69(4)</i>: 343-384. <a href=\"https://dx.doi.org/10.1007/s10152-015-0443-6\" target=\"_blank\">https://dx.doi.org/10.1007/s10152-015-0443-6</a>","BEntID":305223,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Helgol. Mar. Res. 69(4)</i>: 343-384. <a href=\"https://dx.doi.org/10.1007/s10152-015-0443-6\" target=\"_blank\">https://dx.doi.org/10.1007/s10152-015-0443-6</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Tchesunov, A.V.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Tchesunov, A.V.","Englishabstract":"Morphological descriptions of seven free-living nematode species from hydrothermal sites of the Mid-Atlantic Ridge are presented. Four of them are new for science: <em class=\"EmphasisTypeItalic \">Paracanthonchus olgae</em> sp. n. (Chromadorida, Cyatholaimidae), <em class=\"EmphasisTypeItalic \">Prochromadora helenae</em> sp. n. (Chromadorida, Chromadoridae), <em class=\"EmphasisTypeItalic \">Prochaetosoma ventriverruca</em> sp. n. (Desmodorida, Draconematidae) and <em class=\"EmphasisTypeItalic \">Leptolaimus hydrothermalis</em> sp. n. (Plectida, Leptolaimidae). Two species have been previously recorded in hydrothermal habitats, and one species is recorded for the first time in such an environment. <em class=\"EmphasisTypeItalic \">Oncholaimus scanicus</em> (Enoplida, Oncholaimidae) was formerly known from only the type locality in non-hydrothermal shallow milieu of the Norway Sea. <em class=\"EmphasisTypeItalic \">O. scanicus</em> is a very abundant species in Menez Gwen, Lucky Strike and Lost City hydrothermal sites, and population of the last locality differs from other two in some morphometric characteristics. <em class=\"EmphasisTypeItalic \">Desmodora marci</em> (Desmodorida, Desmodoridae) was previously known from other remote deep-sea hydrothermal localities in south-western and north-eastern Pacific. <em class=\"EmphasisTypeItalic \">Halomonhystera vandoverae</em> (Monhysterida, Monhysteridae) was described and repeatedly found in mass in Snake Pit hydrothermal site. The whole hydrothermal nematode assemblages are featured by low diversity in comparison with either shelf or deep-sea non-hydrothermal communities. The nematode species list of the Atlantic hydrothermal vents consists of representatives of common shallow-water genera; the new species are also related to some shelf species. On the average, the hydrothermal species differ from those of slope and abyssal plains of comparable depths by larger sizes, diversity of buccal structures, presence of food content in the gut and ripe eggs in uteri.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Free-living nematode species (Nematoda) dwelling in hydrothermal sites of the North Mid-Atlantic Ridge","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-05-16 01:33:09.398940","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Descriptions; Hydrothermal vents; Marine biodiversity; Mid-Atlantic Ridge; Taxonomy ","OtherDescriptors":null,"Notes":null,"AnaPub":2015,"MonPub":null,"DateUpdate":"2019-07-17","DateCreate":"2019-07-17","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000364508400004","VABBcode":null,"OpenAcc":0,"DOI":"10.1007/s10152-015-0443-6"},"refs":null,"anarec":{"AnaID":312859,"PubliDate":2015,"Pagination":"343-384","XtraPublOfAnaID":null,"ISBN":null,"Volume":"69","Issue":"4","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45639,"SerRR":"Helgoland Marine Research. Springer: Berlin; Heidelberg.  ISSN 1438-387X; e-ISSN 1438-3888","StandardTitleSer":"Helgoland Marine Research","ISSN":"1438-387X","AbbrevSer":"Helgol. Mar. 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