{"refrec":{"BRefID":330737,"RR":"<b>Avendaño, O.; Roura, Á.; Cedillo-Robles, C.E.; González, Á.F.; Rodríguez-Canul, R.; Velázquez-Abunader, I.; Guerra, A.</b> (2020). <i>Octopus americanus</i>: a cryptic species of the <i>O. vulgaris</i> species complex redescribed from the Caribbean. <i>Aquat. Ecol. 54(4)</i>: 909-925. <a href=\"https://dx.doi.org/10.1007/s10452-020-09778-6\" target=\"_blank\">https://dx.doi.org/10.1007/s10452-020-09778-6</a>","BEntID":324347,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Aquat. Ecol. 54(4)</i>: 909-925. <a href=\"https://dx.doi.org/10.1007/s10452-020-09778-6\" target=\"_blank\">https://dx.doi.org/10.1007/s10452-020-09778-6</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Avendaño, O.; Roura, Á.; Cedillo-Robles, C.E.; González, Á.F.; Rodríguez-Canul, R.; Velázquez-Abunader, I.; Guerra, A.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Avendaño, O. <i>et al.</i>","Englishabstract":"The common octopus <i>Octopus vulgaris</i> Cuvier, 1797, once considered a cosmopolitan species, is a species complex composed by six species: <i>O. tetricus,</i> O. cf <i>tetricus</i> and <i>O. sinensis</i> in the Pacific; type I and II, in the West Atlantic; and type III in the Indian Ocean around South Africa. The tropical western central Atlantic is an important octopus fishing ground targeting <i>O. maya</i>, <i>O. insularis</i>, and a cryptic species considered to be <i>O. vulgaris</i> type I. In order to clarify the identification of this octopod, phylogenetic analyses were carried out with mitochondrial (COI and 16S) and nuclear (rhodopsin) genes, together with morphological analyses of 16 specimens caught in the northeastern continental shelf of Yucatan (Mexico). The main morphological traits differing from <i>O</i>. <i>vulgaris</i> were the presence, position and size of enlarged suckers and hectocotylus sucker number in males. Genetic distances and haplotype networks of the species complex were estimated using 285 COI sequences of nine <i>Octopus</i> species from 14 different locations around the world. The octopod sequences from Yucatan clustered within a monophyletic group that included sequences of <i>O. vulgaris</i> type II for the three genes analyzed. Phylogenetic distances with other members of the complex ranged between 2.71 and 3.89% using COI data. These genetic results support the presence of <i>Octopus americanus</i> Monfort, 1802 (formerly known as <i>O. vulgaris</i> type II) along the Yucatan continental shelf, a new octopod extending from the north of Argentina to the northwest coast of the USA.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"<i>Octopus americanus</i>: a cryptic species of the <i>O. vulgaris</i> species complex redescribed from the Caribbean","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-15 01:33:26.491026","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Octopus americanus; O. vulgaris complex; Genetic analysis; Morphometry; Cryptic species; Caribbean Sea","OtherDescriptors":null,"Notes":null,"AnaPub":2020,"MonPub":null,"DateUpdate":"2020-11-06","DateCreate":"2020-11-06","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000552596600001","VABBcode":null,"OpenAcc":0,"DOI":"10.1007/s10452-020-09778-6"},"refs":null,"anarec":{"AnaID":330737,"PubliDate":2020,"Pagination":"909-925","XtraPublOfAnaID":null,"ISBN":null,"Volume":"54","Issue":"4","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42197,"SerRR":"Aquatic Ecology. 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