{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,23]],"date-time":"2026-07-23T18:08:29Z","timestamp":1784830109420,"version":"3.55.0"},"reference-count":81,"publisher":"Cambridge University Press (CUP)","issue":"3","license":[{"start":{"date-parts":[[2012,9,12]],"date-time":"2012-09-12T00:00:00Z","timestamp":1347408000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Helminthol."],"published-print":{"date-parts":[[2013,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>We report on the intestinal helminth fauna of 56 South American sea lions, <jats:italic>Otaria flavescens<\/jats:italic>, and 5 South American fur seals, <jats:italic>Arctocephalus australis<\/jats:italic>, from northern Patagonia, Argentina. A total of 97,325 helminth specimens were collected from sea lions. Gravid individuals were represented by 6 species of parasites: 1 digenean (<jats:italic>Ascocotyle<\/jats:italic> (<jats:italic>Ascocotyle<\/jats:italic>) <jats:italic>patagoniensis<\/jats:italic>), 1 cestode (<jats:italic>Diphyllobothrium<\/jats:italic> spp.), 3 nematodes (<jats:italic>Uncinaria hamiltoni<\/jats:italic>, <jats:italic>Contracaecum ogmorhini s.s.<\/jats:italic>, <jats:italic>Pseudoterranova cattani<\/jats:italic>) and 1 acanthocephalan (<jats:italic>Corynosoma australe<\/jats:italic>). In addition, third-stage larvae of 2 nematodes (<jats:italic>Contracaecum<\/jats:italic> sp. and <jats:italic>Anisakis<\/jats:italic> sp. type I) and 3 juvenile acanthocephalans (<jats:italic>Andracantha<\/jats:italic> sp., <jats:italic>Profilicollis chasmagnathi<\/jats:italic> and <jats:italic>Corynosoma cetaceum<\/jats:italic>) were also collected. <jats:italic>Andracantha<\/jats:italic> sp., <jats:italic>C. ogmorhini s.s.<\/jats:italic> and <jats:italic>P.<\/jats:italic><jats:italic>chasmagnathi<\/jats:italic> represent new host records. A total of 1516 helminth specimens were collected from fur seals. Gravid individuals were represented by three species of parasites, namely, <jats:italic>Diphyllobothrium<\/jats:italic> spp., <jats:italic>C. ogmorhini s.s.<\/jats:italic> and <jats:italic>C. australe<\/jats:italic>. In addition, larvae of <jats:italic>Contracaecum<\/jats:italic> sp. and <jats:italic>P. cattani<\/jats:italic>, juveniles of <jats:italic>C. cetaceum<\/jats:italic> and immature cestodes (Tetrabothriidae gen. sp.) were also collected. <jats:italic>Corynosoma australe<\/jats:italic> was the most prevalent and abundant parasite in both hosts, accounting for &gt;90% of all specimens. Sea lions and furs seals from northern Patagonia harbour the intestinal helminth communities that could be predicted for otariids, i.e. the combination of species of the genera <jats:italic>Corynosoma<\/jats:italic>, <jats:italic>Diphyllobothrium<\/jats:italic>, <jats:italic>Pseudoterranova<\/jats:italic>, <jats:italic>Contracaecum<\/jats:italic> and, in pups, <jats:italic>Uncinaria<\/jats:italic>. Additionally, both species of otariid are apparently unsuitable hosts (i.e. non-hosts) for as many as five parasite taxa. The inclusion or exclusion of these species affects estimation of species richness at both component community (11 versus 6 species in sea lions; 7 versus 3 species in fur seals) and infracommunity (mean: 3.1 versus 2.6 in sea lions; 2.2 versus 1.7 species) levels. Information about the reproductive status of helminth species is often lacking in parasitological surveys on otariids and other marine vertebrates, but it is of significance to improve precision in parascript studies or ecological meta-analyses.<\/jats:p>","DOI":"10.1017\/s0022149x12000454","type":"journal-article","created":{"date-parts":[[2012,9,12]],"date-time":"2012-09-12T05:51:35Z","timestamp":1347429095000},"page":"336-347","source":"Crossref","is-referenced-by-count":28,"title":["Intestinal helminth fauna of the South American sea lion <i>Otaria flavescens<\/i> and fur seal <i>Arctocephalus australis<\/i> from northern Patagonia, Argentina"],"prefix":"10.1017","volume":"87","author":[{"given":"J.S.","family":"Hern\u00e1ndez-Orts","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"F.E.","family":"Montero","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A.","family":"Juan- Garc\u00eda","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"N.A.","family":"Garc\u00eda","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"E.A.","family":"Crespo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.A.","family":"Raga","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"F.J.","family":"Aznar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2012,9,12]]},"reference":[{"key":"S0022149X12000454_ref81","first-page":"1","volume-title":"Synopses of the Antarctic benthos","volume":"3","author":"Zdzitowiecki","year":"1991"},{"key":"S0022149X12000454_ref80","first-page":"167","article-title":"New data on the morphology and distribution of two acanthocephalans, Andracantha baylisi (Zdzitowiecki, 1986) comb. n. and Corynosoma australe Johnston, 1937","volume":"34","author":"Zdzitowiecki","year":"1989","journal-title":"Acta Parasitologica Polonica"},{"key":"S0022149X12000454_ref78","first-page":"447","volume-title":"Mammals of the world, FAO Fisheries Series 5 (IV)","author":"Vaz-Ferreira","year":"1982"},{"key":"S0022149X12000454_ref75","first-page":"27","article-title":"Contracaecum ogmorhini s.s. 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