{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,27]],"date-time":"2026-01-27T11:36:14Z","timestamp":1769513774711,"version":"3.49.0"},"reference-count":54,"publisher":"FapUNIFESP (SciELO)","issue":"1","license":[{"start":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T00:00:00Z","timestamp":1704067200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T00:00:00Z","timestamp":1704067200000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T00:00:00Z","timestamp":1704067200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Rev. Bras. Parasitol. Vet."],"abstract":"<jats:p>Abstract The big-headed Amazon River turtle, Peltocephalus dumerilianus, is endemic to the Orinoco and Amazon River basins. It is a food source for local communities, often unsustainably. Knowledge about P. dumerilianus\u2019 parasitological fauna and host-parasite relationships is limited. Thus, ecological aspects of gastrointestinal parasitism in this species were investigated. Helminths were found in the gastrointestinal tract of 21 turtles, morphologically identified, and infection descriptors calculated. All animals harbored helminths: nematodes Ancyracanthus pinnatifidus, Paratractis hystrix, Atractis trematophila, Klossinemella conciliatus indeterminate three Klossinemella species, and digeneans Nematophila grandis, Helicotrema spirale, and Telorchis hagmanni. The highest parasite load occurred in the large intestine, followed by the small intestine and stomach. Shell length directly correlated with parasite burden of heteroxenic helminths, with males having higher burden than females. This is the first record of A. trematophila, K. conciliatus, and T. hagmanni in P. dumerilianus, and new location record for A. trematophila, P. hystrix, N. grandis, H. spirale, and T. hagmanni. Three potentially new Klossinemella species are presented.<\/jats:p>","DOI":"10.1590\/s1984-29612024013","type":"journal-article","created":{"date-parts":[[2024,2,5]],"date-time":"2024-02-05T10:01:01Z","timestamp":1707127261000},"source":"Crossref","is-referenced-by-count":1,"title":["Gastrointestinal parasites of Peltocephalus dumerilianus (Testudines: Podocnemididae) from Ja\u00fa National Park, Brazilian Amazon"],"prefix":"10.1590","volume":"33","author":[{"given":"Luciana Raffi","family":"Menegaldo","sequence":"first","affiliation":[{"name":"Universidade Estadual Paulista, Brasil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carmen Andrea","family":"Arias-Pacheco","sequence":"additional","affiliation":[{"name":"Universidade Estadual Paulista, Brasil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Patricia Parreira","family":"Perin","sequence":"additional","affiliation":[{"name":"Universidade Estadual Paulista, Brasil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jos\u00e9 Hairton","family":"Tebaldi","sequence":"additional","affiliation":[{"name":"Universidade Estadual Paulista, Brasil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3958-7227","authenticated-orcid":false,"given":"Estevam Guilherme Lux","family":"Hoppe","sequence":"additional","affiliation":[{"name":"Universidade Estadual Paulista, Brasil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"530","published-online":{"date-parts":[[2024]]},"reference":[{"key":"ref1","first-page":"1","article-title":"Dois novos hospedadores de Nematophila grande (Diesing, 1839) (Trematoda; Paramphistomoidea)","volume":"52","author":"Alho CJR","year":"1964","journal-title":"Bol Mus Para Emilio Goeldi"},{"issue":"3","key":"ref2","first-page":"233","article-title":"Endocrine and neuroendocrine host-parasite relationships","volume":"3","author":"Beckage NE","year":"1993","journal-title":"Receptor"},{"issue":"3","key":"ref3","doi-asserted-by":"crossref","first-page":"433","DOI":"10.1111\/aec.12695","article-title":"A review of the role of parasites in the ecology of reptiles and amphibians","volume":"44","author":"Bower DS","year":"2019","journal-title":"Austral Ecol"},{"issue":"3","key":"ref4","doi-asserted-by":"crossref","first-page":"426","DOI":"10.2307\/3279152","article-title":"Neodeuterobaris pritchardae gen. et sp. n. 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