Metazoan Parasite Communities of Two Sympatric Shortnose Chimeras (Holocephali: Chimaeridae) from Deep Waters Associated with the Humboldt Current System: Ancient Fishes Harbor Ancient Parasites

Vista sencilla de ítem
dc.contributor.authorOliva, Marcelo E
dc.contributor.authorNacari, Luis A
dc.contributor.authorEspinola-Novelo, Juan F
dc.date.accessioned2026-08-28T01:49:12Z
dc.date.available2026-08-28T01:49:12Z
dc.date.issued2025
dc.description.abstractA total of 61 specimens of deep-sea chimaeras (Hydrolagus melanophasma = 41; Chimaera sp. = 20) were obtained during September 2017 as by-catch of the local fishery of the Patagonian toothfish (Dissostichus eleginoides, Pisces: Nototheniidae) along the northern Chilean coasts (≈22°20′ S) at depths ranging from 950 to 1500 m using a deep-sea longline. Nine species of metazoan parasites were found in H. melanophasma and seven in Chimaera sp. Four species were shared between both host species. Gyrocotyle sp.1 (Cestodaria) and Multicalyx elegans (Aspidogastrea) showed the higher prevalence H. melanophasma (68.3% and 65.38%, respectively), whereas Plectognathotrema hydrolagi (Digenea), Gyrocotyle sp.1 (Cestodaria), and Chimaericola sp. (Monogenea) showed higher prevalence in Chimaera sp. (90%, 55% and 55%, respectively). Beta diversity analysis reveals that the parasite communities of these two related and sympatric species are strongly differentiated. Our results suggest a strong relationship between the ancient Holocephali, which harbor ancient parasites belonging to Rugogasteridae and Multicalycidae (Aspidogastrea), and two Cestodaria species. Chimaera spp. are also parasitized by some highly specific monogeneans, such as Chimaericola spp. Our results demonstrate the differences in the parasite community structures—both of ecto- and endoparasites—of two related and sympatric hosts.
dc.description.sponsorshipMINEDUC-UA project [ANT 1855]; Plan de Fortalecimiento Universidades Estatales-Chile [RED21992]; Instituto Milenio de Oceanografia IMO-Chile Grant [AIM23-0003, CVU 351170]
dc.identifier.doi10.3390/d17090601
dc.identifier.issn1424-2818
dc.identifier.urihttps://repositorioabierto.uantof.cl/handle/uantof/734
dc.language.isoen
dc.publisherMDPI
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceDiversity
dc.subjectdeep-sea chimaeras
dc.subjectparasites
dc.subjectatacama trench
dc.subjecthumboldt current
dc.subjectbeta diversity
dc.titleMetazoan Parasite Communities of Two Sympatric Shortnose Chimeras (Holocephali: Chimaeridae) from Deep Waters Associated with the Humboldt Current System: Ancient Fishes Harbor Ancient Parasites
dc.typeArticle
oaire.citation.volume17
oaire.citationIssue9
organization.identifier.rorhttps://ror.org/04eyc6d95
organization.legalNameUniversidad de Antofagasta
uantof.identificator.instituteInstituto de Ciencias Naturales Alexander von Humboldt
Archivos
Bloque original
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
10.3390_d17090601.pdf
Tamaño:
708.58 KB
Formato:
Adobe Portable Document Format
Descargar
Bloque de licencias
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
license.txt
Tamaño:
1.71 KB
Formato:
Item-specific license agreed to upon submission
Descripción:
Descargar
Colecciones
Instituto de Ciencias Naturales Alexander von Humboldt