Metazoan parasite communities of two deep-sea elasmobranchs: the southern lanternshark, Etmopterus granulosus, and the largenose catshark, Apristurus nasutus, in the Southeastern Pacific Ocean
Two deep-sea shark species were obtained as by-catch of the local fishery of the Patagonian toothfish, Dissostichus eleginoides, at depths ranging from 1000 to 2200 m off central and northern Chile. A total of 19 parasite taxa were found in 133 specimens of the southern lanternshark, Etmopterus gran...
Published in: | Parasite |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
EDP Sciences
2018
|
Subjects: | |
Online Access: | https://doi.org/10.1051/parasite/2018054 https://doaj.org/article/d40eff1926ac483c8088f02b99e2178c |
id |
ftdoajarticles:oai:doaj.org/article:d40eff1926ac483c8088f02b99e2178c |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:d40eff1926ac483c8088f02b99e2178c 2024-01-07T09:45:51+01:00 Metazoan parasite communities of two deep-sea elasmobranchs: the southern lanternshark, Etmopterus granulosus, and the largenose catshark, Apristurus nasutus, in the Southeastern Pacific Ocean Espínola-Novelo Juan F. Escribano Rubén Oliva Marcelo E. 2018-01-01T00:00:00Z https://doi.org/10.1051/parasite/2018054 https://doaj.org/article/d40eff1926ac483c8088f02b99e2178c EN eng EDP Sciences https://doi.org/10.1051/parasite/2018054 https://doaj.org/toc/1776-1042 1776-1042 doi:10.1051/parasite/2018054 https://doaj.org/article/d40eff1926ac483c8088f02b99e2178c Parasite, Vol 25, p 53 (2018) Deep-sea sharks metazoan parasites biodiversity Southeastern Pacific Ocean Infectious and parasitic diseases RC109-216 article 2018 ftdoajarticles https://doi.org/10.1051/parasite/2018054 2023-12-10T01:53:29Z Two deep-sea shark species were obtained as by-catch of the local fishery of the Patagonian toothfish, Dissostichus eleginoides, at depths ranging from 1000 to 2200 m off central and northern Chile. A total of 19 parasite taxa were found in 133 specimens of the southern lanternshark, Etmopterus granulosus, (n = 120) and largenose catshark, Apristurus nasutus, (n = 13). Fourteen taxa (four Monogenea, one Digenea, four Cestoda, one Nematoda, two Copepoda, one Annelida and one Thecostraca) were found in E. granulosus, whereas five taxa (one Monogenea, two Cestoda and two Nematoda) were found in A. nasutus. Representatives of Cestoda showed higher values of prevalence and a greater intensity of infection; this pattern is consistent with reports for elasmobranchs, but the monogenean richness was higher than that previously reported for related deep-sea sharks. Regarding E. granulosus, a positive and significant correlation between host length and abundance was found for six (four ectoparasites, one mesoparasite, and one endoparasite) of the 14 taxa recorded, but prevalence was significantly correlated with host length only for the monogenean Asthenocotyle sp. Although the sample size for A. nasutus was limited, we compared richness, abundance, diversity and evenness at the infracommunity and component community levels. All of these variables were higher for E. granulosus, but at the infracommunity level, abundance was higher for A. nasutus. All the parasite taxa (except two) represent new host and geographical records. Article in Journal/Newspaper Patagonian Toothfish Directory of Open Access Journals: DOAJ Articles Pacific Parasite 25 53 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Deep-sea sharks metazoan parasites biodiversity Southeastern Pacific Ocean Infectious and parasitic diseases RC109-216 |
spellingShingle |
Deep-sea sharks metazoan parasites biodiversity Southeastern Pacific Ocean Infectious and parasitic diseases RC109-216 Espínola-Novelo Juan F. Escribano Rubén Oliva Marcelo E. Metazoan parasite communities of two deep-sea elasmobranchs: the southern lanternshark, Etmopterus granulosus, and the largenose catshark, Apristurus nasutus, in the Southeastern Pacific Ocean |
topic_facet |
Deep-sea sharks metazoan parasites biodiversity Southeastern Pacific Ocean Infectious and parasitic diseases RC109-216 |
description |
Two deep-sea shark species were obtained as by-catch of the local fishery of the Patagonian toothfish, Dissostichus eleginoides, at depths ranging from 1000 to 2200 m off central and northern Chile. A total of 19 parasite taxa were found in 133 specimens of the southern lanternshark, Etmopterus granulosus, (n = 120) and largenose catshark, Apristurus nasutus, (n = 13). Fourteen taxa (four Monogenea, one Digenea, four Cestoda, one Nematoda, two Copepoda, one Annelida and one Thecostraca) were found in E. granulosus, whereas five taxa (one Monogenea, two Cestoda and two Nematoda) were found in A. nasutus. Representatives of Cestoda showed higher values of prevalence and a greater intensity of infection; this pattern is consistent with reports for elasmobranchs, but the monogenean richness was higher than that previously reported for related deep-sea sharks. Regarding E. granulosus, a positive and significant correlation between host length and abundance was found for six (four ectoparasites, one mesoparasite, and one endoparasite) of the 14 taxa recorded, but prevalence was significantly correlated with host length only for the monogenean Asthenocotyle sp. Although the sample size for A. nasutus was limited, we compared richness, abundance, diversity and evenness at the infracommunity and component community levels. All of these variables were higher for E. granulosus, but at the infracommunity level, abundance was higher for A. nasutus. All the parasite taxa (except two) represent new host and geographical records. |
format |
Article in Journal/Newspaper |
author |
Espínola-Novelo Juan F. Escribano Rubén Oliva Marcelo E. |
author_facet |
Espínola-Novelo Juan F. Escribano Rubén Oliva Marcelo E. |
author_sort |
Espínola-Novelo Juan F. |
title |
Metazoan parasite communities of two deep-sea elasmobranchs: the southern lanternshark, Etmopterus granulosus, and the largenose catshark, Apristurus nasutus, in the Southeastern Pacific Ocean |
title_short |
Metazoan parasite communities of two deep-sea elasmobranchs: the southern lanternshark, Etmopterus granulosus, and the largenose catshark, Apristurus nasutus, in the Southeastern Pacific Ocean |
title_full |
Metazoan parasite communities of two deep-sea elasmobranchs: the southern lanternshark, Etmopterus granulosus, and the largenose catshark, Apristurus nasutus, in the Southeastern Pacific Ocean |
title_fullStr |
Metazoan parasite communities of two deep-sea elasmobranchs: the southern lanternshark, Etmopterus granulosus, and the largenose catshark, Apristurus nasutus, in the Southeastern Pacific Ocean |
title_full_unstemmed |
Metazoan parasite communities of two deep-sea elasmobranchs: the southern lanternshark, Etmopterus granulosus, and the largenose catshark, Apristurus nasutus, in the Southeastern Pacific Ocean |
title_sort |
metazoan parasite communities of two deep-sea elasmobranchs: the southern lanternshark, etmopterus granulosus, and the largenose catshark, apristurus nasutus, in the southeastern pacific ocean |
publisher |
EDP Sciences |
publishDate |
2018 |
url |
https://doi.org/10.1051/parasite/2018054 https://doaj.org/article/d40eff1926ac483c8088f02b99e2178c |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Patagonian Toothfish |
genre_facet |
Patagonian Toothfish |
op_source |
Parasite, Vol 25, p 53 (2018) |
op_relation |
https://doi.org/10.1051/parasite/2018054 https://doaj.org/toc/1776-1042 1776-1042 doi:10.1051/parasite/2018054 https://doaj.org/article/d40eff1926ac483c8088f02b99e2178c |
op_doi |
https://doi.org/10.1051/parasite/2018054 |
container_title |
Parasite |
container_volume |
25 |
container_start_page |
53 |
_version_ |
1787427489855832064 |