Doubling the known diversity of a remote island fauna: marine bivalves of the Juan Fernández and Desventuradas oceanic archipelagos (Southeastern Pacific Ocean)
Juan Fernández and Desventuradas are two oceanic archipelagos located in the southeastern Pacific Ocean far off the Chilean coast that received protected status as marine parks in 2016. Remoteness and access difficulty contributed to historically poor biodiversity sampling and limited associated res...
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ftdoajarticles:oai:doaj.org/article:ad53011bb42f4b749d1a7e3010c43976 2024-09-15T17:48:14+00:00 Doubling the known diversity of a remote island fauna: marine bivalves of the Juan Fernández and Desventuradas oceanic archipelagos (Southeastern Pacific Ocean) Diego Gabriel Zelaya Marina Güller Rüdiger Bieler 2024-06-01T00:00:00Z https://doi.org/10.7717/peerj.17305 https://doaj.org/article/ad53011bb42f4b749d1a7e3010c43976 EN eng PeerJ Inc. https://peerj.com/articles/17305.pdf https://peerj.com/articles/17305/ https://doaj.org/toc/2167-8359 doi:10.7717/peerj.17305 2167-8359 https://doaj.org/article/ad53011bb42f4b749d1a7e3010c43976 PeerJ, Vol 12, p e17305 (2024) Biodiversity Endemism Expeditions Marine protected areas Mollusca Collections Medicine R Biology (General) QH301-705.5 article 2024 ftdoajarticles https://doi.org/10.7717/peerj.17305 2024-08-05T17:49:04Z Juan Fernández and Desventuradas are two oceanic archipelagos located in the southeastern Pacific Ocean far off the Chilean coast that received protected status as marine parks in 2016. Remoteness and access difficulty contributed to historically poor biodiversity sampling and limited associated research. This is particularly noticeable for bivalves, with most prior regional publications focused on single taxa or un-illustrated checklists. This study investigates marine bivalves collected between the intertidal and 415 m depth during (1) the 1997 IOC97 expedition aboard the M/V Carlos Porter, with special focus on scuba-collected micro-mollusks of both archipelagos, (2) two expeditions by the R/V Anton Bruun (Cruise 12/1965 and Cruise 17/1966), and (3) Cruise 21 of USNS Eltanin under the United States Antarctic Program, which sampled at Juan Fernández in 1965. Also, relevant historical material of the British H.M.S. Challenger Expedition (1873–1876), the Swedish Pacific Expedition (1916–1917), and by German zoologist Ludwig H. Plate (1893–1895) is critically revised. A total of 48 species are recognized and illustrated, including 19 new species (described herein) and six other potentially new species. The presence of two species mentioned in the literature for the region (Aulacomya atra and Saccella cuneata) could not be confirmed. The genera Verticipronus and Halonympha are reported for the first time from the Eastern Pacific, as are Anadara and Condylocardia from Chilean waters. Lectotypes are designated for Arca (Barbatia) platei and Mytilus algosus. These findings double the number of extant bivalve species known from the Juan Fernández and Desventuradas archipelagos, highlighting the lack of attention these islands groups have received in the past. A high percentage of species endemic to one or both archipelagos are recognized herein, accounting for almost 78% of the total. The newly recognized level of bivalve endemism supports the consideration of Juan Fernández and Desventuradas as two different ... Article in Journal/Newspaper Antarc* Antarctic United States Antarctic Program Directory of Open Access Journals: DOAJ Articles PeerJ 12 e17305 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Biodiversity Endemism Expeditions Marine protected areas Mollusca Collections Medicine R Biology (General) QH301-705.5 |
spellingShingle |
Biodiversity Endemism Expeditions Marine protected areas Mollusca Collections Medicine R Biology (General) QH301-705.5 Diego Gabriel Zelaya Marina Güller Rüdiger Bieler Doubling the known diversity of a remote island fauna: marine bivalves of the Juan Fernández and Desventuradas oceanic archipelagos (Southeastern Pacific Ocean) |
topic_facet |
Biodiversity Endemism Expeditions Marine protected areas Mollusca Collections Medicine R Biology (General) QH301-705.5 |
description |
Juan Fernández and Desventuradas are two oceanic archipelagos located in the southeastern Pacific Ocean far off the Chilean coast that received protected status as marine parks in 2016. Remoteness and access difficulty contributed to historically poor biodiversity sampling and limited associated research. This is particularly noticeable for bivalves, with most prior regional publications focused on single taxa or un-illustrated checklists. This study investigates marine bivalves collected between the intertidal and 415 m depth during (1) the 1997 IOC97 expedition aboard the M/V Carlos Porter, with special focus on scuba-collected micro-mollusks of both archipelagos, (2) two expeditions by the R/V Anton Bruun (Cruise 12/1965 and Cruise 17/1966), and (3) Cruise 21 of USNS Eltanin under the United States Antarctic Program, which sampled at Juan Fernández in 1965. Also, relevant historical material of the British H.M.S. Challenger Expedition (1873–1876), the Swedish Pacific Expedition (1916–1917), and by German zoologist Ludwig H. Plate (1893–1895) is critically revised. A total of 48 species are recognized and illustrated, including 19 new species (described herein) and six other potentially new species. The presence of two species mentioned in the literature for the region (Aulacomya atra and Saccella cuneata) could not be confirmed. The genera Verticipronus and Halonympha are reported for the first time from the Eastern Pacific, as are Anadara and Condylocardia from Chilean waters. Lectotypes are designated for Arca (Barbatia) platei and Mytilus algosus. These findings double the number of extant bivalve species known from the Juan Fernández and Desventuradas archipelagos, highlighting the lack of attention these islands groups have received in the past. A high percentage of species endemic to one or both archipelagos are recognized herein, accounting for almost 78% of the total. The newly recognized level of bivalve endemism supports the consideration of Juan Fernández and Desventuradas as two different ... |
format |
Article in Journal/Newspaper |
author |
Diego Gabriel Zelaya Marina Güller Rüdiger Bieler |
author_facet |
Diego Gabriel Zelaya Marina Güller Rüdiger Bieler |
author_sort |
Diego Gabriel Zelaya |
title |
Doubling the known diversity of a remote island fauna: marine bivalves of the Juan Fernández and Desventuradas oceanic archipelagos (Southeastern Pacific Ocean) |
title_short |
Doubling the known diversity of a remote island fauna: marine bivalves of the Juan Fernández and Desventuradas oceanic archipelagos (Southeastern Pacific Ocean) |
title_full |
Doubling the known diversity of a remote island fauna: marine bivalves of the Juan Fernández and Desventuradas oceanic archipelagos (Southeastern Pacific Ocean) |
title_fullStr |
Doubling the known diversity of a remote island fauna: marine bivalves of the Juan Fernández and Desventuradas oceanic archipelagos (Southeastern Pacific Ocean) |
title_full_unstemmed |
Doubling the known diversity of a remote island fauna: marine bivalves of the Juan Fernández and Desventuradas oceanic archipelagos (Southeastern Pacific Ocean) |
title_sort |
doubling the known diversity of a remote island fauna: marine bivalves of the juan fernández and desventuradas oceanic archipelagos (southeastern pacific ocean) |
publisher |
PeerJ Inc. |
publishDate |
2024 |
url |
https://doi.org/10.7717/peerj.17305 https://doaj.org/article/ad53011bb42f4b749d1a7e3010c43976 |
genre |
Antarc* Antarctic United States Antarctic Program |
genre_facet |
Antarc* Antarctic United States Antarctic Program |
op_source |
PeerJ, Vol 12, p e17305 (2024) |
op_relation |
https://peerj.com/articles/17305.pdf https://peerj.com/articles/17305/ https://doaj.org/toc/2167-8359 doi:10.7717/peerj.17305 2167-8359 https://doaj.org/article/ad53011bb42f4b749d1a7e3010c43976 |
op_doi |
https://doi.org/10.7717/peerj.17305 |
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PeerJ |
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12 |
container_start_page |
e17305 |
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1810289393103011840 |