Filling ecological gaps in Chilean Central Patagonia: Patterns of biodiversity and distribution of sublittoral benthic invertebrates from the Katalalixar National Reserve waters (~48°S)
Knowledge about the composition, diversity, and geographic distribution of marine species is important for successful conservation planning in the future. The ecological and zoogeographic patterns of benthic communities in Central Patagonia have been scarcely studied, due to the remoteness of the ar...
Published in: | Frontiers in Marine Science |
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Frontiers Media S.A.
2022
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Online Access: | https://doi.org/10.3389/fmars.2022.951195 https://doaj.org/article/6a4f060fbd224850b1c19fdc960f8821 |
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ftdoajarticles:oai:doaj.org/article:6a4f060fbd224850b1c19fdc960f8821 2023-05-15T13:44:17+02:00 Filling ecological gaps in Chilean Central Patagonia: Patterns of biodiversity and distribution of sublittoral benthic invertebrates from the Katalalixar National Reserve waters (~48°S) Germán Zapata-Hernández Matthias Gorny Américo Montiel 2022-12-01T00:00:00Z https://doi.org/10.3389/fmars.2022.951195 https://doaj.org/article/6a4f060fbd224850b1c19fdc960f8821 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmars.2022.951195/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2022.951195 https://doaj.org/article/6a4f060fbd224850b1c19fdc960f8821 Frontiers in Marine Science, Vol 9 (2022) marine biodiversity sublittoral benthos zoogeography channels and fjords chilean patagonia remotely operate vehicle Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2022 ftdoajarticles https://doi.org/10.3389/fmars.2022.951195 2022-12-30T19:43:14Z Knowledge about the composition, diversity, and geographic distribution of marine species is important for successful conservation planning in the future. The ecological and zoogeographic patterns of benthic communities in Central Patagonia have been scarcely studied, due to the remoteness of the area combined with harsh weather conditions. During the past years, five scientific expeditions were executed in order to study the biodiversity, ecological, and biogeographical patterns of benthic invertebrates in the Katalalixar National Reserve (KNR) waters, Central Patagonia (~48°S). Our analyses comprised images from 26 video transects using a remotely operated vehicle, completed with biological sampling at four stations by means of SCUBA diving, covering a bathymetric range from 10 to 220 m depth. Stations covered the entire longitudinal range of the KNR, from inner channels to the Pacific Ocean. A total of 187 benthic invertebrate taxa were identified as OTUs (operational taxonomic units), with mollusks being the most conspicuous taxonomic group (18.7%), followed by sponges, echinoderms (16.6% each), and arthropods (14.4%). A higher OTU richness (42 to 51 OTUs) was observed in the central and western parts of the KNR waters. Analyses of the β-diversity indicated a similar level of species turnover between shallow, intermediate, and deep strata, as well as an important turnover between different locations. Dissimilitudes in the assemblage structure of invertebrates were explained mainly by changes in substrate types and longitude. Most of the species (49%) found in the KNR waters showed a wide latitudinal distribution range along the Eastern South Pacific Ocean (ESP) and the Chilean Patagonia of fjords and channels (CPFC) (~18°S and ~56°S), whereas 9.4% of the species have a wide distribution range between the CPFC and south of the Antarctic polar front (SAPF) (~42°S and ~65°S). Since only 16.7% of the species identified in the KNR are distributed exclusively in CPFC waters, it may be considered a transition area ... Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic Pacific Patagonia The Antarctic Frontiers in Marine Science 9 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
marine biodiversity sublittoral benthos zoogeography channels and fjords chilean patagonia remotely operate vehicle Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
marine biodiversity sublittoral benthos zoogeography channels and fjords chilean patagonia remotely operate vehicle Science Q General. Including nature conservation geographical distribution QH1-199.5 Germán Zapata-Hernández Matthias Gorny Américo Montiel Filling ecological gaps in Chilean Central Patagonia: Patterns of biodiversity and distribution of sublittoral benthic invertebrates from the Katalalixar National Reserve waters (~48°S) |
topic_facet |
marine biodiversity sublittoral benthos zoogeography channels and fjords chilean patagonia remotely operate vehicle Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
Knowledge about the composition, diversity, and geographic distribution of marine species is important for successful conservation planning in the future. The ecological and zoogeographic patterns of benthic communities in Central Patagonia have been scarcely studied, due to the remoteness of the area combined with harsh weather conditions. During the past years, five scientific expeditions were executed in order to study the biodiversity, ecological, and biogeographical patterns of benthic invertebrates in the Katalalixar National Reserve (KNR) waters, Central Patagonia (~48°S). Our analyses comprised images from 26 video transects using a remotely operated vehicle, completed with biological sampling at four stations by means of SCUBA diving, covering a bathymetric range from 10 to 220 m depth. Stations covered the entire longitudinal range of the KNR, from inner channels to the Pacific Ocean. A total of 187 benthic invertebrate taxa were identified as OTUs (operational taxonomic units), with mollusks being the most conspicuous taxonomic group (18.7%), followed by sponges, echinoderms (16.6% each), and arthropods (14.4%). A higher OTU richness (42 to 51 OTUs) was observed in the central and western parts of the KNR waters. Analyses of the β-diversity indicated a similar level of species turnover between shallow, intermediate, and deep strata, as well as an important turnover between different locations. Dissimilitudes in the assemblage structure of invertebrates were explained mainly by changes in substrate types and longitude. Most of the species (49%) found in the KNR waters showed a wide latitudinal distribution range along the Eastern South Pacific Ocean (ESP) and the Chilean Patagonia of fjords and channels (CPFC) (~18°S and ~56°S), whereas 9.4% of the species have a wide distribution range between the CPFC and south of the Antarctic polar front (SAPF) (~42°S and ~65°S). Since only 16.7% of the species identified in the KNR are distributed exclusively in CPFC waters, it may be considered a transition area ... |
format |
Article in Journal/Newspaper |
author |
Germán Zapata-Hernández Matthias Gorny Américo Montiel |
author_facet |
Germán Zapata-Hernández Matthias Gorny Américo Montiel |
author_sort |
Germán Zapata-Hernández |
title |
Filling ecological gaps in Chilean Central Patagonia: Patterns of biodiversity and distribution of sublittoral benthic invertebrates from the Katalalixar National Reserve waters (~48°S) |
title_short |
Filling ecological gaps in Chilean Central Patagonia: Patterns of biodiversity and distribution of sublittoral benthic invertebrates from the Katalalixar National Reserve waters (~48°S) |
title_full |
Filling ecological gaps in Chilean Central Patagonia: Patterns of biodiversity and distribution of sublittoral benthic invertebrates from the Katalalixar National Reserve waters (~48°S) |
title_fullStr |
Filling ecological gaps in Chilean Central Patagonia: Patterns of biodiversity and distribution of sublittoral benthic invertebrates from the Katalalixar National Reserve waters (~48°S) |
title_full_unstemmed |
Filling ecological gaps in Chilean Central Patagonia: Patterns of biodiversity and distribution of sublittoral benthic invertebrates from the Katalalixar National Reserve waters (~48°S) |
title_sort |
filling ecological gaps in chilean central patagonia: patterns of biodiversity and distribution of sublittoral benthic invertebrates from the katalalixar national reserve waters (~48°s) |
publisher |
Frontiers Media S.A. |
publishDate |
2022 |
url |
https://doi.org/10.3389/fmars.2022.951195 https://doaj.org/article/6a4f060fbd224850b1c19fdc960f8821 |
geographic |
Antarctic Pacific Patagonia The Antarctic |
geographic_facet |
Antarctic Pacific Patagonia The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Frontiers in Marine Science, Vol 9 (2022) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmars.2022.951195/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2022.951195 https://doaj.org/article/6a4f060fbd224850b1c19fdc960f8821 |
op_doi |
https://doi.org/10.3389/fmars.2022.951195 |
container_title |
Frontiers in Marine Science |
container_volume |
9 |
_version_ |
1766199739547648000 |