Testing deep-sea biodiversity paradigms on abyssal nematode genera and Acantholaimus species
Biodiversity patterns in the deep sea have been extensively studied in the last decades. In this study, we investigated whether reputable concepts in deep-sea ecology also explain diversity and distribution patterns of nematode genera and species in the abyss. Among them, three paradigms were tackle...
Published in: | Deep Sea Research Part II: Topical Studies in Oceanography |
---|---|
Main Authors: | , , , , |
Other Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2018
|
Subjects: | |
Online Access: | https://biblio.ugent.be/publication/8560836 http://hdl.handle.net/1854/LU-8560836 https://doi.org/10.1016/j.dsr2.2016.12.005 https://biblio.ugent.be/publication/8560836/file/8609225 |
id |
ftunivgent:oai:archive.ugent.be:8560836 |
---|---|
record_format |
openpolar |
spelling |
ftunivgent:oai:archive.ugent.be:8560836 2023-06-11T04:14:39+02:00 Testing deep-sea biodiversity paradigms on abyssal nematode genera and Acantholaimus species Lins Pereira, Lidia da Silva, Maria Cristina Neres, Patrícia Esteves, André Morgado Vanreusel, Ann Brandt, Angelika Kaiser, Stefanie Riehl, Torben 2018 application/pdf https://biblio.ugent.be/publication/8560836 http://hdl.handle.net/1854/LU-8560836 https://doi.org/10.1016/j.dsr2.2016.12.005 https://biblio.ugent.be/publication/8560836/file/8609225 eng eng https://biblio.ugent.be/publication/8560836 http://hdl.handle.net/1854/LU-8560836 http://dx.doi.org/10.1016/j.dsr2.2016.12.005 https://biblio.ugent.be/publication/8560836/file/8609225 No license (in copyright) info:eu-repo/semantics/restrictedAccess DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY ISSN: 0967-0645 Biology and Life Sciences Earth and Environmental Sciences Acantholaimus Alpha diversity Patchiness Diversity indices Spatial scale PARTICLE-SIZE DIVERSITY VEMA FRACTURE-ZONE NORTH-ATLANTIC MARINE NEMATODES SOUTHERN-OCEAN ENVIRONMENTAL DRIVERS BENTHIC BIODIVERSITY SURFACE PRODUCTIVITY GENUS ACANTHOLAIMUS CONTINENTAL-SHELF journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2018 ftunivgent https://doi.org/10.1016/j.dsr2.2016.12.005 2023-05-10T22:27:09Z Biodiversity patterns in the deep sea have been extensively studied in the last decades. In this study, we investigated whether reputable concepts in deep-sea ecology also explain diversity and distribution patterns of nematode genera and species in the abyss. Among them, three paradigms were tackled: (1) the deep sea is a highly diverse environment at a local scale, while on a regional and even larger geographical scale, species and genus turnover is limited; (2) the biodiversity of deep-sea nematode communities changes with the nature and amount of organic matter input from the surface; and (3) patch-mosaic dynamics of the deep-sea environment drive local diversity. To test these hypotheses, diversity and density of nematode assemblages and of species of the genus Acantholaimus were studied along two abyssal E-W transects. These two transects were situated in the Southern Ocean (similar to 50 degrees S) and the North Atlantic (similar to 10 degrees N). Four different hierarchical scales were used to compare biodiversity: at the scale of cores, between stations from the same region, and between regions. Results revealed that the deep sea harbours a high diversity at a local scale (alpha diversity), but that turnover can be shaped by different environmental drivers. Therefore, these results question the second part of the paradigm about limited species turnover in the deep sea. Higher surface primary productivity was correlated with greater nematode densities, whereas diversity responses to the augmentation of surface productivity showed no trend. Areas subjected to a constant and low food input revealed similar nematode communities to other oligotrophic abyssal areas, while stations under high productivity were characterized by different dominant genera and Acantholaimus species, and by a generally low local diversity. Our results corroborate the species-energy hypothesis, where productivity can set a limit to the richness of an ecosystem. Finally, we observed no correlation between sediment variability and ... Article in Journal/Newspaper North Atlantic Southern Ocean Ghent University Academic Bibliography Southern Ocean Deep Sea Research Part II: Topical Studies in Oceanography 148 208 222 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Biology and Life Sciences Earth and Environmental Sciences Acantholaimus Alpha diversity Patchiness Diversity indices Spatial scale PARTICLE-SIZE DIVERSITY VEMA FRACTURE-ZONE NORTH-ATLANTIC MARINE NEMATODES SOUTHERN-OCEAN ENVIRONMENTAL DRIVERS BENTHIC BIODIVERSITY SURFACE PRODUCTIVITY GENUS ACANTHOLAIMUS CONTINENTAL-SHELF |
spellingShingle |
Biology and Life Sciences Earth and Environmental Sciences Acantholaimus Alpha diversity Patchiness Diversity indices Spatial scale PARTICLE-SIZE DIVERSITY VEMA FRACTURE-ZONE NORTH-ATLANTIC MARINE NEMATODES SOUTHERN-OCEAN ENVIRONMENTAL DRIVERS BENTHIC BIODIVERSITY SURFACE PRODUCTIVITY GENUS ACANTHOLAIMUS CONTINENTAL-SHELF Lins Pereira, Lidia da Silva, Maria Cristina Neres, Patrícia Esteves, André Morgado Vanreusel, Ann Testing deep-sea biodiversity paradigms on abyssal nematode genera and Acantholaimus species |
topic_facet |
Biology and Life Sciences Earth and Environmental Sciences Acantholaimus Alpha diversity Patchiness Diversity indices Spatial scale PARTICLE-SIZE DIVERSITY VEMA FRACTURE-ZONE NORTH-ATLANTIC MARINE NEMATODES SOUTHERN-OCEAN ENVIRONMENTAL DRIVERS BENTHIC BIODIVERSITY SURFACE PRODUCTIVITY GENUS ACANTHOLAIMUS CONTINENTAL-SHELF |
description |
Biodiversity patterns in the deep sea have been extensively studied in the last decades. In this study, we investigated whether reputable concepts in deep-sea ecology also explain diversity and distribution patterns of nematode genera and species in the abyss. Among them, three paradigms were tackled: (1) the deep sea is a highly diverse environment at a local scale, while on a regional and even larger geographical scale, species and genus turnover is limited; (2) the biodiversity of deep-sea nematode communities changes with the nature and amount of organic matter input from the surface; and (3) patch-mosaic dynamics of the deep-sea environment drive local diversity. To test these hypotheses, diversity and density of nematode assemblages and of species of the genus Acantholaimus were studied along two abyssal E-W transects. These two transects were situated in the Southern Ocean (similar to 50 degrees S) and the North Atlantic (similar to 10 degrees N). Four different hierarchical scales were used to compare biodiversity: at the scale of cores, between stations from the same region, and between regions. Results revealed that the deep sea harbours a high diversity at a local scale (alpha diversity), but that turnover can be shaped by different environmental drivers. Therefore, these results question the second part of the paradigm about limited species turnover in the deep sea. Higher surface primary productivity was correlated with greater nematode densities, whereas diversity responses to the augmentation of surface productivity showed no trend. Areas subjected to a constant and low food input revealed similar nematode communities to other oligotrophic abyssal areas, while stations under high productivity were characterized by different dominant genera and Acantholaimus species, and by a generally low local diversity. Our results corroborate the species-energy hypothesis, where productivity can set a limit to the richness of an ecosystem. Finally, we observed no correlation between sediment variability and ... |
author2 |
Brandt, Angelika Kaiser, Stefanie Riehl, Torben |
format |
Article in Journal/Newspaper |
author |
Lins Pereira, Lidia da Silva, Maria Cristina Neres, Patrícia Esteves, André Morgado Vanreusel, Ann |
author_facet |
Lins Pereira, Lidia da Silva, Maria Cristina Neres, Patrícia Esteves, André Morgado Vanreusel, Ann |
author_sort |
Lins Pereira, Lidia |
title |
Testing deep-sea biodiversity paradigms on abyssal nematode genera and Acantholaimus species |
title_short |
Testing deep-sea biodiversity paradigms on abyssal nematode genera and Acantholaimus species |
title_full |
Testing deep-sea biodiversity paradigms on abyssal nematode genera and Acantholaimus species |
title_fullStr |
Testing deep-sea biodiversity paradigms on abyssal nematode genera and Acantholaimus species |
title_full_unstemmed |
Testing deep-sea biodiversity paradigms on abyssal nematode genera and Acantholaimus species |
title_sort |
testing deep-sea biodiversity paradigms on abyssal nematode genera and acantholaimus species |
publishDate |
2018 |
url |
https://biblio.ugent.be/publication/8560836 http://hdl.handle.net/1854/LU-8560836 https://doi.org/10.1016/j.dsr2.2016.12.005 https://biblio.ugent.be/publication/8560836/file/8609225 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
North Atlantic Southern Ocean |
genre_facet |
North Atlantic Southern Ocean |
op_source |
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY ISSN: 0967-0645 |
op_relation |
https://biblio.ugent.be/publication/8560836 http://hdl.handle.net/1854/LU-8560836 http://dx.doi.org/10.1016/j.dsr2.2016.12.005 https://biblio.ugent.be/publication/8560836/file/8609225 |
op_rights |
No license (in copyright) info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.dsr2.2016.12.005 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
148 |
container_start_page |
208 |
op_container_end_page |
222 |
_version_ |
1768392822553051136 |