Removal of deep-sea sponges by bottom trawling in the Flemish Cap area: conservation, ecology and economic assessment
ABSTRACT Deep-sea sponge grounds are vulnerable marine ecosystems, which through their benthic-pelagic coupling of nutrients, are of functional relevance to the deep-sea realm. The impact of fishing bycatch is here evaluated for the first time at a bathyal, sponge-dominated ecosystem in the high sea...
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ftzenodo:oai:zenodo.org:3531968 2024-09-15T18:24:22+00:00 Removal of deep-sea sponges by bottom trawling in the Flemish Cap area: conservation, ecology and economic assessment Pham, CK Murillo, FJ Lirette, C Maldonado, Manuel Colaço, Ana Ottaviani, D Kenchington, Ellen 2019-11-01 https://doi.org/10.1038/s41598-019-52250-1 unknown Zenodo https://www.nature.com/articles/s41598-019-52250-1#Ack1 https://static-content.springer.com/esm/art%3A10.1038%2Fs41598-019-52250-1/MediaObjects/41598_2019_52250_MOESM1_ESM.pdf http://obiscanada.marinebiodiversity.ca/ http://www.iobis.org/ https://doi.org/10.6084/m9.figshare.1165479 https://zenodo.org/communities/sponges https://zenodo.org/communities/eu https://doi.org/10.1038/s41598-019-52250-1 oai:zenodo.org:3531968 info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode Scientific Reports, 9, 15843, (2019-11-01) Flemish Cap trawling conservation economics random forest modeling deep-sea European Union Horizon 2020 Deep-sea Sponge Grounds Ecosystems of the North Atlantic: An integrated approach towards their preservation and sustainable exploitation SponGES Grant Agreement No 679849 info:eu-repo/semantics/article 2019 ftzenodo https://doi.org/10.1038/s41598-019-52250-110.6084/m9.figshare.1165479 2024-07-25T11:48:40Z ABSTRACT Deep-sea sponge grounds are vulnerable marine ecosystems, which through their benthic-pelagic coupling of nutrients, are of functional relevance to the deep-sea realm. The impact of fishing bycatch is here evaluated for the first time at a bathyal, sponge-dominated ecosystem in the high seas managed by the Northwest Atlantic Fisheries Organization. Sponge biomass surfaces created from research survey data using both random forest modeling and a gridded surface revealed 231,140 t of sponges in the area. About 65% of that biomass was protected by current fisheries closures. However, projections of trawling tracks estimated that the sponge biomass within them would be wiped out in just 1 year by the current level of fishing activity if directed on the sponges. Because these sponges filter 56,143 ± 15,047 million litres of seawater daily, consume 63.11 ± 11.83 t of organic carbon through respiration, and affect the turnover of several nitrogen nutrients, their removal would likely affect the delicate ecological equilibrium of the deep-sea benthic ecosystem. We estimated that, on Flemish Cap, the economic value associated with seawater filtration by the sponges is nearly double the market value of the fish catch. Hence, fishery closures are essential to reach sponge conservation goals as economic drivers cannot be relied upon. DATA AVAILABILITY: The authors confirm that all data underlying the findings are fully available without restriction. Data from Canadian research vessel surveys are deposited in the Ocean Biogeographic Information System (OBIS) at http://obiscanada.marinebiodiversity.ca/or http://www.iobis.org/. Spanish/EU data are available at Figshare with the https://doi.org/10.6084/m9.figshare.1165479. ACKNOWLEDGEMENTS: This research has been performed within the scope of the SponGES project, which received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 679849. This document reflects only the authors' views and the Executive Agency for ... Article in Journal/Newspaper North Atlantic Northwest Atlantic Zenodo Scientific Reports 9 1 |
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ftzenodo |
language |
unknown |
topic |
Flemish Cap trawling conservation economics random forest modeling deep-sea European Union Horizon 2020 Deep-sea Sponge Grounds Ecosystems of the North Atlantic: An integrated approach towards their preservation and sustainable exploitation SponGES Grant Agreement No 679849 |
spellingShingle |
Flemish Cap trawling conservation economics random forest modeling deep-sea European Union Horizon 2020 Deep-sea Sponge Grounds Ecosystems of the North Atlantic: An integrated approach towards their preservation and sustainable exploitation SponGES Grant Agreement No 679849 Pham, CK Murillo, FJ Lirette, C Maldonado, Manuel Colaço, Ana Ottaviani, D Kenchington, Ellen Removal of deep-sea sponges by bottom trawling in the Flemish Cap area: conservation, ecology and economic assessment |
topic_facet |
Flemish Cap trawling conservation economics random forest modeling deep-sea European Union Horizon 2020 Deep-sea Sponge Grounds Ecosystems of the North Atlantic: An integrated approach towards their preservation and sustainable exploitation SponGES Grant Agreement No 679849 |
description |
ABSTRACT Deep-sea sponge grounds are vulnerable marine ecosystems, which through their benthic-pelagic coupling of nutrients, are of functional relevance to the deep-sea realm. The impact of fishing bycatch is here evaluated for the first time at a bathyal, sponge-dominated ecosystem in the high seas managed by the Northwest Atlantic Fisheries Organization. Sponge biomass surfaces created from research survey data using both random forest modeling and a gridded surface revealed 231,140 t of sponges in the area. About 65% of that biomass was protected by current fisheries closures. However, projections of trawling tracks estimated that the sponge biomass within them would be wiped out in just 1 year by the current level of fishing activity if directed on the sponges. Because these sponges filter 56,143 ± 15,047 million litres of seawater daily, consume 63.11 ± 11.83 t of organic carbon through respiration, and affect the turnover of several nitrogen nutrients, their removal would likely affect the delicate ecological equilibrium of the deep-sea benthic ecosystem. We estimated that, on Flemish Cap, the economic value associated with seawater filtration by the sponges is nearly double the market value of the fish catch. Hence, fishery closures are essential to reach sponge conservation goals as economic drivers cannot be relied upon. DATA AVAILABILITY: The authors confirm that all data underlying the findings are fully available without restriction. Data from Canadian research vessel surveys are deposited in the Ocean Biogeographic Information System (OBIS) at http://obiscanada.marinebiodiversity.ca/or http://www.iobis.org/. Spanish/EU data are available at Figshare with the https://doi.org/10.6084/m9.figshare.1165479. ACKNOWLEDGEMENTS: This research has been performed within the scope of the SponGES project, which received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 679849. This document reflects only the authors' views and the Executive Agency for ... |
format |
Article in Journal/Newspaper |
author |
Pham, CK Murillo, FJ Lirette, C Maldonado, Manuel Colaço, Ana Ottaviani, D Kenchington, Ellen |
author_facet |
Pham, CK Murillo, FJ Lirette, C Maldonado, Manuel Colaço, Ana Ottaviani, D Kenchington, Ellen |
author_sort |
Pham, CK |
title |
Removal of deep-sea sponges by bottom trawling in the Flemish Cap area: conservation, ecology and economic assessment |
title_short |
Removal of deep-sea sponges by bottom trawling in the Flemish Cap area: conservation, ecology and economic assessment |
title_full |
Removal of deep-sea sponges by bottom trawling in the Flemish Cap area: conservation, ecology and economic assessment |
title_fullStr |
Removal of deep-sea sponges by bottom trawling in the Flemish Cap area: conservation, ecology and economic assessment |
title_full_unstemmed |
Removal of deep-sea sponges by bottom trawling in the Flemish Cap area: conservation, ecology and economic assessment |
title_sort |
removal of deep-sea sponges by bottom trawling in the flemish cap area: conservation, ecology and economic assessment |
publisher |
Zenodo |
publishDate |
2019 |
url |
https://doi.org/10.1038/s41598-019-52250-1 |
genre |
North Atlantic Northwest Atlantic |
genre_facet |
North Atlantic Northwest Atlantic |
op_source |
Scientific Reports, 9, 15843, (2019-11-01) |
op_relation |
https://www.nature.com/articles/s41598-019-52250-1#Ack1 https://static-content.springer.com/esm/art%3A10.1038%2Fs41598-019-52250-1/MediaObjects/41598_2019_52250_MOESM1_ESM.pdf http://obiscanada.marinebiodiversity.ca/ http://www.iobis.org/ https://doi.org/10.6084/m9.figshare.1165479 https://zenodo.org/communities/sponges https://zenodo.org/communities/eu https://doi.org/10.1038/s41598-019-52250-1 oai:zenodo.org:3531968 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.1038/s41598-019-52250-110.6084/m9.figshare.1165479 |
container_title |
Scientific Reports |
container_volume |
9 |
container_issue |
1 |
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1810464701711122432 |