Development of a new control rule for managing anthropogenic removals of protected, endangered or threatened species in marine ecosystems
Human activities in the oceans are increasing and can result in additional mortality on many marine Protected, Endangered or Threatened Species (PETS). It is necessary to implement ambitious measures that aim to restore biodiversity at all nodes of marine food webs and to manage removals resulting f...
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ftdoajarticles:oai:doaj.org/article:a7d1d3c018b147f5a6a0a9b40e003465 2024-02-11T10:04:33+01:00 Development of a new control rule for managing anthropogenic removals of protected, endangered or threatened species in marine ecosystems Fanny Ouzoulias Nicolas Bousquet Mathieu Genu Anita Gilles Jérôme Spitz Matthieu Authier 2024-01-01T00:00:00Z https://doi.org/10.7717/peerj.16688 https://doaj.org/article/a7d1d3c018b147f5a6a0a9b40e003465 EN eng PeerJ Inc. https://peerj.com/articles/16688.pdf https://peerj.com/articles/16688/ https://doaj.org/toc/2167-8359 doi:10.7717/peerj.16688 2167-8359 https://doaj.org/article/a7d1d3c018b147f5a6a0a9b40e003465 PeerJ, Vol 12, p e16688 (2024) Management strategy evaluation Good environmental status Cetaceans By-catch Medicine R Biology (General) QH301-705.5 article 2024 ftdoajarticles https://doi.org/10.7717/peerj.16688 2024-01-14T01:51:44Z Human activities in the oceans are increasing and can result in additional mortality on many marine Protected, Endangered or Threatened Species (PETS). It is necessary to implement ambitious measures that aim to restore biodiversity at all nodes of marine food webs and to manage removals resulting from anthropogenic activities. We developed a stochastic surplus production model (SPM) linking abundance and removal processes under the assumption that variations in removals reflect variations in abundance. We then consider several ‘harvest’ control rules, included two candidate ones derived from this SPM (which we called ‘Anthropogenic Removals Threshold’, or ART), to manage removals of PETS. The two candidate rules hinge on the estimation of a stationary removal rate. We compared these candidate rules to other existing control rules (e.g. potential biological removal or a fixed percentage rule) in three scenarios: (i) a base scenario whereby unbiased but noisy data are available, (ii) scenario whereby abundance estimates are overestimated and (iii) scenario whereby abundance estimates are underestimated. The different rules were tested on a simulated set of data with life-history parameters close to a small-sized cetacean species of conservation interest in the North-East Atlantic, the harbour porpoise (Phocoena phocoena), and in a management strategy evaluation framework. The effectiveness of the rules were assessed by looking at performance metrics, such as time to reach the conservation objectives, the removal limits obtained with the rules or temporal autocorrelation in removal limits. Most control rules were robust against biases in data and allowed to reach conservation objectives with removal limits of similar magnitude when averaged over time. However, one of the candidate rule (ART) displayed greater alignment with policy requirements for PETS such as minimizing removals over time. Article in Journal/Newspaper Harbour porpoise North East Atlantic Phocoena phocoena Directory of Open Access Journals: DOAJ Articles PeerJ 12 e16688 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Management strategy evaluation Good environmental status Cetaceans By-catch Medicine R Biology (General) QH301-705.5 |
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Management strategy evaluation Good environmental status Cetaceans By-catch Medicine R Biology (General) QH301-705.5 Fanny Ouzoulias Nicolas Bousquet Mathieu Genu Anita Gilles Jérôme Spitz Matthieu Authier Development of a new control rule for managing anthropogenic removals of protected, endangered or threatened species in marine ecosystems |
topic_facet |
Management strategy evaluation Good environmental status Cetaceans By-catch Medicine R Biology (General) QH301-705.5 |
description |
Human activities in the oceans are increasing and can result in additional mortality on many marine Protected, Endangered or Threatened Species (PETS). It is necessary to implement ambitious measures that aim to restore biodiversity at all nodes of marine food webs and to manage removals resulting from anthropogenic activities. We developed a stochastic surplus production model (SPM) linking abundance and removal processes under the assumption that variations in removals reflect variations in abundance. We then consider several ‘harvest’ control rules, included two candidate ones derived from this SPM (which we called ‘Anthropogenic Removals Threshold’, or ART), to manage removals of PETS. The two candidate rules hinge on the estimation of a stationary removal rate. We compared these candidate rules to other existing control rules (e.g. potential biological removal or a fixed percentage rule) in three scenarios: (i) a base scenario whereby unbiased but noisy data are available, (ii) scenario whereby abundance estimates are overestimated and (iii) scenario whereby abundance estimates are underestimated. The different rules were tested on a simulated set of data with life-history parameters close to a small-sized cetacean species of conservation interest in the North-East Atlantic, the harbour porpoise (Phocoena phocoena), and in a management strategy evaluation framework. The effectiveness of the rules were assessed by looking at performance metrics, such as time to reach the conservation objectives, the removal limits obtained with the rules or temporal autocorrelation in removal limits. Most control rules were robust against biases in data and allowed to reach conservation objectives with removal limits of similar magnitude when averaged over time. However, one of the candidate rule (ART) displayed greater alignment with policy requirements for PETS such as minimizing removals over time. |
format |
Article in Journal/Newspaper |
author |
Fanny Ouzoulias Nicolas Bousquet Mathieu Genu Anita Gilles Jérôme Spitz Matthieu Authier |
author_facet |
Fanny Ouzoulias Nicolas Bousquet Mathieu Genu Anita Gilles Jérôme Spitz Matthieu Authier |
author_sort |
Fanny Ouzoulias |
title |
Development of a new control rule for managing anthropogenic removals of protected, endangered or threatened species in marine ecosystems |
title_short |
Development of a new control rule for managing anthropogenic removals of protected, endangered or threatened species in marine ecosystems |
title_full |
Development of a new control rule for managing anthropogenic removals of protected, endangered or threatened species in marine ecosystems |
title_fullStr |
Development of a new control rule for managing anthropogenic removals of protected, endangered or threatened species in marine ecosystems |
title_full_unstemmed |
Development of a new control rule for managing anthropogenic removals of protected, endangered or threatened species in marine ecosystems |
title_sort |
development of a new control rule for managing anthropogenic removals of protected, endangered or threatened species in marine ecosystems |
publisher |
PeerJ Inc. |
publishDate |
2024 |
url |
https://doi.org/10.7717/peerj.16688 https://doaj.org/article/a7d1d3c018b147f5a6a0a9b40e003465 |
genre |
Harbour porpoise North East Atlantic Phocoena phocoena |
genre_facet |
Harbour porpoise North East Atlantic Phocoena phocoena |
op_source |
PeerJ, Vol 12, p e16688 (2024) |
op_relation |
https://peerj.com/articles/16688.pdf https://peerj.com/articles/16688/ https://doaj.org/toc/2167-8359 doi:10.7717/peerj.16688 2167-8359 https://doaj.org/article/a7d1d3c018b147f5a6a0a9b40e003465 |
op_doi |
https://doi.org/10.7717/peerj.16688 |
container_title |
PeerJ |
container_volume |
12 |
container_start_page |
e16688 |
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1790601206033285120 |