The largest fully protected marine area in North America does not harm industrial fishing

Science Advances, Journal Year: 2023, Volume and Issue: 9(22)

Published: May 31, 2023

Marine protected areas (MPAs) that ban fishing restore marine life within their boundaries and can also replenish nearby fisheries. However, some argue after large MPAs are established, effort is displaced to unprotected economic loss incurred by the industry. We tested these assumptions assessing behavior productivity of Mexican industrial fleet before implementation largest fully MPA in North America (the 147,000-square kilometer Revillagigedo National Park). found no decrease catches causal link between variation spatial footprint MPA. Our findings add growing evidence well-designed benefit ecosystems and, long term, fisheries they support.

Language: Английский

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Spatio-temporal variability of fishing habitat suitability to tuna purse seine fleet in the Western and Central Pacific Ocean

Regional Studies in Marine Science, Journal Year: 2024, Volume and Issue: 70, P. 103366 - 103366

Published: Jan. 2, 2024

Language: Английский

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Distant water industrial fishing in developing countries: A case study of Madagascar

Ocean & Coastal Management, Journal Year: 2021, Volume and Issue: 216, P. 105925 - 105925

Published: Nov. 26, 2021

Language: Английский

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Studies of the movement ecology of sharks justify the existence and expansion of marine protected areas in the Eastern Pacific Ocean

Environmental Biology of Fishes, Journal Year: 2022, Volume and Issue: 105(12), P. 2133 - 2153

Published: Jan. 20, 2022

Language: Английский

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Application of AIS‐ and flyover‐based methods to monitor illegal and legal fishing in Canada's Pacific marine conservation areas

Conservation Science and Practice, Journal Year: 2023, Volume and Issue: 5(6)

Published: April 2, 2023

Abstract New approaches are required to undertake the substantial task of monitoring ongoing fishing activity in marine conservation areas ensure goals achieved. To address this need, we applied previously developed, yet currently underused, vessel tracking methods based on Automatic Identification System (AIS) and aerial surveillance (“flyovers”) Canada's Pacific from 2012 2019. We used satellite terrestrial‐based AIS receivers flyover‐based visual observations estimate illegal legal after 185 area (CA) enactments (i.e., static, geographically defined with regulations). compared effectiveness detecting between AIS‐ methods, latter determine that 93% vessels were actively CAs without AIS. The AIS‐based method still detected 3303 h enactment, both estimated 22%–24% was illegal. application these also shed light complexity regulations across varying CA‐specific restrictions). This highlighted need better align gear classifications CA regulation specifications, conversely simplify (e.g., no‐take), for more accurate evaluation moving forward.

Language: Английский

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Shedding light on trawl fishing activity in the Mediterranean Sea with remote sensing data

ICES Journal of Marine Science, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 22, 2024

Abstract This study uses Synthetic Aperture Radar (SAR) vessel detections and Automatic Identification System (AIS) to predict trawl fishing intensity distribution of activity in areas where public AIS data are not available. By processing SAR data, considering spatial temporal autocorrelation, building a General Additive Model, statistical relationship between was established. The provides spatially explicit estimates trawler activity, compared with official fleet records published by the Fisheries Commission Mediterranean, revealing previously publicly tracked. Fishing grounds Strait Sicily along coast Tunisia North Egypt showed an similar Adriatic Sea. area is historically known be subject highest trawling pressure also as one most heavily trawled regions world. shows that integration remote sensing such SAR, offers promising avenue overcome gaps improve fisheries management Mediterranean only portion

Language: Английский

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Priorities for ecological research on cetaceans in the Galápagos Islands

Frontiers in Marine Science, Journal Year: 2023, Volume and Issue: 10

Published: Feb. 14, 2023

Located in the eastern tropical Pacific, Galápagos Islands are an oceanic insular ecosystem subject to strong environmental variability driven by local and regional processes. Past research has shown that such conditions can attract sustain at least 23 cetacean species, out of which 14 common, including nine Delphinids, one Ziphiid, Physeterid, three Balaenopterids. These species occupy both coastal habitats, most present year-round, a few migratory. However, on cetaceans been sporadic chronically underfunded is not currently considered priority agenda for Galápagos. Based review existing information assessment knowledge gaps, here we identify priorities ecological along five topical areas: 1) spatiotemporal occurrence, 2) population assessment, 3) health 4) social ecology, 5) trophic ecology. Addressing these gaps will also help inform actions preserve biodiversity manage human activities involving or affecting Given logistical funding challenges conducting Galápagos, recommend optimizing data sampling accessibility via integrated protocols open repositories. We capitalizing citizen science activities, as those conducted from cruise ships whale-watching tours, serve platforms opportunity obtaining basic data, thereby contributing long-term acquisition. Our proposed should be assessed Ecuadorian governmental institutions broad inclusive consultation with stakeholders scientific community prior development implementation agenda. Collectively, efforts advance our understanding role marine megafauna, cetaceans, play other islands, maintaining large-scale connectivity mitigating climate change.

Language: Английский

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Fishers as foragers: Individual variation among small-scale fishing vessels as revealed by novel tracking technology

Fisheries Research, Journal Year: 2021, Volume and Issue: 238, P. 105896 - 105896

Published: Feb. 15, 2021

Language: Английский

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Effectiveness of Large-Scale Marine Protected Areas in the Atlantic Ocean for Reducing Fishing Activities

Frontiers in Marine Science, Journal Year: 2021, Volume and Issue: 8

Published: Aug. 24, 2021

The implementation of large-scale marine protected areas (MPAs) depends upon scarce conservation resources, while their effects on biodiversity are rarely assessed to date. Quantitative evaluations necessary assess the effectiveness MPAs in enhancing ecosystem resilience, protecting biodiversity, and mitigating expanding threats. In this study, MPAs, which remotely managed offshore southwestern Atlantic Ocean (Brazil), was concerning occurrence fishing activities within boundaries before after implementation. Two sets surrounding São Pedro Paulo archipelago (SPSP) Trindade-Martin Vaz Islands (TMV) were established early 2018, each comprising one no-take (i.e., fully-protected) multiple-use partially-protected) area. For assessment, I used satellite detections Vessel Monitoring System transmission quantify pressure “likely days”) from commercial fisheries spanning 5 years (2015–2019). then derived three metrics – area, intensity, density compare activity MPA year. results showed that variable contrasting, with SPSP experiencing a reduction intensity area TMV an increase both measures. An inverted pattern evident for MPAs: region experienced its establishment following squeeze factor, observed decrease when comparing These outputs can support managers planning further strategies, such as monitoring enforcement plans, analyses here also contribute our understanding implications challenges adopting environment high-profile strategy ocean conservation.

Language: Английский

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Comparing the Performance of Four Very Large Marine Protected Areas with Different Levels of Protection

Sustainability, Journal Year: 2021, Volume and Issue: 13(17), P. 9572 - 9572

Published: Aug. 25, 2021

In the last decades, several targets for marine conservation were set to counter effects of increasing fishing pressure, e.g., protecting 10% sea by 2020, and establishing large-scale protected areas (LSMPAs). Using ‘reconstructed’ catch data 1950 2018 made available Sea Around Us initiative, we show that declaration an exclusive economic zone (EEZ) in 1983 U.S.A. its protection U.S. Coast Guard had a much bigger impact on catches around Northwestern Hawaiian Islands than subsequent creation LSMPA. This is similar Pitcairn Islands, UK territory. Trends differed sharply Galapagos New Caledonia, where neither their EEZ nor LSMPA (by Ecuador 1988 France 2014) stopped local fisheries from continuous expansion. Our results also demonstrate studied multizone LSMPAs continued induces ‘fishing down’ effect wherein mean trophic level (TL) declined, especially Galapagos, 0.1 TL per decade. Stakeholders’ responses short questionnaire satellite imagery lent support these they documented substantial operations line’ within LSMPAs. case EEZs less populated or unpopulated islands, banning foreign may reduce more declaration. confirms are tool coastal countries protect biodiversity allowing MPA, while politically convenient, result ‘paper parks’ which can cause same deleterious as wholly unprotected areas.

Language: Английский

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