Post-2020 Kunming 30% target can easily protect all endemic sharks and rays in the Western Indian Ocean and more

Cheok, Jessica; Jabado, Rima W.; Ebert, David A.; Dulvy, Nicholas K.

doi:10.1101/2021.03.08.434293

Cited by 2 publications

(2 citation statements)

References 46 publications

(60 reference statements)

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“…Marine Protected Areas might prove to be a suitable approach for conserving threatened endemic sharks 52 . Even a modest expansion of the protected areas network has significant potential to contribute to the conservation of these species 53 .…”

Section: Discussionmentioning

confidence: 99%

Overfishing and Climate Change Elevate Extinction Risk of Endemic Sharks and Rays in the Southwest Indian Ocean Hotspot and Adjacent Waters

Pollom

Cheok

Pacoureau

et al. 2022

Preprint

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The southwest Indian Ocean (SWIO) is a hotspot of endemic and evolutionarily distinct sharks and rays. We summarise the extinction risk of the sharks and rays endemic to coastal, shelf, and slope waters of the SWIO and adjacent waters (Namibia to Kenya, including SWIO islands). Thirteen of 70 species (19%) are threatened: one is Critically Endangered, five are Endangered, and seven are Vulnerable. A further seven (10%) are Near Threatened, 33 (47.1%) are Least Concern, and 17 (24.2%) are Data Deficient. While the primary threat is overfishing, there are the first signs that climate change is contributing to elevated extinction risk through habitat reduction and inshore distributional shifts. By backcasting their status, few species were threatened in 1980, but this changed soon after the emergence of targeted shark and ray fisheries. South Africa has the highest national conservation responsibility, followed by Mozambique and Madagascar. Yet, while fisheries management and enforcement have improved in South Africa over recent decades, drastic improvements are urgently needed elsewhere. To avoid extinction and ensure robust populations of the region’s endemic sharks and rays and maintain ecosystem functionality, there is an urgent need for the strict protection of Critically Endangered and Endangered species and sustainable management of Vulnerable, Near Threatened, and Least Concern species, underpinned by species-level data collection and reduction of incidental catch.

show abstract

Section: Discussionmentioning

confidence: 99%

Overfishing and Climate Change Elevate Extinction Risk of Endemic Sharks and Rays in the Southwest Indian Ocean Hotspot and Adjacent Waters

Pollom

Cheok

Pacoureau

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…Marine Protected Areas might prove to be a suitable approach for conserving threatened endemic sharks 30 . Even a modest expansion of the protected areas network has significant potential to contribute to the conservation of these species 31 .…”

Section: Discussionmentioning

confidence: 99%

Overfishing and Climate Change Elevate Extinction Risk of Endemic Sharks and Rays in the Southwest Indian Ocean Hotspot

Pollom

Cheok

Pacoureau

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

The southwest Indian Ocean (SWIO) is a hotspot of endemic and evolutionarily distinct sharks and rays. We summarise the extinction risk of the sharks and rays endemic to coastal, shelf, and slope waters of the SWIO (Namibia to Kenya, including SWIO islands). Thirteen of 70 species (19%) are threatened: one is Critically Endangered, five are Endangered, and seven are Vulnerable. A further seven (10%) are Near Threatened, 33 (47.1%) are Least Concern, and 17 (24.2%) are Data Deficient. While the primary threat is overfishing, there are the first signs that climate change is contributing to elevated extinction risk through habitat reduction and inshore distributional shifts. By backcasting their status, few species were threatened in 1980, but this changed soon after the emergence of targeted shark and ray fisheries. South Africa has the highest national conservation responsibility, followed by Mozambique and Madagascar. Yet, while fisheries management and enforcement have improved in South Africa over recent decades, drastic improvements are urgently needed elsewhere. To avoid extinction and ensure robust populations and future food security, there is an urgent need for the strict protection of Critically Endangered and Endangered species and sustainable management of all species, underpinned by species-level data collection and bycatch reduction.

show abstract

Post-2020 Kunming 30% target can easily protect all endemic sharks and rays in the Western Indian Ocean and more

Cited by 2 publications

References 46 publications

Overfishing and Climate Change Elevate Extinction Risk of Endemic Sharks and Rays in the Southwest Indian Ocean Hotspot and Adjacent Waters

Overfishing and Climate Change Elevate Extinction Risk of Endemic Sharks and Rays in the Southwest Indian Ocean Hotspot and Adjacent Waters

Overfishing and Climate Change Elevate Extinction Risk of Endemic Sharks and Rays in the Southwest Indian Ocean Hotspot

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