4 tuna species are showing signs of recovery. Here’s what that tells us about the future of fisheries

(Credit: Unsplash)

This article is brought to you thanks to the collaboration of The European Sting with the World Economic Forum.

Author: Joe Myers, Writer, Formative Content

  • New data shows four commercially-fished tuna species are on the path to recovery.
  • However, there are regional differences in the recovery, and bad news for other species in the updated IUCN Red List of Threatened Species.
  • Experts have called for all regional fisheries management organizations to catch up and set fishing quotas in line with scientific advice.
  • Sustainable and science-backed management of fisheries are a key part of the UN’s Sustainable Development Goals.
  • A healthy ocean is vital as a food source, for livelihoods and in combatting climate change.

Four commercially-fished tuna species are on the path to recovery, according to the updated International Union for Conservation of Nature’s (IUCN) Red List of Threatened Species.

Seven of the most commercially fished tuna species were assessed in the update, with four of them showing signs of recovery:

  • Atlantic bluefin moved from Endangered to Least Concern
  • Southern bluefin moved from Criticially Endangered to Endangered
  • Albacore and yellowfin both moved from Near Threatened to Least Concern.

The importance of careful management

The IUCN explains that these recoveries are the result of greater enforcement of more sustainable fishing quotas and work to combat illegal fishing.

“These Red List assessments are proof that sustainable fisheries approaches work, with enormous long-term benefits for livelihoods and biodiversity. We need to continue enforcing sustainable fishing quotas and cracking down on illegal fishing,” said Dr Bruce B Collette, Chair of the IUCN SSC Tuna and Billfish Specialist Group. “Tuna species migrate across thousands of kilometres, so coordinating their management globally is also key.”

It’s vital that all fisheries – not just tuna – are carefully managed, explains Gemma Parkes of the Friends of Ocean Action at the World Economic Forum. This management should be done in a consistent and precautionary way – and based on the best available scientific advice.

Global trends in the state of the world's marine fish stocks, 1974-2017
Overfishing is threat to fish stocks around the world. Image: FAO

Not all good news

The IUCN’s update is not all good news for tuna species, though. Although there are positive signs on a global level, there are regional disparities, with many stocks still severely depleted.

The larger, eastern population of Atlantic bluefin, which originates in the Mediterrean, has increased by at least 22% over the past four decades. But, the smaller, native western Atlantic population, which originates in the Gulf of Mexico, has declined by more than half in that period.

And the updated list showed bad news for other ocean species. More than a third of the world’s shark and ray species are now threatened with extinction – with all these threatened species overfished. Many are also affected by loss and degradation of habitat and climate change.

But, as Dr Bruno Oberle, IUCN Director General, explains, “[The] IUCN Red List update is a powerful sign that, despite increasing pressures on our oceans, species can recover if states truly commit to sustainable practices.”

What’s the World Economic Forum doing about the ocean?

Our ocean covers 70% of the world’s surface and accounts for 80% of the planet’s biodiversity. We can’t have a healthy future without a healthy ocean – but it’s more vulnerable than ever because of climate change and pollution.

Tackling the grave threats to our ocean means working with leaders across sectors, from business to government to academia.

The World Economic Forum, in collaboration with the World Resources Institute, convenes the Friends of Ocean Action, a coalition of leaders working together to protect the seas. From a programme with the Indonesian government to cut plastic waste entering the sea to a global plan to track illegal fishing, the Friends are pushing for new solutions. https://platform.twitter.com/embed/Tweet.html?dnt=false&embedId=twitter-widget-1&features=eyJ0ZndfZXhwZXJpbWVudHNfY29va2llX2V4cGlyYXRpb24iOnsiYnVja2V0IjoxMjA5NjAwLCJ2ZXJzaW9uIjpudWxsfSwidGZ3X2hvcml6b25fdHdlZXRfZW1iZWRfOTU1NSI6eyJidWNrZXQiOiJodGUiLCJ2ZXJzaW9uIjpudWxsfSwidGZ3X3NwYWNlX2NhcmQiOnsiYnVja2V0Ijoib2ZmIiwidmVyc2lvbiI6bnVsbH19&frame=false&hideCard=false&hideThread=false&id=1372898575710101506&lang=en&origin=https%3A%2F%2Fwww.weforum.org%2Fagenda%2F2021%2F09%2Ftuna-species-showing-signs-of-recovery-ocean-conservation%2F&sessionId=9a5cf26f921eeb92ec936397b8ae668fce46bba4&theme=light&widgetsVersion=1890d59c%3A1627936082797&width=550px

Climate change is an inextricable part of the threat to our oceans, with rising temperatures and acidification disrupting fragile ecosystems. The Forum runs a number of initiatives to support the shift to a low-carbon economy, including hosting the Alliance of CEO Climate Leaders, who have cut emissions in their companies by 9%.

Is your organization interested in working with the World Economic Forum? Find out more here.

A sustainable approach and why the ocean matters

Tackling the issue of overfishing and its impact on marine life, as well as other challenges like climate change, is a key part of the United Nations’ Sustainable Development Goals (SDGs).

SDG 14 ‘Life Below Water’ is focused on just this. Explanatory notes for the goal say that “careful management of this essential global resource is a key feature of a sustainable future”. And target 14.4 focuses specifically on the need for effective regulation to end overfishing and for science-based management plans in order to restore fish stocks.

All of this matters because of the crucial role a healthy ocean plays – as a food source, for livelihoods and as a key weapon in the fight against climate change.

Because, as Peter Thomson, UN Special Envoy for the Ocean and Co-Chair of Friends of Ocean Action told the World Economic Forum in August, “you can’t have a healthy planet without a healthy ocean”.

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