The ocean is essential to life on Earth. It covers more than 70% of the planet's surface, regulate the climate, and supply the oxygen we need to survive.
Seafood is our last major food source that is truly wild.
35.5%
of stocks fished at biologically unsustainable levels *
56%
decline in marine populations **
65 million
employed in primary production in fisheries and aquaculture ***
The risks to ocean health
Seafood is our last major food source that’s truly wild, and it provides food security for millions of people around the world who rely on it as their primary source of protein. Seafood is also vital to the livelihoods of fishermen and fishing communities around the world.
According to the United Nations Food and Agriculture Organization 2025 Review of the state of world marine fishery resources, 35.5% of stocks monitored in 2021 were fished at biologically unsustainable levels.
The size of marine populations declined by 56% between 1970 and 2020, according to WWF’s Living Blue Planet Report 2024.
Key factors contributing to the problem are overfishing, illegal and destructive fishing, and climate change. It’s not just the loss of species and ecosystems; the problem also has a serious impact on communities.
What is overfishing?
What is the MSC doing?
We work with fisheries, scientists, and industry stakeholders to make sure our ocean is fished sustainably and that it’s easy for consumers to find and buy certified sustainable seafood.
By choosing seafood products with the MSC blue fish label, you are supporting fishermen that take care of our oceans and sending a signal to other fisheries to do the same.
What is sustainable fishing?
Dive deeper
Our approach
Our approach means everyone can support a healthy ocean while enjoying seafood, not avoiding it.
The impact on communities
Fish is an important source of food and income for communities around the world. For many people, sustainable fishing is a necessity, not a luxury.
What is the
The MSC was formed to address the problem of overfishing. Our program works against illegal and destructive fishing practices.

