Guide of sustainable fishing


How to eat fish sustainably?

Intérieur - poissons (2)

In collaboration with oceanography students at ULiège, UNI for Change presents a Decision Tree for sustainable fish and shellfish consumption: an intuitive and scientific tool verified by experts, enabling you to make the right choices when buying fish.

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iconeInfo Practical guides for choosing the right fish/shellfish

There are a number of guides to help you make the right choice for each type of fish or shellfish, according to the vulnerability of the species and/or the season in which it is best eaten. Here are just a few:

iconeDownload Seasonal fishing calendar

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Find out more about fishing techniques and the fish and shellfish to avoid.

How can we eat fish without destroying ecosystems?

Between endangered species, diseases that can be transmitted to us, fishing methods, labels and prices, it's not always easy to find your way around. Yet fish is one of the most widely consumed foods.

The challenges of fish consumption

Here, the Green Office decision tree aims to give you the important issues surrounding eco-responsible fishing, and to guide you in your choice of fish among the displays. It also aims to present actions that consumers can take at their own level. Here we present a few figures and explanations to put the decision tree into context and provide information on sustainable food.

In 2020, fish consumption was around 20 kg per capita, and 34% of fish stocks were overexploited.
Industrial fishing exploits at least 55% of the world's sea surface, i.e. more than four times the surface area occupied by agriculture on land.

The first thing to do to preserve marine ecosystems is to reduce your consumption of fish and shellfish.

Different fishing techniques Sources

Find out what's at stake, as well as our advice in three areas (origin / season / species) via the decision tree at the top of the page.

Want to go one step further?

UNI for Change's step-by-step challenges enable you to change your everyday life and move towards a more sustainable society.

Examples of challenges on this theme:
  • Eat fish from sustainable fisheries/farms
updated on 8/28/25

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