World fishery stocks have been in danger for some time, which in turn has created a desire for “sustainable” seafood. But this has prompted their own backlash in the form of films like Seaspiracy which assert that sustainable fishing is an oxymoron. This in turn has prompted criticism from academics who assert that the film went too far in its assertions.

With so much information out there, it can be hard to know whether the fish on your plate or your local seafood restaurant is truly sustainable. But there are a few things that we can do to help improve the health of our world’s oceans.

Pick the Right Species

A common argument for vegetarianism is that plants are lower on the food chain than animals, which means that it takes more resources to get the same amount of energy from an animal (especially cows) compared to rice or soybeans.

Even if you are not a vegetarian, try to apply the same principle to seafood. Shellfish and small fish like sardines are lower on the food chain than more popular fish like salmon or tuna. These fish repopulate more quickly, are healthier, and are less prone to overfishing.

Try Different Kinds

What fish do you typically eat? Here in the United States, it is normally shrimp, salmon, tuna, or tilapia. But by eating so much of any one kind of fish, we place inordinate pressure on these species and increase the risk of overfishing.

So instead, consider trying out new species. Alternatives to salmon include trout, mackerel, milkfish, and yellowtail (I find yellowtail in my personal experience to be a particularly delicious and cheap fish). Halibut, sardines, and trout can be a substitute for tuna. Above all else, do not be afraid to experiment and try new fish palettes. Your tastebuds and the ocean will thank you for it.

Figuring Out Labels

It seems that there are a thousand and one labels which state that this fish is sustainable or not. But how much can you trust these labels, and which ones are the best?

The two most reliable labels are the Marine Stewardship Council and the Aquaculture Stewardship Council. But also do your own research at the store or market. Ask your seller where the fish came from, especially if you are shopping locally as you should.

Fight Climate Change

For all the concerns about overfishing, Dr. Ray Hilborn asserts that overfishing is a lesser concern to the world’s oceans than plastics, ocean acidification, and above all climate change. Hilborn points out that the most numerous organisms in the ocean are not fish, but small creatures called phytoplankton. Phytoplankton are not affected by fishing, but they are affected by warmer, more acidic oceans.

If you really want to help save the ocean, look for ways to fight climate change. Talk to your friends and family. Contact politicians. Commit to emitting less emissions and energy. These measures are just as important to saving the world’s oceans as what fish you eat for dinner.

TIME BUSINESS NEWS