Firstly, watch Seaspiracy. Secondly, vow to never eat fish again. It is a big change but avoiding it where you can will be a great first step!
Why is this important?
To protect our sea, to protect the wildlife that live in the sea. So we can have a better future for our children and genertations to come. So we stop depriving the planet of all its natural resources to quickly and far to soon!