• Question: How does the climate change make marine animals react?

    Asked by Sassy Sophie to Gemma on 17 Nov 2015.
    • Photo: Gemma Cripps

      Gemma Cripps answered on 17 Nov 2015:

      Hi Sassy Sophie

      There a lots of different reactions, they seem to all respond in a different way. One of the well-known reactions of marine creatures to global warming is a northward migration in the sea. This is because the seas are warming up, so they move northwards where the seas are colder, and at a temperature that they are used to. This means we are seeing less of our common fish species in our sea, which can affect how much fish we can have for food. Ocean acidification (another climate change effect) effects marine species that have a shell or a hard body of armour, e.g., sea snails, crabs, lobsters, krill. It affects them because ocean acidification makes it harder for them to grow their shells which delays their development. This can make them more vulnerable to predators. However, not all marine species react badly to climate change, some do really well! This means we will see big changes in our seas, with some species surviving climate change and others dying out.