27 - Marine Biodiversity

previous card
thumbnailsfull sizefreskquiz?
next card
previous card
thumbnailsfull sizefreskquiz?
next card

For the moment, marine biodiversity is more endangered by overfishing than by climate change or acidification. But in the long term, these two phenomena will considerably increase their pressure. The FAO estimates that between 660 and 820 million people worldwide, about 10% of the world's population, are directly or indirectly dependent on fisheries and aquaculture.

Earth from Space
Coral reefs stand out as some of the most biodiverse marine ecosystems globally, supporting over 25% of all known marine species while occupying less than 1% of the ocean floor. Thriving in tropical waters, these vibrant underwater communities owe their existence to warm temperatures and abundant sunlight, which fuel the growth of coral colonies and the myriad of organisms that call them home.
Credits :© Copernicus Sentinel data (2015)/ESA
previous card
thumbnailsfull sizefreskquiz?
next card

2
Causes

Marine Biodiversity

Marine Biodiversity

1
Consequence

Marine Biodiversity

Yes, because of fishing.

4
Other possible causes

Marine Biodiversity

There's probably some sort of link here...

Marine Biodiversity

With this link, we highlight all the degradations that humans are inflicting on marine life such as plastic pollution and overfishing. It's irrelevant to climate change, but it's interesting to make the connection anyway.

Marine Biodiversity

Calcification problems do not only affect pteropods and coccolithophores. Coral reefs are also affected, for example, so this link is acceptable.

Marine Biodiversity

Oils slicks in the ocean are an example of a link between fossil fuels and marine biodiversity.