Answer:
in some ways, upwelling can be a mixed blessing to coastal ecosystems. It can infuse coastal waters with critical nutrients that fuel dramatic productivity,The deeper water that rises to the surface during upwelling is rich in nutrients. These nutrients “fertilize” surface waters, encouraging the growth of plant life, including phytoplankton. These phytoplankton serve as the ultimate energy base in the ocean for large animal populations higher in the food chain, providing food for fish, marine mammals, seabirds, and other critters.
so in case if you were wondering when i will actually give you the answer here it is: coral reefs
Explanation: coral reefs depend a lot on the marine ecosystem around them and need rich nutrients to keep surviving so an upwelling for a coral reef is a blessing
