List two ecological roles that fungi play in the marine environment.

They help to decompose

They are pathogens of Marine life

And help in nutrient cycling.

Explanation:

Fungi are eukaryotic organisms that produces spores, have woven filaments called hypae and are found in both terrestrial and aquatic environment.

Fungi in Marine environment play critical roles in the environment.

Marine fungi are decomposers, they help to breakdown or decompose Woody or herbaceous substrates in Marine habitat. They have the ability to to breakdown cellulose into smaller particles that will be needed in the ecosystem and ensuring the release of nutrients.

Fungi are pathogens if Marine habitat.

They transmit and and infect Martine organisms with different diseases, there by wrecking havoc on them.

they deliver oxygen to the blood