Hi aspirant...!

Hope you're doing great...!

So with regard of you're query. In the global environment, an ecosystem is a natural unit comprising living and nonliving components.

ECOSYSTEM IN ACQATIC CONDITIONS:

Lakes, ponds, rivers, and streams are all part of the freshwater ecosystem.

Beetles, trout fish, and stoneflies make up the Lotic environment.

Lentic environment: lentic ecosystem includes lakes and ponds.

Wetlands include marshy environments such as swamps, marshes, bogs, and water lilies in plants, and dragonflies in animals.

Sharks, crabs, worms, and shellfish are examples of ocean creatures.

Lobsters, snails, insects, and fish are examples of coastal creatures.

Reefs, seas, oceans, and tidal zones are examples of marine aquatic ecosystems.

hope this will helps you...!

GOOD LUCK....!