Question

write about food chain observed in aquatic ecosystem

Answer 1

Aquatic Food Chain: The food chain which occurs in aquatic water is called aquatic food chain.

e.g. Algae → Protozoa → Small Insects → Large aquatic Insects → Small fish → Large fish



Hope this helped you.

Answer 2

 

The food chain cannot have more than five steps. The food-chain starts from the producer (Green plants). The next 2nd step is herbivores. The 3rd step is made by omnivores. The 4th step is made by the carnivores. The 5th step is the bacterial level (decomposers). The dead bodies of plants and animals are decomposed into simple forms by the decomposers i.e. bacteria. These simple forms get mixed with the soil. In this way a food chain can have not more than five steps.

Aquatic Food Chain: The food chain which occurs in aquatic water is called aquatic food chain.

e.g.   Algae  →  Protozoa   →  Small Insects   →   Large aquatic Insects   →   Small fish  →  Large fish

In the aquatic food chain small algae is producer and zooplankton are herbivores i.e. primary consumer, small fishes are secondary consumer and large fishes are tertiary consumer.

The main function of Aquatic food chain is that:

It depicts the structure of the living components of hydrosphere.It transfers energy and materials.