Plankton feeders

During the June floods, the warm water of the Volga Delta stimulates the growth of planktonic animals, such as water fleas. A hydra catches a water flea. The plankton supports vast numbers of fish larvae, such as sticklebacks and carp. A male Caspian pipefish gives birth to small, live young, from his pouch. The baby pipefish swim around their father.

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