Dolphin Food Chain
Dolphin
food chain is
similar to the food chain of some whales.
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Plankton eats the bodies of dead animals in the ocean.
Krill - small, shrimplike animals -
eat plankton
Squid and small fish eat krill.
Large squid and fish eat small squid and fish.
Dolphins eat the fish and squid, and they also take crustacians and octopus.
Sharks and killer whales eat dolphins and
Killer whales eat sharks.
Squid and small fish eat krill.
Large squid and fish eat small squid and fish.
Dolphins eat the fish and squid, and they also take crustacians and octopus.
Sharks and killer whales eat dolphins and
Killer whales eat sharks.
The Problem-
- Unfortunately, if the smallest of prey creatures is exposed to even low level toxins from pollution of the water, it moves up the food chain and becomes concentrated in the tissues of the larger predators like marine mammals. This is called "food chain magnification."
- Planktonic organisms and nektonic animals, (small creatures like krill), both range over great expanses. Both carry heavy metals, pesticides, sometimes even radiation and disease-causing organisms through all of the oceans on earth. More and more marine mammals are being poisoned by contamination of our oceans.
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