Are krill secondary consumers?

In the Antarctic food chain krill are primary consumers and baleen whales, penguins, seals and many kinds of fish and other birds are secondary consumers when feeding on krill. Many animals are a mixture of primary, secondary, tertiary (3rd) and quaternary (4th) consumers as they eat a variety of prey.

1. What consumer eats krill?
2. Are krill and zooplankton primary consumers?
3. Who is at the top of the food chain in Antarctica?
4. How do krill sustain whales?
5. Are crustaceans secondary consumers?
6. Are krill primary consumers?
7. Are zooplankton secondary consumers?
8. Are zooplankton primary or secondary consumers?
9. Are Dolphins consumers or producers?
10. Are penguins secondary consumers?
11. Does killer whale eat krill?
12. Why are krill numbers decreasing?
13. How do krill reproduce?
14. Are whales primary consumers?

What consumer eats krill?

Krill is the near-exclusive food for giant blue whales, and seabirds like auklets and shearwaters. Commercially valuable salmon, rockfish, flatfish, sardines and squid thrive on krill. When abundant, animals migrate thousands of miles to feed on krill. But when absent, the entire marine ecosystem suffers.

Are krill and zooplankton primary consumers?

Phytoplankton and algae form the bases of aquatic food webs. They are eaten by primary consumers like zooplankton, small fish, and crustaceans. Primary consumers are in turn eaten by fish, small sharks, corals, and baleen whales.

Who is at the top of the food chain in Antarctica?

At the top of the food web there are larger animals (consumers) such as fish, penguins, seals and whales.

How do krill sustain whales?

Therefore, krill have it pretty easy – they eat as much as they want and make tons of babies, as there is no dearth of food. This is also quite favorable for whales, because whales often find incredibly huge numbers of krill huddled up in swarms.

Are crustaceans secondary consumers?

Although secondary consumers can include some shrimp, they are mostly small fish like herring and sardines, and the juvenile stages of larger fish and jellyfish. Crustaceans like lobsters and crabs also fall into this category.

Are krill primary consumers?

In the Antarctic food chain krill are primary consumers and baleen whales, penguins, seals and many kinds of fish and other birds are secondary consumers when feeding on krill. Many animals are a mixture of primary, secondary, tertiary (3rd) and quaternary (4th) consumers as they eat a variety of prey.

Are zooplankton secondary consumers?

The zooplankton community is composed of both primary consumers, which eat free-floating algae, and secondary consumers, which feed on other zooplankton.

Are zooplankton primary or secondary consumers?

Examples of primary consumers include zooplankton, ducks, tadpoles, mayfly nymphs and small crustaceans. Secondary consumers make up the third level of the food chain.

Are Dolphins consumers or producers?

Dolphins are consumers like many other animals. Consumers are animals that need to eat other plants and/or animals in order to survive. Dolphins are a type of consumer called a carnivore because they eat only meat. Dolphins are part of an ocean food chain.

Are penguins secondary consumers?

penguins are the secondary consumers.

Does killer whale eat krill?

Krill eat phytoplankton (tiny ocean plants) and zooplankton (tiny ocean creatures), squid eat krill, penguins eat krill and squid, fish eat krill and other fish, seals eat krill, fish and squid, Leopard seals eat krill, squid, fish and penguins. d squid, Killer whales eat squid, fish, penguins, seals and other whales.

Why are krill numbers decreasing?

Krill populations have declined by 80 percent since the 1970s. Global warming has been blamed for part of that decrease because the ice that is home to the algae and plankton they feed on is receding. Campaigners say recent developments in fishing technology are worsening the problem.

How do krill reproduce?

This krill reproduces by a behavior similar to internal fertilization. The male deposits a packet of sperm on the female's body, and as she releases her eggs, they pass through the sperm and become fertilized. Like in all crustaceans, the Antarctic krill's shell is a skeleton on the outside of its body.

Are whales primary consumers?

Primary consumers areherbivores feeding on the phytoplankton, algae, seaweed etc. Secondary consumers are mainly carnivores who prey on other animals. ... Examples of secondary consumers: Carnivorous fish, seals, sea stars, whales, squid, some crabs ,lobsters etc.