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Galapagos Food Web

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Sea lions

Humpback Whales

Green sea turtles

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Zooplankton

Fur seals

Anchovies and sardines

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Common name- zooplankton

Scientific name- Hyperia macrocephala

Habitat-live on surface of ocean

Environmental threats-acidification of oceans

How it fits- eats phytoplankton

Common Name- Anchovy and Sardine

Scientific Name- Engraulidae and Sarinops Sagax

Habitat- live on open ocean

Environmental threats- overfishing

How it fits on the food web- it feeds on plankton

Common name- fur seal

Scientific name- Arctocephalus gazella

Habitat-Live in colonies on rocks with shaded overhangs that protect them from the daytime

Environmental threats- they are incidentally captured and drown while fishing operations

Common name- humpback whale

Scientific name- megaptera novaengliae

Habitat- coastal waters and shallow banks

Environmental threats- entanglement in fishing gear

How it fits- eats zooplankton and small fish

Additional info- toothless

Common name- galapagos sea lions

Scientific name- Eumetopias jubatus

Habitat- live on beach but give birth on ocean

Environmental threats- commercial fishing and entangling

Common name- green sea turtles

Scientific name- chelonia mydas

Habitat- live near coastlines and islands and live in bays and protected shores, but come out to reproduce

Environmental threat-The greatest threat is from the commercial harvest for eggs and food. Incidental catch in commercial shrimp trawling is an increasing source

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How it fits in the food web- eat fish and squid

Additional information- at night fur seals feed offshore diving about 30m

How it fits- sharks and killer whales eat them

Additional info.- feed both day and night to depths of 200m

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How it fits- it eats jellyfish and crustacean

Additional info.- migrate great distances in search of ulva

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Producers

Galapagos Food Web

Killer Whales

Phytoplankton

Groupers

Galapagos penguins

Galapagos sharks

Ulva

1.-2.The largest population would be in trophic level 1 and the smallest population would be as we get higher up on the food web

2. The Galapagos shark and Killer whale are considered top carnivores since they are at the top.

3. An example is fishing and the organisms getting tangled also el nino can affect it.

Common name-killer whales

Scientific name- orcinus orca

Habitat- found on both open ocean and coastal waters

Environmental threats- disease and food supply

Common name- phytoplankton

Scientific name- Symbiodinium

Habitat- live near surface using sunlight, carbon dioxide, and water to produce food and oxygen

Environmental threats- el Niño decreases the number of phytoplanktons

Common name-groupers

Scientific name- epinephelinae

Habitat- ocean, Caribbean sea

Environmental threats-disappearance of coral reefs

How it fits- eat small fish

Common name- Galapagos shark

Scientific name- Carcharhunus Galapagensis

Habitat-Clear waters around rocky bottoms and coral reefs

Environmental threats-fishing activities and/ or bycatch

Common name- sea lettuce

Scientific name- Enteromopha

Habitat- shoreline to depts of about 8-10m

Environmental threats- warm water and lack of nutrients

How it fits- eaten by turtles

Additional info-looks like seaweed when fully grown

Common name-banded penguins

Scientific name- Spheniscus mendiculus

Habitat-coastal areas where they can nest on land and hunt in the offshore waters

Environmental threats- el Niño event and human disturbances to their nesting habitats

How it fits- eaten by zooplankton and other large organisms

Additional info- plankton outweigh all the sea animals

How it fits the food web- it eats fur seals, sea turtles

Additional information- reach 3-4 m in length. Human divers in water the sharks are very curios and get near but aren’t aggressive. Large adult shark can be size of a human diver

How it fits- eat fur seals, sea lions

Additional info- reach 6.5m

Additional info- grow more than 1m

How does it fit in the food web- it gets eaten by sharks, fur seals, and sea lions

Additional info.- grow to about 36cm tall

They can’t fly

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