Elkhorn Slough Restoration

What type of an animal is this?

• A River Otter

• A Bathtub Otter

• A Swimming Pool Otter

• A Sea otter

Predators that keep the whole ecosystem intact (keep ecosystem together) are:

• A type of Keystone Species

• A type of dinosaur

• A type of Reptile

• A type of Hungry Hippo

A channel (waterway that looks like a river) in a marsh is called a

• Slough (pronounced SLOF)

• Slough (pronounced SLOO)

• Slough (pronounced SLOG)

• lake

What type of bird is this?

• A Stork

• A Sandpiper

• An Owl

• A Pelican

In the 1700's, there were over 20,000 Sea Otters in California waters, today there are very few left. They were hunted for their fur and their population was "decimated". What does decimated mean?

• Made extinct

• Reduced to a very few

• Increased

• Given Vaccines

Crab populations "suddenly exploded". What does that mean?

• Crab populations increased dramatically.

• Crabs exploded

• Crab populations declined dramatically

• Crabs went extinct

The European Green Crab that is proliferating here is INVASIVE. What does invasive mean?

• It invades a country by making war.

• It is in a vase

• It doesn't belong here. It belongs in Europe.

• It belongs here and in Europe

We heard two reasons why crabs are a problem. First, crabs eat all the sea grass on the sea floor and second,

• They bite people

• They bite other animals

• They destroy the marsh by eating the roots which hold the mud in place

• They help the marsh

Elkhorn Slough has abundant food for the rescued Sea Otters. What does "abundant" means?

• 1. Not enough food

• 2. Plenty of food

• Bad food

• Tasty food

We knew that Sea Otters eat the animal pictured here but did you know that it ALSO eats crabs. What is the animal in the picture here?

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