Tanker's Reef Kelp Restoration Diver Quiz

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It's 10 am. You and your buddy arrive at Del Monte Beach. The plan is to swim out to the grid to cull urchins, but you discover the waves are uncomfortably high. You know the wind will likely pick up by noon. What should you NOT do? *

1 point

Re-evaluate your plan and decide whether today is a smart day to shore dive to Tanker's Reef.

Keep quiet about conditions and dive according to the original plan with your buddy. It’ll work out.

Forgo smashing urchins and decide it's a great day to dive the breakwater instead.

Decide that visiting the aquarium, having lunch, or going home is the best choice.

Which statement is FALSE? *

1 point

An unprecedented marine heat wave hit the Pacific coast from 2014-2016

Many sea star species were decimated by a wasting disease starting in 2013.

Sea otters love to eat the starving urchins in urchin barrens.

Southern Monterey Bay has many areas where the kelp forest ecosystem has been destroyed and only urchin barrens remain.

What is your goal when you are culling urchins? *

1 point

To avoid harming other marine life on Tanker's Reef.

To damage all five sections of each urchin so that it can’t continue eating kelp.

To allow kelp to regrow.

All of the above.

Which statement about purple and red urchins is FALSE? *

1 point

Purple and red urchins have tube feet that they use for walking and "smelling" what's in the water around them.

Purple and red urchins have five reproductive organs (gonads).

Purple and red urchins have poisonous spines—do not touch them!

Purple urchins may use their tube feet to cover themselves with rocks and snails.

Which surface is acceptable for culling urchins? *

1 point

Bare rock

Sand

On rock covered with pink encrusting algae.

All of the above.

Which statement about culling urchins is TRUE? *

1 point

It's OK to poke a single hole in the top because it will die eventually.

You don't have to worry about harming other reef animals because they will come back to life.

Your goal is to crush each urchin so that it cannot keep eating kelp.

None of the above.

The steps to participate in Tanker's Reef kelp restoration, in proper order, are: *

1 point

1. Cull urchins, 2. Register, 3. Report data three weeks later

1. Cull urchins, 2. Register, 3. Get a lane assignment, 4. Report data

1. Register, 2. Get a lane assignment, 3. Cull urchins 4. Report data

1. Report data, 2. Get a lane assignment, 3. Register, 4. Cull urchins

Southern sea otters are a threatened species. Divers working at Tanker's Reef must report any marine mammal disturbances. How do you know if you have disturbed one? *

1 point

A sea otter reacts to you by lifting its head to look at you.

An otter sees you, then dives underwater.

Your presence causes an otter to change its behavior in any other way.

All of the above.

In Monterey Bay, a fishing license allows you to take up to 35 urchins per day outside of any marine protected area. The same fishing license allows you to cull an unlimited number of urchins where? *

1 point

Anywhere

Only in Marine Protected Areas

At Tanker's Reef only.

Only in the Tanker's Reef Grid.

True or False? You should never try to cull an urchin if you cannot see the tip of your hammer. *

1 point

True

False

Which image shows a correctly culled urchin? *

1 point

Which statement about urchins in urchin barrens is FALSE? *

1 point

Urchins in urchin barrens are full of calorie-rich gonads and other tissues.

Urchins in urchin barrens can survive for years in a starving state.

Urchins in barrens have shriveled gonads and other tissues.

All of the above.

Before you go urchin-culling at Tanker's Reef, you need to *

1 point

make sure you have a hammer and small slate to record your data.

evaluate the dive conditions for safety.

All of the above.

Divers who are culling on the grid should begin at *

1 point

the orange buoy

any of the yellow buoys

the white mooring buoy

None of the above

You and your buddy should *

1 point

stay in visual contact at all times.

agree on a lost buddy procedure.

have enough time to do a safety stop and have at least 500 PSI when you reach the surface.

All of the above.

Which two invasive species should you look for while you are culling urchins? *

1 point

Bat stars and red octopus

Devil weed (Sargassum horneri) and red rust bryozoan (Watersipora subtorquata)

Bull kelp and southern sea palm

Sunflower stars and garibaldi

Required

If an urchin is back in a crack you should *

1 point

try to remove it, even if you bump into other invertebrates, then break it up into small pieces on rock or sand.

leave it for now. It will come out later and another diver will be able to cull it .

reach in with your hammer and smash it.

All of the above.

Which organizations will be monitoring our efforts at Tanker's Reef to ensure we are culling with care? *

1 point

The California Department of Fish and Wildlife

Monterey Bay National Marine Sanctuary

Reef Check California

All of the above

True or False? You do not need to report your data as long as you culled plenty of urchins. *

1 point

True

False

How can divers prevent accidentally harming invertebrates on Tanker's Reef? *

1 point

By making sure their hammer and gauges are not hanging where they can bump the reef.

By maintaining neutral buoyancy so their fins and body don't smash living things.

By only touching bare rock, sand, or urchins.

All of the above.

Which strategy will help you avoid harming marine life on the reef? *

1 point

Maintain good buoyancy control while culling urchins.

Don't allow your hammer, gauges, or other equipment to drag on the reef.

Move urchins that are close to other invertebrates to bare rock of sand to cull.

All of the above.

If urchins are seen climbing up kelp stipes or on the holdfast, you should pull them off and cull them on rock or sand *

1 point

True

False

Please explain what inspired you to take this Kelp Forest Restoration Diver class.

0 points

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