Ocean Pollution
The Great Pacific Garbage Patch is an area 3 times greater than ___________________.
Texas
In the 1960s thousands of dolphins were caught in purse seining while fishing for ___________________.
tuna
Occurred off the coast of Alaska in March 1989 when an oil tanker struck a reef off the coast of Alaska and spilled more than 10 million gallons of oil.
Exxon Valdez Oil Spill
All of the following are ways that has been encouraged for tuna fisherman to use to avoid accidentally catching dolphins except for:
Throw Special Dolphin Repellent Out
Use Circle Hooks
Use Acoustic Deterrents (Pingers)
Set Nets Below Surface
As marine wildlife goes down, there is an increase for algal blooms which create toxins that can then be “passed up” the food chain from fish to all the way up to ___________________.
Marine Birds
What size ocean marine reserve is best for the environment and fisheries?
Medium
Name one effort that is being made to preserve or restore a coral reef.
Coral Trees
Living Seawalls
Conserving Genetic Diversity and Reintroducing Coral
Within 1-2 years of establishing ocean marine reserves, the average size of the organisms increased by what percent?
31%
Name a fish not high in mercury
canned tuna, salmon, and catfish
Name an example of fish that was previously thought of as undesirable but has now been remarketed to sell to consumers? _________________________________________
“Toothfish” once thrown overboard is now the “Chilean Sea Bass”
and
the “Slimehead” is now the “Orange Roughy”