Question 1

What percentage of the world's oceans is fully protected,and closed to fishing and other harmful human activities?

Accepted Answer

A)  0.8% 
B)  3.5% 
C)  5.0% 
D)  7.2% 
E)  11% 
A)  0.8% 
B)  3.5% 
C)  5.0% 
D)  7.2% 
E)  11%

Question 2

The traditional approach to estimating fish populations is the ____.

Accepted Answer

A)  potential sustained yield 
B)  minimum sustained yield 
C)  commercial sustained yield 
D)  maximum sustained yield 
E)  optimum sustained yield 
A)  potential sustained yield 
B)  minimum sustained yield 
C)  commercial sustained yield 
D)  maximum sustained yield 
E)  optimum sustained yield

Question 3

Define bycatch and ghost nets.

Accepted Answer

Bycatch species are considered fish,mari

Question 4

While leatherback sea turtles survived the impact of the giant asteroid that probably wiped out the dinosaurs more than 60 million years ago,they and other sea turtle species may not survive the growing ____________________ on their environment.

Accepted Answer

The answer of While leatherback sea turtles survived the impact...

Question 5

Some coastal fishing communities have developed allotment and enforcement systems for controlling fish catches in which each fisher gets a share of the total allowable catch.These systems help sustain fisheries and jobs and are called ____.

Accepted Answer

A)  cap and trade system 
B)  total allowable catch system 
C)  co-management systems 
D)  catch-share systems 
E)  community-based management system 
A)  cap and trade system 
B)  total allowable catch system 
C)  co-management systems 
D)  catch-share systems 
E)  community-based management system

Question 6

Projected climate change threatens aquatic biodiversity and ecosystem services,partly by contributing to ____.

Accepted Answer

A)  an increase in carbon storage in oceans 
B)  spread of tropical diseases 
C)  decreased salinity of water 
D)  rising sea levels 
E)  UV radiation from ozone depletion 
A)  an increase in carbon storage in oceans 
B)  spread of tropical diseases 
C)  decreased salinity of water 
D)  rising sea levels 
E)  UV radiation from ozone depletion

Question 7

Biologist E.O.Wilson proposed a list of priorities for protecting aquatic biodiversity.What is one of those priorities?

Accepted Answer

A)  Decrease government subsidies for commercial fishing. 
B)  Identify and preserve the world's aquatic biodiversity hot spots. 
C)  Stop the melting of the arctic ice. 
D)  Stop ocean and freshwater acidification. 
E)  Find ways to move people living in or near aquatic ecosystems elsewhere. 
A)  Decrease government subsidies for commercial fishing. 
B)  Identify and preserve the world's aquatic biodiversity hot spots. 
C)  Stop the melting of the arctic ice. 
D)  Stop ocean and freshwater acidification. 
E)  Find ways to move people living in or near aquatic ecosystems elsewhere.

Question 8

The Columbia River has 119 dams and a fish problem.If you were the person in charge of determining what to do,what would you decide? Would you seek to free up the river in favor of the fish,or would you make a few accommodations for the fish and leave the dams in place? Explain.

Accepted Answer

The intent of these questions is to high

Question 9

What is a major threat to the biodiversity and ecological function of the Great Lakes?

Accepted Answer

A)  invasive nonnative species 
B)  ocean sea level rise 
C)  saltwater intrusion 
D)  acidification 
E)  tourism 
A)  invasive nonnative species 
B)  ocean sea level rise 
C)  saltwater intrusion 
D)  acidification 
E)  tourism

Question 10

Oceans will become more acidic as a result of the absorption of carbon dioxide.

Accepted Answer

A) True 
 B)False

Question 11

Many scientists and policy makers are suggesting an ecosystem approach to sustain aquatic systems.The cornerstone of this would include establishment of fully protected ____.

Accepted Answer

A)  marine reserves 
B)  benthic zones 
C)  high seas zones 
D)  continental shelf areas 
E)  wildlife reserves 
A)  marine reserves 
B)  benthic zones 
C)  high seas zones 
D)  continental shelf areas 
E)  wildlife reserves

Question 12

There are seven species of sea turtles.All are in danger of becoming extinct,mostly due to ____.

Accepted Answer

A)  female sea turtles not laying large enough clutches of eggs 
B)  lower sea levels in the past 100 years 
C)  human activities that occurred over 100 years ago 
D)  human impacts on their environment taking place during the last 100 years 
E)  impacts from giant asteroids 
A)  female sea turtles not laying large enough clutches of eggs 
B)  lower sea levels in the past 100 years 
C)  human activities that occurred over 100 years ago 
D)  human impacts on their environment taking place during the last 100 years 
E)  impacts from giant asteroids

Question 13

The greatest marine biodiversity is located ____.

Accepted Answer

A)  in the sunlit region of the ocean 
B)  in the surface region of the ocean 
C)  under the polar ice caps 
D)  in the open ocean 
E)  in coral reefs 
A)  in the sunlit region of the ocean 
B)  in the surface region of the ocean 
C)  under the polar ice caps 
D)  in the open ocean 
E)  in coral reefs

Question 14

In order to protect a stream or lake from excessive inputs of nutrients and pollutants,we must protect its ____.

Accepted Answer

A)  biodiversity 
B)  tributaries 
C)  riparian zones 
D)  banks 
E)  watershed 
A)  biodiversity 
B)  tributaries 
C)  riparian zones 
D)  banks 
E)  watershed

Question 15

What is not one of the ecosystem services of rivers?

Accepted Answer

A)  deliver nutrient to seas to help sustain fisheries 
B)  purify water 
C)  renew and renourish wetlands 
D)  remove silt that accumulates in deltas 
E)  provide habitats for wildlife 
A)  deliver nutrient to seas to help sustain fisheries 
B)  purify water 
C)  renew and renourish wetlands 
D)  remove silt that accumulates in deltas 
E)  provide habitats for wildlife

Question 16

To encourage more responsible fishing practices,an important component of sustaining aquatic biodiversity and ecosystem services is bottom-up pressure from consumers demanding ____.

Accepted Answer

A)  sustainable seafood 
B)  fishing subsidies 
C)  fishing only along coasts 
D)  seafood caught by trawlers 
E)  seafood raised on fish farms 
A)  sustainable seafood 
B)  fishing subsidies 
C)  fishing only along coasts 
D)  seafood caught by trawlers 
E)  seafood raised on fish farms

Question 17

When it appears that it is no longer profitable to continue fishing as a result of overfishing,the fish populations are said to be ____.

Accepted Answer

A)  locally extinct 
B)  commercially extinct 
C)  economically extinct 
D)  biologically extinct 
E)  ecologically extinct 
A)  locally extinct 
B)  commercially extinct 
C)  economically extinct 
D)  biologically extinct 
E)  ecologically extinct

Question 18

According to environmental economists,attaching even crudely estimated ____________________ to river and stream ecosystem services would help to sustain them.

Accepted Answer

The answer of According to environmental economists,attaching even crudely estimated...

Question 19

Scientists are now cataloging species in the deepest part of the ocean by using ____.

Accepted Answer

A)  man driven deep-sea vehicles 
B)  remotely operated deep-sea vehicles 
C)  global satellite positioning equipment 
D)  sonar fish-finding devices 
E)  spotter planes 
A)  man driven deep-sea vehicles 
B)  remotely operated deep-sea vehicles 
C)  global satellite positioning equipment 
D)  sonar fish-finding devices 
E)  spotter planes

Question 20

Discuss how projected climate change is expected to influence marine ecosystems.

Accepted Answer

Climate change is expected to influence

Exam 11: Sustaining Aquatic Biodiversity

What percentage of the world's oceans is fully protected,and closed to fishing and other harmful human activities?

The traditional approach to estimating fish populations is the ____.

Define bycatch and ghost nets.

While leatherback sea turtles survived the impact of the giant asteroid that probably wiped out the dinosaurs more than 60 million years ago,they and other sea turtle species may not survive the growing ____________________ on their environment.

Some coastal fishing communities have developed allotment and enforcement systems for controlling fish catches in which each fisher gets a share of the total allowable catch.These systems help sustain fisheries and jobs and are called ____.

Projected climate change threatens aquatic biodiversity and ecosystem services,partly by contributing to ____.

Biologist E.O.Wilson proposed a list of priorities for protecting aquatic biodiversity.What is one of those priorities?

The Columbia River has 119 dams and a fish problem.If you were the person in charge of determining what to do,what would you decide? Would you seek to free up the river in favor of the fish,or would you make a few accommodations for the fish and leave the dams in place? Explain.

What is a major threat to the biodiversity and ecological function of the Great Lakes?

Oceans will become more acidic as a result of the absorption of carbon dioxide.

Many scientists and policy makers are suggesting an ecosystem approach to sustain aquatic systems.The cornerstone of this would include establishment of fully protected ____.

There are seven species of sea turtles.All are in danger of becoming extinct,mostly due to ____.

The greatest marine biodiversity is located ____.

In order to protect a stream or lake from excessive inputs of nutrients and pollutants,we must protect its ____.

What is not one of the ecosystem services of rivers?

To encourage more responsible fishing practices,an important component of sustaining aquatic biodiversity and ecosystem services is bottom-up pressure from consumers demanding ____.

When it appears that it is no longer profitable to continue fishing as a result of overfishing,the fish populations are said to be ____.

According to environmental economists,attaching even crudely estimated ____________________ to river and stream ecosystem services would help to sustain them.

Scientists are now cataloging species in the deepest part of the ocean by using ____.

Discuss how projected climate change is expected to influence marine ecosystems.

Environmental Problems, their Causes, and Sustainability

Science, matter, energy, and Systems

Ecosystems: What Are They and How Do They Work

Biodiversity and Evolution

Biodiversity, species Interactions, and Population Control

The Human Population and Its Impact

Climate and Biodiversity

Aquatic Biodiversity

Sustaining Biodiversity: The Species Approach

Sustaining Terrestrial Biodiversity: The Ecosystem Approach

Food, soil, and Pest Management

Water Resources

Geology and Nonrenewable Mineral Resources

Nonrenewable Energy

Energy Efficiency and Renewable Energy

Environmental Hazards and Human Health

Air Pollution

Climate Disruption and Ozone Depletion

Water Pollution

Solid and Hazardous Waste

Cities and Sustainability

Economics, environment, and Sustainability

Politics, environment, and Sustainability

Environmental Worldviews, ethics, and Sustainability

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