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Chapter 11 Sustaining Aquatic Biodiversity

Total questions: 40

Worksheet time: 20mins

Name
Class
Date
1.

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

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

2.

The excessive turbidity, or cloudiness, of Lake Wingra in Madison, Wisconsin, was caused by the introduction of which of the following?

a)

Nile perch

b)

marine seaweed

c)

catfish

d)

water lilies

e)

common carp

3.

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

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

4.

Warmer and more acidic ocean water is stressing ____, the foundation of the marine food web.

a)

algae

b)

phytoplankton

c)

cichlids

d)

sea turtles

e)

sharks

5.

A concentration of a particular wild aquatic species suitable for commercial harvesting in a given ocean area or inland body of water is called a ____.

a)

fish farm

b)

fish habitat

c)

fish hatchery

d)

fishery

e)

fish bloom

6.

A fishing method called, ____ fishing, is used to catch surface-dwelling species such as tuna, mackerel, anchovies, and herring, which tend to feed in schools near the surface or in shallow areas.

a)

drift-net

b)

long-line

c)

purse-seine

d)

trawler

e)

rod and reel

7.

Which of the following is defined as the area of ocean needed to sustain the fish consumption of an average person, a nation, or the world?

a)

fishprint

b)

footprint

c)

resource demand

d)

ocean view

e)

ocean resource footprint

8.

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

a)

locally extinct

b)

commercially extinct

c)

economically extinct

d)

biologically extinct

e)

ecologically extinct

9.

One result of the increasingly efficient global hunt for fish is that larger individuals of commercially valuable wild species are ____.

a)

becoming scarce

b)

becoming more prevalent

c)

becoming smaller in size

d)

feeding on new food sources

e)

migrating to new ocean areas

10.

As large species of fish are overfished, the fishing industry is shifting to smaller marine species and about 90% of this catch is converted to fishmeal and fish oil, most of which is ____.

a)

fed to cattle

b)

fed to farmed fish

c)

made into nutrient supplements

d)

used for cooking

e)

discarded

11.

In recent years, jellyfish blooms have ____.

a)

been degraded by commercial fishing

b)

benefited ecotourism

c)

altered ocean current flows

d)

been declining in numbers

e)

been rising in numbers

12.

Which term describes species that play crucial roles in helping to keep their ecosystems functioning?

a)

cornerstone

b)

foundation

c)

keystone

d)

critical

e)

primary

13.

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

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

14.

HIPPCO is an acronym that aids in remembering ____.

a)

the names of extinct species

b)

African animals that are threatened with extinction

c)

threats to the world's biodiversity

d)

the names of international treaties dealing with endangered species

e)

the organizations working toward saving threatened species

15.

Sea-bottom habitats are being threatened by ____.

a)

the largest predator fish in the sea

b)

little human activity because they are inaccessible

c)

dredging operations and trawlers

d)

coastal development

e)

shrimp farming

16.

Ocean acidification is defined as rising levels of acid in ocean waters due to the ocean’s absorption of ____ from the atmosphere.

a)

N2O (nitrous oxide)

b)

CaCO3 (calcium carbonate)

c)

H2CO3 (carbonic acid)

d)

CO2 (carbon dioxide)

e)

CO3 (carbonate ions)

17.

One invader that particularly worries scientists and fishers on the east coast of North America is a species of ____ native to the western Pacific Ocean.

a)

phytoplankton

b)

lobster

c)

sea bass

d)

lionfish

e)

cichlids

18.

The first letter "P" in the acronym HIPPCO stands for ____.

a)

perennial

b)

population

c)

pressure

d)

petroleum

e)

pesticides

19.

The greatest marine biodiversity is located ____.

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

20.

In 2011, an international panel of scientists concluded that because of a combination of habitat loss, overfishing, pollution, and ocean acidification, marine life is poised to enter a new period of ____.

a)

conservation

b)

resurgence

c)

mass extinction

d)

mass repopulation

e)

endangerment

21.

What is CITES?

a)

a treaty banning deep-sea exploration

b)

a treaty banning trade in endangered species

c)

a treaty banning barrier island development

d)

a treaty banning overfishing

e)

a treaty banning gill nets

22.

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

a)

marine reserves

b)

benthic zones

c)

high seas zones

d)

continental shelf areas

e)

wildlife reserves

23.

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 ____.

a)

cap and trade system

b)

total allowable catch system

c)

co-management systems

d)

catch-share systems

e)

community-based management system

24.

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

a)

sustainable seafood

b)

fishing subsidies

c)

fishing only along coasts

d)

seafood caught by trawlers

e)

seafood raised on fish farms

25.

The traditional approach to estimating fish populations is the ____.

a)

potential sustained yield

b)

minimum sustained yield

c)

commercial sustained yield

d)

maximum sustained yield

e)

optimum sustained yield

26.

The newer approach to estimating fish populations, one which takes into account interactions between species and has more room for error, is ____.

a)

maximum sustained yield

b)

minimum sustained yield

c)

commercial sustained yield

d)

potential sustained yield

e)

optimum sustained yield

27.

The purpose of mitigation banking is to ____.

a)

encourage sustainable fishing practices

b)

trade wetlands for forest lands

c)

allow for development of wetland for a fee

d)

require the restoration of all wetlands

e)

allow the destruction of wetlands if an equal wetland is created elsewhere

28.

What species is one of the biggest threats to the Great Lakes?

a)

sea lamprey

b)

cod

c)

jellyfish

d)

wild salmon

e)

cutthroat trout

29.

The Columbia River dam system has benefited many people, but it has ____.

a)

sharply increased populations of invasive salmon

b)

sharply reduced populations of wild salmon

c)

sharply reduced populations of herring

d)

inhibited migration patterns of trout

e)

inhibited reproductive cycles of common carp

30.

In 1968, the U.S. Congress passed the ____ to establish protection of rivers with outstanding wildlife, geological, scenic, recreational, historical, or cultural values.

a)

National Rivers and Wetlands Act

b)

National Rivers of Interest Act

c)

National Wild and Scenic Rivers Act

d)

Federal Freshwater Act

e)

Federal Scenic Waterways Act

31.

Which activity is least likely to be involved with the sustainable management of freshwater fisheries?

a)

supporting populations of commercial and sport fish species

b)

facilitating the introduction of commercially important nonnative species

c)

preventing over fishing

d)

building and stocking reservoirs and farm ponds

e)

controlling predators and parasites

32.

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

a)

invasive nonnative species

b)

ocean sea level rise

c)

saltwater intrusion

d)

acidification

e)

tourism

33.

What is not one of the ecosystem services of rivers?

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

34.

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

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.

35.

The Comprehensive Everglades Restoration Plan has several goals. Which goal below is not one of them?

a)

Restore the curving flow of the Kissimmee River.

b)

Build a series of massive dams to stop water leaving the Everglades.

c)

Remove 400 kilometers of canals and levees south of Lake Okeechobee.

d)

Buy 240 square kilometers of farmland and allow it to become marsh.

e)

Create 18 large reservoirs and underground storage areas.

36.

Protecting ____ and restoring them in areas where they have been destroyed are important ways to reduce the impacts of rising sea levels and storm surges, because these can slow storm-driven waves.

a)

coral reefs

b)

mangrove forests

c)

estuaries

d)

tidal basins

e)

algal blooms

37.

Sea turtles spend most of their lives traveling throughout the world’s oceans, but adult females almost always return to the beaches where they were born to lay their eggs.

a)

True

b)

False

38.

Rising sea levels from projected climate change luckily will not disrupt sea turtles because they are aquatic species.

a)

True

b)

False

39.

We have limited knowledge about marine biodiversity and its many functions.

a)

True

b)

False

40.

A number of new species, called bioinvaders, are being introduced to aquatic ecosystems, which increases biodiversity and benefits these systems.

a)

True

b)

False