Question 1

Salmon populations in the Columbia River have increased by 35% since the dam system was put in place.

Accepted Answer

The statement is false. Salmon populations in the Columbia River have decreased due to the impact of the dam system on their natural migration patterns and spawning grounds.

Question 2

Some fisheries biologists and managers have begun using the ____________________ to replace the maximum sustained yield.

Accepted Answer

The answer of Some fisheries biologists and managers have begun...

Question 3

Invasive species are blamed for about ____________________ of fish extinctions in the United States since 1900.

Accepted Answer

The answer of Invasive species are blamed for about ____________________...

Question 4

Wetlands serve as important reservoirs of ____________________ that provide ecological and economic services.

Accepted Answer

The answer of Wetlands serve as important reservoirs of ____________________...

Question 5

Humans have explored only about ____________________% of the earth's global ocean and know little about its biodiversity.

Accepted Answer

The answer of Humans have explored only about ____________________% of...

Question 6

Creating and restoring wetlands has become a profitable business.

Accepted Answer

As wetlands have become recognized for their ability to mitigate climate change and provide important ecosystem services, there has been an increase in the number of companies focused on creating or restoring wetlands for profit. These companies may receive funding from government or private entities seeking to mitigate their impact on natural habitats, or they may sell credits for carbon, nutrient, or habitat benefits provided by the restored wetland.

Question 7

Many fishery and environmental scientists are interested in the ____________________, which means sharply reducing fish harvests and closing some overfished areas until they recover and we have more information.

Accepted Answer

The answer of Many fishery and environmental scientists are interested...

Question 8

The ____________________ system includes coastal communities and the government working together to manage fisheries.

Accepted Answer

The answer of The ____________________ system includes coastal communities and...

Question 9

The UN estimates that ____________________% of all ocean pollution comes from land-based coastal activities.

Accepted Answer

The answer of The UN estimates that ____________________% of all...

Question 10

Governments around the world give a total of more than $30 billion per year in subsidies to fishers, which partly contributes to overfishing.

Accepted Answer

This is a well-documented fact supported by numerous studies and reports, including those from the United Nations and various environmental organizations. The subsidies encourage fishing beyond sustainable levels and can lead to the depletion of fish populations and harm to marine ecosystems.

Question 11

Biodiversity is generally higher in the _______________ region of the ocean than in the _______________ region because of the greater variety of habitats and food sources.

Accepted Answer

The answer of Biodiversity is generally higher in the _______________...

Question 12

About 10% of the wading birds in the Everglades National Park have vanished.

Accepted Answer

The situation is more severe; about 90% of the wading birds in the Everglades National Park have vanished since the 20th century, largely due to human activities and environmental changes.

Question 13

Nearly ____________________ of the world's annual fish catch by weight consists of non-target bycatch species, that is, not the fish species that was intended to be caught.

Accepted Answer

The answer of Nearly ____________________ of the world's annual fish...

Question 14

As a result of changes in and around the Everglades, it is now less than __________ its original size and much of it has dried out.

Accepted Answer

The answer of As a result of changes in and...

Question 15

_______________ is an invasive species along the east coast of North America that was probably released from outdoor aquariums damaged by Hurricane Andrew in 1992.

Accepted Answer

The answer of _______________ is an invasive species along the...

Question 16

The _______________ marine biodiversity occurs in coral reefs, estuaries, and on the deep-ocean floor.

Accepted Answer

The answer of The _______________ marine biodiversity occurs in coral...

Question 17

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...

Question 18

Consumers have a role to play in sustaining aquatic biodiversity by demanding ____________________.

Accepted Answer

The answer of Consumers have a role to play in...

Question 19

Strategies for protecting the earth's precious biodiversity will not be implemented without bottom-up political pressure from individual citizens and groups.

Accepted Answer

Without the pressure and advocacy of individual citizens and groups, policymakers may not prioritize biodiversity conservation initiatives, as they may be focused on other issues. Therefore, it is important for individuals and groups to engage in activism and advocacy efforts to push for policies and actions that protect biodiversity.

Question 20

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...

Quiz 11: Sustaining Aquatic Biodiversity