Exam 11: Sustaining Aquatic Biodiversity

High-latitude oceans may be reaching an acidity ____________________, which poses a serious threat to sea life, and may serve as an early warning about a problem that may become more widespread in the future.

Marine reserves would consist of a system of large reserves on the ____________________ and smaller reserves in ____________________.

By 1975, commercial whaling had killed enough whales that 8 of 11 major species were extinct.

Despite their ecological value, the United States has lost more than ____ of its coastal and inland wetlands since 1900.

A 2003 study by conservation biologists estimates that _____ percent or more of large, open-ocean fishes such as tuna, swordfish, and marlin have disappeared since 1950.

The two types of whales are the toothed whales and the baleen whales.

The greatest marine biodiversity is located

Modern industrial fishing has caused as much as __________ % depletion of some wild fish species in only 10-15 years.

Use the Figure above to answer the following question(s). -What happened in 1992?

The Florida Everglades Case Study points out the problems associated with competing interests.In this case, the needs of a rapidly growing urban population compete with the needs of a massive, complex ecosystem.As the human population continues to grow, competition will grow.Is it important for an ecosystem such as the everglades to be restored given the cost and potential impact on the needs of the human population? Explain.

The leatherback sea turtle is the only warm-blooded sea turtle.

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?

Creating and restoring wetlands has become a profitable business.

Use the Figure above to answer the following question(s). -Which letter indicates trawl fishing?

Since the 1986 International Whaling Commission moratorium on killing whales went into effect, no whales have been killed by the nations of the world.

Many land developers are trying to weaken wetland protections instituted by the Federal government.

Whales and humans are both air-breathing mammals and are generally understood to be intelligent.Whales have become iconic as a symbol of the relationship between humans and nature.Choose one of the following questions to answer. a.Should the high regard many people have for whales give the whales a special status when it comes to being hunted? Explain. b.Should the fact that whales are intelligent mammals play a role in deciding whether whales should be hunted? Explain. c.Is it appropriate in the 21st Century to allow exceptions to bans on hunting for cultural and/or religious reasons? Explain.

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.

Some countries use market-based systems to help control access to fisheries.One such program is the

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