Exam 11: Sustaining Aquatic Biodiversity

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.

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.

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

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

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 ____.

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

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

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

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

Which U.S.state is leading the way in establishing marine protected areas where fishing will be banned or strictly limited?

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

In 2010,the UN indicated that what percentage of the world's people are living along or near the ocean,mostly in large coastal cities?

In 1947,the U.S.government established the Everglades National Park to help preserve the wilderness of this system.Why didn't this protection effort work?

Sylvia Earle is leading a campaign called Mission Blue to finance research and to ignite public support for a global network of marine protected areas,which she dubs ____.

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.

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

Research indicates modern industrial fishing has been a key factor in the depletion of up to 80% of the populations of some wild fish species in only 10-15 years.

All the nations of the world are overfishing the world's global oceans,taking _____ more than the sustainable yield of fish.

Use the figure above to answer the following question(s). -What is purse-seine fishing,what types of fish does it target,and which letter depicts it on the figure?

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