Exam 11: Sustaining Aquatic Biodiversity

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

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

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

(Short Answer)
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About 10% of the wading birds in the Everglades National Park have vanished.

(True/False)
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The purpose of mitigation banking is to ____.

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

(True/False)
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In recent years, jellyfish blooms have ____.

(Multiple Choice)
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The Columbia River dam system has benefited many people, but it has ____.

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

(Multiple Choice)
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Ocean acidification is defined as rising levels of acid in ocean waters due to the ocean's absorption of ____ from the atmosphere.

(Multiple Choice)
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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.

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

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

(Multiple Choice)
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  Use the figure above to answer the question(s)below. What is trawl fishing, what types of fish does it target, and which letter depicts it on the figure? Use the figure above to answer the question(s)below. What is trawl fishing, what types of fish does it target, and which letter depicts it on the figure?

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

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

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

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

(Multiple Choice)
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The traditional approach to estimating fish populations is the ____.

(Multiple Choice)
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Biodiversity is higher in the surface region of the ocean rather than in the bottom region of the ocean.

(True/False)
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