APES Ch. 7

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46 terms · Study Sheet #7

dissolved oxygen and nutrients

What 2 things do thriving coral reefs require?

phytoplankton

What would a new species of algae floating on the surface of a coastal zone most likely be classified as?

zooplankton

In a sample from a mud flat, you observe cyanobacteria under the microscope. It would most likely be classified as ________.

nekton

You would most likely classify a swordfish as a _______.

70

Oceans cover about __% of the earth's surface.

coastal

Which ocean zone covers the continental shelf?

open sea

What contains 90% of the surface area of the oceans and 10% of its plant and animal life?

coastal

Which zone has the world's highest net primary productivity per unit area?

estuaries

_______ exhibit variable temperatures and salinity.

mangroves

What are tropical coastal wetlands basic tree?

intertidal

Organisms of which zone are exposed to both air and underwater conditions?

limnetic

Which zone of a lake will toxic runoff affect first?

watershed management

What is necessary to protect streams and rivers from excessive input of nutrients?

benthic

Organisms living in which zone of a lake normally have poor eyesight?

eutrophic

Aquatic plants would most likely not be found in an ______ lake because of the light deprivation.

mitigation banking

What refers to creating or restoring as much wetlands as are destroyed?

agriculture

What are most of the wetlands that are lost used for?

third (source)

In the _____ zone of a river an ecologist would look for a deep meandering stream.

first (floodplain)

In the _____ zone of a river you would most expect to find plants adapted to attached rocks.

lake overturns

What bring oxygen to the lake bottom and nutrients to the surface?

thermocline

An ecologist would expect to find a _______ in a temperate lake in summer and winter.

temperate coastal wetlands

Where would you find bay, salt flat, mud flat and estuaries?

abyssal

In what zone might you find fish and crustaceans that are blind or have their own light?

light deprivation

Aquatic plants would most likely not be found in an eutrophic lake because of ________.

wetlands

_______ are essential portions of watersheds because they serve as the liaison between land and water resources.

inland wetlands

________ are valuable for recharging groundwater, recreation, biochemical cycling, and waterfowl habitat.

headwaters

If you fish for trout, you would be most likely to seek out the ________ of a stream.

temperate

What lake is most likely to show thermal stratification and restriction on mixing of surface and deeper waters during the summer?

oligotrophic

What lakes have few minerals and low productivity?

profundal

In what zone would you find fish adapted to cool, dark water of lakes.

limnetic

What zone is the open-water surface layer of a lake?

littoral

What zone is the nutrient-rich water near the shore of a lake?

benthic

In which zone of a lake would you find large numbers of decomposers?

bathyal

The twilight (dimly lit) zone of the sea

abyssal

Hydrothermal vents with chemosynthetic-based communities are characteristic of the ______ zone.

euphotic

In what zone does most photosynthesis in the sea occur?

beach erosion

The best long-range strategy to reduce _______ is preventing development on beach areas or behind dunes.

10

Marine biologists have estimated that bout ___% of the world's coral reefs have been destroyed by human activities.

threaten coral reefs: increased UV light, eroded soil from deforestation and poor land management, chemical pollution, and collection tourists.

threaten coral reefs: increased UV light, eroded soil from deforestation and poor land management, chemical pollution, and collection tourists

benthos

In what zone are lobster, oysters, sand worms, and decomposers?

Populations of organisms living in aquatic life zones may be limited by access to light, nutrient availability, and dissolved oxygen.

Populations of organisms living in aquatic life zones may be limited by access to light, nutrient availability, and dissolved oxygen.

Oxygen in water varies because of number of producers, number of decomposers, temperature, and number of consumers.

Oxygen in water varies because of number of producers, number of decomposers, temperature, and number of consumers.

Oceans are important because they regulate climates, provide a source of natural resources, participate in biochemical cycles, and are important in hydrologic cycle.

Oceans are important because they regulate climates, provide a source of natural resources, participate in biochemical cycles, and are important in hydrologic cycle.

Estuaries and coastal wetlands are important because they spawn/nurse fish and shell-fish, filter out waterborne pollutants, are breeding grounds for waterfowl, and habitat for alligators.

Estuaries and coastal wetlands are important because they spawn/nurse fish and shell-fish, filter out waterborne pollutants, are breeding grounds for waterfowl, and habitat for alligators.

Mangrove swamps serve as erosion protection, prevention of hurricane and typhoon damage, entrapment of sediment, and nursery.

Mangrove swamps serve as erosion protection, prevention of hurricane and typhoon damage, entrapment of sediment, and nursery.

over half

How much of the area of estuaries and coastal wetlands in the USA has been destroyed or damaged by sewage runoff, filling, and pesticide and heavy metal pollution.

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