Aquatic Systems
Marine
Human Activities Marine
Freshwater
Lakes, Rivers, and Streams
100
Saltwater covers this percentage of Earth's surface.
What is 71%?
100
An example of Natural capital in a Marine Aquatic System.
What is see page 172 in 17th Edition?
100
The gravitational pull of the moon and sun causes tides to rise and fall every six hours in these zones.
What intertidal zones?
100
This freshwater zone has the highest biological diversity.
What is the littoral zone?
100
Large natural bodies of standing freshwater formed by precipitation, runoff, streams, rivers, and groundwater seepage.
What is a lake?
200
These salt and freshwater zones of the biosphere can support life.
What are aquatic life zones?
200
The coastal zones amount to this percentage of world ocean area.
What is 10%
200
These low, narrow, sandy islands form offshore, parallel to the coastline. They provide a home to a variety of shorebirds.
What are barrier islands?
200
Oxygen levels are lower in this freshwater lake zone...low light levels decrease photosynthesis.
What is profundal zone?
200
This term is used to describe a flowing freshwater system such as a river or stream.
What is a lotic system?
300
The all-inclusive term used to describe weakly swimming, free-floating organisms.
What is plankton?
300
The coastal zone cotains this percentage of all marine species and is the site of most large commercial fisheries.
What is 90%
300
This is one example of a human activity that is a major threat to marine systems.
What is coastal development, runoff of nonpoint sources, point-source pollution, overfishing, fishing trawlers, invasive species, climate change...?
300
This land area delivers runoff, sediment, and dissolved substances to streams.
What is a watershed?
300
A term used to describe a lake system tha has a small supply of plant nutrients...poorly nourished lake. Often deep with steep banks.
What is oligotrophic?
400
A term used to describe strongly swimming consumers such as fish, turtles, and whales.
What is nekton?
400
Where rivers meet the sea..enclosed bodies of water where seawater mixes with freshwater.
What estuaries?
400
This is one example of natural capital degradation to coral reefs.
What is ocean warming, rising ocean acidity, algae growth (excess nutrient runoff), bleaching, rising sea levels, > UV exposure, anchor damage, fishing/diving damage?
400
In this zone near the headwaters of a stream, many fish have flattened bodies to live under stones.
What is a source zone?
400
This term is used to describe a lake with an excess supply of nutrients needed by producers. Typically shallow, muddy, green, high turbidity and net primary productivity.
What is eutrophic?
500
One of several key factors that determine the numbers and types of organisms found in aquatic life zones.
What is temperature, DO content, food availability, light, and nutrients for photosynthesis...such as CO2, NO3, PO4?
500
These beds are not where you lie...they consist of at least 60 species of plants that grow underwater in shallow marine and estuarine areas.
What are sea grass beds?
500
This is one of the major problem with Chesapeake Bay, the largest estuary in the U.S.
What is population growth?
500
This freshwater zone absorbs and slows the velocity of floodwaters from storms, cyclones, and tsunamis.
What is a floodplain zone?
500
In this zone, headwater streams merge to form wider, deeper, and warmer streams that flow down gentler slopes with fewer obstacles.
What are transition zones?
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