Ch. 6

Lowest zone in ocean, dark, cold and little DO, but has nutrients for species.

Gently sloping, animals hide, has many shorebirds.

Low narrow sandy isalnds, wanted for development on back dune, but structures can be destroyed by flooding, erosion, storms

Middle zone of ocean, dimly lit and has no producers, dominated by fish and zooplankton.

Bottom of lake, mostly decomposers detrivores that feed on falling dead matter and washed in sediment.

Bottom dwellers like barnacles oysters worms lobsters and crabs

Land areas covered with water all or part of the year

Warm nutrient rich shallow water that extends from high tide mark on land to the continental shelf

submerged part of continent

When corals become stressed and algae die out, leaving white or bleached skeleton of calcium carbonate

Form in clear warm coastal waters in tropics and subtropics. very diverse and thrive in constant high salinity

When human inputs of nutrients accelerate eutrophication of lakes

Includes many worms, take in mud and extract nutrients

land area that delivers runoff sediment and dissolved substances to a stream

Brightly lit upper zone of ocean where phytoplankton carry out photosynthesis, low nutrient levels, high DO, contains large fastswimming fish

Oysters clams and sponges that pass water thriugh their body and extract nutrients from it

End of river that empties into the ocean

Inland wetland that receives excess water during heavy rains and floods

flowing, like streams and rivers

standing, like lakes, ponds, and inland wetlands

Precipitation that does not sink or evaporate

Inland wetland with trees

headwater streas merge to form wider deeper warmer streams that flow down gentler slopes and have less DO. Supports phytoplankton and fish

Covered with freshwater all or part of the time