Bio Water biomes

Photic Zone

Upper layer of ocean water where light is sufficient for photosynthesis

Aphotic Zone

Lower layer of ocean where little light penetrates

Abyssal Zone

2000-6000m below the ocean surface

Benthic Zone

Located at the bottom of aquatic biomes and contains sand, organic and inorganic sediments. The muddy bottoms of bodies of water

How are communities distributed in water?

according to water depth, degree of light penetration, and distance from shore

What lake season of seasonal turnover is being described?
Coldest water lie below surface ice
Water becomes progressively warmer as depth increases

Winter

What lake season of seasonal turnover is being described?
No thermal stratification because the upper and lower layers mix
Oxygen and nutrients cycle throughout

Spring

What lake season of seasonal turnover is being described?

Warm surface water and cold deep water

Thermocline

Summer

What lake season of seasonal turnover is being described?
Surface water cools and sinks
Water layers, oxygen and nutrients are mixed

Fall

Thermocline

zone of abrupt temperature change

What physical environment is being described?
Light stratification, may have seasonal or year around thermocline

Lakes

What physical environment is being described?
Inundated (overwhelmed) with water at least some of the time

Wetlands

What physical environment is being described?
High volume and high speed of flow; characterized by their current

Rivers and Streams

What physical environment is being described?
Transition between river and sea
Salt water flows upward during high tide and leaves during low tide
Geological: tidal channels, islands, levees and mudflats

Estuaries

What chemical environment is being described?
Salinity, oxygen concentration, and nutrients vary

Lakes

What type of Lake's chemical environment is being described?
nutrient poor, oxygen rich, low detritus

Oligotrophic Lakes

What type of Lake's chemical environment is being described?
nutrient rich, oxygen poor, high rates of decomposition

Eutrophic lakes

What chemical environment is being described?
High plant production, high rates of decomposition, oxygen poor water/soil

Wetlands

What chemical environment is being described?
Headwaters are oxygen rich, downstream waters are oxygen poor

Rivers and streams

What chemical environment is being described?
Nutrient rich and brackish water

Estuaries

Headwaters

where streams/rivers begin and are further from the mouth
cold, clear, turbulent, swift, narrow and rocky

Downstream

waters move toward the mouth
warmer, more turbid, wide, meandering, and have silty bottoms

Brackish

slightly salty water, mix of both fresh and salt water

Lake Photosynthesizers

rooted and floating plants in shallow water, phytoplankton and cyanobacteria in deeper waters

Wetland Photosynthesizers

pond lilies, cattails, sedges, bald cyprus, woody plants (swamps), and mosses (bogs)

Rivers and streams photosynthesizers

phytoplankton and rooted aquatic plants (headwater streams)

Estuaries Photosynthesizers

grasses, algae, phytoplankton

What biome is one of the most productive and has plants well adapted to water-saturated soil?

Wetland

Lake Heterotrophs

zooplankton, invertebrates, fish

Wetland Heterotrophs

invertebrates, birds, herbivores (crustaceans, insects, muskrats) and carnivores (otters, frogs, alligators, herons)

Rivers and Streams Heterotrophs

diverse fish and invertebrates

Estuaries Heterotrophs

worms, oysters, crabs, fish, marine invertebrates, waterfowl and marine mammals

Lake Human Impact

runoff leads to algal blooms, oxygen depletion, fish kills

Wetland Human Impact

90% of this biome have been destroyed via filling or draining. Hint: Disney filled and drained land to build Disney World.

Estuaries Human Impact

filling, dredging (removal of sediment often to deepen water to allow larger ships in ports), pollution