aquatic biomes
DESCRIPTION
Aquatic Biomes. Freshwater Lakes and Ponds Streams and Rivers Marshes and Swamps Marine Oceans Coastal wetlands. Freshwater. Lakes and Ponds Very small and seasonal to very large and deep Summer top layer warmest Winter bottom layer is warmest. Lake and Pond Life. Insects - PowerPoint PPT PresentationTRANSCRIPT
Aquatic Biomes• Freshwater– Lakes and Ponds– Streams and Rivers– Marshes and Swamps
•Marine– Oceans
– Coastal wetlands
Freshwater
Lakes and Ponds• Very small and
seasonal to very large and deep
• Summer top layer warmest
• Winter bottom layer is warmest
Lake and Pond Life• Insects• Frogs, Turtles• Fish – feeders and predators• Plants- more along shore less the deeper
you go.– Ponds will have plants even in the deepest
parts• Microscopic life
Rivers and Streams• Bodies of water moving in one
direction• Source – spring, snow melt,
lake• Cold and fast moving near
source– Higher oxygen levels
• Middle – diverse ecosystem, slower moving
• Mouth – warmest, lowest oxygen levels
River Life• Fast moving cold water –
Trout and Dobson fly• Middle parts of river– Bass, turtles, frogs– Otters
• Mouth of the river– Carp and catfish
Wetlands
Swamp• Trees• Poorly drained
land near rivers
Marsh• Low flat land• Shallow waters• Reeds and cattails• Rich sediments
Wetland Animal Life
• Ducks, geese• Muskrats, nutria• Turtles, frogs, newts,
salamanders• Alligators
Wetland Plant Life
• Marshes– Cattails
• Swamps– Bald cypress
Biotope Aquarium – Amazon River
Biotope Aquarium – African Great Lakes
Marine Biome
Oceans• Largest biome on the
planet• Divided into zones
according to how much light penetrates the water:– Sunlight – Twilight– Midnight
Sunlight Zone• Down to about 600 feet
below surface• 90 % of marine life lives here• Photosynthesis can take
place here• Includes tidal zones
Twilight Zone
• From 600 to 3000 feet below the surface
• Very little light• No plant life• Specialized animals
Midnight Zone
• 3000 feet to the bottom• No light – no plants• Cold – except by thermal
vents• Very high pressure
Coastal Wetlands• Halophytic plants – salt loving plants• Where fresh water meets salt water• Brackish water• Erosion and flood control
Salt Marshes
• Where rivers meet oceans• Temperate • Abundant bird life• Tidal flooding – floods
everyday• Sand or mud flats
Mangrove Swamps
• Mangrove trees – tangled roots
• Pneumatophores – special adaptation that supplies tree with air
• Tropical• Protects shoreline