Estuaries
Synthesis Question -- how can plankton control if they move up-river or downriver in an estuary?
• What is an estuary?
• What is an estuary?
• What is an estuary?
• How does the water move within them?
• How much ocean water enters estuary?
• More or less than the river water?
• Why are estuaries important? Where land meets the sea– Pollution– Nutrients
• Where people enjoy the sea.
• Where people pollute the sea.
• Biologically very productive– Where are there nutrients?– Where is there sun?– Estuaries have it all
• Great fisheries (are or were)
• Brooding place for deep water fish
• How do baby fish and other larvae get into and out of estuary?
• Issues -- too many nutrients
• Pfiesteria & Nutrients
• Over fishing. Does this make nutrient loading worse? Likely, at least for over-harvesting of oysters.