13 terms

Marine & Freshwater Ecosystems

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Plankton
Microscopic organisms (Kingdom Protista) that float or drift freely in marine & freshwater environments.
(phytoplankton - plants/producers, zooplankton - animals/consumers)
Kelp
Large seaweeds (Brown algae -Kingdom Protista) that provide an important habitat and food source for a variety of marine & freshwater organisms.
Sargassum
A surface floating variety of ocean kelp found in the Sargasso sea.
Estuary
Area where fresh water from rivers mixes with salt water from ocean
Intertital zone
Zone where the ocean meets the land and is exposed to air for part of the day due to tides; Home to crabs and other organisms adapting to air & water.
Neritic zone
Zone between the intertidal and oceanic where the floor begins to slope downward; the water is warm and receives sunlight. Home to dolphins, fish, sea turtles, corals, etc.
Oceanic zone
Area beyond the Neritic Zone where the seafloor drops sharply down to the Benthic Zone; Home to whales, sharks, and fish.
Benthic zone
The ocean floor which includes the deepest part of the ocean that receive no sunlight; Home to worms, crabs and adapted fish.
Littoral zone
Freshwater ecosystem closest to the edge of a lake or pond which receives sunlight to the bottom of the zone; Home to lilies, frogs, insects, smaller fish, etc.
Open water zone
The area of a lake or pond that extends from the littoral zone across the top of the water and goes as deep as sunlight reaches; Home to bass, trout, etc.
Deep water zone
The area of a lake or pond beneath the open-water zone where no sunlight reaches; Home to catfish, carp, fungi, bacteria, etc.
Marsh
A treeless wetland where plants such a grasses grow; Home to grasses, wild rice, turtles, frogs, birds, alligators, etc.
Swamp
A wetland ecosystem where trees and shrubs grow; Home to cypress trees, snakes, alligators, many fish, etc.