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20 minutes
Grades 7-Adult
1994
With Study Guide
Produced by Natural Arts Films for The Wetlands Institute
A general overview of salt marsh ecology is captured here
beautifully with crisp aerial, underwater and time lapse
photography.
To most people it looks like dead grass and mud, but the salt
marsh is one of the most productive ecosystems on Earth,
teeming with life, from the microscopic plankton to the grand
snowy egret. Marshes protect the mainland from flooding,
filter sediment and some pollutants from the water, and are
home to many species of fish, shellfish and birds.
Seasonal changes in the plant and animal community highlight
the immeasurable value of this habitat. Migrating birds use
the marsh area as a resting and breeding stopover point on the
way to tropical winter homes. And that classic of biology
class, the food chain, is seen in action among the diverse
life forms of the salt marsh, including grass shrimp and
fiddler crabs. In spring, the terrapin turtles move from the
marsh creeks to higher ground to lay their eggs. In August,
hatchlings the size of a quarter race to the water from their
hot, incubating under-sand nests.
A good look at the workings of very important wetlands.
Awards: CINE Golden Eagle
ESTUARY, OCEANOGRAPHY, MARINE BIOLOGY, WETLANDS, COASTAL
ECOLOGY
ISBN: 1-56029-566-X
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