Distributor:  Bullfrog Films
Length:  12 minutes
Date:  1981
Genre:  Expository
Language:  English
Grade level: 7-12, College, Adult
Color/BW:  Color
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This title is included in the following collections: The Bullfrog Films Collection, The Docuseek2 Complete Collection 2nd Edition


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A close-up look at wetlands ecology.


Using exquisite underwater micro-photography, this National Film Board of Canada production provides a close-up look at an estuary-- the biologically important wetlands where the fresh water of a river meets the salt water of the ocean. As we watch barnacles feeding themselves and the comic acrobatics of diving ducks, the film details the complex ecology of estuarine life; and, in an understated manner, makes a powerful case for protecting wetlands.

'The concept of the food chain is soundly illustrated in this film...Provides a concise, enjoyable, and informative look at life in an estuary. Recommended for instructional use in general biology and ecology courses.' Choice

'Within its small, beautifully circumscribed compass, this is a perfect example of a fully achieved work which ultimately links the complexity of one particular ecostructure (and fills us with respect for its perfection) to our present-day social webs.' Amos Vogel, Film Comment

'The ecological principles are the same worldwide and their treatment in this film is valuable for upper elementary through adult education on estuarine ecology.' National Wetlands Newsletter


Best of Category, National Educational Film Festival
Runner-Up, Chicagoland Educational Film Festival
Best of Category, NAAEE Festival
ALA Media For Libraries
Henry Fonda Award, River City Film Conference


Main credits

White, Don (screenwriter)
White, Don (film director)
Jones, Peter (film producer)

Other credits

Cinematography, Doug McKay; editing, Haida Paul; music, Peter Bjerring.

Distributor credits

The National Film Board of Canada

Don White

The National Film Board of Canada
Don White

Docuseek2 subjects

Plant Biology
Marine Biology
Animal Behavior
Habitat Destruction
Oceans and Coasts
Rivers and Lakes

Distributor subjects

Life Science
Oceans and Coasts


estuary, wetlands, ecology, micro-photography; "Estuary"; Bullfrog Films

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