This title is currently offered on VHS, but can be converted to DVD upon request.
Running Time: 15 minutes
Scientists explore marine ecosystems that are changing as a result
of ever-growing fishing pressures. This case study and its compelling underwater footage
document how the harvest of sea urchins off the coast of Maine impacts other species
in that marine community. Scientist-divers track predator-prey balances and life cycle
events such as spawning. By studying a complete ecosystem as well
as species life cycles, the methods, timing and location of
harvest can be adjusted to promote sustainable practices.