MIDAlpha TitleTitleYearColor/BWRunning TimeFormatsAbstractTopics
2502SALT MARSHES: BORDER BETWEEN SEA AND LANDSALT MARSHES: BORDER BETWEEN SEA AND LAND1973color23 min16mm Salt marshes are shown to be productive borders that provide an abundance of food for marsh animals and for the clams, shrimp, oysters and other commercially valuable fishes which spend at least part of their lives in estuaries associated with salt marshes. While the salt marshes are resilient and able to rebuild themselves after a certain amount of damage, they cannot withstand heavy trampling, severe oil damage, filling or dredging.