Striped Bass Conservation, Atlantic Coastal Fisheries Management, and Marine Mammal Rescue Assistance Act of 2000

Title I: Atlantic Coastal Fisheries - Subtitle A: Atlantic Striped Bass Conservation - Amends the Atlantic Striped Bass Conservation Act to extend the authorization of appropriations to carry out such Act through FY 2003.

(Sec. 102) Requires the Secretaries of Commerce and the Interior to: (1) conduct a study to determine if the distribution of year classes in the Atlantic striped bass population is appropriate for maintaining adequate recruitment and sustainable fishing opportunities; and (2) report results to specified congressional committees along with a long-term plan to ensure a balanced and healthy population structure of Atlantic striped bass. Authorizes appropriations.

Subtitle B: Atlantic Coastal Fisheries Cooperative Management - Atlantic Coastal Fisheries Act of 2000 - Amends the Atlantic Coastal Fisheries Cooperative Management Act to extend the authorization of appropriations to carry out such Act through FY 2005. Authorizes amounts to be used to support the Atlantic States Marine Fisheries Commission's cooperative statistics program.

Title II: John H. Prescott Marine Mammal Rescue Assistance Grant Program - Marine Mammal Rescue Assistance Act of 2000 - Amends the Marine Mammal Protection Act of 1972 to direct the Secretary of Commerce to establish the John H. Prescott Marine Mammal Rescue Assistance Grant Program to provide assistance to eligible stranding network participants for: (1) marine mammal recovery and treatment; (2) data collection from living or dead marine mammals; and (3) facilities operation.

Caps grants at $100,000. Requires a 25 percent non-Federal matching amount, which may be in-kind contributions. Authorizes FY 2001 through 2003 appropriations.

(Sec. 203) Requires the Secretary to study environmental and biological factors responsible for the significant increase in mortality events of the eastern gray whale population and other potential impacts these factors may be having on such population. Authorizes appropriations.

(Sec. 204) Authorizes the Secretary to convey a retired National Oceanic and Atmospheric Administration fishery research vessel to the Government of American Samoa.

(Sec. 205) Amends the National Marine Sanctuaries Act to revise sanctuary designation standards.

(Sec. 206) Amends the Sustainable Fisheries Act to authorize appropriations for each fiscal year for grants to carry out Western Pacific fishery demonstration projects to promote traditional indigenous fishing practices.