Columbia subject headings:
Harvard subject headings:
Marine biology--Chesapeake Bay (Md. and Va.)--Periodicals.
Natural resources--Chesapeake Bay Region (Md. and Va.)--Periodicals.
Princeton subject headings:
Marine biology--Chesapeake Bay Region (Md. and Va.)--Periodicals.
Natural history--Chesapeake Bay Region (Md. and Va.)--Periodicals.
Natural resources--Chesapeake Bay Region (Md. and Va.)--Periodicals.
Periodicals.