Columbia subject headings:
Fishes--Bibliography--Periodicals.
Freshwater biology--Bibliography--Periodicals.
Marine biology--Bibliography--Periodicals.
Naval art and science--Bibliography--Periodicals.
Ocean--Bibliography--Periodicals.
Harvard subject headings:
Fishes--Bibliography--Periodicals.
Freshwater biology--Bibliography--Periodicals.
Marine biology--Bibliography--Periodicals.
Naval art and science--Bibliography--Periodicals.
Ocean--Bibliography--Periodicals.
Princeton subject headings: