Columbia subject headings:
Fisheries--Canada--Periodicals.
Marine biology--Canada--Periodicals.
Natural history--Canada--Periodicals.
Harvard subject headings:
Fisheries--Canada--Periodicals
Marine biology--Canada--Periodicals.
Natural history--Canada--Periodicals.
Princeton subject headings:
Fisheries--Canada--Periodicals.
Marine biology--Canada--Periodicals.
Natural history--Canada--Periodicals.
Periodicals.