Fishing is like a bank account

Photo courtesy of: The Daily Mail
A recent post on the Science Magazine news blog repeats a comment by Elliot Norse of the Marine Conservation Biology Institute. Regarding deep sea fisheries, Dr. Norse says:
“A population of fish is like a bank account, and its productivity is like the interest it earns. In shallow waters, fish reproduce quickly, and populations would tend to expand 10% annually if not checked by mortality, so they can be profitably harvested year after year. It’s like spending the interest from your savings account
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