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fishery dependent survey

How severe are shark population decreases, and how do we know?

Conservation, fisheries, marine science, Natural Science, Science, sharksApril 19, 2012

John Shepherd once said that counting fish is like counting trees, except that fish move and you can’t see them because they’re underwater. This is true with sharks as well. It’s basically impossible to know how many sharks there are. Fortunately, a variety of methods exist that can be used to determine population trends. In […]