White marlin: Abundance of a look-alike species clouds population status of a million dollar fish

The prized white marlin is among the most overexploited open-ocean fish. It's the subject of intense international recovery efforts. A new study now shows that a look-alike species, the roundscale spearfish, makes up a relatively high proportion of the fish identified as "white marlin". As such, current biological information on white marlin is likely contaminated by a second species, and past white marlin population size assessments are now uncertain.

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