Miscounted Fish May Be Skewing Population Sizes

A new study is suggesting that some fish being “more prone” to being caught are potentially skewing scientists into overestimating fish numbers

When scientists affix tracking tags to fish and release them into the ocean, they expect that some will live, some will die, and some will go on to be caught another day. The number of tagged fish researchers catch on repeated surveys provides a way to gauge fish populations. But according to a new study, a subset of fish is prone to being recaptured multiple times. 

Hakai Magazine