Last updateTue, 18 Apr 2017 8am

The Science of No-Take

Teenager copyDr Roger Grace has been collecting data about the northeast coast of New Zealand for 50 years, focusing mainly on crayfish and snapper. The first empirical data was gathered in 1971. Since then, much has changed on our coast - the abundance and size of fish in non-protected areas have steadily declined, while the replenishing stocks in protected zones, such as Goat Island and Tawharanui, have skyrocketed. This two-part video explains why.


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