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Environment
Nathan Pacoureau, Postdoctoral Research Fellow, Global Shark Trends Project, Simon Fraser University

Reversing the decline in shark and ray populations is possible, but requires strong governance and management

Sharks and rays are rapidly declining globally, and their situation is representative of many other exploited marine species that lack scientific monitoring. (Carlos Diaz/Ocean Image Bank)

The oceans remain vast and inscrutable. While technology has revolutionized our capacity to track threats to biodiversity on land, our understanding of the status of marine biodiversity remains fragmented and biased toward economically high-valued species.

Most fish species are not scientifically monitored, which is done by collecting and analyzing population data. Global marine fish catches continue to be underestimated, with as much as one-third missing.

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