Have Shark Populations Boomed? - Spencer Roberts

In this episode, we dive into the ongoing debate about whether shark populations are truly booming or if this claim is based on misconceptions. With growing concerns from fishermen, particularly in the U.S. and viral discussions on social media, we explore whether sharks are increasing in numbers or simply recovering to historical baseline levels. Joining the conversation is marine ecologist and investigative journalist Spencer Roberts, who provides insights into the factors fuelling the "shark overpopulation" hysteria. Tune in for an evidence-based look at shark conservation, media narratives, and what’s really happening in our oceans.

The Great American Shark Slaughter
Stop Shark Poaching (video, petition, thread)

Pelagic shark declines:

https://www.nature.com/articles/s41586-020-03173-9

Deep-sea shark declines:
https://www.science.org/doi/10.1126/science.ade9121

Coastal shark declines:
https://www.science.org/doi/10.1126/science.1079777Deep-sea

Only shark sanctuaries have seen shark mortality decrease:
https://www.science.org/doi/10.1126/science.adf8984

Catch and release laws aren't enough to save sharks:
https://onlinelibrary.wiley.com/doi/abs/10.1111/faf.12892

Note: Within minute 41:00 of today’s episode, Spencer said NOAA but was talking about FWC. Please don’t panic, we’re aware. Carry on.

Support the show