This four episode podcast series explores the discovery of a sound. It is a faint but distinct sound produced by a fish, the Arctic cod. Only recently have scientists realized how important sound is in the lives of fishes. The Arctic cod was never thought of as a sound producing, or soniferous species, until researchers from the Juanes Lab put a recording device in an Arctic cod tank. The sound they heard was clearly biological, produced by the fish in the tank, and is now known as a 'grunt'. This one discovery launched a multi-year investigation into the sound producing ability of this species. Why do they produce sound? How do they produce sound? When do they produce sound? Is noise pollution interfering with their sound production in the wild? These are the questions this series will dive into, getting accounts from the investigating scientific team, bioacousticians, and fish sound experts. This series also explores noise pollution in the ocean more broadly, and how it is affecting not just fish, but all sound producing marine species.

Latest Episodes

What does it all mean?

In the final episode of the Codcast, we travel to Oregon and visit the research facility where the team is housing and recording the Arctic cod. Ben Laurel describes t...

The noise we make

This episode explores the rising impact of anthropogenic – or human caused – sound in the ocean. Experts in underwater noise are interviewed about how increasing noise...

Speaking with the fishes

In this episode we ask: What sound does a fish make? It turns out the answer is a long and diverse list of sounds that includes the grunt of an Arctic cod. We talk to ...

The Arctic Cod Grunt

This episode follows marine biologist Amalis Riera through the process of discovering a faint but critical sound: the grunt of an Arctic cod. Riera explains how she di...

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