What does it all mean?

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The CODCAST

Shaye Ogurek

4 episodes

5 months ago

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.

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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.

Show more...

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What does it all mean?

The CODCAST

20 minutes

5 months ago

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 the delicate mission of getting Arctic cod from the Arctic Ocean to the tanks in Oregan and explains what the team has found out so far about Artic cod sound production. We wrap-up by looking at future directions and what the team still has left to uncover.

The Codcast is produced by John William Last, in association with the Juanes Lab at the University of Victoria.

Episode Highlights:
- How we collected Arctic cod to study from the Arctic
- The preliminary results from the Arctic cod recordings so far
- What the Arctic cod research team will do next?

Researchers Interviewed:

Rodney Roundtree: Rodney Rountree, A.K.A. The Fish Listener. I have been a pioneer in passive acoustics for almost 3 decades and have maintained a (web page on fish ecology since 1998 www.fishecology.org) including a library of fish sounds and a children’s book. I have conduced research in the deep-sea, Amazon jungle, coastal estuaries, and many freshwater habitats. I received my Ph.D. from Rutgers University in 1992, and am now retired, but continue passive acoustic research in many areas.

Ben Laurel: Dr. Ben Laurel is a Research Fish Biologist at the NOAA Alaska Fisheries Science Center laboratory at the Hatfield Marine Science Center in Newport, OR. Ben's research focuses on the biology and habitat requirements of early life stages of fish, specializing on cod species in both the Pacific and Atlantic. He has 20 years experience bridging the gap between experimental, field and modeling approaches at his current position at NOAA. (Ben Laurel, NOAA Sciences https://www.fisheries.noaa.gov/contact/ben-laurel)

Kelsie Murchy: Kelsie Murchy is a postdoctoral researcher at the University of Victoria, British Columbia, Canada, with a focus on underwater sounds, their contribution to the marine soundscape, and impacts on key marine species. Kelsie’s current research examines Arctic fish sounds to understand fish movement patterns within a changing climate. Kelsie finished her Master's degree at the University of Minnesota in 2016 and her Ph.D. from the University of Victoria in 2024. (Kelsie Murchy LinkedIn https://ca.linkedin.com/in/kelsie-murchy-074aa4a1)

Amalis Riera: Amalis is a Biologist from Spain who came to Victoria (BC) to do an MSc. in killer whale acoustics, which led to the expansion of the Endangered Southern Residents critical habitat. She studied cetacean occurrence around Vancouver Island with DFO, and then returned to UVic to study fish sounds. She described for the first time the sounds of Arctic cod, sablefish, and walleye pollock, and worked with an amazing team to create the FishSounds.net website. Her latest research revolved around the Arctic marine ecosystem, and included the acoustic detection of marine mammals and Arctic gadids. She has been working in management of BC freshwater invasive fauna since 2023 with the BC Ministry of Water, Land and Resource Stewardship. (Amalis Riera LinkedIn https://ca.linkedin.com/in/amalisr)

Additional resources:

Explore the (Hatfield Marine Science Center https://hmsc.oregonstate.edu/), where the Arctic cod involved in this project live

Learn more about (the Deep Voice Foundation https://www.deepvoicefoundation.com/) and AI-based passive acoustic monitoring

The production of this podcast is an outreach initiative part of the core (NPRB funded research project 2103: Passive Acoustic Monitoring of Arctic cod (Boreogadus saida): seasonality and demography of their sound production https://nprb.org/project-search/#metadata/d97512b8-c9ef-4751-bb14-477697dd9426/project)

Learn more about (John William Last https://www.linkedin.com/in/john-william-last-30aab034/?originalSubdomain=it), the producer of the Codcast