339 - Natural Chemical Tracers and Applications in Fisheries with Dr. John Mohan

This week Alanna chats with Dr. John Mohan, a Conservation Biologist in Protected Resources at the North Carolina Division of Marine Fisheries, about his work using chemical tracers such as trace elements and isotopes in fisheries science. The two chemistry fans talk about applications in species such as striped bass, Atlantic croakers, Pacific bluefin tuna, and a variety of sharks. John provides a crash course in chemical tracers for those interested in using these tools, and gives excellent advice for scientists of all stages.   Main point: "Go with the flow"   Find John through instagram @phdude_fishecology and email at [email protected]   Get in touch with us! The Fisheries Podcast is on Facebook, X, Instagram, Threads, and Bluesky: @FisheriesPod  Become a Patron of the show: https://www.patreon.com/FisheriesPodcast Buy podcast shirts, hoodies, stickers, and more: https://teespring.com/stores/the-fisheries-podcast-fan-shop Thanks as always to Andrew Gialanella for the fantastic intro/outro music. The Fisheries Podcast is a completely independent podcast, not affiliated with a larger organization or entity. Reference to any specific product or entity does not constitute an endorsement or recommendation by the podcast. The views expressed by guests are their own and their appearance on the program does not imply an endorsement of them or any entity they represent. Views and opinions expressed by the hosts are those of that individual and do not necessarily reflect the view of any entity with those individuals are affiliated in other capacities (such as employers).

This week, a busy 2025, a lack of sleep, and possible procrastination result in Preston having to do a solo episode. He provides updates on his career journey since he was last on the show as a guest in late 2023. He then opens up about some of the personal challenges going on at home and he wraps up by giving out some of his top book recommendations in several science-y categories.    Main point: "Never hesitate to reach out for help." Preston's Instagram: @hokie_fish_biologist   Get in touch with us! The Fisheries Podcast is on Facebook, Twitter, Instagram, Threads, and Bluesky: @FisheriesPod  Become a Patron of the show: https://www.patreon.com/FisheriesPodcast Buy podcast shirts, hoodies, stickers, and more: https://teespring.com/stores/the-fisheries-podcast-fan-shop Thanks as always to Andrew Gialanella for the fantastic intro/outro music. The Fisheries Podcast is a completely independent podcast, not affiliated with a larger organization or entity. Reference to any specific product or entity does not constitute an endorsement or recommendation by the podcast. The views expressed by guests are their own and their appearance on the program does not imply an endorsement of them or any entity they represent. Views and opinions expressed by the hosts are those of that individual and do not necessarily reflect the view of any entity with those individuals are affiliated in other capacities (such as employers).

This week, Elise (IG: @elisemobranchii) hosts Dr. David Shiffman (@whysharksmatter), an interdisciplinary ocean conservation scientist whose research focuses on the ecology and conservation of chondrichthyan fishes, to talk about this week's COP20 CITES shark and ray proposals! David is a public science engagement specialist, an award-winning writer and educator, and author of the book “Why Sharks Matter: A Deep Dive with the World's Most Misunderstood Predator”. He currently works as an ocean conservation policy and communications consultant in Washington, DC, but you can also find him on social media @whysharksmatter, where he’s always happy to answer questions about sharks, careers in marine biology, and ocean conservation. Main Point: Learn how to write professional emails! You can learn more about CITES here!: https://news.mongabay.com/2025/11/for-sharks-on-the-brink-of-extinction-cites-appendix-ii-isnt-protective-enough-commentary/ https://therevelator.org/cites-sharks/ Get in touch with us! The Fisheries Podcast is on Facebook, Twitter, and Instagram: @FisheriesPod  Become a Patron of the show: https://www.patreon.com/FisheriesPodcast Buy podcast shirts, hoodies, stickers, and more: https://teespring.com/stores/the-fisheries- podcast-fan-shop Thanks as always to Andrew Gialanella for the fantastic intro/outro music. The Fisheries Podcast is a completely independent podcast, not affiliated with a larger organization or entity. Reference to any specific product or entity does not constitute an endorsement or recommendation by the podcast. The views expressed by guests are their own and their appearance on the program does not imply an endorsement of them or any entity they represent. Views and opinions expressed by the hosts are those of that individual and do not necessarily reflect the view of any entity that those individuals are affiliated in other capacities (such as employers).

Brendan is joined by Dr. Kathryn Peiman to discuss the history of non-native salmonids in the Lake Ontario, and her current work on an opinion piece regarding the stocking of Chinook salmon in the Great Lakes.  Tune in to learn about the history of how long ago these fishes found themselves in Lake Ontario, how many times it's been tried, and the impacts that managing Lake Ontario for these salmonids has had on how we use Lake Ontario.  They cover the impacts of stocking, how Alewife have driven Lake Ontario's species assemblage and biodiversity, and some changes Dr. Peiman thinks would be worth trying out to benefit the Lake as a whole.   You can find Dr. Peiman's Instagram page here - https://www.instagram.com/naturetidbits and her youtube page here - https://www.instagram.com/naturetidbits , please check them out!  Remember to be willing to engage with people that have different opinions than yourself! Make the effort to understand where they're coming from. Get in touch with us! The Fisheries Podcast is on Facebook, Twitter, Instagram, Threads, and Bluesky: @FisheriesPod  Become a Patron of the show: https://www.patreon.com/FisheriesPodcast Buy podcast shirts, hoodies, stickers, and more: https://teespring.com/stores/the-fisheries-podcast-fan-shop Thanks as always to Andrew Gialanella for the fantastic intro/outro music. The Fisheries Podcast is a completely independent podcast, not affiliated with a larger organization or entity. Reference to any specific product or entity does not constitute an endorsement or recommendation by the podcast. The views expressed by guests are their own and their appearance on the program does not imply an endorsement of them or any entity they represent. Views and opinions expressed by the hosts are those of that individual and do not necessarily reflect the view of any entity with those individuals are affiliated in other capacities (such as employers).

This week's episode showcases the result of when two dedicated fisheries biologists and passionate anglers come together to record a podcast. Conrad had the absolute pleasure of interviewing Erin Wilson, an avid multispecies angler and fisheries biologist. Erin has leveraged her passion and skills in her career, discussing how instrumental being an angler has been for her success in the fisheries world. She shared insights from her remarkable master's studies, highlighting her first chapter on muskie movement ecology, and the second chapter focused on the use of biologgers. Additionally, she touched on the power of communication and the valuable lessons learned from engaging with expert knowledge holders in her field. Erin also emphasized the significance of current technologies and her concerns in the fishing world as we move forward. We hope you learn just as much from this conversation as Conrad did this week. Takeaway: Follow what you want to do in life, what you're good at, and what you're passionate about, and don't let anyone deter you along the way.    #muskie #muskellung #acoustictelemetry #movementecology #fisheriesbiology #biologgers #muskiefishing #sciencecommunication “Get in touch with us! The Fisheries Podcast is on Facebook, X, Instagram, Threads, and Bluesky: @FisheriesPod  Become a Patron of the show: https://www.patreon.com/FisheriesPodcast Buy podcast shirts, hoodies, stickers, and more: https://teespring.com/stores/the-fisheries-podcast-fan-shop Thanks as always to Andrew Gialanella for the fantastic intro/outro music. The Fisheries Podcast is a completely independent podcast, not affiliated with a larger organization or entity. Reference to any specific product or entity does not constitute an endorsement or recommendation by the podcast. The views expressed by guests are their own and their appearance on the program does not imply an endorsement of them or any entity they represent. Views and opinions expressed by the hosts are those of that individual and do not necessarily reflect the view of any entity with those individuals are affiliated in other capacities (such as employers).”

This week Alanna interviews PhD candidate Ali Frey. Ali obtained her Bachelor's degree at the University of Rhode Island where she researched little skates and ichthyoplankton before working at the NOAA National Marine Fisheries Service Northeast Fisheries Science Center. The two discuss Ali's current research into southern New England Atlantic Cod at the University of Massachusetts Dartmouth School for Marine Science and Technology and how she leverages methods like acoustic telemetry to study data-limited stocks within the population.   Main point: "Don't overlook teamwork and collaboration"   Find Ali by email at [email protected] and LinkedIn at Alison Frey.   Get in touch with us! The Fisheries Podcast is on Facebook, X, Instagram, Threads, and Bluesky: @FisheriesPod  Become a Patron of the show: https://www.patreon.com/FisheriesPodcast Buy podcast shirts, hoodies, stickers, and more: https://teespring.com/stores/the-fisheries-podcast-fan-shop Thanks as always to Andrew Gialanella for the fantastic intro/outro music. The Fisheries Podcast is a completely independent podcast, not affiliated with a larger organization or entity. Reference to any specific product or entity does not constitute an endorsement or recommendation by the podcast. The views expressed by guests are their own and their appearance on the program does not imply an endorsement of them or any entity they represent. Views and opinions expressed by the hosts are those of that individual and do not necessarily reflect the view of any entity with those individuals are affiliated in other capacities (such as employers).

This week, Preston sits down with Jeremy Risley and Eric Naas from the Arkansas Game and Fish Commission's Black Bass Program. They highlight many of the important projects that the Black Bass Program conducts and their innovative process to formulate their statewide Reservoir Black Bass Management Plan. They also discuss the immense excitement that is building for the upcoming Legacy Lunker Program. We hope that you enjoy this episode!   Main point: "Your fishing stories are immensely valuable and remember to let voices be heard to build stronger relationships." AGFC Black Bass Program website: https://www.agfc.com/fishing/black-bass/black-bass-program/    Get in touch with us! The Fisheries Podcast is on Facebook, Twitter, Instagram, Threads, and Bluesky: @FisheriesPod  Become a Patron of the show: https://www.patreon.com/FisheriesPodcast Buy podcast shirts, hoodies, stickers, and more: https://teespring.com/stores/the-fisheries-podcast-fan-shop Thanks as always to Andrew Gialanella for the fantastic intro/outro music. The Fisheries Podcast is a completely independent podcast, not affiliated with a larger organization or entity. Reference to any specific product or entity does not constitute an endorsement or recommendation by the podcast. The views expressed by guests are their own and their appearance on the program does not imply an endorsement of them or any entity they represent. Views and opinions expressed by the hosts are those of that individual and do not necessarily reflect the view of any entity with those individuals are affiliated in other capacities (such as employers).

Brendan is joined by Dr. Dave Roon from Oregon State University to discuss his work on modelling the effects of wildfire on fish and aquatic habitats in the Pacific North West. Dr. Roon and his coauthors have been using foodweb models to understand how changing fire disturbance regimes could impact aquatic life with an emphasis on fish.  Tune in to learn how fire can negatively and positively impact fish and their habitats.   You can read their recently published article "Linking Fire, Food Webs, and Fish in Stream Ecosystems", available via Open Access, here! Remember to lead with curiosity!   Get in touch with us! The Fisheries Podcast is on Facebook, Twitter, Instagram, Threads, and Bluesky: @FisheriesPod  Become a Patron of the show: https://www.patreon.com/FisheriesPodcast Buy podcast shirts, hoodies, stickers, and more: https://teespring.com/stores/the-fisheries-podcast-fan-shop Thanks as always to Andrew Gialanella for the fantastic intro/outro music. The Fisheries Podcast is a completely independent podcast, not affiliated with a larger organization or entity. Reference to any specific product or entity does not constitute an endorsement or recommendation by the podcast. The views expressed by guests are their own and their appearance on the program does not imply an endorsement of them or any entity they represent. Views and opinions expressed by the hosts are those of that individual and do not necessarily reflect the view of any entity with those individuals are affiliated in other capacities (such as employers).

This week, Conrad had the pleasure of speaking with Madison Casey, a first-year Master's student at the University of Nebraska-Lincoln in the Learning from Anatomy, Morphology, and Phylogenetics Lab (LAMP). In their conversation, Madison shared the valuable perspectives she gained from her various fisheries jobs before pursuing her Master’s. These experiences were instrumental in shaping her career aspirations. They delved into her research on the reproductive ecology of Silver Carp and Bighead Carp in the Platte River and its major tributaries. Additionally, Madison gave insight into being a woman in the fisheries world and advised on finding a graduate program. We hope you enjoy this week’s episode and share a few laughs along with Madison and Conrad! Takeaways: - Remember where you came from. - A bad day of fishing is still better than a good day in the office.   #Carp “Get in touch with us! The Fisheries Podcast is on Facebook, X, Instagram, Threads, and Bluesky: @FisheriesPod  Become a Patron of the show: https://www.patreon.com/FisheriesPodcast Buy podcast shirts, hoodies, stickers, and more: https://teespring.com/stores/the-fisheries-podcast-fan-shop Thanks as always to Andrew Gialanella for the fantastic intro/outro music. The Fisheries Podcast is a completely independent podcast, not affiliated with a larger organization or entity. Reference to any specific product or entity does not constitute an endorsement or recommendation by the podcast. The views expressed by guests are their own, and their appearance on the program does not imply an endorsement of them or any entity they represent. Views and opinions expressed by the hosts are those of that individual and do not necessarily reflect the view of any entity with those individuals are affiliated in other capacities (such as employers).”  

In this episode Alanna chats with PhD student and plankton specialist Sierra Wachala. Sierra has studied larval shrimp in South Carolina, mysids in Wisconsin, and now lobster larvae in Massachusetts. The two also discuss Sierra's time as a NOAA Hollings Scholar, a research exchange to Alaska, and living and working in the field of marine science with severe allergies. Tune in if you are interested in learning about how rabbits play a critical role in a method for gut content analysis!   Main point: "Larvae matter!"   Find Sierra on Instagram at @sisi_plankton_scientist and by email at [email protected]   Get in touch with us! The Fisheries Podcast is on Facebook, X, Instagram, Threads, and Bluesky: @FisheriesPod  Become a Patron of the show: https://www.patreon.com/FisheriesPodcast Buy podcast shirts, hoodies, stickers, and more: https://teespring.com/stores/the-fisheries-podcast-fan-shop Thanks as always to Andrew Gialanella for the fantastic intro/outro music. The Fisheries Podcast is a completely independent podcast, not affiliated with a larger organization or entity. Reference to any specific product or entity does not constitute an endorsement or recommendation by the podcast. The views expressed by guests are their own and their appearance on the program does not imply an endorsement of them or any entity they represent. Views and opinions expressed by the hosts are those of that individual and do not necessarily reflect the view of any entity with those individuals are affiliated in other capacities (such as employers).