Fish of the Week!

Meet the Wolf Eel: an extraordinary fish with a face resembling that of an old man. An aquarist, museum curator, and diver bring their perspectives about this monogamous (mostly), snaggletoothed ocean-dweller.

Meet the Muskellunge, a so-called " green railroad tie with fins" that might inspire you to cast a ridiculously huge lure ten thousand times. Jordan Weeks from the Wisconsin DNR and Brian Herwig from Minnesota DNR bring their midwestern perspectives about musky size, genetics, behavior and more!  

We’d like to welcome you to the Pacific Remote Islands Marine National Monument and introduce you to an enormous coral reef fish: the Humphead (AKA Napoleon/ Māori ) Wrasse! Dr. Amanda Pollock helps bring to the surface the story of these fascinating fish that change sex throughout their lives and the amazing places they call home.

Award-winning author Mark Kurlansky joins Katrina and Guy to celebrate the Atlantic Cod, a "down to earth" fish that once reached sizes rivaling the men who braved dangerous seas to catch them. From blessing the Vikings with strong bones to influencing the settlement patterns of New England and more, this fish has a storied past and future yet to be written. We hope you enjoy!

Get to know the largest freshwater scaled fish with a face that looks like a topographical map of Mars: the Arapaima. Wait, there's more! Their swim bladder has lung-like tissue and they excrete a milk-like substance from their head. An ichthyologist who works at the Field Museum in conservation science, Dr. Lesley de Souza, takes us to the Amazon and Essequibo basins in South America to learn fro...

Get to know Puerto Rico’s migratory and waterfall-climbing Sicydium gobies! These amphidromous fishes are an essential part of Caribbean streams and artisanal fisheries. They also have a built-in suction cup! Guest Augustin Engman brings his perspectives about this special place and its native fishes.

From its vermiculated dorsum all the way to its vermillion ventrum, the Brook Trout is a most charming fish! Guests Emily Hill and Tom Hoffman are here to help us appreciate and conserve one of nature's most amazing piscine color palettes.

For one week and one week only Katrina and Guy discuss some of their recent best fishing adventures and what they learned. Come along as they continue their quest to get to know ALL THE FISH!

Like dinosaurs? Aerial acrobats? Sensitive barbeled snoots? Get to know the Atlantic Sturgeon with special guests Albert Spells and Steve Minkkinen. This humongous Endangered fish has an incredible story to tell.

If you're into an intimate, small stream "mini golf style fishing experience" with gothic vibes, you'll want to make time for the hogsuckers! The oxblood-colored lip liner and the sunlight glinting off their sparkly scales are unforgettable. Get to know the Northern, Alabama, and Roanoke species with native fish enthusiast Corey Geving.

Meet the Endangered Candy Darter, one sweet Appalachian fish we'd like to see more of! Guests Andrew Phipps from our White Sulphur Springs National Fish Hatchery and Nate Owens from the West Virginia Division of Natural Resources bring two complimentary perspectives about this fish, why it's special, and how to help.

Arctic Youth Ambassador Mackenzie Englishoe from Gwichyaa Zhee (Fort Yukon, Alaska) brings her Gwichya Gwich’in perspective about Yukon River Chinook Salmon, fish camp, loss, and the future.

Hated by some, revered by others, get to know a fish with a rich history. From Heather the Leather to Christmas traditions, one thing is for certain...this fish is interesting! Katrina and Guy deep dive into a discussion about the Dog of Fish: the Common Carp!

Learn about a flat place where herds of bison and elk once grazed and a gorgeous little endangered fish is now being squeezed between a rock and a hard place. Bernie Kuhajda from the Tennessee Aquarium and Warren Stiles from our Tennessee Ecological Services Field Office are guests.

If you're feeling old and slow today, the Greenland Shark has you beat! In addition to being the largest Arctic fish and one of the slowest swimming sharks, they are THE LONGEST LIVING VERTEBRATE and can live for hundreds of years!! PhD student Eric Ste-Marie from the University of Windsor's Hussey Lab studies the behavior and physiology of these sharks in the Canadian Arctic and is our guest. Mor...

Meet a miniaturized group of brightly-colored fishes (jet black and electric blue anyone??) with a wiggle-waggle dance and love for tea-colored blackwaters, springs, and submerged aquatic vegetation. Find all seven species in the Southeastern U.S., including the Spring Pygmy Sunfish (a threatened Alabama endemic). Guests Mike Sandel and David Pounders join from Mississippi State University to spil...

Minnesota guests and fish enthusiasts Eric Kolcinski and Tony Schollmeier bring their angling perspectives and enthusiasm for the uniquely shiny-eyed Mooneye and Goldeye. Flash of silver and next thing you know you're entering piscine portal into a different galaxy and eye to eye with an alien-looking fish!

Maxing out at around 800 pounds and eight feet long, the weight of this fish is comparable to an adult grizzly bear, American bison, or grand piano...and similarly long items include a king-sized bed and surfboard! Fish biologist Derek Cox from the Florida Fish and Wildlife Conservation Commission joins as a guest to help shed light on the true habits of this amazing fish, as well as its complex h...

Buckle up for a trip down into the Mariana Trench to discover an amazing fish living miles beneath the surface! Learn the brilliant ways these fish survive, how scientists study these depths, and get to know the Marianas Trench Marine National Monument and the people who call it their backyard. Deep sea scientist Alan Jamieson and park ranger Jihan Younis are guests.

If you cavity search a river or reservoir, you might meet the business end of a Flathead Catfish! In this episode, we share our favorite anatomical features and what it's like to have your hand in the mouth of this fish (ouch!). Learn what other other critters you might encounter while noodling for these cavity dwellers and how to prevent your gear from going rogue and "ghost" fishing (boo!). Fish...

Big head, broad shoulders, red emerging from deep blue. Greg Stunz (AKA Dr. Snapper) joins Katrina and Guy to chat about a beautiful, tasty, and cooperative fish: the Red Snapper! Learn a little bit of everything about this fish from its biology to management and the Great Red Snapper Count.

A sunny fish with a pan-shaped profile, the Bluegill is an excellent "gateway" fish into fishing! Their widespread abundance and ease of being fooled makes this tasty fish a great target for fishing newbs. They're also fantastically fun on the fly or with ultralight gear for the more experienced angler. Guest Alex McCrickard from the Virginia  Department of Wildlife Resources  and Sam St...

Take a step back in time and imagine the possibility of casting a bird or rabbit into the Ovaltine-colored water of the Colorado River and reeling in a six foot long toothless, predatory fish with Mick Jagger lips: the now-Endangered Colorado Pikeminnow. We walk through history and into the present day challenges facing recovery of North America's largest Cyprinid with guests Eliza Gilbert and Dal...

Dive in with the world's largest freshwater fishes on a special "megafish" episode. Our guest is Zeb Hogan: big fish enthusiast, researcher, author, host of National Geographic's Monster Fish, and director of Wonders of the Mekong Project. From American Paddlefish to Mekong Giant Catfish, we cover the array of freshwater fishes that reach lengths over six feet or weigh more than 200 pounds.

Is it a fish? A lure? Why is it attached to that freshwater mussel?? There's something fishy about the Unionid mussel family, and we're going to help you "flex" into the idea that these seemingly simple bivalves can dupe fish into babysitting! Our guest is mussel biologist Sara Seagraves from Mammoth Spring National Fish Hatchery in Arkansas. You'll take away mussel names like "snuffbox" and "monk...