Time and Tide is a New Hampshire Sea Grant podcast for anyone who is connected to the Granite State’s waterways and wants to learn more about the latest science impacting both yourself, and the animals that live here. Hosts Erik Chapman and Brian Yurasits break down complex topics from seafood to coastal resilience by bringing on guests from both the research world, and local industries to share their expertise and perspectives.
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Shoring Up the Market: Realtors and Scientists Team Up on Coastal Resilience
Épisode 4
vendredi 27 juin 2025 • Durée 40:54
A new workshop called Living With Water is designed to help realtors navigate these turbulent times, by equipping them with resources on flood risks in New Hampshire.
Show notes:
The housing market is a hot topic in the Granite State and across the US, to say the least. A part of this conversation relates to how insurance companies are dropping coverage for homeowners due to the increased risk of natural disasters. In New Hampshire, flooding risks are of particular concern, from the White Mountains to the Gulf of Maine. A new workshop called Living With Water is designed to help realtors navigate these turbulent times, by equipping them with resources on flood risks in New Hampshire. Learn from the workshop's creators about how realtors can navigate flood risk with their clients, and why conversations during the home buying and selling experience are a great time to talk about stewarding the future of our natural spaces.
Act 1: Turning ideas into reality with Lisa Wise and Lynn Vaccaro, both members of the New Hampshire Coastal Adaptation Workgroup. When realtors in the seacoast community identified the need to learn more about flood risks, this dynamic duo stepped up to the challenge.
Act 2: Talia Sperduto shares her personal journey from sustainability to real estate, and why flooding has become an everyday concern in her work.
Guest Speakers:
Lisa Wise, Coastal Resilience Extension Specialist, New Hampshire Sea Grant and UNH Extension
Lynn Vaccaro, Coastal Training Program Coordinator, Great Bay National Estuarine Research Reserve and NH Fish and Game
Talia Sperduto, owner of Whole Heart Homes, real estate professional specializing in coastal and historic home sales in the communities of greater Portsmouth, NH and Kittery, ME. Member of the Seacoast Board of Realtors.
Hosted by: Brian Yurasits, Science Communication Specialist, New Hampshire Sea Grant.
Co-Hosted by: Erik Chapman, Director, New Hampshire Sea Grant.
New Hampshire Sea Grant works to enhance our relationship with the coastal environment to sustain healthy and resilient ecosystems, economies, and communities through integrated research, extension, education, and communications efforts. Based at the University of New Hampshire, New Hampshire Sea Grant is one of 34 programs in the National Oceanic and Atmospheric Administration’s National Sea Grant College Program, a state-federal partnership serving America’s coasts. Learn more by visiting: seagrant.unh.edu
A Shoal Lot of History: Salty Stories from the Isles of Shoals
Épisode 5
vendredi 27 juin 2025 • Durée 45:24
Just six miles off New Hampshire’s coast, the Isles of Shoals emerge from the sea—a world apart, shaped by nature, time, and human hands. Historian Ann Beattie helps us imagine what these isolated New England isles may have looked like through the years.
Show notes:
Just six miles off New Hampshire’s coast, the Isles of Shoals emerge from the sea—a world apart, shaped by nature, time, and human hands. With a history as rugged and remarkable as the rocky shoreline at your feet, these islands have left a surprisingly global mark.
In this episode, local historian and storyteller Ann Beattie helps us imagine what these isolated New England isles may have looked like through the years. How has time transformed the Isles of Shoals? And what lessons from the past still ripple through today?
Beyond ghost stories and pirate legends, the Isles offer insights into the evolution of fishing, the history of cod, and development of coastal economies—topics still vital to our region today.
Curious to see it for yourself? You can visit Appledore Island this summer on a public boat tour with the UNH Marine Docents.
Guest Speaker:
Ann Beattie, Isles of Shoals Historian
Hosted by: Brian Yurasits, Science Communication Specialist, New Hampshire Sea Grant.
Co-Hosted by: Erik Chapman, Director, New Hampshire Sea Grant.
A preliminary study by Dr. Paula Mouser and her team of researchers and citizen scientists in New Hampshire has found that foam on the surface of water can contain elevated levels of PFAS contamination, compared to the surface water below.
Show notes:
PFAS are contaminants of emerging concern and have rapidly become a focal point for everyone working in the field of clean water. These ‘forever chemicals’ are impactful in very small amounts (parts per trillion), have negative impacts on humans, and are present within a wide variety of consumer products.
Because PFAS are odorless, tasteless, and microscopic, it is difficult for people to visualize this threat to human health. However, residents in New Hampshire have recently expressed concern that surface foams forming in known PFAS-contaminated water bodies may contain elevated levels of these ‘forever chemicals’. This prompted a team from University of New Hampshire, Temple University, and local citizens to join together in testing foam from these locations. Here, we discuss their preliminary findings, and what will come next.
Act 1: Dr. Paula Mouser describes the story behind exploring PFAS concentrations in surface foam at sites known for their PFAS exposure.
Act 2: Gabby Deangelis, a Master’s student at UNH, shares her personal experience being affected by PFAS, and her creativity in developing methods to sample surface foams. Gabby also shares her experiences as a graduate student working in the field of environmental science.
Act 3: Andrea Amico discusses her family’s exposure to PFAS, and how this sparked her journey to raise awareness and take action to address this contaminant in our waters. Andrea describes her work as a citizen scientist with Paula’s team while explaining the impact of including community members in research.
Guest Speakers:
Paula Mouser, Ph.D. Professor, Civil and Environmental Engineering, University of New Hampshire
Gabby Deangelis, Graduate Student in Environmental Engineering, University of New Hampshire
The Secret Lives of Lumpfish
Épisode 2
vendredi 27 juin 2025 • Durée 33:36
They’re round, suction-cupped, and as it turns out, full of secrets. Lumpfish (Cyclopterus lumpus) may not be glamorous, but these quirky creatures are doing serious work beneath the waves in the Gulf of Maine.
Show notes:
They’re round, suction-cupped, and as it turns out, full of secrets. Lumpfish (Cyclopterus lumpus) may not be glamorous, but these quirky creatures are doing serious work beneath the waves in the Gulf of Maine.
In this episode, we learn how lumpfish are becoming unlikely heroes in salmonid aquaculture. Acting as ladybugs of the sea, they help control parasitic sea lice in salmon and trout farms—a natural solution to a major problem. But what do we know about the lumpfish themselves, and what happens when we rely on wild species to fix our finfish-farming challenges?
Act One: Elizabeth Fairchild describes her latest Sea Grant-funded study on lumpfish at the University of New Hampshire. The study seeks to shed light on the mysterious lives of lumpfish in the rapidly changing Gulf of Maine, and their potential for use as ‘cleaner fish’ in salmonid aquaculture operations.
Act Two: Aravis Albert and Sam Rutka from the Seacoast Science Center explain how lumpfish can help us tell the story of a changing Gulf of Maine, and where curious coastal visitors can look to find these charismatic fish.
Guest Speakers:
Elizabeth Fairchild, Ph.D. Research Associate Professor, Biological Sciences, University of New Hampshire
Sam Rutka, Lead Aquarist, Seacoast Science Center
Aravis Albert, Aquarist I and Naturalist, Seacoast Science Center
Hosted by: Brian Yurasits, Science Communication Specialist, New Hampshire Sea Grant.
Co-hosted by: Erik Chapman, Director, New Hampshire Sea Grant.
Introducing Time and Tide: A Podcast By New Hampshire Sea Grant
Épisode 1
vendredi 27 juin 2025 • Durée 10:19
Time and Tide is a new podcast from New Hampshire Sea Grant, based at the University of New Hampshire, that explores the science, stories, and people behind our changing coastlines.
Show notes:
What does the saying – time and tide wait for none – mean to you? Those with a connection to the coast understand that tides are a certainty in life; they are something that we have no control over, just as time is always fleeting. It’s a familiarity that connects all of us, and sometimes, is a starting point for conversation. Time and Tide is a new podcast from New Hampshire Sea Grant exploring the science, stories, and people behind our changing coastlines.
Hosts Brian Yurasits and Erik Chapman share one story each month, covering the coastal and marine topics that you might read about in your local news. These stories are told by both researchers and community members in a way that anyone can relate to. Whether you’re a surfer, fisher, seafood lover, enjoy long walks on the beach, or simply someone who cares about the future of our coastal places—this podcast is for you.
In this introduction, you'll hear why talking about the tides is a great ice-breaker, learn why you should care about the issues facing the Granite State’s small, but mighty coastline, and take a trip down memory lane with Brian and Erik. Float along with us as we navigate these tides of change together.
Hosted by: Brian Yurasits, Science Communication Specialist, New Hampshire Sea Grant.
Co-hosted by: Erik Chapman, Director, New Hampshire Sea Grant.
Produced by: Brian Yurasits with assistance from Talia Katreczko, New Hampshire Sea Grant Doyle Fellow.
New Hampshire Sea Grant works to enhance our relationship with the coastal environment to sustain healthy and resilient ecosystems, economies, and communities through integrated research, extension, education, and communications efforts. Based at the University of New Hampshire, New Hampshire Sea Grant is one of 34 programs in the National Oceanic and Atmospheric Administration’s National Sea Grant College Program, a state-federal partnership serving America’s coasts. Learn more by visiting:
If You Can’t Beat ‘Em, Eat ‘Em! Invasive Green Crabs Are Coming to a Menu Near You
Épisode 6
vendredi 1 août 2025 • Durée 46:22
Summary:
Two centuries ago, European Green Crabs arrived in New England’s coastal waters and quickly became one of the world’s most notorious marine invaders — outcompeting native species, devouring shellfish, and threatening local fisheries. In this episode of Time and Tide, we explore how scientists, fishers, chefs, and local volunteers are countering this invasive species by turning an ecological problem into an unexpected and delicious resource.
Show notes:
Two centuries ago, a tiny stowaway arrived in New England’s coastal waters: the European Green Crab (Carcinus maenas). Since the early 1800s, this unassuming invader has spread from the Mid-Atlantic to Canada’s Prince Edward Island, causing significant ecological damage and economic headaches along the way.
In this episode of Time and Tide, we dive into how green crabs became one of the world’s most notorious marine invaders — outcompeting native species, devouring shellfish, clipping seagrasses, and threatening local fisheries. But what if we could counter this invasive species by putting them on our plates — and even in our glasses?
Join host Brian Yurasits and co-host Erik Chapman as they explore how scientists, fishers, chefs, and local volunteers are turning this problem into an unexpected and delicious resource.
In Act 1, Dr. Gabriela Bradt, fisheries specialist with NH Sea Grant and UNH Extension and leader of the NH Green Crab Project, crabwalks us through the green crab takeover of U.S. coastlines, and why soft-shell green crabs could be New England’s next sustainable food craze if the idea catches on.
In Act 2, Mary Parks, Founder and Executive Director of GreenCrab.org, explains how this crustacean menace is finding its way onto restaurant menus — through the creativity of chefs and harvesters working to open new markets.
Tune in to learn how we might just be able to eat (and drink) our way to a healthier ocean.
Charting a Career in Marine Science, Policy and Education
Épisode 10
lundi 1 décembre 2025 • Durée 46:57
For those who can’t imagine a day without the smell of salt air, the rumble of waves, or the chatter of gulls overhead, a coastal career feels like a natural calling. But knowing you belong near the ocean isn’t the same as knowing where you fit within it—and the world of marine careers is far more diverse than many people realize.
In this episode of Time and Tide, we dive into the many paths available in marine science, policy, and education. Whether you’re a student just starting to explore your options or a professional looking to pivot into coastal work, we offer practical guidance for navigating the opportunities along New Hampshire’s small—but mighty—stretch of coastline. We also highlight the training programs and graduate pathways within the Granite State that can launch careers nationwide.
Act 1: We speak with Lindsey Williams, New Hampshire Sea Grant's very own workforce development expert, who helps us give career advice to four imaginary students facing very real decisions. From hands-on science roles to community-focused education jobs, Lindsey helps untangle what matters most when choosing a coastal career path.
Act 2: Next, we head to Washington, D.C., for a conversation with Ana Silverio and Elizabeth “Lizzy” Martin, two current Knauss Marine Policy Fellows. Ana and Lizzy share what it’s like to transition from fieldwork to grant-making and policy roles, offer insight into working across political divides, and reflect on the value of sitting down for a “coffee chat” with colleagues.
Full episode transcript is available below.
Guest Speakers:
Lindsey Williams, Ph.D., Associate Director & Assistant Director for Workforce Development, New Hampshire Sea Grant
Ana Silverio, Knauss Marine Policy Fellow, New Hampshire Sea Grant
Lizzy Martin, Knauss Marine Policy Fellow, New Hampshire Sea Grant
Hosted by: Brian Yurasits, Science Communication Specialist, New Hampshire Sea Grant
Root for Eelgrass: Restoring Coastal Nurseries
Épisode 9
samedi 1 novembre 2025 • Durée 42:41
Show notes:
Beneath the thin blue line of the ocean’s surface lies an underwater meadow of grass. In Great Bay and coastal New Hampshire, these flowing fields of green are nurseries for young fish, an anchor for sediments, and a sign that our ecosystems are healthy. However, these life-supporting aquatic pastures face new threats. Here, in the constantly moving waters where rivers meet the sea, scientists, students, and communities are working together to bring back one of New Hampshire’s most vital—but also fragile—coastal habitats: eelgrass.
These underwater meadows once stretched far and wide across the bay, but recently, storms, changing water temperatures, and pollution are having an impact on our local eelgrass species, Zostera marina.
A new restoration project—backed by local towns, oyster farmers, and researchers at the University of New Hampshire—is testing innovative ways to help these plants return and thrive. From transplanting shoots to exploring seed-based restoration, the work happening here could shape the future of eelgrass recovery across the country.
Act 1: What’s slender like an eel, and requires clear, cold water to thrive? Explore eelgrass 101 with Trevor Mattera, Habitat Program Manager with the Piscataqua Region Estuaries Partnership (PREP), as he takes us through the past, present, and future of Zostera marina in New Hampshire waters.
Act 2: Strap on your snorkel and float through an eelgrass meadow with Matthew Allen, New Hampshire Sea Grant’s Undergraduate Doyle Fellow, who spent this past summer spending as much time as humanly possible in a wetsuit, assisting Trevor and the team at PREP with their Great Bay Estuary Oyster & Eelgrass Restoration project. Experience a day in the life working to restore eelgrass and hear a harrowing story about mating horseshoe crabs.
Act 3: You can’t have thriving eelgrass without clean water. Gretchen Young, the Deputy Director of Technical Services at the City of Rochester, New Hampshire, explains how this restoration project came to be funded, and why municipalities are joining forces to address nitrogen pollution in Great Bay.
Dune it Right: Planting the Seeds of Coastal Resilience
Épisode 8
mercredi 1 octobre 2025 • Durée 31:49
New Hampshire’s coastal dunes are a natural shield—absorbing storm surges, protecting coastal communities, and providing critical habitat for wildlife. Dunes are highly dynamic systems and are no stranger to change, however these habitats face new pressures as we develop and ‘harden’ our coastline. Thankfully, researchers, community leaders, and volunteers are working together to plant and restore native dune grass.
Show notes:
New Hampshire’s coastal dunes are a natural shield—absorbing storm surges, protecting coastal communities, and providing critical habitat for wildlife. Dunes are highly dynamic systems and are no stranger to change, however these habitats face new pressures as we develop and ‘harden’ our coastline, in the context of a rapidly changing Gulf of Maine. Thankfully, researchers, community leaders, and volunteers are working together to plant and restore native beachgrass, Ammophila breviligulata.
Act 1: What's the difference between beachgrass and seagrass? How much dune habitat exists in the Granite State's short stretch of coastline? And why aren't our dune habitats thriving as they should be? Alyson Eberhardt, the Coastal Ecosystems Extension Specialist at New Hampshire Sea Grant, helps us answer all of these questions, while telling a story of the Common Garden. Like any good community garden, this space brings people together under a shared purpose.
Act 2: The town of Hampton, New Hampshire sits at the center of this sandy conversation. Intense storms and flooding events have prompted homeowners and beachgoers in this popular beach town to seek solutions. Brianna Hagan, Conservation Coordinator at the Town of Hampton, knows that since we can't control the ocean, that her town has important decisions to make for the future. But sometimes the simplest place to start is with a shovel and a plant.
Act 3: People from all crosswalks of life come together on a cold April morning at Plaice Cove in Hampton, New Hampshire to transform a stretch of coastline. Chris Grippo, Chair of Surfrider Foundation's New Hampshire Chapter, and Patty McKenzie, a local homeowner, take a moment between getting their hands sandy to describe why planting beachgrass gives them hope.
Wings Over Water: Charting the Path to a Bird-Friendly Marine Economy
Épisode 7
lundi 1 septembre 2025 • Durée 46:40
What happens when the growing marine economy meets efforts to protect threatened and endangered seabirds? Elizabeth Craig and her team are mapping the journeys of common and roseate terns (Sterna hirundo and Sterna dougallii) to ensure both conservation efforts and development can move forward together in the Gulf of Maine. Join us in the bird blind on this episode of Time and Tide as we uncover how seabird researchers are able to track the movements and feeding behaviors of terns in the Gulf of Maine, and why these movements matter to us.
Act 1: Step onto White and Seavey Islands with Elizabeth Craig, Director of Seabird Science at Shoals Marine Laboratory, as she describes the threats faced by common and roseate terns in a changing Gulf of Maine, and why we as humans should care about the fate of these agile birds that spend their lives at sea. We dodge dive-bombing birds, and side-step freshly hatched chicks while discussing the importance of data-driven conservation efforts and her team's latest Sea Grant-funded research. We also address hard-hitting questions such as: why do seabird researchers wear wide-brimmed hats? And what is seabird poop bingo?
Act 2: We join Caitlin Panicker, an undergraduate student at Bowdoin College, in the bird blind to learn what it's like to live on the Isles of Shoals for a summer, watching the same birds fly in and out of a nesting colony. Caitlin explains what a tern 'neighborhood' looks like and shares some advice for college students looking to gain field experience.
Act 3: So, where does all of this information go, and how does it impact us non-birds? We sat down with Katy Bland, a Research and Engagement Manager working with Sea Grant and NERACOOS, to talk through the uses of Elizabeth's tern research with us. Katy focuses on the interaction between coastal communities and offshore renewable energy development in the Gulf of Maine. Making her the perfect guest to help us understand how Liz’s seabird research can be used to inform decisions about how we use our ocean.
Guest Speakers:
Dr. Elizabeth Craig, Director of Seabird Science, Shoals Marine Laboratory Affiliate Faculty, Department of Biological Sciences, UNH.
New Hampshire Sea Grant works to enhance our relationship with the coastal environment to sustain healthy and resilient ecosystems, economies, and communities through integrated research, extension, education, and communications efforts. Based at the University of New Hampshire, New Hampshire Sea Grant is one of 34 programs in the National Oceanic and Atmospheric Administration’s National Sea Grant College Program, a state-federal partnership serving America’s coasts. Learn more by visiting: seagrant.unh.edu
New Hampshire Sea Grant works to enhance our relationship with the coastal environment to sustain healthy and resilient ecosystems, economies, and communities through integrated research, extension, education, and communications efforts. Based at the University of New Hampshire, New Hampshire Sea Grant is one of 34 programs in the National Oceanic and Atmospheric Administration’s National Sea Grant College Program, a state-federal partnership serving America’s coasts. Learn more by visiting: seagrant.unh.edu
New Hampshire Sea Grant works to enhance our relationship with the coastal environment to sustain healthy and resilient ecosystems, economies, and communities through integrated research, extension, education, and communications efforts. Based at the University of New Hampshire, New Hampshire Sea Grant is one of 34 programs in the National Oceanic and Atmospheric Administration’s National Sea Grant College Program, a state-federal partnership serving America’s coasts. Learn more by visiting: seagrant.unh.edu
New Hampshire Sea Grant works to enhance our relationship with the coastal environment to sustain healthy and resilient ecosystems, economies, and communities through integrated research, extension, education, and communications efforts. Based at the University of New Hampshire, New Hampshire Sea Grant is one of 34 programs in the National Oceanic and Atmospheric Administration’s National Sea Grant College Program, a state-federal partnership serving America’s coasts. Learn more by visiting: seagrant.unh.edu
New Hampshire Sea Grant works to enhance our relationship with the coastal environment to sustain healthy and resilient ecosystems, economies, and communities through integrated research, extension, education, and communications efforts. Based at the University of New Hampshire, New Hampshire Sea Grant is one of 34 programs in the National Oceanic and Atmospheric Administration’s National Sea Grant College Program, a state-federal partnership serving America’s coasts. Learn more by visiting: seagrant.unh.edu
New Hampshire Sea Grant works to enhance our relationship with the coastal environment to sustain healthy and resilient ecosystems, economies, and communities through integrated research, extension, education, and communications efforts. Based at the University of New Hampshire, New Hampshire Sea Grant is one of 34 programs in the National Oceanic and Atmospheric Administration’s National Sea Grant College Program, a state-federal partnership serving America’s coasts. Learn more by visiting: seagrant.unh.edu
The Piscataqua Region Estuaries Partnership (PREP) is a collaboration-driven, local organization and National Estuary Program. Through community collaboration with NH and Southern ME Towns, researchers, and local organizations, they work to monitor, restore, and protect the health of the lakes, rivers, streams, and the Great Bay and Hampton-Seabrook estuaries in the Piscataqua Region Watershed.
The University of New Hampshire Cooperative Extension is an equal opportunity educator and employer. UNH, U.S. Dept. of Agriculture, and New Hampshire counties cooperating. Direct inquiries to unh.civilrights@unh.edu.
Guest Speakers:
Alyson Eberhardt, Ph.D., Coastal Ecosystems Extension Specialist, New Hampshire Sea Grant
Brianna Hagan, Conservation Coordinator at the Town of Hampton
Chris Grippo, Chair of the Surfrider Foundation New Hampshire Chapter
Patty McKenzie, Resident of Hampton, New Hampshire
Hosted by: Brian Yurasits, Science Communication Specialist, New Hampshire Sea Grant
New Hampshire Sea Grant works to enhance our relationship with the coastal environment to sustain healthy and resilient ecosystems, economies, and communities through integrated research, extension, education, and communications efforts. Based at the University of New Hampshire, New Hampshire Sea Grant is one of 34 programs in the National Oceanic and Atmospheric Administration’s National Sea Grant College Program, a state-federal partnership serving America’s coasts. Learn more by visiting: seagrant.unh.edu
New Hampshire Sea Grant works to enhance our relationship with the coastal environment to sustain healthy and resilient ecosystems, economies, and communities through integrated research, extension, education, and communications efforts. Based at the University of New Hampshire, New Hampshire Sea Grant is one of 34 programs in the National Oceanic and Atmospheric Administration’s National Sea Grant College Program, a state-federal partnership serving America’s coasts. Learn more by visiting: seagrant.unh.edu
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