Time and Tide

New Hampshire Sea Grant
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  • NATURAL SCIENCES

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.

  1. Blades of Glory: Landscaping for Water Quality

    6 DAYS AGO

    Blades of Glory: Landscaping for Water Quality

    Spring is in the air. As the days get longer and plants emerge from thawed soil, big landscaping decisions loom ahead. What plants should you add or remove from your yard this year? Are there any big landscaping projects that you’re feeling brave enough to tackle? But for every landscaping decision you make, there is one thing you should consider: clean water.  In this episode of Time and Tide, we’re following the journey of a water droplet to learn how landscaping decisions that you make on your property can affect the health of local water bodies. In this story, that water can either sink slowly into the ground as nature intended or attain a need for speed as it flows across hard, man-made surfaces, picking up contaminants along the way.   Today, we're helping you make Spring landscaping decisions with clean water in mind. We’ll focus on a recent training hosted for landscaping professionals, called Landscaping for Water Quality, and the lessons learned about designing landscapes that are attractive, ecologically functional, and healthy for local water bodies.      In Act 1, we speak with Amy Papineau from UNH Cooperative Extension who explains why blueberry plants are a delicious and sustainable addition to your backyard. We’ll dig into the science behind soil in the Granite State, which is more complex than you’d think, and leave you with the base of plant knowledge to impress any horticulturist.  In Act 2, Julia Peterson from NH Sea Grant digs into why it can be so tough to find science-backed answers in a world of information overload. Cut through the nonsense with us and find the reliable answers you’re looking for, through a little thing called ‘extension’.   Finally, we hear from local landscapers who participated in this year’s Landscaping for Water Quality training. Is there a market for more sustainable landscaping practices, and is it possible to have a beautiful yard that also helps wildlife? Full episode transcript is available below. Guest Speakers:  Amy Papineau, Extension Field Specialist in Landscape and Greenhouse Horticulture, UNH Cooperative Extension Food & Agriculture Program  Julia Peterson, Extension Program Leader, New Hampshire Sea Grant  Daisy Chinburg, Designer, Site Structures Landscape  Patrick Shannon, Miracle Farms Landscaping  Timothy Sicard, Town of Hampton Falls, NH  Hosted by: Brian Yurasits, Science Communication Specialist, New Hampshire Sea Grant  Co-Hosted by: Erik Chapman, Executive Director, New Hampshire Sea Grant  Produced by: Brian Yurasits Further reading:  New Hampshire Homeowner's Guide to Stormwater Management: https://www.des.nh.gov/sites/g/files/ehbemt341/files/documents/2020-01/homeowner-guide-stormwater.pdf Directory of Landscape Professionals Trained in Ecological Landscaping for Water Quality Protection: https://extension.unh.edu/resource/directory-landscape-professionals-trained-ecological-landscaping-water-quality-protection Landscaping for Water Quality 2026: https://extension.unh.edu/event/2026/03/landscaping-water-quality Green Grass and Clear Water: https://seagrant.unh.edu/our-work/water-quality/water-quality-lawn-care-outreach-materials 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  University of New Hampshire is an equal opportunity employer, learn more: https://extension.unh.edu/civil-rights-statement

    40 min
  2. It Takes a Village: Restoring Wild Oyster Reefs in Great Bay

    1 APR

    It Takes a Village: Restoring Wild Oyster Reefs in Great Bay

    A century ago, vast reefs of Eastern Oysters, Crassostrea virginica, stretched across Great Bay cleaning the water, sheltering fish, and forming one of New Hampshire’s most important coastal habitats. Today, a fraction of those wild oyster beds remains. But across the bay, a quiet movement is underway to bring them back one shell and a few baby oysters at a time.  In this episode of Time and Tide, we’re focusing on a small animal with an outsized impact, the Eastern Oyster. We’ll start with the basics: what oysters are, how they live, and why they matter so much to estuaries like Great Bay. From there, we look back in time at the natural history of oysters in granite state waters, to understand why they’ve experienced a 90% decline.  But don't worry, this is ultimately a story about restoration. Brianna Group and Kelsey Meyer from The Nature Conservancy describe how in classic New Hampshire fashion, people from all walks of life are working together to see oysters thrive. Researchers, farmers, volunteers, restaurants, nonprofits, and consumers are all part of the restoration equation.   Some of these oyster restoration projects are big, requiring a football field worth of oyster shells. Dave Beattie and Dale Pike from the Coastal Conservation Association of New Hampshire explain how restaurants can turn their waste into the foundation for tomorrow’s reefs.  In the final act of this story, we hear why restoring wild oysters matters to two sisters working in the oyster business. Laura Brown and Krystin Ward are part of this restoration network and enjoy being able to provide their large, ‘ugly’ oysters for a greater purpose.   Full episode transcript is available below.   Guest Speakers:   Kelsey Meyer-Rust, Ph.D., Coastal Conservation Coordinator, The Nature Conservancy New Hampshire  Brianna Group, Great Bay Program Manager, The Nature Conservancy New Hampshire  Capt. David Beattie, Oyster Recycling Coordinator, Coastal Conservation Association  Dale Pike, Secretary, Coastal Conservation Association and Ocean Conservationist Volunteer with the Nature Conservancy  Laura Brown, Owner and Operator, Fox Point Oysters  Krystin Ward, Laboratory Research Supervisor at the UNH College of Life Sciences and Agriculture and Owner of Choice Oysters  Hosted by: Brian Yurasits, Science Communication Specialist, New Hampshire Sea Grant  Co-Hosted by: Erik Chapman, Executive Director, New Hampshire Sea Grant  Produced by: Brian Yurasits  Further reading:  Restoring Oyster Reefs in New Hampshire’s Great Bay – The Nature Conservancy  Oyster Recycling Project  - Coastal Conservation Association  New Hampshire Sea Grant – Oyster Aquaculture  Fox Point Oysters - Laura Brown  Choice Oysters - Krystin Ward  University of New Hampshire Oyster Research  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  University of New Hampshire is an equal opportunity employer, learn more: https://extension.unh.edu/civil-rights-statement

    50 min
  3. Cod on the Rod: The Complex Science Behind Management of an Iconic Fish

    1 MAR

    Cod on the Rod: The Complex Science Behind Management of an Iconic Fish

    Here in New England, Atlantic Cod (Gadus morhua) is woven into the fabric of our coastal history. For centuries, this species has fueled economies, fed communities, and even left its mark on the map — a testament to the powerful connection between cod and the region it helped define.  But just as cod shaped New England, human activity has shaped cod.  Today, this historically significant fishery is tightly regulated in an effort to rebuild depleted stocks. And yet, effective management depends on understanding something researchers are still uncovering: not all cod are the same.  In this episode of Time and Tide, we explore how scientists, fishers, and managers are rethinking what we know about Atlantic Cod in the Gulf of Maine. Managing fisheries has often been compared to managing a forest, except the trees are invisible and constantly on the move. When it comes to cod, that challenge is even more complex.  Researchers at the University of New Hampshire (UNH) are leading a Sea Grant–funded study examining two distinct stocks of Atlantic Cod in the western Gulf of Maine. Principal Investigator Adrienne Kovach and Co-Investigator Linas Kenter share how winter-spawning and spring-spawning cod differ biologically, and why those differences matter as ocean temperatures change.  In Act Two, we hear from longtime fisherman David Goethel, who brings decades of experience on the water to the conversation. He reflects on how groundfishing in the Gulf of Maine has changed over time and why collaboration between scientists and fishermen is critical to sustaining both the resource and the communities that depend on it.  Finally, Renee Zobel, Marine Program Supervisor with the New Hampshire Fish and Game Department, connects the dots. What do these scientific discoveries mean for the future of fisheries management in New England, and how can management respond to a changing ocean?  Whether you cast a line offshore or order a fish sandwich at your favorite local spot, this episode dives into more than cod biology. It’s a story about the enduring ties between coastal communities and the sea.  Guest Speakers:   Linas Kenter, Ph.D., Aquaculture and Fisheries Research Scientist, New Hampshire Sea Grant and University of New Hampshire  Adrienne Kovach, Ph.D., Professor Department of Natural Resources and the Environment, University of New Hampshire  David Goethel, Commercial Fisherman, Research Biologist and Fisheries Manager  Renee Zobel, Marine Program Supervisor, New Hampshire Fish and Game  Hosted by: Brian Yurasits, Science Communication Specialist, New Hampshire Sea Grant  Co-Hosted by: Erik Chapman, Executive Director, New Hampshire Sea Grant  Produced by: Brian Yurasits  Further reading:  Understanding differential climatic and exploitative impacts on two Atlantic cod stocks in the western Gulf of Maine  Endangered Species: Chronicles of the Life of a New England Fisherman and the F/V Ellen Diane  Atlantic Cod – NOAA Species Directory  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  University of New Hampshire is an equal opportunity employer, learn more: https://extension.unh.edu/civil-rights-statement

    52 min
  4. Cold Water Surfing in New Hampshire: Sharing the Stoke

    1 FEB

    Cold Water Surfing in New Hampshire: Sharing the Stoke

    In part two of this month's two-part series on surfing in New Hampshire, we explore how the sport of surfing can create community, a sense of responsibility to protect the natural world, and monetary value for coastal towns. What is the value of clean water? And just because you surf, does that mean you’re more likely to support healthy coastal ecosystems?  Becs O’Brien and Christina Dubin are two surfer friends who have formed a community of female surfers along the seacoast and are actively involved with marine conservation organizations, including Surfrider New Hampshire and Beyond Plastics. In an age where our screen-time is quickly outpacing our face-time with one another, we discuss how the antidote might just be something as simple as floating on boards with friends in the ocean. Becs and Christina also share their thoughts on how to meaningfully engage the surfing community with the issues facing our coast.    Last but not least, Scott Lemos, a Research Economist and Senior Lecturer at University of New Hampshire, gives us a lesson on surf-onomics. How much money is clean water worth, and how can a sport like surfing impact a local economy? Scott also coins the term ‘positive localism’ as we speak about how surfing can become less extractive from the natural world and leave people with a lasting connection to the natural world instead.    Full episode transcript is available below. Guest Speakers:   Becs O’Brien, Volunteer, Surfrider New Hampshire  Christina Dubin, Major Gifts Manager, Beyond Plastics  Scott Lemos, Research Economist and Senior Lecturer, University of New Hampshire  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  Further reading Surfrider New Hampshire  Beyond Plastics  Scott Lemos’ Research  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  University of New Hampshire is an equal opportunity employer, learn more: https://extension.unh.edu/civil-rights-statement

    35 min
  5. Cold Water Surfing in New Hampshire: Surf History and the Anatomy of a Swell

    1 FEB

    Cold Water Surfing in New Hampshire: Surf History and the Anatomy of a Swell

    Surfing has become an increasingly popular way to recreate here along the seacoast, and across the US as a whole. During the summer, it’s hard to drive anywhere without seeing a longboard strapped to the roof of a fellow commuter’s car.    But why has surfing become so popular in recent years? From 2019 to 2020, the surfing population in the US grew an astounding 28 percent, and over the past five years the sport has experienced 8% average annual growth.  On this month’s two-part episode of Time and Tide, we’re paddling into the lineup with local legends of surfing to look back at the sport’s past along NH’s coastline, attempt to understand who today’s cold-water surfers are, and unpack what coastal issues New Hampshire surfers care about most?   In part one, we paint a picture of what surfing’s past and present looks like along the seacoast. We kick things off with Ralph Fatello, a local photographer and surfer who runs a weekly surfing blog called Ralph’s Pic of the Week and has been doing so for the past 21 years. Ralph has been surfing and photographing New Hampshire waves since the 60’s, and has seen the sport, and how surfers are using our coast, change through time. Next, Brayden Rudert shares his perspective from the water angle. Brayden is a professional photographer who helps shed light on what surfing culture looks like today, and how surfing can connect coastal communities with the ocean. We dig into the question of whether a connection to the ocean through surfing is enough to inspire surfers to protect these coastal places.  Full episode transcript is available below.  Guest Speakers: Ralph Fatello, Surfer and Photographer, Ralph’s Pic of the Week  Brayden Rudert, Surfer and Photographer, Vision Lagoon  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  Further reading:  Ralph’s Pic of the Week (Blog)  Follow Ralph on Instagram  Follow Brayden on Instagram  Brayden’s Photography – Vision Lagoon  Surfrider New Hampshire  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  University of New Hampshire is an equal opportunity employer, learn more: https://extension.unh.edu/civil-rights-statement

    39 min
  6. Shifting Sands: Tracking the Changing Shape of Our Shore

    1 JAN

    Shifting Sands: Tracking the Changing Shape of Our Shore

    From major storms to daily tides, the sandy shores of New Hampshire are constantly moving — gaining sand in some places and losing it in others. But how do scientists and volunteers actually track those changes over time?   In this episode of Time and Tide, we dig into the world of beach profiling — a simple yet powerful method that measures the contour of the shoreline month after month to reveal patterns of erosion and accretion along our coast. By taking regular measurements of beach elevation and slope, the NH Volunteer Beach Profile Monitoring Program contributes to long-term coastal monitoring efforts that inform local decision-making, coastal resilience planning, and scientific research.   Learn how citizen scientists — also referred to as participatory scientists — use two measuring poles to collect this important data, while researchers interpret the meaning of this for your favorite New Hampshire beaches.   What better way to explain beach profiling, than to take you for a walk along the beach in Seabrook, NH, where a small group of researchers and volunteer citizen scientists meet on a windy winter day to measure the beach.Guest Speakers:   Alyson Eberhardt, Ph.D., Coastal Ecosystems Extension Specialist, New Hampshire Sea Grant  Larry Ward, Ph.D., Research Associate Professor, UNH Center for Coastal and Ocean Mapping  Wells Costello, Citizen Science Program Manager, New Hampshire Sea Grant  Rachel Morrison, Research Assistant, UNH Center for Coastal and Ocean Mapping  Hosted by: Brian Yurasits, Science Communication Specialist, New Hampshire Sea Grant  Produced by: Brian Yurasits  Further reading:  Beach Resilience Data  Citizen Science in Shifting Sands (StoryMap)  Storm Report Series  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  University of New Hampshire is an equal opportunity employer, learn more: https://extension.unh.edu/civil-rights-statement

    24 min
  7. Charting a Career in Marine Science, Policy and Education

    01/12/2025

    Charting a Career in Marine Science, Policy and Education

    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  Co-Hosted by: Erik Chapman, Director, New Hampshire Sea Grant  Produced by: Brian Yurasits  Further reading:  Doyle Undergraduate Fellowship  Graduate Student Fellowships  University of New Hampshire Professional Development and Training  University of New Hampshire Career and Internship Fair  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  University of New Hampshire is an equal opportunity employer, learn more: https://extension.unh.edu/civil-rights-statement

    47 min
  8. Root for Eelgrass: Restoring Coastal Nurseries

    01/11/2025

    Root for Eelgrass: Restoring Coastal Nurseries

    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.   Guest Speakers:   Trevor Mattera, Ph.D., Coastal Ecosystems Extension Specialist, New Hampshire Sea Grant  Matthew Allen, Undergraduate Doyle Fellow, New Hampshire Sea Grant  Gretchen Young, Deputy Director of Technical Services, City of Rochester, New Hampshire  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  Further reading:  Piscataqua Region Estuaries Partnership  Doyle Undergraduate Fellowship  Municipal Alliance for Adaptive Management  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.

    43 min
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About

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.

Information

  • Creator
    New Hampshire Sea Grant
  • Years Active
    2025 - 2026
  • Episodes
    16
  • Rating
    Clean
  • Copyright
    © 2025 University of New Hampshire
  • Show Website
    Time and Tide

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