Dorothy Holley: Columns of Information, August 5, 2025

NOAA Teacher at Sea

Dorothy Holley

Aboard NOAA Ship Pisces

July 31 โ€“ August 15, 2025

Mission: Northeast Ecosystem Monitoring Survey (EcoMon)

Geographic Area of Cruise: Northwest Atlantic Ocean

Blog Post #3, August 5, 2025

Date: August 5, 2025

Weather Data from Bridge:
Latitude: 4259.65 N
Longitude: 07026.35 W
Relative Wind speed: 15
Wind Direction: 356
Air Temperature: 21.3
Sea Surface Temperature: 18.996
Barometric Pressure: 1023.4
Speed over ground: 9.9
Water Conductivity: 4.265
Water Salinity: 31.21

Sky is overcast due to the Canadian wildfires!

First, a Thank you to Pam who posted a comment to my last post. When out at sea, it is good to know someone is reading along!

Second, an answer to the math problemโ€ฆ.. If we are out at sea for two weeks, and deploy the Bongo nets at 100 different stops, our team of scientists will deploy and collect plankton over seven times each day, and since there are two groups, weโ€™ll each deploy and collect about 3-4 times each day. (No, we canโ€™t do partial, or fractional, jobs!)

Dorothy, wearing a 35th anniversary Teacher at Sea sweatshirt, takes a selfie from an upper deck. the sun is starting to set in an aquamarine sky over light blue water.
Photo: Sunset while on duty is the best!

Science at Sea:  

Over 70% of our planetโ€™s surface contains water. While we canโ€™t analyze every single drop, we can monitor and evaluate water quality patterns to better understand and predict changes in weather, climate, oceans, and coasts. NOAA scientistsโ€™ work supports severe weather preparedness and international shipping.

Photos: Scientist team and Deck team work together to get CTD equipment in place. Photos by LT Karina Urquhart.

The CTD Rosette is an instrument used to collect water samples in the water column at our stops on our Ecosystem Monitoring (EcoMon) Cruise. โ€œCTDโ€ stands for conductivity, temperature and depth. Closer to the ocean floor, the temperature will be colder (lower) and the pressure will be higher. Conductivity describes how well electricity is being conducted and can be used to determine salinity. Taken together, salinity, temperature, and pressure influence water density, which in turn drive ocean currents and influence global climate patterns. Monitoring salinity and temperature patterns helps us better understand marine life distribution and predict changes in our planetโ€™s water cycle.

The CTD Rosette also has oxygen sensors and a fluorometer. There are 12 Niskin bottles that open and close to collect water samples at different depths in the column. Water from three of the bottles is for a project on chlorophyll concentration. We filter water from three different depths to be examined back at the land lab. (Find out more about CTD Rosettes here.)

CTD Rosette waiting for the next stop. Do you see the windmills?!

You do the Math: If I filtered water from 3 CTD Rosette bottles at each of our 100 stops, and it takes 12 minutes to run the protocol to filter each bottle, then how much time (in days) would I spend on the project? Check in the next blog post for the answer.

Interesting Things: There are no landfills in the ocean. So what happens to our waste?! After every meal we scrape our food waste into a bucket and our paper and plastic waste into another bucket. Plates, cups, bowls, and silverware are washed for the next meal. The food waste is pulverized and dumped into the ocean to biodegrade. The other bucketโ€™s waste is incinerated onboard.  

Career Spotlight:

portrait view of Santanna on deck. He is wearing black work gloves, a life vest, and a yellow hardhat. We can see part of a bongo plankton net on deck behind him. The sky is a muted blue, cloudless; the ocean is blue and very calm.
Santanna Dawson, professional mariner

Santanna Dawson has been a part of the deck department on NOAA Ship Pisces for the last year and a half. His team is responsible for everything deck โ€“ docking, undocking, equipment, cargo, operations, maintenance, painting, repairing, and even security rounds (in case something comes loose and starts rolling around in the night). He ensures the science experiments actually happen by getting the equipment safely in place.

Santanna speaks with a Gullah Geechee dialect, a mixture of creole and low county charm. And even though he grew up around the ocean in South Carolina, his plan was to follow in his fatherโ€™s footsteps by joining the Air Force. A car accident after graduation snapped his femur in half, changing everything. Santanna began his career with little knowledge of the maritime industry, working his way up from entry level with training (earning a spot at a maritime school in San Diego) and persistence.  

One tool Santanna says he canโ€™t live without is a hammer. A tool he doesnโ€™t have yet is a Bluetooth screw driver. The next book on his reading list is Canโ€™t Hurt Me by David Goggins.

Santanna was one of the first people I met on the ship, and he made me feel right at home. How is that? It wasnโ€™t the obvious southern drawl (he sounds more Senegalese!) but the fact that Santana recently lived in Knightdale, NC, my hometown! He knows about the beautiful Knightdale Station Park and his son attended Knightdale High School.  As my mom would say, it really is a small world!

Personal Log: It is joyful to get to โ€œdo scienceโ€ every day! Today I saw pilot whales on the flying bridge with binoculars and a fish egg in the lab with a microscope. I hope you get to experience some joy today, too!

Photos by my cabin mate, Alyssa Rauscher

Dorothy Holley: Is it Important to Take Your Temperature? August 2, 2025

NOAA Teacher at Sea

Dorothy Holley

Aboard NOAA Ship Pisces

July 31 โ€“ August 15, 2025

Mission: Northeast Ecosystem Monitoring Survey (EcoMon)

Geographic Area of Cruise: Northwest Atlantic Ocean

Date: August 2, 2025

Weather Data from Bridge:
Latitude: N41o30โ€™0โ€™โ€™
Longitude: W67o17โ€™0โ€™โ€™
Sea Wave height: 8 feet waves
Wind speed: 13 kt
Wind Direction: 40o SW
Visibility: overcast
Air Temperature: 20.oC
Barometric Pressure: 30.22 inHg
Sky: gray to clear

Photos: NOAA Ship Pisces in port in Newport, Rhode Island; NOAA Ship Pisces’ call sign; Teacher at Sea Dorothy Holley and NOAA Ship Pisces.

Science at Sea 

When someone I care about tells me they donโ€™t feel so good, the first thing I want to do is put the back of my hand to their forehead. Do you have a temperature? If so, your body is probably fighting off something. A thermometer can give a more quantitative answer. With more precise data, I can best treat the underlying cause.

Photos: Bongo nets on deck, awaiting deployment; Ed Williams and Alyssa Rauscher deploying the bongo nets; Pulling the nets back on board. Photos by LT Karina Urquhart

NOAA scientists help us take the temperature of our oceans by monitoring plankton โ€“ the base of the marine food web. Iโ€™m not talking about sticking tiny thermometers into copepods or krill, Iโ€™m talking about measuring plankton abundance and composition over time. NOAA collects plankton data four times each year โ€“ summer, fall, winter, and spring. With over four decades of plankton data, NOAA scientists are able to help fisheries make informed decisions to maximize production as well as protect vulnerable species. 

Our team uses Bongo nets to collect plankton on this NOAA Summer Ecosystem Monitoring cruise. We will make over 100 (I think there are about 160 planned stations but we probably won’t have time to get to all of them) stops from Cape Hatteras to the Gulf of Maine, collecting samples that will later be sorted and catalogued. (For a more detailed description of Bongos, see Teacher at Sea Tonya Prenticeโ€™s blog here)

You do the math: If we are out at sea for two weeks, and deploy the Bongo nets at 100 different stops, how many times does each group need to collect plankton from the Bongo nets each day? Check in the next bog post for the answer.

view of tables in the mess. each of the chairs' legs is capped in a cut tennis ball.
Mess hall or Cafeteria?

Interesting Things: I am surprised by the ways I have been prepared for life on a NOAA ship by classroom life in a public school. The chairs all come with tennis balls on the bottom. In my classroom, we put tennis balls on the chairs so that they donโ€™t make loud noises or create as many scuffs on the floor. Why do you think we have tennis balls on the chairs on a NOAA ship?

photo of the seal of NOAA Ship Pisces, displayed somewhere on the ship. It features an illustration of the ship against a simple map of the Gulf of America, above two swimming fish. on the land of Louisiana, Mississippi, and Alabama, there's a pale image of an old diving helmet and crossed tridents. The seal includes the words NOAA Ship Pisces; R-226; Pascagoula, Mississippi. The circle of the seal is bordered by the design of a rope.
NOAA Ship Pisces home port is Pascagoula, MS
Amanda Jacobsen, Science FIeld Party Chief, NOAA Ship Pisces

Career Spotlight 

Amanda Jacobsen is our Science Field Party Chief. She works in the NOAA Fisheries lab in Rhode Island, and sails on NOAA cruises like this one. She grew up in Connecticut and attended a small, liberal arts school, Connecticut College. While there, Amanda took a broad spectrum of science courses including Biology, Physics, Chemistry, Environmental Science, and even Environmental Law. Her degree in Environmental Studies helps her understand the many impacts on Marine Ecosystems.

Amanda is now a full-time NOAA scientist and a part time graduate student, studying to earn a Masterโ€™s degree in Marine Biology from the University of Massachusetts Dartmouth. Her thesis examines the energy of plankton in the food chain. (Alert: we will do bomb calorimetry labs next year with Amandaโ€™s data!) Better understanding the bottom layer of the energy pyramid is important to harvesting all of the tropic levels above it. If you like eating fish or even fish sticks, you will benefit from Amandaโ€™s work because plankton provides food for nearly every creature in the ocean either directly or indirectly!

One tool that Amanda canโ€™t live without is the Katy Clip (shout out to NOAA Ship Henry B. Bigelow survey technician Katy McGinnis!). The Katy Clip helps us wash down the Bongo nets when collecting plankton.

Amanda is currently reading the Red Rising Series by Pierce Brown. She also recommends The Oceanโ€™s Menagerie by Drew Harvell. Amanda enjoys doing just about anything as long as it is outside. I am glad she is helping take the temperature of our oceans so that we might enjoy fishing for many years to come!

group photo of two women and a man lined up on deck against an outer wall of the ship. Dorothy, on the left, and Miles, at right, wear life jackets; Miles also wears a green hard hat. Amanda, at the center, has an intercom radio receiver attached to the neck of her sweatshirt.
A part of our Science team: Dorothy, Amanda, and Miles

Personal Log

The ship is going 24/7, so the scientist are, too! Our team is divided into two groups โ€“ one that works 3 am โ€“ 3 pm and the other works 3 pm- 3 am. Amanda, Miles and I are in the second group. We get to see the sunset every day, but I probably wonโ€™t make it to breakfast!

Sunset over the ocean; the sun has almost dipped beneath the horizon. the sky is mostly clear except a few wisps of low clouds.
Sunset over the Atlantic

Dorothy Holley: Introduction, July 25, 2025

NOAA Teacher at Sea

Dorothy Holley

Aboard NOAA Ship Pisces

July 31 – August 15, 2025

Introduction

Hello! My name is Dorothy Holley and I have been teaching Science in North Carolina for my whole career. While North Carolina does touch the Atlantic Ocean, I live in the capital city of Raleigh, about two and a half hours from the beach. And thatโ€™s just itโ€ฆ. my family, my students, my communityโ€ฆ.. we all think about going to the beach. But what is beyond the sand and the surf? The OCEAN!! Over 70% of the world is water!! That is a LOT of science lab space!!

For the next two weeks, I am going to be a NOAA Teacher at Sea. NOAA stands for the National Oceanic and Atmospheric Administration. NOAA is one of the seven uniformed services of our government, whose roots stretch back to 1807 when President Thomas Jefferson established the Survey of the Coast to create nautical charts for safe navigation. Today NOAA is responsible for weather forecasting, severe weather prediction, climate monitoring and research, ocean and coastal management, deep-sea exploration, as well as data collection and dissemination. In other words, NOAA helps us live better by supporting the economy, protecting life and property, and promoting environmental stewardship. 

a political map of North Carolina, showing Raleigh to be roughly central to the state
Map of North Carolina. Raleigh is in the center. (Credit: World Atlas)

A couple of years ago, I worked in Washington, DC, to grow as an education leader. I wanted to understand how science education was being supported and how I could better prepare my students for life after high school. One of my first โ€œfield tripsโ€ was to NOAA offices in Maryland where I saw science being used to improve our quality of life.

a courtyard and tidal pool (creating waves that break against a wall) in front of buildings
NOAA headquarters

The picture below shows a Tide Predicting Machine that was designed by the U.S Coast and Geodetic Survey in 1895. Construction began in 1896 and was completed in 1910. The machine was used continually until 1965, when it was replaced by a computer.   

a tide predicting machine - a large metal machine with many moving levers and dials - inside a glass case, on display. there are framed historic photographs of the machine located in and around the glass case.
Tide Predicting Machine, used until 1965

I also got to tour a NOAA โ€œHurricane Hunter.โ€ These planes fly right into the eye of Hurricanes to gather important and real-time data.

Dorothy, in a blue suit, stands for a photo in front of an airplane on a tarmac - we can see the NOAA logo beyond the wing
Dorothy Holley in front of a Hurricane Hunter
view of a seat inside the airplane on tracks so that it can slide back and forth; a stack of computers or radio equipment in front the chair
Hurricane Hunter airplanes are modified for the mission!

The stickers on the bottom of the plane are like the stickers our football players put on their helmets each season to recognize special achievements on the field.

stickers on the belly of the airplane: first, three rows of flags of different nations; then four rows of red hurricane-shaped stickers containing storm names and dates
Real time data was collected from all of the Hurricanes listed here on the belly of the airplane
close up view of some of the storm stickers, red stickers shaped like a hurricane spiral: they read EPAC Bonny 1976, Frances 1976, Gloria 1976, Emily 1987, Floyd 1987, Florence 1988, Humberto 2001, Iris 2001, Michele 2001
Close-up view of the stickers commemorating the storms this Hurricane Hunter surveyed

Last December, some of the other teachers at West Johnston High School and I participated in a teacher workshop on RESILIENCY. We visited a ghost forest and the second oldest federal marine laboratory in the nation. This NOAA facility in Beaufort, NC conducts scientific research to help us understand and preserve coastal environments, manage sustainable fisheries, and maintain coastal resilience. 

four women in jackets and coats pose for a photo on a beach. behind them, we can see sun bleached stumps and knees of dead cypress trees
Teachers at West Johnston High School in a ghost forest on the NC coast.

As a Teacher at Sea, I will sail on NOAA Ship Pisces to better understand and relate the jobs of the scientists and the science being used. The Teacher at Sea program was established in 1990 and has been in existence for 35 years. Teachers from all 50 states as well as four territories have logged over 20,000 days at sea, sharing thousands of blog posts, conducting more than 100,000 hours of ocean-based research, and relating countless stories of science application.  To become a Teacher at Sea, I had to fill out a lengthy application (which included asking people to write letters of reference on my behalf), attend virtual training sessions, read and fill out quite a bit of paperwork, and speak with a seasoned team of NOAA specialists who are invested in helping teachers make connections for their students. Charts, maps, and calendars have been consulted, checked, and analyzed!

view of a time capsule with a plaque that reads: This geodetic mark was established to commemorate 200 years of science, service, and stewardship to the nation by NOAA and its predecessor agencies and to mark the location of NOAA's 200th Celebration Time Capsule. The materials reflect the essence of NOAA in the year 2007, as well as the agency's rich history, preserved for the benefit of NOAA's future community. Sealed in December, 2007, to be opened in 2032.
NOAA’s 200th Celebration Time Capsule and Geodetic Mark

One special opportunity for me as a Teacher at Sea will be to deploy a DRIFTER and for us to monitor and analyze the drifter data. The Global Drifter Program began in 1979 with over 1,000 drifters already deployed. We can make predictions about marine debris, animal larvae paths, and oil spills, and then track our drifter after it is deployed. This data will ultimately help us make more accurate weather forecasts and track storms and hurricanes.

illustrated diagram of a drifter buoy. a white ball floats at the water line; this is labeled "Surface float - designed for moving on the surface with currents." The float has an Antenna, labeled: "the drifters transmit the data they collect as well as their position via satellite." Data is depicted as a gray triangle extending up from the antenna to a satellite in the sky, which is communicating with a satellite dish on land. Beneath the float, down into the water, extends a black cable, thicker toward the float. It's labeled: "Sensors: Sea Surface Temperature sensor and various measuring systems." The cable connects to what appears to be gray cylindrical tube, waving in the water labeled "Drogue: The buoys have some form of subsurface drogue or sea anchor."
Drifter information
A drifter ready to be deployed! Photo by TAS ’24 Tonya Prentice

I will share my NOAA Teacher at Sea journey here for you to read and to see. You are welcome to ask questions here on the blog and I will ask the team for help in answering them.

I canโ€™t wait to begin this incredible journey!

Fair winds and safe sailing!

Sinh Nguyen: 5 Takeaways from My 5K Runs at Sea, July 24, 2025

NOAA Teacher at Sea

Sinh Nguyen

Aboard NOAA Ship Pisces

July 7, 2025 โ€“ July 24, 2025

Mission: Larval Bluefin Tuna Slope Survey

Geographic Area of Cruise: North Atlantic Ocean, Slope Sea

Date: July 24, 2025

Conclusion Log

On my first day sailing aboard NOAA Ship Pisces, I stood on the treadmill with my head held high. โ€œI got this,โ€ I told myself while setting my usual running metrics.

Exercise treadmill positioned on metal flooring of a ship surrounded by electrical tubes and wiring, cabinets, and engine system parts.
The treadmill was bolted down on the lower deck. Tucked among the engine systems.
Lower deck of a ship with a punching bag hanging in the left foreground. There's a big metal drawer, large wood-top island table, and exercise equipment in the background.
It smelled like metal and salt. The air felt like a humid Texas summer: warm and dense.

โ€œYouโ€™ve been training these past few months,โ€ I reminded myself. โ€œThis will just be another run.โ€ A few seconds in, I stumbled. Hard. The treadmill hadnโ€™t budged… but I sure did! Iโ€™d swerved off and landed (thankfully feet first) on the floor.

Fast forward to my final days at sea: I’d completed consecutive 5K runs on that same treadmill. Boyโ€ฆ it wasnโ€™t easy. But neither were the science mission nor my time at sea, and thatโ€™s where the reflection begins.

  • Close up of an exercise treadmill console showing a person's most recent workout.
  • Close up of a person's wristwatch screen showing how much they ran.
  • Asian man with glasses and upper arm tattoo sits and smiles on a ship deck to cool off after exercising.

Iโ€™ve been thinking about how much my time at sea mirrored my time on the treadmill. Here are five takeaways from running at sea; and what they taught me about science and teaching.

A man holds up a jar half full of some liquid to two women. In the background, two other women are standing and working at a counter. Text overlay reads, "Accept help. You're also a learner."

Accept help. You’re also a learner.

Small silver gray Lasko fan placed on the lower deck floor next to an exercise treadmill.
Next to the treadmill was a fan. During my runs, engineer crew members would pass by on their rounds and turn it on. They checked in (made sure I was cooling off) and reminded me I wasnโ€™t doing this alone.

When I began the Teacher at Sea program, I had no experience with NOAA fisheries research or oceanography. Iโ€™d never lived on a ship. Let alone been out in deep water.

Three people stand together aboard a ship and smile for the camera with blue ocean water and sky behind them. The man in the middle is wearing jeans and a button up while the woman and man on the ends are in black boots and navy blue uniforms that say NOAA Corps.
Every part of the mission, from scientific terminology to ship protocol and living, was unfamiliar.

Although, I wasn’t expected to know it all, my science team was patient. Like any great teacher, they scaffolded the learning: they explained terms, modeled procedures, and gradually released responsibility until I could confidently take on the tasks myself. To be among top scientists in their field. To feel welcomed, supported, and taught… was humbling.

A large group of people stand on a ship deck listening to one man speaking and explaining information. The text "Begin steadily, avoid burnout." is overlaid on top of the image.

Begin steadily, avoid burnout.

There were moments, especially early on, when I wanted to try and do everything, even after my 12-hour shifts. I went from 0-100 fast, thinking that was the way to show commitment. A few days in, I was hit hard by exhaustion.

Over-the-shoulder image of a man at the command deck of a ship with a view of the sea at sunrise/sunset ahead.Asian man with glasses photographed in mid-motion smiling/laughing at the camera.
The same lesson applied to my runs. Iโ€™d start too fast and burn out too early.

Eventually, I learned to pace myself, both on and off the treadmill. I set boundaries, made time for rest, and remembered that sustainability matters more than speed.

Asian man with glasses, backwards yellow baseball cap, and navy blue Teacher at Sea t-shirt stands on a ship and smiles for a photo with ocean water and blue sky behind him
I learned that I could be more helpful, more present, and more productive when I prioritized well-being.
Two women with ponytails sit at a wooden table on a ship deck surrounded by barrels, thick ropes, and other equipment. Overlay text says, "Stay flexible. Conditions will change."

Stay flexible. Conditions will change.

Shout-out to Emily Susko (program coordinator) for helping making this experience possible before, during, and even after the sail. Her patience reminded me that plans shift, even with the best preparation.

As a teacher, I know this well: you can write the perfect lesson plan, but students and life will take it in different directions.

Zoomed out image of a man standing against the inside walls of a ship deck and waving at the camera
The same applies at sea. From unpredictable weather to equipment delays, we had to adapt constantly.

Not everything was in our control but our responses and mindsets were. Flexibility didnโ€™t mean lowering expectations. It meant adjusting our mindset and staying ready for the unexpected.

Even on the treadmill. It was calm and cool on some days but rocky and shaky on others. Eventually, I adapted, adjusted my balance, and kept going.

Close up shot of three individuals at work, leaning over a table with various research equipment. Overlay text reads, "Stay grounded in your 'Why.'"

Stay grounded in your “Why.”

Our mission was to survey larval bluefin tuna. Some stations yielded many while others, none. But each time mattered.

Four women with light skin tones wearing orange life vests, ocean overalls, and hard hats pose for a photo as they complete nighttime work on a ship.
We werenโ€™t focused on isolated results but were focused on contributing to the larger scientific picture.

There were lonely moments at sea. I missed land, my family, and friends. But I reminded myself why I was there: my students back home. This “why” connected my work at sea with my work in the classroom, and kept me grounded.

Asian man wearing glasses and orange ocean overalls kneels and smiles on a ship deck near a table and research equipment
Whether I was preserving fish samples or logging data at 2 AM, I knew I was part of something bigger that would outlast the sail itself.
Four women stand with their elbows on the walls of the ship deck overlooking water with land, city buildings, and other vessels in view. Text overlay reads, "Remain curious and humble."

Remain curious and humble.

One of the most memorable moments came after a shift. It was a quiet night. The storm had calmed, winds had slowed down, and Pisces‘s lights had dimmed. I walked out to the back deck alone.

Nothing surrounded me but ocean. I looked up and saw the Milky Way. Lots of stars above while I was surrounded by nothing but the ocean. I paused, stunned by the beauty. My mind loaded with curiosity and with many questions.

That moment was a reminder that there’s so much I donโ€™t know. So much to still wonder about. And that wonder is a gift I’ll bring back to my students.

I will come home with the renewed motivation to bring the ocean back to my school community, not just through facts, but through curiosity. I want students to look at the world, land, sea, or sky, and feel and then share that same awe.
Man wearing glasses, backwards yellow ball cap, shorts and NOAA Teacher at Sea shirt standing on a ship deck, looking to his right with a sunset/sunrise in the distance
Iโ€™m grateful to NOAAโ€™s Teacher at Sea Program for reminding me that learning is lifelong, and that the unknown is not something to fear… but to explore.

As educators, we wear many hats: teacher, learner, mentor, student. At sea, I was all of them. For that, I thank all crew members aboard who made this mission possible:

Metal glass cabinet containing multiple profile photos thumbtacked onto a map and labeled "NOAA Ship Pisces Crew."

Of course… I can’t forget the science crew:

Close up image of a brown-haired man with light skin tone smiling. A blurry, lit-up Christmas tree in the background.
Chief Scientist Dave Richardson
A woman with long blonde hair wearing a beanie and warm clothing  stands for a photo against the ship railing.
Allison Black
Close up image of a blonde woman wearing glasses and an orange shirt smiles for a photo. Green trees and a cityscape can be seen behind her.
Chrissy Hernรกndez
Brown-haired woman with medium skin tone smiles for a photo with a sunset/sunrise ocean view behind her.
Autumn Moya
Brown-haired woman wearing shorts and t-shirt kneels on the ground to work on a piece of equipment.
Amanda Jacobsen
Close up profile image of a woman with light skin tone and sunglasses propped up on her head. There is a sunrise/sunset rocky shoreline in the background.
Kristen Walter
An older woman with light skin tone wearing glasses and a blue hoodie sits on a ship deck with her legs propped up against the inner side walls.
Elisabeth (Betsy) Broughton
Woman with dirty blonde, long curly hair wears an orange vest and hard hat as she crouches to work on research equipment.
Sarah Glancy
Nine individuals in casual clothes stand and crouch on a ship deck together for a group photo.
The science crew aboard NOAA Ship Pisces for the larval bluefin tuna mission.

Science crew: Iโ€™ll carry everything I’ve felt, seen, heard, and learned from y’all with me into every lesson I teach.

  • Asian man wearing glasses, yellow backwards ball cap, and NOAA Teacher at Sea shirt stands and works at the a ship control panel.
  • Over the shoulder view of a man standing at a ship control panel with multiple windows overlooking the sea ahead.
Asian man wearing glasses, jeans, and NOAA Teacher at Sea shirt stands on dock next to a big white NOAA ship and smiles for the camera. Overlay text says, "If you're an educator interested in this opportunity, I highly encourage you to apply for the 2026 sail season."

If youโ€™re an educator interested in this opportunity, I highly encourage you to apply for the 2026 sail season.

Sinh Nguyen: Larval Bluefin Tuna Watch Continues! July 22, 2025

NOAA Teacher at Sea

Sinh Nguyen

Aboard NOAA Ship Pisces

July 7, 2025 โ€“ July 24, 2025

Mission: Larval Bluefin Tuna Slope Survey

Geographic Area of Cruise: North Atlantic Ocean, Slope Sea

Date: July 23, 2025

Weather Data:

9:14 AM Eastern Time

A view of this morning. The water and breeze are calm. NOAA Ship Pisces is sailing at a speed of 10 knot (just about 12 mph).

The current temperature is 23ยฐC (ยฐ73F). 

The wind speed is 11 knots (13 mph).  Source: Windy app.

map of the area around Newport, Rhode Island, showing a blue dot just south of the port. this map is oriented with East pointing up.
We’re close to Newport, where Pisces will dock! She’ll dock at Naval Station Newport.
A view of Rhode Island.

Science Log

Uplift Education, Mighty Primary scholars: Thereโ€™s been a lot of science work lately!  Last time, I wrote about the four tasks for our science mission. 

Letโ€™s recall: Can you think, share, and then act out these tasks with your parents?

Iโ€™ve just finished another sunset shift (3 PM โ€“ 3 AM watch) so Iโ€™m feeling more tired than usual.  But itโ€™s been exciting sampling bluefin tuna larvae and seeing lots of planktons! Here are some updates on each task:

Sinh sits at a computer desk next to a woman in a blue sweatshirt. Sinh writes in a notebook. Words on top of the image read "Computers for CTD data"

Computers for CTD data

Fun: Watching the computer screens as the CTD instrument goes deep into the ocean felt like playing a video game.

Challenge: Staying focused while recording (writing down) numbers carefully.  Thereโ€™s a lot of data!  This task was the most challenging for me.  It requires understanding CTD data well so all crews know how to control it.

*Note to self:  Donโ€™t forget to hit โ€œsaveโ€ and “backup” buttons!

Learned: Have a sticky note or notepad handy!  Just like taking notes in class, I was always recording numbers on paper and double-checking the numbers.  They can be easy to forget with so much going on. 

a woman sits at a computer, watching the CTD data feed. she holds an intercom in her left hand
It was awesome seeing how conductivity, temperature, and data really can tell us the best conditions to sample larval bluefin tuna.
notebooks are strewn around two computer keyboards at a desk with multiple monitors
Have your notes handy!
view of multiple computer screens needed to display the CTD feed; we see hands writing on a datasheet and holding open a small notebook
This task requires paying close to how temperature, conductivity, and depth interact.
a woman is seated at a computer, surrounded by four more science team members looking on with interest; they are all facing the camera, which is behind the computer monitor.
Data is fun. For me, the CTD is still a but confusing but I’m a lot more confident using it now. I’m still learning more about it, but it was a great time learning from everyone.
The CTD, live in action! Can you try reading and analyzing (studying) these numbers?

crewmembers rinse down bongo nets on the deck of the ship. the sky is mostly clear and the ocean is very blue. words atop the image read: Washing Bongo nets

Washing Bongo nets

Fun: Spraying the nets with the water hose was like a mini water fight.  This is my favorite task.  Once emptied out from the nets, seeing all the planktons caught is super interesting.

Challenge: The nets are heavy when theyโ€™re full of seawater and plankton.  Plankton are also so small, so I was constantly worried about spraying the nets down too hard.  I didnโ€™t want to hurt them, especially when trying to spray down the corners. 

Learned: We wash the nets carefully to make sure we collect every tiny creature for research. 

two crewmembers on deck; a woman in orange overalls holds up the codend of the bongo net resting on deck
The โ€œsprayโ€ function was the best because water wasnโ€™t projected too strongly.
Sinh, wearing orange overalls, stands in front of a rack of life vests, foul weather gear, and hard hats
It’s important to wear protective gear. I had to learn how to put it on and off quickly before this task.
Bongo nets being retrieved. This is a view from the bridge, where NOAA Corps Officers are supporting with ship controls during net pick up and drop off.
Inside the bridge while during this task. Red light is used so that it doesn’t distract your eyes and focus from seeing other lights. It is dark and very quiet inside during night time. NOAA Corps officers explained to me what’s happening inside the bridge during this task.
Sinh, wearing his Teacher at Sea t shirt and orange overalls, poses on deck at night with a sieve full of plankton rinsed out of the nearby bongo net
After they’ve been washed down into trays, it felt great looking at different types of planktons!
Sinh, wearing orange overalls, kneels on deck next to bongo nets resting flat on deck. he smiles for the camera. the ocean is fairly calm and vivid blue.
We had to make sure the deck was clean and clear before the next station, or stop, for deploying the bongo nets,
a woman in a hard hat and life vest kneels on deck at night next to a small plankton net, a sieve, and a drifter.

Drifter Traps

a woman in a hard hat, life vest, and orange overalls poses for a photo with a larval fish trap hanging from a peg on the wall
Scientist Kristen with the drifter traps before their deployment. Do you remember them from one of the earlier posts? Photo credit: Sarah Glancy
A few days into starting our missions, we began deploying them into the waters at night and then recovering them in morning. Photo Credit: Amanda Jacobsen
close up view of a sieve containing larval fish
Some collected samples. Photo credit: Amanda Jacobsen

two women stand in the wet lab at the metal table looking down at sampled larvae

Preserving samples

Fun: Using science tools made me feel like a real marine scientist.

Challenge: Itโ€™s tricky to label each sample correctly and handle them gently. 

Learned: Preserving the samples keeps them safe so scientists can study them later under microscopes.

a woman wearing large orange overalls stands at a metal table in the wet lab, an empty sample jar in her hands.
Plankton samples were stored in bottles filled with ethanol, to help preserve (protect) DNA and genetic properties.
in the wet lab, Dave holds up a sample jar for two other science team members to look at. we see two additional people in the background, facing away from the camera.
We had to be careful to use the right solution when preparing bottles for storage.  We donโ€™t want them preserved in seawater!
close up view of a fish preserved in a glass sample jar
Did you know: Storing planktons in ethanol (a special kind of alcohol) keeps them from rotting. Ethanol acts like a superhero freeze so scientists can study them later. Without it, samples would break down and weโ€™d lose all their important properties. Photo credit: Amanda Jacobson

a man stands at a table in the wet lab, labeling sample vials; words on top read "Identification (ID)"

Identification (ID)

Fun: Looking at different sea creatures under the microscope is like exploring a new world.

Challenge: It takes patience and practice to tell tiny fish and plankton apart.  Even years of practice and studying! 

Learned: Looking into the microscope lenses, it helped to take off my glasses for better focus. 

two science team members look through adjacent microscopes
Observing planktons under a microscope requires close attention to details.
a man looks through a microscope
Dave was excited to have identified bluefin tuna larvae!
Sinh, wearing his Teacher at Sea t shirt, looks through a microscope and uses tweezers to adjust the plankton that he is viewing
Because the ship can get rocky, both my feet and my hands had to be as still as they can be. 
two women look through microscopes at plankton samples
Scientists Kristen and Sarah are trying to stay still while observing samples. Imagine trying to take a picture while youโ€™re rocking back and forth!
Sinh, in his Teacher at Sea t shirt and a backwards baseball cap, holds up a small sample vial and smiles for the camera
Once identified, we made sure samples are ok to be stored.
close-up view of a square cardboard box filled almost completely with small capped sample vials, each with a number handwritten on top. There is a space for one absent vial.
Samples of larval bluefin tuna were stored in these vials, or small sample bottles!

Here are some planktons I saw under the microscope… We will describe and then identify them once we’re back to school!

Activity: Microscope Sample Fun!
We will look at real microscope pictures and become scientists! Students, if you’d like: draw, label, and describe what you see in each photo. Zoom into each photo if possible. Use adjectives to describe color, shape, and texture when talking about each sample. Don’t forget the small details! We will discuss these samples once back to school.


Crew members aboard NOAA Ship Pisces.

It really does take a team to make the โ€œscienceโ€ work. 

at night, three crewmembers wearing life vests lean over the railing. one holds a purple line (rope) attached to buoys and feeds it over the rail.
Even though crew members on NOAA Ship Pisces are in different teams, everything on the ship and throughout this mission requires collaboration, understanding, and patience. 

Can you tell your parents a time when you had to work in a group with different classmates?  What was it like?  Did you get along with everyone?  What happened when you didnโ€™t?  How did everyone work together to get the task done?

These four tasks wouldnโ€™t have been possible without the hard work of these crews: Steward, NOAA Corps, engineer, electronics, survey, and deck.

Personal Log

My days at sea are long, just like a school day might be for you.  Once I finish my shifts at 3 AM, Iโ€™ve been going to straight to my stateroom for a shower and then bedtime.  Because my roommate wakes up at 4 AM for his ship work, I must stay quiet, just like you would at home sharing a room with a brother or sister.

Iโ€™ve been waking up at 11 AM, just in time to get ready and then eat lunch.  Until 3 PM, I have time to take care of my personal needs.

view of exercise equipment in the workout room
Staying active while sailing is important! Thereโ€™s fitness equipment for exercising.  Rooms are available throughout the day and night for crew members to use.  Because theyโ€™re small spaces, we try to keep them clean, tidy, and to a small number of people.
treadmill
Running on the treadmill feels like doing the wobble line dance! You have to remain balanced with the shop rocking back and forth.
stacked washing machines in the laundry room
Fishery work can get messy. I’ve been able to do laundry during free time every few days.
two men pose for a photo near an open locker full of t-shirts. the man on the right wears a NOAA Corps uniform and a radio.
Pictured: Survey Technician Ian and Ensign Cheney,. There were times when I ran out of clean shirts to wear after a watch. But, no problem! There’s a store in the lounge area with shirts, sweaters, and hats that can be purchased. They have awesome NOAA Ship Pisces designs on them. Buying them supports crew members through awesome events and activities.

NOAA Ship Pisces online store
If you’re interested in seeing or buying, here is the store link: https://stores.inksoft.com/NOAAShipPisces

photo of a printed page displayed on a wall; as seen in red lighting for some reason. the page is titled "Your Healthiest Self: Emotional Wellness Checklist"
It’s also important to take care of our overall health, just like we do throughout the school day with brain breaks or with visits to the nurse. There’s a medical room I’ve been going to for medicine, including pills for seasickness or body pain. I’ve also been reminded of ways to keep both my body and mind healthy. These reminders are posted all over NOAA Ship Pisces because when you’re away from family and friends, it can feel difficult.

photo of Sinh, wearing his Teacher at Sea t shirt, posing near the railing on the flying bridge of NOAA Ship Pisces

To learn more about crew members and what they do, there was time to tour different parts of NOAA Ship Pisces

view inside the bridge. a woman sits, arms folded, at a desk with papers and a radio intercom. a pillar on the wall is painted with four nautical flags and NOAA Ship Pisces' hull number: R-226. Beyond, we can see the windows that line the front of the bridge, and the control panels.
Autumn and I were taking photos outside when we decided to go into the bridge and learn more about its operations.


We also learned that the engines of a ship are equally as important.

a photo collage of the engineering department, with each photo individually pinned to a bulletin board. a nautical map covers the bulletin board as a background. there are 8 photos, labeled: ACMB Butters, Second Assistant Engineer Drew Barth, Fountain, 2AE Bill Bierwirth, Electrical Engineering Technician Glen "Sparky" Burton, Lewis, Karla, Junior Engineer Travis Martin.
The engineer crew.

Below was a tour of important engines needed for the ship to sail safely.  The machines were incredible!  It was amazing to see how hard the engineering team works to make sure the mission was possible for us. 

It got loud and hot in the engine room! We had to wear earplugs to protect our ears.
Sinh, wearing his Teacher at Sea t shirt, poses for a photo in front of the engines and flashes a shaka sign
It was fascinating to learn so much about ship engines. These engines help the ship move through the ocean, just like your legs help you walk. They burn fuel to make power, turning giant propellers under the water to push the ship forward.

Next up was a tour of the Acoustic Room. Inside, scientists and technicians use sound waves (through special computers and instruments) to hear all sorts of sounds underwater. These sounds help them find the ocean floor, see how deep the water is, and spot sea animals.

Sinh and Ian stand on either side of the CTD rosette on deck, hands extended as if presenting it
In our mission, we collaborated with an awesome survey technician, Ian!
Ian makes sure our machines, especially CTD, works correctly and safely. He can help fix them if goes wrong.

With Ian, I also learned about special tools used to map the ocean floor. This is called hydrography. Itโ€™s like making a giant map of whatโ€™s under the sea! Here’s a tour the Acoustic Lab.

Disco ball with red and green lights
There’s even a disco ball there!

Of course, we can’t forget our electronics technician, Alex!

Now, itโ€™s your turn to be scientistsโ€ฆ

Uplift Education, Mighty K-12 students: My time on seaโ€™s coming to an end. Iโ€™m returning soon to Texas, so this isnโ€™t goodbye…

View of ocean and blue sky from ship

Itโ€™s a โ€œSEAโ€ you later! 

Howeverโ€ฆ I now pass this adventure to you:

Reflection questions for you:

What do you think would happen if we didnโ€™t collect ocean data using tools like the CTD?

Why do you think itโ€™s important to study larval bluefin tuna?

Even if scientists complete this mission, what do you think you could discover or protect when you become a scientist one day?

Science crew aboard ship
The amazing science crew! They look forward to seeing you at sea and working with you, future Mighty scientists!
Man wearing glasses, a NOAA Teacher at Sea t shirt, and backwards yellow baseball hat, stands on the ship with his hand on the ledge looking out to the ocean, with blue sky in the background

The text overlay says "As I'm about to sail back...I can't help but wonder...could one of you be the next ocean explorer?"

As Iโ€™m about to sail backโ€ฆ I canโ€™t help but wonderโ€ฆ could one of you be the next ocean explorer?

To family, friends, community, NOAA Ship Pisces crew members, readers, and supporters of NOAAโ€™s work & cause:  Once back in Texas, I look forward to sharing my experiences with you in an upcoming conclusion post.  Please stay tuned!