NOAA Teacher at Sea
Robert Markuske
Aboard NOAA Ship Oregon II
August 13 – 29, 2025
Mission: Long Shark and Snapper Survey
Geographic Area of Cruise: Gulf of America
Date: August 29, 2025
Weather In NYC:
Not sweater weather, but fall is in the air, at least for now.
Final Blog and Reflection
This will be my last blog reflecting on and drifting in the Gulf. Due to getting caught up in the final moments at sea and reacclimatizing to land in Brooklyn, I’ve kept this blog at home. I had several colleagues and students asking about it.
By the time this is published, I will be behind the porthole of room 201 at New York Harbor School, a few weeks into the chaos.
After my watch finished fishing, collecting data in the late evening hours of the 27th, I did some laundry and packed my bags. Yes, a whole day early; we still had more than 24 hours to get to Gulfport, Mississippi. Most people who were my shipmates didn’t live in the urban culture or environment. They were baffled by my intent on staying up late to do laundry, due to the desire not to bring home dirty clothes and take them to the laundromat.
Throughout my journey, I’ve mostly caught beautiful sunsets each evening during my shift, which didn’t get old.
I waited until the last day to wear my “Teacher at Sea” swag. Little do people know, I am superstitious. Even when I go to see my favorite bands, if I buy a t-shirt, I wait to wear it until after the three-day run or the tour is over, so I can’t ruin the vibes. Can’t represent until it’s over, and can’t sabotage the vibes.
Although I haven’t made it to the dock yet and stepped foot on land, the swag broke loose; fieldwork is over. So I thought. I didn’t expect to get dirty again on the 28th. However, the night crew was gracious enough to give me one more chance to collect and survey the Gulf. Photo op achieved, trying to study a tilefish that goes a little squirrelly. We also had an opportunity to see a shark – this survey hasn’t seen one in five years – roughskin spurdog, Cirrhigaleus asper.
My last two blogs were directly related to my own learning and gathering information to enhance the curriculum of the marine affairs program.
I untangle threads I’ve felt I was deficient in, traveling from a park ranger to the Marine Affairs instructor at New York Harbor School. The experience and the people I worked with, talked with, and learned from added a level to what I attempt to facilitate yearly. Like a puzzle, I had lost pieces too. More accurately, I never fully opened this puzzle. Glad I found the pieces.
As you can see from my last blog, I facilitate a fairly complex course for high school students. The content of the previous blog is what I try to reduce to 11th and 12th graders in some shape or form. It’s about to become more complicated due to this experience; more precise and methodical at the same time. More organized chaos coming your way.
I’ve seen every program offered at New York Harbor School on this ship. Most high school students have a hard time seeing several feet or years in front of them, and what these careers look like. I had no idea what I was doing when I went to college at 18, with aspirations to be a lawyer.
The projects on the ship I’ve been engaged in and the people I’ve been working with to do them, I can see our students at Harbor School pursuing. These insights help support them in following their passions and achieving them, including how to find them, how they evolve, and the resilience needed to try new things.
Often, pathways aren’t a straight line.
I know mine wasn’t. Like, what am I even doing on this ship in the Gulf of America, going back to teach Marine Affairs, Sustainability, and Urban Agriscience? It unfolded that way. Who knows what happens next with all the materials and networks I came back to New York City with? School starts on Sept. 2nd.
Science and Technology Log
The goal of the New York Harbor School Adopted drifters is to follow the Gulf Stream up to and around the Hudson Canyon. Can they make it?
The Gulf Stream is a powerful ocean current that transports water from the Gulf of Mexico up the U.S. coast, past North Carolina, and then heads northeast across the Atlantic. It carries an incredible amount of water—about 100 times more than all the world’s rivers combined!
This current plays a massive role in shaping the climate and the ocean, affecting our lives on land culturally, economically, and environmentally.
It keeps Florida’s east coast warm and even helps places like England stay milder than they would be otherwise. The Gulf Stream also supports marine life by moving fish species that people rely on for food and the fishing industry. For example, some highly migratory species I mentioned in my last blog travel all the way to the Hudson Canyon from the southeast.
The Hudson Canyon is a massive underwater valley and the biggest submarine canyon along the U.S. Atlantic coast. The Gulf Stream’s warm, salty water can flow into the Hudson Canyon, affecting its temperature, salinity, and the marine life that lives there.
Another essential process associated with all this movement of water is ocean upwelling. When surface water gets pushed, for example, by wind action, deeper water rises to replace it. This deeper water is colder and packed with nutrients, which act like adding nutrients to a hydroponics tower, but for the ocean. Because of that, areas where upwelling occurs are usually some of the best fishing spots.
Such as the Hudson Canyon.
Drifter Buoy
The Adopt-a-Drifter Program has been around since 2004 and offers teachers ways to engage students in ocean observations from their classroom. I was lucky enough to deploy two of these data-collecting drifter buoys. The first I deployed as we steamed out of Miami and around the Keys—the other I deployed in the Gulf, near the Eastern Loop Current. The drifters transmit real-time data on ocean observations. This piece of scientific equipment measures the surface temperature of the ocean and is designed to measure other variables on the open ocean.
Fingers-crossed, our drifter buoys follow this stream from the southeast, into the Atlantic, and as far as it can go before washing up on a shore or becoming part of a marine habitat. They can last up to 450 days. We are about one to two weeks into this journey. Where will it go? Below is how Harbor School and Marine Affairs students can track.
Students are creating ArcGIS maps that predict its trajectory and data collection points. We will publish those at a late date.
The drifter is drifting.
Credit: ArcGIS Online made by Rob
As the drifter moves around, guided by ocean currents, measurements of atmospheric pressure, winds, wave height, and salinity can be taken. This data is collected by sensors in the drifter and transmitted to overhead satellites. The tracking of the location of these drifters over time can aid scientists in profiling ocean currents and allow students to engage in this work as well. Students can follow the drifter through its currents, watching for variables that move its course and monitoring surface temperature.
The design of the drifter is super important.
The instructions were rather hilarious, and they made me feel like one of my students. They were precise and instructed me not to touch anything or start fiddling with anything. They are delicately packed, ensuring safe deployment. A drifter’s drogue – a device that’s shaped in a sort of cone shape, also known as a sea anchor- extends 20 meters (or 65 feet) deep and is designed to move with the near-surface ocean currents. The drogue and surface float move together, connected by a long tether.
Refer to this link to see real-time data from our drifter at sea. FYI – it’s updated every Monday—great way to start the week.
New York Harbor Schools Drifter Program Link
Unfortunately, Drifter One has not yet made contact with the satellite….
Psych, it just linked up late Monday evening, August 25th, 2025, after our second drifter linked. This shows that patience, experimentation, trial and error, and science are held in high regard. I had a fear; I just tossed this instrument into the ocean and missed the mark on collecting data. It is quickly moving up the Gulf Stream along the eastern Florida coast, and the temperature has been chiefly constant.
The info below is correct to when the drifter linked up for us to track it.
Since my landing to shore and being back at school, the drifter has moved quite a bit.
This came online within a few days of launching it off the stern. It’s doing as we intended. Toss it near the Eastern Loop Current. Let it swirl around, and hopefully, it ends up in the loop and shoots back around the Keys and then shoots northward.
Info below is right when the drifter links up for us to track it.
Although this is still in the gulf, it seems to be doing as intended; joining the Gulf stream out of the loop.
Refer to this link to see real time data from our drifter at sea.
Students have already been tracking and have predicted where it’s going. They have done some lessons on currents, wind, and climate. The drifters are adding in that delivery. A prize will be awarded for the closest prediction.
New York Harbor Schools Drifter Program Link
Conductivity, Temperature, and Depth (CTD)
I want to preface this by saying that this instrument stressed me out. First, I kept saying “CDT”; that’s not what it’s called. In addition, it’s always good to put the watertight lid on the underwater camera.
The CTD instrument is a giant depth finder with several physical and chemical sensors – pH, temperature, salinity, oxygen, depth, fluorescence – that collects data at every station we collected fisheries data at throughout the Gulf. There are two main jobs to deploy this instrument: monitoring its deployment and retrieval, and then lab data collecting. However, in order for those tasks to be completed during stations, there is another widely important job done by the survey tech on board the Oregon II.
Preparing
- Remove caps to sensors
- Hook up camera
- Hook up light
- Remove pH sensor’s protective buffer solution
- Make sure all water pathways are open
Deployment
- Lift CTD into water.
- Hold at Surface, to allow the CTD to stabilize.
- Send CTD down to just above the sea floor.
- Reach just above the sea floor.
- Bring the unit back up to the surface.
- Wait for the lab to complete data collection before bringing it to the surface.
Cleaning CTD
- Clean with Fresh water thoroughly
- Take Camera and Light Off
- Put caps on instruments and sensors
- Put pH sensor in buffer solution
Data Collection & Review
This data is used alongside catch data collected on the fisheries surveys, allowing scientists to make connections between water quality and fish caught. This data can be used in stock assessments.
Water quality and marine life abundance is directly related; complexly I might add. Water quality and the survivability of marine species contributes to our economic, cultural, and public health.
Monitoring water quality at the stations that fisheries data is collected, aids in determining the complex factors of species abundance and health. Moreover, these data points can help determine potential threats and aid in management plans for both water quality and targeted species.
Career Pathways Blog
I just want to preface that I didn’t speak to everyone on the ship for an extended interview on career paths in these fields. The goal of outlining the people below is to offer insight into what deck, below deck and science teams do on a research vessel supported by NOAA. As they call them, the “white ships.” This aspect of the trip is invaluable information for students at New York Harbor School. There were so many people I won’t get to highlight in this final blog that are part of the team.
Due to our shift times and structure, often I wouldn’t see some people. Sort of like two ships passing in the night. For example, near the end of my journey, was the first time I spoke to my roommate for more than two minutes at 12am. I had all intentions of getting up earlier to chat with people, but to be honest, I was waking up at 10am each day. Unlike my usual 4 am wake up in Brooklyn.
James – my roommate – is a junior engineer on the ship. Engineers have a variety of roles on a vessel at sea. Long story short, they keep it moving and operational. I was nervous to bother James, even though he was one the most approachable people I’ve met. Didn’t wanna be the Teacher at Sea that kept the ship from being monitored.
James had the most fascinating story and traveled from New Orleans to Seattle, to Hawaii and now Mississippi; working on several different ships in the NOAA fleet. I am so grateful for him welcoming me into his space – a space that he and another NOAA fleet member share, James is regular on the Oregon II – being so kind, helpful, supportive, and considerate to me being foreign to this whole experience. We gave each other space, respected our shifts, our sleep, in passing had a laugh or two, and got to know each other in the time we had. He found out I danced, and we had a love for famous tap dancers from the 90s.
He liked the room warm, I liked it cold. Which is funny, because generally I don’t like the AC, but it was a hot one on the Gulf for sure while pulling up those longlines. I froze him out, and he sweated me out. This is a joke, it was a funny occurrence between us, and got us talking. Mainly, because I didn’t know how to change the temp, nor wanted to touch anything and break anything. Always good to ask for help when needed.
I wish I had more time to chat it up, but from what I gather, engineers on shift got some things to do. But glad we got some time near the end of the mission to get to know each-other. We are now facebook friends and look forward to staying connected.
Part of living on a ship with people, particularly strangers, is empathetic communication. Advice to young people, you never know who you are similar too, and share interests with until you talk to them, and give them time to tell their story.
Below are people who took 45 minutes or more to chat with me on their pathway to Oregon II. We sat and had a conversation, it wasn’t formal, and I took notes. I wanted our conversations to be organic, and I had a hard time not relating to everyone I talked to. I had to keep myself from chiming in and telling my story. Below is what they do, how they got there, the greatest part of the job, toughest part of the job and what they do in their off time. You will see some differences and similarities among them all.
Anyone seeking careers on and for the ocean, these are good perspectives to consider.
Gretchen – Senior Survey Technician
Gretchen manages all weather and oceanographic sensors on the ship, ensuring data accuracy across the board. It sounds simple, but as I learned, it takes specialized skills. She holds a B.S. in Biological Sciences and a Certificate in Environmental Science from Florida Atlantic University.
Gretchen’s journey in marine biology began at community college, with aspirations to work on white sharks. She interned in South Africa and studied in Florida, returning to Africa for shark ecotourism. She volunteered on sea turtle nesting and worked with the American Shark Conservancy, later studying blacktip shark migration. After COVID disrupted her master’s plans, she worked in the Everglades and pursued water quality initiatives, eventually becoming a survey technician at NOAA after multiple applications.
I first met Gretchen right after checking into my stateroom. Before we even left the dock, she was walking me through the CTD instrument.
We share a common thread—school wasn’t easy, and people told us to pick an easier path. Well, she made it to sea, and I made it as a teacher.
Advice? Compete with yourself, that’s what matters.
Her most important tool? A multimeter—she does a lot of electrical work to keep instruments running. She also blends her love for sharks with water quality research.
The hardest part of her job? Is balancing time at sea with a social life.
Off duty? She’s a beach bum, into arts and crafts, and a big fan of death metal.
Will Tilley – Earth and Resources Technology Contractor on Fisheries Surveys
Will assists with running longline surveys as a contractor for NOAA through Earth and Resources Technology. His role covers everything from prepping gear, coordinating volunteers, and collecting data during surveys, to processing the results afterward.
His passion for the ocean began at a young age when he visited NOAA’s lab in Pascagoula during a marine biology class. Inspired by the experience, he volunteered and demonstrated persistence in pursuing his goals, highlighting the importance of first impressions and networking. After joining a summer longline survey as a volunteer, he was invited back for more roles while still in school. Following some life changes, he returned to education and completed his B.S. in Marine Biology at the University of Southern Mississippi during the COVID pandemic. He gained valuable experience at the Gulf Coast Research Lab, working his way up from a research tech to positions in gillnetting, trawling, and plankton research, ultimately developing a love for juvenile fish studies and genetics projects.
His advice? Keep an open mind. Tunnel vision won’t get you far in this competitive field. Passion matters more than money, and persistence pays off.
His most important tools? Identification guides and fish ID charts—essential for accurate data collection.
The best part of the job? Is getting paid to do what he loves.
The hardest part of his job? Working in the heat and being away from family and the farm for months at a time.
Off duty? When he’s not at sea, he’s on the farm in Mississippi—a place he grew up and now manages. He loves fishing, hunting, and being outdoors. And if marine biology hadn’t worked out, teaching would have been his next path—sharing his love for the ocean with others.
Josh – Chief Bosun
Josh is the Chief Bosun on the Oregon II. Josh was somebody I talked with frequently on the trip. He was a wealth of information, and experience, and never turned down an opportunity to teach the Teacher at Sea.
Josh earned a degree in Marine Biology and started his career as a fishery observer in Alaska and the Gulf of America. “He started his career with NOAA as a contractor, collecting biological data on commercial fishing vessels. This job eventually led him to the Oregon II, where he was involved in a project that taught AI to identify fish caught on the NOAA SEAMAP groundfish survey.” As a fishery observer, he collected data on commercial boats, often spending up to 45 days at sea. Inspired by fellow NOAA staff who transitioned from observation to careers within NOAA, he pursued this path. Eventually, he became chief bosun, managing operations, overseeing the deck department, handling inventory, and serving as a liaison to maintain the chain of command.
His advice? He emphasizes the importance of being specific about your goals and pursuing them fully. Combining passion, skill, and opportunity can make a dream job a reality.
Favorite part of his job? Josh loves being on the water—the sunsets, the freedom, and the chance to fish whenever possible. Ideally, he’d like to sail and fish without working for anyone, but NOAA offered a way to combine his passion for the ocean with his science degree, even when not directly on the science team.
Toughest part of the job? His role required both planning and flexibility, because life on the water is full of unexpected challenges.
If it moves and shouldn’t? duct tape, if it doesn’t move and it should? PB Blaster
Off duty? Fishing on his off time gives him a sense of peace and escape from the world. He literally gets right on his boat after he gets back on land from the surveys.
Amy – Rotating Engineer
Amy is a Junior Unlicensed QMED who took the “hawsepiper” route—a non-maritime path into the work. She manages and maintains the ship’s engineering systems, including propulsion, electricity, potable water, toilets, lighting, and hydraulic equipment, ensuring the vessel can operate and the mission can happen. On NOAA diving ships, she’s also involved in hull husbandry and underwater maintenance.
Amy has a degree in Marine Biology and enhanced her skills through scuba diving. She obtained a captain’s license and has a strong connection to boats from her upbringing in the Outer Banks and New Hampshire. Recognizing vessels as vital for marine education, she gained experience working on yachts and leading expeditions before joining research vessels at NOAA, where there is a high demand for QMED positions.
Her Advice? Take the fantasy out of the idea and pursue the idea.
Her most important tool? A flashlight—for scanning and emergencies.
The most challenging part of the job? Understanding that machines have their own ways of working, and humans influence them. Balancing that dynamic requires clear communication and patience.
Off duty? Amy loves Frisbee, sailing, and swimming, and she encourages everyone to sail at least once. Her advice: never say no to opportunities. Research vessel work isn’t always glamorous—some tasks are more fun than others—but everything contributes toward the mission. She emphasizes removing fantasy from expectations and focusing on the experience itself.
Kristin – Fisheries Biologist and Survey Party ( Acting) Chief
Kristin is currently serving as the Field Party Chief (FPC) on this survey leg, coordinating logistics and ensuring the science team has everything needed to run the survey. She organizes the crew, manages tools, and liaises between operations and deck teams, adjusting stations as sampling dynamics require, and acts as the day watch lead. On other legs, she has also led night watches.
Offshore, Kristin manages the year-round logistics of the longline survey, reviewing and merging data to ensure accuracy after long days at sea. She contributes to SEDAR stock assessments for the Southeast, collaborating with various stakeholders to ensure that survey operations run smoothly.
Kristin’s early fascination with marine life was sparked by watching Jaws, which led her to extensively read about sharks and cultivate a passion for the ocean. Inspired by a high school biology teacher, she pursued a degree in biology and a chemistry minor at Virginia Tech. Her practical experience includes work at a biological field station, various tech roles in marine mammal research, internships focused on sharks in Panama City, volunteering on the Oregon II, and contributing to NOAA projects during the oil spill response. These experiences enhanced her appreciation for applied science and NOAA’s mission-driven initiatives.
Her Advice? Cooperation, patience, and interpersonal skills are essential for navigating life at sea and on land.
Best part of the job? She enjoys the excitement of surveys—there’s always the chance to encounter something new at sea.
Most important tools? Zip ties and duct tape, plus a positive attitude.
The toughest part of the job? Is being away for extended periods at sea and navigating the many stakeholders in the world of fisheries surveys.
Off duty? Kristin enjoys Mardi Gras, crafting glittery projects, baking (including sourdough), and attending live music events. She’s honest about the competitive nature of the field, emphasizing that pursuing a career in marine science requires determination, flexibility, and the willingness to accept that things don’t always go as expected.
Personal Log
This will probably be one of my last blogs floating and rolling in the Gulf. Moreover, it’s also in part reflecting a week after I returned. School has started, and I’ve already started using things I’ve gained – both professionally and personally – while being a Teacher at Sea.
I was pampered with bright skies and calm seas 90% of the time. It got a little rocky for a few days but I was able to utilize my sea legs. As this journey unfolded it reminded me of living in New York City. Although it’s a vast city, we are kind of all on top of each other trying to make it through the day with a mission ahead of us. Being at sea taught me to be humble, and grateful. Not that I wasn’t before, but it made me cherish it. There was a calmness at sea, despite the short stint of the rolling waves and the ship swaying. I know what people meant, when they said they loved doing what they do. Although being at sea, away from people on land, the work of this ship has an organized chaos that brings peace to one’s soul.
Especially with those that are doing it because of NOAA’s mission and goals. Its been interesting describing my experience. I feel people want me to complain or describe how hard it was to be in the Gulf; in the heat, on a ship, doing something I never did before, with strangers, fishing for sharks, handling sharks, and the list can go on. But to be honest, it wasn’t hard at all. It is, but it isn’t.
Yes all those things are hard but it all makes sense why they have teachers go on these missions. We have a growth mindset, or most of us do, to keep learning and challenging ourselves to evolve with the times. I’ve been teaching for 13 years. If I don’t change, my students will suffer. Just like communities at sea on Oregon II, we need to work together and communicate. Especially, when a larger mission is at stake like NOAA’s.
This experience at sea reminds me of teaching; you need to be able to change, adapt, and be teachable. To be honest, my observation is, being on the ship in the middle of the Gulf, everyone needs to be like that. As I said in one of my earlier blogs, we can learn lots of things from people who work on the NOAA “white ships.” That mindset can translate. Nothing says, flexible, compassionate and approachable like people on a ship together for a couple of weeks monitoring our natural resources. Anything can happen and you need to be prepared for it. This experience reminded me of commuting by bike to work. You can get comfortable, but the world says, slow down and pay attention. Anything can happen at sea, anything can happen on land. Pays to be kind, teachable and adaptable. This experience reminded me of that motto.
It’s been a challenge. A challenge well expected, welcomed and enjoyable. I think that’s one thing I would like to impart from my blogs, to my colleagues and students. Never turn down opportunities to learn, we don’t know it all, and you don’t know where experiences could take you. This was hard but an open-mind and humility made it easier.
This journey has continued my route I’ve been engaged in for the last few years. I was asked to start a course at New York Harbor School, and experiences like these enhance myself as an educator and the community I serve. Hopefully, this journey hooks some folks – colleagues and students – to be inspired like I have throughout this journey. Moreover, I’m looking forward to reading next year’s Teacher at Sea blogs.
I welcome any chance to do this again. I wonder if my students would jump at the chance?
Full transparency and sort of tells the whole story of these blogs; trying to reach students with valuable information for their future and interests. Moreover, this experience strengthened my knowledge and skills to do so. The video has been edited. I missed catching the long line with the grappling hook a few times. Don’t believe all the pictures and videos. Beyond the photos are people trying and often failing. The best way to learn something is by doing and learning from others. We all make mistakes, and it’s not the end of the world. However, at sea, although mistakes happen, it’s a time of reflection because sometimes when doing science on a ship at sea, it is best not to make mistakes. I made mistakes while on the trip, I asked for help and guidance.
Final words for students:
Fear isn’t always a bad thing if its coupled with an attitude of open-mindedness and a teachable attitude. Like Amy said, take the fantasy out of the idea.
You are asking great questions. Answers are in the blogs; if I missed them, I will answer in class.
Photo courtesy of New York Harbor School.
