Cheyanne Vanderdonckt: The Survey Begins, July 30, 2026

NOAA Teacher at Sea

Cheyanne Vanderdonckt

Aboard NOAA Ship Oregon II

July 27 – August 12, 2026

Mission: Shark/Red Snapper Bottom Longline Survey, Leg 1

Geographic Area of Cruise: Western North Atlantic Ocean

Date: July 30, 2026

Latitude: 27° 40.261’ N

Longitude: 80° 12.372’ W

Weather Data from the Bridge: Southwest winds 15 to 20 knots. Seas 2 to 3 feet.

Science and Technology Log

I promised more details of how the longline survey is carried out and I will do my best to describe it here. A long fishing line (about a mile long) is equipped with weights and buoys at each end, along with a weight in the middle. The buoys also have a “high flyer,” which is a marker that sticks up off of the buoy so that we can see where it is. Attached to this longline are 100 shorter lines called “gangions” (say “GAN-jin”) with a number and a baited circle hook. (Circle hooks are used because they cause less damage to fish than “j-hooks.”) The longline is deployed, then given about an hour to “soak,” before we go back and start reeling it in.

How do you manage a mile-long line with 100 shorter lines attached without getting everything tangled? It’s a careful and orderly — albeit fast-moving — operation. The hooks are set up in barrels with notches that keep them lined up and ready to be attached to the longline as it is let out off the stern (back of the ship). Later when the line is hauled in, somebody will place them back in order to be ready for the next station. When every element of this set-up — high flyers, weights, and every single hook — is either deployed (thrown off the stern) or hauled in at the bow (front of the ship), somebody is ready at the computer to record the exact time, latitude, longitude, the state of the bait, whether there is a fish, weather conditions, etc. for each hook. Fortunately, the computer records most of this automatically so there are only a few keys to push when each piece is either deployed or hauled in.

At our first station we caught four sandbar sharks (Carcharhinus plumbeus). When a shark is caught, it is a carefully coordinated operation to haul it up in a “cradle” (a big net with a stiff metal frame) using a crane. There is an operator working the crane, two people holding onto ropes attached to each side of the cradle, and at least two people to manage the shark’s head and tail while measurements and samples are taken. They are also communicating with the bridge where the officers driving the ship have to maneuver it to help get the cradle into position. The shark’s length is measured in millimeters and a small tissue sample is taken from its fin. Most sharks are also tagged, which allows scientists to track movements and examine growth rates. When smaller fish are caught, they are brought onto a measuring board in the middle of the deck. (More pictures and information about all of this will be coming in future posts!)

Wildlife Spotted

One afternoon when the skies cleared after some rain, a pair of brown boobies (Sula leucogaster) came to rest on the weather station.  A fellow science volunteer alerted me to their presence and we spent some time watching them spin around. To my amazement, they were still there hours later. I spent some more time watching them with the nearly full moon behind them.

Two brown boobies (Sula leucogaster) perched on the ship for hours

Simple Machines on a Ship

I have a student who got really interested in simple machines this year after, so I thought I would investigate as many of the simple machines as I could find on the ship. Simple machines are devices with few or no moving parts that make work easier. There are six basic types: wheel-and-axle, inclined plane, lever, pulley, wedge, and screw. A good example that we have at my school is a ramp, which is an inclined plane. I couldn’t carry a shopping cart full of science supplies up the stairs, but the ramp — along with the wheels and axles on the cart  — allows me to push a heavy load up to the second floor relatively easily. Likewise, you probably can’t pick up your best friend, but if you get on a see-saw (a type of lever), you can send him high up into the air. Simple machines can be used on their own or in combination to make work easier. 

There are many pulleys on the ship. They help make it easier to lift heavy objects. Winches are used to make it easier to haul in lines and to adjust the length of cables on cranes. Winches are essentially made of a wheel and axle and a lever. The rope or line wraps around the wheel as it turns on the axle. The handle acts as a lever that makes it easier to turn the wheel. The reel on a fishing rod acts as a winch when you turn the crank to reel the line in. Motorized winches use motors to turn the wheel.

A screw is a simple machine that is basically an inclined plane that wraps around a cylinder. If you have a screw at home, you can put your finger at the tip and follow that one groove all the way to the head. Think about cars driving up a circular ramp in a parking garage: they move on a continuous inclined plane that spirals around from bottom to top. The ship has engines that turn a big propeller and that propeller is a giant screw that pushes against the water to make the ship move forward. Although the blades of a propeller are separate rather than one continuous plane, they operate on the same basic principle as a screw. 

Obviously I can’t see the ship’s propeller because it is under the water, but I asked the crew to tell me more about it. Oregon II has a variable pitch propeller which means that they can change the angle of the propellers relative to the axis that they spin around. The angle of this pitch changes the amount of work the screw can do with one full rotation. So a 1-foot pitch means that turning the screw one full rotation would theoretically move the ship 1 foot (This can vary depending on the other forces acting on the ship, such as currents and wind). Oregon II’s propeller has a maximum pitch of 6 feet. Naturally, I had to ask why you wouldn’t just always use the maximum pitch to go as fast as possible. It is like the gears on a bike or a car. If you have a bike with gears, you have probably found yourself pedaling furiously at some point, wearing yourself out without going any faster. If you choose the right gear, your energy will not be wasted. The officer driving the ship determines which pitch is appropriate for the conditions and the desired speed.

These are some of the simple machines I’ve discovered so far. Look around you and see what simple machines you have at home, work, school, or in the community. How do they make work easier? Can you use some objects in your house to make a simple machine?

Resources from NOAA:

• NOAA has a great handout for students on the six basic simple machines at https://oceanexplorer.noaa.gov/wp-content/uploads/2025/04/simple-machines-handout.pdf (Teachers and parents: After introducing the basics of simple machines, look up some “Rube Goldberg” machine videos and challenge students to identify the different simple machines involved!) 
• Here is a lesson from NOAA that is designed for middle schoolers but which could easily be adapted for other levels in which students use basic materials to design a robotic arm using simple machines: https://oceanexplorer.noaa.gov/lesson/underwater-robots-simple-machines/

Personal Log

I am settling into life aboard ship. Because I get off duty at midnight and still need time to shower and wind down a bit, I am waking up later in the morning than I am used to in order to get a full night’s sleep. (I always tell my students how important sleep is and I like to practice what I preach.) This means that I wake up after breakfast and just about an hour before lunch is served. At home I tend to eat something on the sweet side for breakfast, but I am getting used to starting my day with a hearty meal of pulled pork, cod, or fried green tomato sandwiches. I was told to expect good food and I have not been disappointed. Everything is fresh and delicious! As you can imagine, the people aboard all have great stories and interesting backgrounds. I hope to introduce you to some of them in future posts.

As we had three days of transit time without much for me to do, I got to spend a lot of time just looking at the water and the sky and this is truly a gift. Everyone should have the opportunity to see and experience this. Earlier this summer I participated in a teacher training course with the Chesapeake Bay Foundation. I enrolled thinking it would be another way to enhance my scientific understanding of our local watershed and it certainly did that. However, the instructors and community partners also took the time to let us simply experience being in nature and encouraged us to let our students do the same. We visited an urban farm with a summer camp (and soon to have an all-outdoor year-round preschool program!) and the staff talked about how they incorporate nature to help students with emotional regulation and other skills that develop the whole child. They emphasized that these are things we can do anywhere outdoors. We don’t need to go off to the wilderness or even a park. In fact, the more we can get children to pay attention to the nature that they see everyday in their yard, neighborhood, or schoolyard, the deeper their connection will be. This will in turn drive their curiosity and their desire to learn more. 

I am experiencing this myself aboard ship. Although I have work to do, taking some time to just experience what is around me with all of my senses helps to calm me, refresh me, and make me even more eager to keep learning. Being at sea is a new experience for me, but I can tell that even the veterans aboard still carry that sense of awe. People still come out to watch the sun set over the water and they still get excited to see dolphins surface. I wrote in a previous post about the teacher’s charge to help students feel emotionally secure so that they can learn. Finding ways to let them experience amazement at our world is another dimension to this. In first grade students learn about the phases of the moon and I always encourage my students to look for the moon throughout the night and day. It is notoriously hard to get a good picture of the moon with a cell phone, but I took this video before putting my phone away and just looking.

Ship Rules

When I return to my classroom in August, I will spend a lot of time teaching my students about the rules of the school and the classroom. Of course, this is not always popular, but I do my best to explain the purpose of each rule and invite students to think about what could happen if we don’t follow it. (Admittedly, we sometimes get silly with these scenarios.) Children often feel bombarded by rules and that they are uniquely burdened by them. So I think it’s important to share examples of rules adults have to follow, as well. I’m going to have lots of great examples of rules Ms. Vanderdonckt had to follow while at sea. When you’re on land and close to the nearest hospital, your health and safety might be your own business. But on a ship far from shore, your health and safety affects everyone. If somebody were to be careless and get injured, it could jeopardize the entire mission that has been so carefully planned. 

There are rules that are written and taught explicitly and then, of course, there are unspoken rules of etiquette and society that we just have to pick up on. This is something many neurodivergent students can struggle with. Special educators use tools like social stories to help them understand various social scenarios and explicitly teach expectations. Being in a completely different type of social environment is forcing me to simply ask people about etiquette and expectations. This is another dimension of my learning experience that I wasn’t even expecting. I knew I had a lot to learn about science and fishing, but I’m learning just as much by asking somebody, “Hey, if you’re working in your office with your door open does that mean it’s okay to ask a question?” Fortunately, people are very kind about teaching me the ropes. 

Accessibility Corner

As a special educator, I’d like to share some insights and tips with teachers and caregivers that I am thinking about on my journey. As parents do shopping for the new school year, a big item on the list is new shoes. Many young students and/or students with fine motor challenges have difficulty tying shoes on their own. Velcro can be a great help but what if the pair your child is begging for have laces? My packing list suggested slip-on shoes because on a ship you need to get in and out of your shoes frequently and quickly. I don’t find most slip-ons comfortable so I’m using these elastic laces for my favorite sneakers. The bumps help me adjust them to my perfect comfort level. These could be great for students (or adults) who have trouble tying independently or who have sensory issues requiring fine tuning of laces. There are many brands, sizes and colors available.

Did You Know?

Sargassum is a type of floating brown algae. It can provide shelter and food to many types of marine life. It plays an important role in supporting life in the Atlantic Ocean but it can also cause issues when a lot of it washes up on shores at once. To learn more about sargassum, visit https://oceanservice.noaa.gov/news/sargassum/