Geographic Area of Cruise: Gulf of Mexico/Atlantic Ocean
Date: August 29, 2023
Latitude: 39° 9′ 0.6084” N
Longitude: 123° 12′ 28.0332” W
Air Temperature: 29.4° Celsius
Science and Technology Log
Sharks use many senses to hunt their prey. For long range hunting, they use smell and detecting pressure changes, similar to hearing. They are famous for having a keen sense of smell. Some studies conclude that they can, in theory, detect blood at 1 per 20 million parts in water. So, they clearly use smell to hunt. They also have a keen sense of “hearing.” They can detect some low frequency sounds, the kind made by injured fish, from a kilometer away.
The eye and amupullae of Lorenzini of a sandbar shark
As sharks get closer to their prey, they use their eyesight. While they see in black and white, they can see well unless it is nighttime or if the water is cloudy.
They also have a sense that humans do not. They have a lateral line along the side. This is a series of canals that helps them detect vibrations in the water.
As the shark closes in on the prey, sharks engage their ability to detect slight electrical impulses, electrosense. For this they use their ampullae of Lorenzini. These are pores on the skin that lead to canals filled with a conductive gel containing keratan sulphate. They can detect the electrical impulses that are given off by other fish. Some sharks use this sense to find fish that are hidden under sand on the ocean floor.
Shark skin cross-section showing keratan sulphate and ampullae of Lorenzini
Sharks may use their sense of touch by bumping into a potential prey target. Finally, they might use their sense of taste to decide if their target is indeed food.
Personal Log
As I return to my own teaching position in a classroom, I continue to reflect back on how everyone on board NOAA Ship Oregon II took all of the volunteers under their wing to “show them the ropes,” and teach them more than they could have learned in any classroom. It was clear that the whole crew was proud and eager to share their own specialty with us. For me, I was poking my nose into every nook and cranny, looking for stories to include in my blog. I was always welcomed with a smile and regaled with great stories. Far too many to include in my blog. I was impressed with the detailed and patient answers to my basic questions. This included not only the professional NOAA scientists and crew but also the other volunteers on board as I was the only one on the science crew who was a novice in marine biology. So, thank you Josh, Cait, Hannah, Macie and John.
But I was not the only one to be tutored in the details of life on the ship. Trey Driggers spent many hours discussing shark science with the other volunteers. The NOAA Corps members joined in the hauls and shared their experiences with the other volunteers. Their friendliness, openness and supportive presence added a lot to the team. They shared their own career journeys and at least one of the volunteers is seriously considering joining the NOAA Corps. John Brule, a volunteer, was working on his dissertation on parasites. (I am a convert. Parasites are fascinating and well deserving of detailed scientific study.) He engaged with the other volunteers on wide ranging subjects and guided them on dissections.
Doctoral candidate John Brule guides undergraduate volunteer in removal of shark gills
The fishing/deck crew readily discussed not only their jobs and experiences but also shared their knowledge of fish behavior and how weather conditions affect the likely catch.
Storm clouds gathering over the ocean
In the end, of all the amazing things I experienced, my most enduring memories are of people sharing their love of their chosen field, reaching out to guide and teach the novices. It is really people, connecting to others, that makes an education impactful.
Mission: Acoustic Trawl Survey (Leg 3 of 3) Geographic Area of Cruise: Pacific Ocean/ Gulf of Alaska Date: Saturday, August 19, 2023
Weather Data Lat 58.1 N, Lon 150.1 W Sky condition: Partly Sunny Wind Speed: 5.81 knots Wind Direction: 346.98° Air Temp: 12.91 °C
Science Log
The last trawl sample that the OscarDyson’s crew and scientist’s took was in deep water with a Methot net, named after Dr. Rick Methot, the NOAA scientist who developed it. This type of trawl net slows down the water as marine organisms tumble into it, so their delicate bodies are not crushed. The codend looks a lot like what you would see in a plankton tow, only it will catch a lot more organisms.
Michal Levine as he removes the codend from the Methot trawl net
Sub-samples are taken from what the Methot catches. Some krill is preserved and sent back to NOAA in Seattle for identification and analysis. On board, the krill are weighed and counted. The krill and other organisms are small, so the tools used to sort them are designed for capturing and moving small organisms.
The tools used to sort krill
Krill
After the last krill was counted and weighed, the science team quickly jumped into action cleaning up the Fish Lab. Yes, I am including this in the science log, because cleanup is an important part of science that many high school students seem to forget.
Totes and baskets were scrubbed and then washed with a pressure hose
The crew had unreeled the trawl nets and were getting ready to ship them to Washington state.
Trawl nets neatly stacked on deck
Personal Blog
Being a Teacher at Sea on the Oscar Dyson was a fantastic way to end the summer for me. Shortly I will be heading back to Anchorage where high school has already started and students have already been to my class with a substitute teacher. I look forward to teaching school, but am so thankful for the opportunity to have this adventure.
It has been so wonderful working with the science team on this cruise. After so many unforeseen delays the objectives were met through team work and the organizational skills of the lead scientist Taina Honkalehto.
The people on this ship really enjoy working on the ocean. Whether it is captaining the boat, engineering, the mess, to programming echo sounders, identifying species of fish, weighing and sampling them, they all love what they do. They also really care about the work that they are doing, the health of the ocean, and they want to support the people working and living with it. Also, there is a unique brand of humor that comes with working together for extended periods of time at sea. You just have to laugh at strange fish that come aboard and wonder at the beautiful sunsets or northern lights.
A Grenadier fishSunset at Montague islandAurora from the aft deck
On the bridge I found the ship’s communication flags. These flags are a way to communicate with other ships if the radios are not working or to hang on holidays with a message. When I was a kid back in Ketchikan, Alaska, I admired the flags so much I would draw cartoons with flag messages. So, to NOAA, the science team and the crew of the OscarDyson…
T
H
A
N
K
S
May the seas lie smooth before you. May a gentle breeze forever fill your sails. May sunshine warm your face, and Kindness warm your soul. – An Irish Sailor’s Blessing
Allow me to provide a summary of the survey and what was accomplished on this leg. June 9, we departed from Galveston and made our way out to sea. The survey started the next day. We traveled 1,866.6 nautical miles (or 2,148.04 miles) along the continental shelf. That’s like driving from Florida to California! On this leg of the survey we (they) deployed 169 cameras, 22 CTDs, 13 bandit reels, and 12 XBTs (still don’t know what that is). We collected 15 eDNA samples (go Caroline!) and mapped 732 nautical miles. This year’s survey started in April, and this was the last leg. We’re making our way back to Pascagoula (yes, I can pronounce it now), a near 28 hour transit. We will be docking and unloading at the Gulf Marine Support Facility. The next survey on the Pisces starts next week, deploying Remote Operated Vehicles (ROVs). The science never stops, folks.
The SEAMAP Reef Fish Survey began as a fish trap survey in 1980’s and transitioned to a video survey in 1991, and the technology continues to evolve year after year. This over thirty years of data provides abundance and distribution information on Gulf of Mexico reef fish. Reef fish abundance and size data are generated directly from the videos. So though the work feels slow, it is essential. An index of abundance for each species is determined as the maximum number of a fish in the field of view in a single video frame. Here are some snippets of the footage recording during our trip.
A school of amber jacks recorded on the camera array.Marbled grouperSnappersA stunning tiger shark
*NOTE: The tiger shark shot was not from our leg of the survey, but too cool not to include.
This survey combined with all research approaches (i.e. traps, bandit reels, eDNA) allows for a comprehensive stock assessment of the fish populations in the Gulf of Mexico. Stock assessments collect, analyze, and report demographic information to estimate abundance of fish, monitor responses to fishing, and predict future trends. This significant data is used in managing fish populations and preserving our oceans resources.
Mapping Operations
One of the scientific operations I have not yet mentioned is bathymetric mapping. Senior Survey Technician Todd Walsh works the night shift running the mapping show – multibeam echo-sounder hydrographic survey to be precise. An echo-sounder determines the depth of the seafloor by measuring the time taken for sound echoes to return. The technology is impressive. Todd is straight up 3D mapping the bottom of the ocean. He watches it come to life, line by line. That’s freaking cool. I see you, Todd.
Though mapping occurred overnight, Todd was sure to point out any interesting finds in the morning. The Pisces mapped an area south of the Flower Garden Banks National Marine Sanctuary and found an impressive geological feature hosting two mud volcanoes. A mud volcano is a landform created by the eruption of mud or slurries, water and gases. Man, the ocean floor is like a whole other world. It was so interesting to watch the mapping unfold right before your eyes. Maybe the seafloor will be my next destination.
The long days take their toll. This crew has worked so hard and is ready to decompress. Some have been out here for months and are counting down the days. You really can’t blame them. You ask anyone out here, “how many days?” and you will hear “three days and a wake up.” “Two days and a wake up.” “One day and a wake up.” They have all earned some serious rest and recovery, and long awaited time with their families and friends. I mean, I’d like to call them friends, but I get it, you can have lots of friends.
I cannot believe it is already my last day out here. Though each day felt like 100 hours, somehow it still flew by. The last CTD hauled out of the water last night marked the end of the SEAMAP survey. I cheer and shout in solitude and run round giving high fives. Good work, everyone! They are all exhausted, but certainly excited and proud of the work they have accomplished. Listen guys, if you aren’t proud, let me remind you that you most certainly should be.
The last day is the first sunrise I didn’t catch – sleeping in was just too tempting. Friends at home have to literally drag me out of bed to catch a sunrise, but out here, it just feels right. We ease into our day and clean and prepare the working spaces and equipment for arrival. I mop. That’s about all I am good for. TAS card. I spend the day roaming as usual, this time reflecting on my arrival and experience at sea. Time slows down even more (if you can believe that) when it’s your last day. I do my best to take in every last moment. I balance the day with some relaxation, a nice game of “bugs” with my pals, a good deal of snacking, revisiting the views, and saying my goodbyes.
Though thrilled to be heading back, most everyone finds their way outside for the last sunset. I soak up every colorful ripple. Mother Nature does not disappoint in those last hours. Dolphins put on a show jumping out of the water at a distance. The stars start to appear, not a cloud in the sky. I stargaze for what felt like hours. We’re greeted by multiple shooting stars. These are the moments I live for – when I feel most at rest. I am overcome with humility and gratitude.
Some of the most memorable moments.
I consider myself lucky to have met and worked with the Pisces crew. Every person on this trip has left an impression on me. From day one, the crew has been so welcoming and willing to let me participate, committed to providing me an exceptional experience. For that, I am grateful. I had so much fun learning from each department and goofing off with the best of them. The work that goes in to the research is remarkable, from navigation, the science, to vessel operations. I learned much more than expected. It’s hard to summarize my experience, but here are some valuable takeaways, in no particular order.
NOAA research is vital in protecting our most precious natural resource.
Ocean conservation is the responsibility of every one of us.
Remember why you do the job you do and the impact you have.
Never pass up an opportunity to learn or do something new.
Everyone should have the opportunity to connect to our natural world.
You can never see too many sunsets.
Expose your toes to the great outdoors.
I can’t express enough how grateful I am to have been selected for the NOAA Teacher at Sea Program and be a part of its mission. The experience was so much more than I could have even imagined. Participating in the research was so rewarding, and offered valuable insight into fisheries research and scientific operations. The questions never stopped coming. The novelty of the work kept me hooked. If there is one thing above all that I took away from this trip is – never stop learning. Continuous learning is what enhances our understanding of the world around us, in so many ways, and why I love what I do.
I look forward to sharing my experience with the many students I have the opportunity to work with, and hopefully inspiring them to continue to learn and grow, building a better understanding and appreciation for our planet. NOAA, your investment in me will not go unnoticed. The biggest THANK YOU to all involved in making this experience a reality.
We ride together, we die together. Pisces for life. – Junior
Latitude: 26.17 Longitude: 81.34 Temperature: 89° F Wind Speeds: ESE 11 mph
Personal Log
Our last day on Oregon II together was filled with lots of hugs and new Facebook friends. I left Pascagoula, MS and arrived back in Naples, FL around midnight. It was nice to be back in my big bed but I really missed the rocking of the ship to put me to sleep.
The next morning I was greeted at my classroom door at 7 am by my students who had a lot of questions. They all had been following along on my blog and have seen a few pictures that were posted. I made a PowerPoint of pictures from the ship so they could see what my living and working arrangements were like. The funniest part was when I showed them my sleeping arrangements. They thought it was great that I was on the top bunk, but surprised at how small the room was and how I didn’t have a TV. (I think some thought it was more like a hotel room – boy were they wrong.) The part they were shocked the most was the size of the shower and the toilet area. I was able to organize my pictures into folders of the same species. I was then able to show them all of the wonderful pictures that the crew, scientists, volunteers and I had taken during our excursion.
The following week a reporter from the Naples Daily News and her photographer came to my classroom to interview me about my trip as well as what the students were learning in AICE Marine.
I was able to bring back with me the one of the 12 foot monofilament line and hook that is attached to the longline. I was able to explain to them how the lines are attached and the process for leaving the longline in the water for exactly an hour. We also started a lesson on random sampling. I discussed how the location for the longline deployment is chosen and why scientist make sure they are randomly chosen.
My biggest surprise was a package I received from my Uncle Tom a few days after I returned home. He is a fantastic artist that paints his own Christmas cards every year. In the package I received he painted the sunset picture I had taken of Oregon II when we were docked in Galveston. It is now hanging in my classroom.
NOAA Ship Oregon II, September 16, 2019. Photo by Kathy Schroeder.
Painting by my Uncle Tom Eckert from the picture I took
In December I will be presenting about my experiences with
NOAA. Students, their families, and
people from the Naples community will all be welcome to attend. I will be working with fellow colleagues from
other high schools in Naples that also teach marine to spread the word to their
students. My goal is to get as many
students who are interested in a marine career to attend the presentation so
that going forward I will be able to work with them in a small group setting to
help with college preferences and contacts for marine careers.
I can’t thank NOAA enough for choosing me to participate as
the NOAA Teacher at Sea Alumnus. The
experiences I have received and the information I will be able to pass along to
my students is priceless!
Science and Technology Log
My students have been able to see and touch some of the items I was able to bring home from Oregon II that I discussed. I was able to answer so many questions and show them a lot of the pictures I took. We are anxiously awaiting the arrival of a sharp-nosed shark that is being sent to us from the lab in Pascagoula, MS. For students that are interested I will be conducting a dissection after school to show the anatomy of the shark as well as let them touch and feel the shark. (An additional blog will be posted once the dissection is competed)
Geographic Area of Cruise: Pacific Northwest (Off the coast of California)
Date: 9/7/2019
Weather Data from Marietta, GA:
Latitude: 33.963900 Longitude: -84.492260 Sky Conditions: Clear Present Weather: Hot Visibility: 9 miles Windspeed: Less than 1 knot Temperature: Record high 97 degrees Fahrenheit
It’s been weeks since I disembarked in Newport, Oregon and left Fairweather behind. I still feel like I’m a part of the crew since I was welcomed so seamlessly into any job I tried to learn while Teacher at Sea. However, the crew is still working away as I continue to share my experiences with my students in Marietta, Georgia.
As I have been working on lessons for my classroom, I keep finding fun facts and information about ship life that I didn’t share in my previous posts. So, here is my final post and some of my most frequent questions by students answered:
Question 1: Where did you sleep?
I slept in a berth, I had a comfortable bed, drawers, a locker, and a sink. There was a TV too, which I never watched since a) I like to read more than watch TV and b) the ship would rock me to sleep so fast I could never stay up too long at bedtime!
Bunk
Sink
Door
My room aboard Fairweather
Question 2: What was the weather like when you were at sea?
Sunny!
Cloudy and foggy
Clear at sunset
Windy days!
Windy nights!
Really foggy some nights!
Some days (and nights) so foggy that they had to use the fog horn for safety!
Question 3: What animals did you see?
I highlighted animals in all of my posts and linked sites to learn more, go check it out! There is one animal I didn’t include in my posts that I would like to share with you! The first is the California Sea Lionfound in the Newport harbor. You could hear them from across the harbor so I had to go check them out!
See the video below:
California Sea Lions
Question 4: What happens next with the hydrographic survey work?
This is one of my favorite questions from students! It shows how much you have learned about this very important scientific work and are thinking about what is next. The hydrographic survey maps are now in post processing, where the survey technicians, Sam, Bekah, Joe, and Michelle are working hard to make sure the data is correct. I shared in a previous hydrographic survey blog an example of Fairweather’s hydrographic survey maps, I also checked in with the USGS scientists James Conrad and Peter Dartnell to see what they were doing with their research and they shared some information that will help answer this question.
From Peter Dartnell, USGS research scientist: “Here are a few maps of the bathymetry data we just collected including the area off Coos Bay, off Eureka, and a close-up view of the mud volcano. The map off Eureka includes data we collected last year. I thought it would be best to show the entire Trinidad Canyon.”
From James Conrad USGS research geologist: “Here is an image of a ridge that we mapped on the cruise. The yellow dots are locations of methane bubble plumes that mark seafloor seeps. In the next few weeks, another NOAA ship, the Lasker, is planning to lower a Remotely Operated Vehicle to the seafloor here to see what kinds of critters live around these seeps. Methane seeps are known to have unique and unusual biologic communities associated with them. For scale, the ridge is about 8 miles long.”
Bathymetry map showing ridge
So, even though the research cruise is over, the research and follow up missions resulting from the research are ongoing and evolving every day.
Question 5: Would you go back if you could be a Teacher at Sea again?
YES! There is still so much to learn. I want to continue my own learning, but most importantly, lead my students to get excited about the important scientific research while keeping the mission of the NOAA close to their hearts: “To understand and predict changes in climate, weather, oceans, and coasts, to share that knowledge and information with others, and to conserve and manage coastal and marine ecosystems and resources. Dedicated to the understanding and stewardship of the environment.“
Fair winds and following seas Fairweather, I will treasure this experience always.
