Author: gthomastas2023

Alaskan born and raised. The daughter of a teacher and a fishermen. I am a teacher at Bettye Davis East High School.
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Germaine Thomas: Meet the Teacher at Sea on NOAA Ship Oscar Dyson, August 9, 2023

NOAA Teacher at Sea

Germaine Thomas (she/her)

Aboard NOAA Ship Oscar Dyson

August 7 – August 21, 2023

Mission: Acoustic Trawl Survey (Leg 3 of 3)
Geographic Area of Cruise: Pacific Ocean/ Gulf of Alaska
Date: Wednesday, August 9, 2023

Weather Data
Lat 58.16 N, Lon 148.97 W
Sky condition: Cloudy
Wind Speed: 2.88 knots
Wind Direction: 301.28°
Air Temp: 12.44 °C

Personal Log

School will soon be starting in Anchorage at Bettye Davis East High School. I will not be in school for the first three days because I am having fun on a teacher’s field trip. Good things come to those who apply for it. I applied and got accepted on this cruise before the pandemic, but life and safety concerns made my journey about three years longer. Finally, I am living the dream and out in the Gulf of Alaska surrounded by pure ocean, whales, seabirds and catching lots of fish.

selfie of Germaine on a kayak (too close to see the kayak, but we can see she's surrounded by water, with some forested shoreline beyond.) she wears a life jacket, sunglasses, baseball cap. A small white dog peers over her left shoulder.
Kayaking in Prince William Sound with Loki the dog. My family commercial fishes for Sockeye Salmon in Main Bay.

My name is Germaine Myerchin Thomas. I was born and raised in Ketchikan Alaska. I am the daughter of a fishermen and a teacher. I, myself, am a teacher, and I commercial fish in Prince William Sound. So far I have spent most of my summer fishing in the Eshamy district about 45 miles outside of Whittier. It has been a cold dark wet summer( the word “summer” is debatable). Recently, I jumped from Set Net fishing for Sockeye (Red) Salmon, in small open skiffs, to the fabulous NOAAS Oscar Dyson.

Just visualize the ice sculptures, swimming pool and yoga studio on the Lido Deck… nope! The NOAAS Oscar Dyson is a research vessel that you can find more about by clicking the link above. Currently there are 24 crew members and 8 scientists. The ship is outfitted to conduct an acoustic trawl survey, but there are other scientific projects going on during this leg of the cruise. It, also has great food and two gyms. The waves rolling under the hull of the boat make the feel of gravity extra strong while trying to do push ups.

Already I have discovered that working out in the ocean requires being very flexible and adaptable. Sometimes the weather or wildlife can delay setting out the trawl net. Last night the boat was surrounded by whales (Fin and Sei), marine birds (Fulmars, Shearwaters and Black footed Albatross) all enjoying the abundant fish that we wanted to catch in our trawl net. Naturally we just let the animals enjoy the abundance while the scientist patiently waited for their turn in another area.

When the cruise ends I will head back to Anchorage and teach high school, chemistry, oceanography, and marine biology. I am really looking forward to meeting my students for the first time. I hope that I might be able to Zoom into my classroom and share what I am doing while I am out here.

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Germaine Thomas: The Adventure Begins Aboard NOAA Ship Oscar Dyson, August 7, 2023

NOAA Teacher at Sea

Germaine Thomas (she/her)

Aboard NOAA Ship Oscar Dyson

August 7 – August 21, 2023

Mission: Acoustic Trawl Survey (Leg 3 of 3)
Geographic Area of Cruise: Pacific Ocean/ Gulf of Alaska
Date: Monday August 7, 2023

Weather Data
Lat 58.31 N, Lon 151.58 W
Sky condition: cloudy
Wind Speed: 12.43 knots
Wind Direction: 357.55°
Sea Wave height: 1 ft | Swell: 340°, 1-2 ft
Air Temp: 12.35 °C

Science log

The purpose of this trip is acoustic trawl sampling for pollock (Gadus chalchogrammus). There are other projects that people are working on during this leg that I will report on in other upcoming blogs.

Today, at about 5:30 pm we deployed a CTD (Conductivity, Temperature and Depth – Probe). This probe measures the salinity using conductivity, the temperature with a digital thermometer, and records the data all at different depths in the water column. This CTD also records fluorescence which is an easy way to determine the amount of plankton present. The plankton at the surface are producers and have chlorophyll, which reacts to fluorescence and can be recorded. This information will be important when we start taking trawl samples, so the ships crew will routinely send out the CTD while we cover our transects.

Watch the videos below of the crew members deploying and recovering the CTD.

Crew members deploying the CTD
Recapturing the CTD

The data from the CTD collection are shown on the picture of the computer screen below:

a photo of a computer monitor showing a screen with three graphs in a row. The first depicts fluorescence (indicating chlorophyll levels) and turbidity v. depth. Chlorophyll levels start out high toward the surface but asymptote toward zero as the probe travels deeper. The central graph is blank. The third depicts salinity and temperature v depth. Salinity stays largely constant, but it does gradually increase with depth. Temperature is higher toward the surface, declines quickly and then slowly with depth.
CTD Data: Fluorescence, or Chlorophyll (green) and Turbidity (orange) v. Depth on the first graph, and Salinity (yellow) and Temperature (blue) v. Depth on the third graph.

The data from the CTD are presented in graphical form. The first frame shows chlorophyll, which is the green line. The second frame is percent oxygen (which they were not measuring so it remains zero). The third frame shows salinity (yellow line) and water temperature (blue line).

Personal log

Currently we are cruising out to our transect destinations over the continental shelf. The seas are a little rough (6-8 foot waves) and I am enjoying some saltine crackers that help with mild sea sickness.  It has been a while since I have been in a large boat in rolling seas.

Three days ago, I flew from Anchorage to Kodiak Island on an a sunny afternoon and met the science team for the cruise. The whole team was extremely welcoming, sharing stories of past cruises, colorful characters and the science behind acoustic trawl sampling. Later, they invited me to go surfing the next day at a beach on the far side of the island.

Through the camaraderie of playing in the waves I was introduced to these amazing people and their knowledge and love of the ocean. They are very professional and willing to share what they are studying.  They also have a deep concern for the changes occurring in the ocean and honestly hope that their information can be shared and understood in order to mitigate the impact of change.  Sitting on my surfboard I quickly learned I was the beginner, and they were the experts. With the experience of time, they would effortlessly snap up and slice through the waves.  Smiles and whoops encouraged each other as the sea crashed into the beach.

Four surfers sit on surfboards, facing away from the camera, awaiting the next wave. Beyond the surfers we see a line of mountains. The image is a color palette of grays: gray cloudy sky, gray ocean, dark gray-blue mountains.
Surfing off of Kodiak Island. Photo credit: Mathew Phillips
A surfer rides a wave back toward shore. We can see a mountain, part of Kodiak Island, behind the surfer. Both the sky and the ocean are gray.
Surfing off of Kodiak Island. Photo credit: Mathew Phillips

Surf photos courtesy of Mathew Phillips

The next day was spent with the science crew getting ready to bring aboard equipment they will be using, accessing and streamlining the information they need for the data collection, and also a little bit more shore time with fishing and hiking. I hiked up a local mountain called Pyramid.

Overall this has been a great start for a wonderful trip. I love to get my students outside experiencing the real world. After a year of taking both Oceanography and Marine Biology my students get to touch, see and smell the ocean through a field trip. They get to see marine birds and mammals, touch and taste icebergs and smell the brine scent of the ocean. They also get a chance to apply the knowledge and skills that they have learned in my class. The NOAA as Teacher at Sea Program is my field trip. I get to see the science and technology in action and share it with my students, friends and family. Thanks so much for letting me play!