NOAA TEACHER AT SEA
ONBOARD NOAA SHIP OSCAR DYSON
JUNE 11 – JUNE 30, 2011
NOAA Teacher at Sea: Jason Moeller
Ship: Oscar Dyson
Mission: Walleye Pollock Survey
Geographic Location: Gulf of Alaska
Dates: June 19-20, 2011
Latitude: 54.29 N
Longitude: -165.13 W
Wind: 12.31 knots
Surface Water Temperature: 5.5 degrees Celsius
Air Temperature: 6.1 degrees Celsius
Depth: 140.99 meters
Welcome aboard, explorers!
To be honest, there is not a great deal to write about for the personal log. My daily schedule has settled in quite nicely! I get off work at 4 in the morning, shower, sleep until 2:30 in the afternoon, and then head down to the acoustics room where we track the fish. When we are processing a catch (see the science and technology section of this blog), I am in the fish lab wearing bright orange waterproof clothes that make me resemble a traffic cone.
The rest of the time is down time, which is spent reading, working on the blog, learning about the ship, and dreaming up lesson plans that I can use to torment my students. I hope they are interested in a summer fishing trip, as that is the one I am currently planning.
Most of the blog work involves running around and taking photographs. My wife’s camera was soaked beyond repair during the prank that was pulled (see the previous post) as Sarah was holding the camera when the wave came over the railing. Fortunately, there was another camera on board.
Our survey is keeping us very close to the coast and islands of Alaska. As a result, I’ve gotten some gorgeous photos. This place is just beautiful.
Science and Technology Log
We finally started fishing! As I mentioned in my very first blog, the Oscar Dyson is surveying walleye pollock, which is an important fish species here in Alaska. Walleye pollock make up 56.3% of the groundfish catch in Alaska, and is eaten in fast food restaurants around the world such as Wendy’s, McDonalds, and Burger King. It is also used to make imitation crabmeat.
Our first catch had a little over 300 walleye pollock, and we processed all of them. Three hundred is an ideal sample size for this species. If, for example, we had caught 2,000 pollock, we would only have processed 300 of the fish, and we would have released the rest of them back into the ocean.
The photo captions below will provide a tour of the fish lab as well as introduce blog readers to the data we wish to collect and how scientists aboard the Oscar Dyson collect it.
From this catch (we will do this for any following catch as well) we also took and preserved twenty stomachs from random fish. This was done in order to later analyze what the pollock had eaten before they died. We also took forty otoliths from random pollock as well. An otolith is the ear bone of the pollock, and it is incredibly important to researchers as they will tell the pollock’s age in a similar manner to the way a tree’s rings will.
While looking at pollock is the main focus of the survey, we did run into some other neat critters in this haul as well!
Reader Question(s) of the Day!
Today’s question is actually a request. It comes from Tish Neilson, one of our homeschool parents.
Hey Jason –
I had a super favor to ask of you. There is a little girl from Jackson’s school that is a 5th grader and she was recently diagnosed with leukemia. There have been some bracelets created for her that say “Going Bananas for Anna” to show support and several moms and I have gotten together and are putting together a scrapbook for her and trying to get as many people as possible wearing her bracelets in really cool places. Then we are having them take pictures to send to us to put in her scrapbook so she can she how far her bracelets have traveled and how many people are pulling for her. If it’s possible to do so and you would be willing to do it I would LOVE to try and get you a bracelet to take some pictures and send to me from Alaska. Her nickname is Anna Banana and she is always asking for pictures and such so that is why we came up with this idea.
Unfortunately, I had left for Alaska before I received the email, and as a result I do not have a bracelet. Hopefully, a sign will work just as well.