NOAA Teacher at Sea
(Almost) Aboard NOAA Ship Oscar Dyson
July 26 – August 13, 2014
Mission: Annual Walleye Pollock Survey
Geographical Area: Bering Sea
Date: July 23, 2014
Welcome to the Seablog! This is where I’ll be posting about my adventures aboard the NOAA Ship Oscar Dyson, as we study the fisheries off the coast of Alaska.
First allow me to introduce myself. My name is Gregory Cook, and I am, as far as I can tell, in the running for Luckiest Guy on the Planet! I teach middle school science and math at the East Somerville Community School to some of the coolest kids I know, and work with some of the best teachers in the country. Go Phoenix!
On top of that, I received acceptance this year with the National Oceanic and Atmospheric Administration’s (NOAA) Teacher at Sea program! NOAA is part of the Department of Commerce, and does research on everything from fish and whale populations to climate change to mapping the ocean floor and coastline!
In their Teacher at Sea program, I get to work with world class scientists, be a part of real-world research, learn about amazing careers, and share that knowledge with my students. In a small way, I get to share with you the exploration and study of this great planet. What else do you want out of life? A pony? I think not, good sir!
The Oscar Dyson is a ship built by the U.S. Government (Your tax dollars doing great work!) to study the Earth’s oceans. It’s over two-thirds of a football field long and almost fifty feet wide. It can deploy (or send out) over five kilometers (more than three miles!) of cable, It has two massive winches for launching scientific study packages. It can use something akin to Doppler Radar to tell you about what’s in the water beneath us and what the sea floor beneath THAT looks like.
Wanna see how they built it? Of course you do!
See Video Credits for Source Material
The first thing you need to know about Alaska is its name. It comes from the Aleutian word Alakshak, which means Great Lands or Peninsula… the entire state, in the end, seems to be named after the great Alaskan Peninsula that juts out into the Pacific Ocean.
If you’re one of my students, you’re probably asking “How…?”
Well, The Alaskan Peninsula forms in a Subduction Zone. That means that the Pacific Plate is diving underneath the North American Plate. This creates some beautiful upthrusts that you and I know as mountains… or, in the case of the Aleutians,… Islands! Geologists think The Aleutians are about 37 Million Years Old, formed by volcanic activity.
As a matter of fact, the Island I’ll be sailing from, Unalaska, was created this very way. You might remember (from 6th grade if you’re a Somerville kid!) Oceanic crustal plates are more dense than crustal plates, so they dive under them, pushing the mountains and islands up.
When I first heard I was sailing out of Unalaska, I wondered what was so “Unalaska” about it… like… were they Yankees fans or something?
It turns out that in the Aleutian language (the language of the Aleuts… the native people of the area) placing “Un-” in front of a word means “near.” So Unalaska means “Near the Peninsula.” You could say that I live “Undunkindonuts.” (Though, yeah, I’m a Starbucks guy).
OK, back to Geology…
So it turns out that a great deal of the Bering Sea is over the continental shelf of North America. What that means is that the sea is more shallow than the Pacific.
What THAT means is that all the good nutrients that run off of the land… from the rains and rivers… can support a huge amount of sea life. The Bering sea is one of the most productive fisheries in the world… It is teeming with life!
Which brings us to this guy…
If you’ve ever had Fish Sticks or McDonald’s Fillet o’ Fish, you’ve probably had some form of Pollock. They grow quickly, they die young, and have a lot of offspring. They also represent almost 2/3 of all the groundfish (fish that live near the bottom of the sea) caught in Alaska 2012.
So to say Pollock are important is kind of like saying bread is important… They have a huge impact on our lives here in the United States. So it’s important we look in on them every now and then, and make sure they’re doing ok… So we can eat them. 😀
That’s what I’ll be doing up there in Alaska. Exploring the Bering Sea, and looking in on our good friend, Mr. Pollock. I hope you can come along for the ride. 😀