This portal tracks the research and sea-going activities of the Fisheries Engineering and Acoustic Technologies (FEAT) Team from NOAA¿s Northwest Fisheries Science Center. Follow us as we use acoustics, trawling, and oceanographic sampling to learn about the Northeast Pacific Ocean.
(Reblogged from the Teacher at Sea blog - Go to https://noaateacheratsea.blog/category/2017/brad-rhew/ for more)
NOAA Teacher at Sea
Aboard Bell M. Shimada
July 22-August 8
Mission: Hake Survey
Geographic Area of Cruise: Northwest coast
Date: July 28, 2017
Weather Data from the Bridge
Latitude: 43 59.5N
Longitude: 124 12.6 W
Temperature: 54 degrees
Winds at 23.5 knots
Waves at 2-4 feet
Science and Technology Log
We are officially off! It has already been an amazing experience over the last couple of days.
One of the goals of this project is to collect data that will be used to inform the Pacific Hake stock assessment. This falls in line with the Pacific Whiting Treaty that the US-Canadian governments enacted to jointly manage the Hake stock. NOAA and Department of Fisheries and Oceans-Canada (DFO) jointly survey and provide the hake biomass to the stock assessment scientists. (Refer to the link in my last blog about additional information on this treaty). Major goals of the survey are to determine the biomass, distribution, and biological composition of Pacific hake using data from an integrated acoustic and trawl survey. Additionally, we are collecting a suite of ecological and physical oceanographic data in order to better understand the California Current Large Marine Ecosystem (CCLME).
There is a very detailed process the scientists go through to collect samples and data on the Hake caught and selected for sampling. They want to learn as much as possible about these fish to help with the ongoing research projects.
Here is a quick guide and understanding of how sampling works and what data is collected:
Even though this survey is just beginning this has been such an amazing experience already. I have learned a great deal about oceanography and marine research. I cannot wait to use my experiences back in my classroom to expose my students to careers and opportunities they could be a part of in their future.
Another great aspect of being a Teacher at Sea is the relationships I'm building with other scientists and the crew. It is amazing to hear how everyone became a part of this cruise and how passionate they are about their profession and the world around them.
Did You Know?
This is Leg 3 of 5 of this Summer Hake Survey. Two more legs will be completed this year to collect even more data on the fish population.
Fascinating Catch of the Day!
When we fish for Hake it is very common to collect some other organisms as well. Today's fun catch was Pyrosomes or Sea Tongues!
These free-floating colonial tunicates are found in the upper part of the open ocean. Pyrosomes rely on the currents to move them around the ocean. They are typically cone shaped and are actually made up of hundreds of organisms known as zooids. The Zooids form a gelatinous tunic that links them together creating the cone shape. They are also bioluminescent and give off a glow in the ocean.