NOAA Teacher at Sea: Annmarie Babicki
NOAA Ship Name: Oregon II
Mission: Shark and Red Snapper Bottom Longline Survey
Geographical area of cruise: Eastern Gulf of Mexico
Date: August 8, 2010
Weather Data from the Bridge
Sea Temperature: 30.2 Celsius (C)
Dry Bulb Temperature: n/a
Wet Bulb Temperature: n/a
Barometric Pressure: 1012.97 mB
Science and Technology:
Today the sea is very calm, so it was a great opportunity to have a diver’s drill. This was a very special event because they occur only once a month, so it was great to be able to watch the drill in action. Safety is of the utmost importance in everything both ship personnel and scientists do on this ship. Prior to the dive, the Captain, Dave Nelson, called a meeting for all who were involved. Their discussions included their mission, current and potential weather changes, possibility of sharks in the water, the role of each pair of divers and what the plan is in case of an emergency. There is an in depth checklist to follow along with the recommendations of the Captain, Executive Office, Navigator, Junior Officer, Diver Master, Chief Boson, divers and skilled fisherman. Everyone on board has multiple roles and the key to everything going to plan is teamwork and safety.
The rescue boat, called a RHIB, was put into the water prior to divers going in. There were two people in the boat who monitored the divers and were there in case of an emergency. This boat costs about $125,000 and needs to be cared for carefully so that it does not incur any damage. The divers jumped in the water, which was about 80 degrees and gave the OK (a pat on the head) that they were ready to begin their mission. When they were about 12 feet down in the water, I could clearly see them (No oil in these parts).
They checked out the bow and propeller blades to make sure there was not a barnacle build up that could impact them functioning properly. The dive went off without a hitch and their diving gear was hauled out of the water prior to the divers coming aboard. The Captain explained that this was done because the equipment is over 40 pound and would make it difficult for the divers to climb the floating ladder which is over the side of the ship. After the dive was completed, they had a debriefing session, where they discussed the status of the barnacles and concluded that at this time they were not having any impact the propeller or hull.
What an unbelievable 24 hours. The crew and scientists have been so supportive and patient with me, as I asked them a thousand questions. They are all willing to share their time, knowledge and experiences with me. I keep a small notebook with me at all times as there is so much I am learning every minute of the day.
We have been traveling to our first survey site, which is over 400 or so miles from the port in Pascaguola, Mississippi. At a speed of about 12 knots, it will take us about 34 hours to reach our destination. This has given me time to get my “sea legs”, which I’m still working on. No sea sickness yet, and besides there’s too much I want to see and do to have time to get sick.
One thing I have been struck by is the color of the ocean. It has change color many times since we left port. It has been a muddy brown because the fresh water coming down from the Mississippi River is carrying sediment, which is then mixing with the salt water of the ocean. As we got farther away from shore, the color changed from a muddy brown, to a green and then to a very dark blue. We are currently in very deep waters (approx. 10,750 feet) and the color of the ocean is a beautiful blue like I have never seen before. It almost took my breath away.
We will reach the survey site about 2 A.M. and get to work right away. It is a 24 hour working ship, which means that surveying never stops. I am part of a group of 5, who will work noon to midnight, therefore my work will start tomorrow. I have lots to do and learn in the meantime and can’t wait to see my first shark.
“Question of the Day”: What is a fin clip? Find out tomorrow after we begin the survey.