Carol Schnaiter: Our First Day of Work, June 10, 2014

NOAA Teacher at Sea

Carol Schnaiter

Aboard NOAA Ship Oregon II

June 6 – 21, 2014

Mission: SEAMAP Summer Groundfish Survey

Gulf of Mexico

June 10-11, 2014

South wind  10 to 15 knots

Seas (waves) 3 to 4 feet

Partly cloudy

My home away from home for a few weeks!

My home away from home for a few weeks!

Science and Technology Log

On June 9th we arrived at our first station. There are over 120 stations on this survey in the Gulf of Mexico. Unfortunately I was not able to participate in the first station. (More on that later)

When we arrive at the station the ship’s crew is very busy. The deck crew put trawling nets into the water and down to the bottom to catch fish, shrimp, and other organisms. Once these nets are back at the surface the crew uses cranes to lift them to the deck where the scientists can work on the catch. When the nets are in the water the ship must slow down, so the nets do not rip.

After the nets are raised the organisms collected in the nets are emptied into buckets. The scientists then weigh the buckets on a scale. To make sure they are only weighing the organisms, they first weigh the bucket when it is empty.

Weighing the catch

The basket must be weighed before we sort it.

Next everything goes into the “wet” lab. It is called a wet lab because this area has water available and it is where the organisms are poured out on to a long conveyor belt, sorted, and washed off.

Catch on the conveyor belt

Everything is poured onto the conveyor belt to be sorted.

First, everything is sorted by species. Then everything is counted, measured, weighed, and sometimes the gender and maturity are calculated. All of this is recorded into computers.

Some of the species are very tiny and others are large, but everything is counted.  Many of them look alike so the scientists need to be careful when sorting everything.

The scientists on the Oregon II know many of the names of what they catch, but they also use books, charts, and the computer to look up information to make sure.

Sometimes someone in the lab back on shore may be doing research on a certain species and if that species is found it will be tagged, bagged and sent back to the lab.

The CTD’s and bongo net tows are conducted from the forward well deck (check the first blog if you forgot what those do).

The bongo nets are used to collect ichthyoplankton and so the mesh on these nets is very tight, sometimes as small as 0.333 millimeters. These samples are placed into jars and will be examined back in the lab on land later.

Material from bongo net

This is what we collect using the bongo nets. Photo by Chrissy Stepongzi

By time everything is finished, it is time for the next station and everything starts over again.

The work that the Oregon II does is very important. This survey has been conducted twice a year since the early 1970’s and the information collected can show the scientists what is happening under the surface of the water.

The survey helps to monitor the population and health of everything, plus shows any interactions with the environment that may be happening.

Personal Log:

You may have noticed that I mentioned I could not participate in most of the first day’s work, I was seasick and I spent a lot of time in my stateroom.

State Room

State Room

Thank goodness for the medics and Chief Steward on the ship. Walter, the Chief Steward, sliced up fresh ginger for me to suck on, while Officer Rachel Pryor gave me sugar coated ginger to chew on.

The two trained medics, Lead Fisherman Chris and Fisherman James, both were great help and were all very concerned. Kim, the lead scientist, and my bunk mate, Chrissy, checked in on me throughout the night. I am so grateful for everyone that helped. I am now drinking a lot of water and Gatorade to stay hydrated.

As soon as I felt better I was able to help in the wet lab by sorting, counting, weighing, and measuring organisms that were pulled up. We found some really cool things, like this Atlantic Sharpnose shark that Robin Gropp is holding.

Atlantic Sharpnose Shark

Atlantic Sharpnose Shark

The Atlantic Sharpnose Shark can grow to be 3.9 feet long and can live 10-12 years. It is a relatively small shark, compared to others.

The Common Terns (seabirds) follow the ship when we are trawling hoping to find a free meal. They sit on the ship’s rig that holds the nets waiting for food. The Common Tern is the most widespread tern and can be found by many large bodies of water. They are mostly white with a little black.

Common Terns waiting for dinner!

Common Terns waiting for dinner!

Taniya Wallace and Andre Debose are the two scientists on the night shift (midnight to noon) and they are extremely knowledgeable and explain everything to me. I am learning a lot of new words and I am even getting better at telling one fish from another.

Andre and Taniya holding the stingray.

Andre and Taniya holding the stingray.

The Southern Stingray that Andre is holding is just one of the amazing creatures we caught. We also brought up a Blackedge moray, a Texas Clearnose Skate, a sea hare, red snapper, jellyfish, pufferfish, sea horse, and many more. I can’t wait to share all of my photos next school year!

He may not look dangerous, but he could really hurt you!

He may not look dangerous, but he could really hurt you!

I am working the midnight to noon shift and it is strange to “wake-up” at midnight and eat supper (the cooks save a plate if you ask) and then go to work. Again, the food is wonderful. Last night I had the best prime rib and mashed potatoes!

Everyone on the ship is so helpful and friendly. I enjoy listening to where everyone is from and why they decided to make the Oregon II their home.

On the Oregon II

Here I am enjoying the beautiful view from the bow. Photo by Rebecca Rosado

Maureen Anderson: How Do You Catch A Shark? July 28, 2011 (Post #3)

 NOAA Teacher at Sea
Maureen Anderson
Aboard NOAA Ship
Oregon II (NOAA Ship Tracker)
July 25 — August 9, 2011

Mission: Shark Longline Survey
Geographical Area: Southern Atlantic/Gulf of Mexico
Date: Tuesday, July 28, 2011

Weather Data from the Bridge
Latitude: 27.34 N
Longitude: -080.03 W
Speed: 1.50 kts
Course: 97.00
Wind Speed: 12.19 kts
Wind Direction: 140.99
Surface Water Temperature: 27.40 C
Surface Water Salinity: 24.04 PSU
Air Temperature: 29.50 C
Relative Humidity: 72%
Barometric Pressure: 1018.06 mb

Science and Technology Log
Today we arrived at our first station. It took us a while (3 days) to get here. Where is here? We are off the eastern coast of Florida right now.

You might be wondering… how do you catch a shark? In order to collect data on sharks, the ship slowed down so that we could set bait and begin to fish. The bait was big chunks of mackerel placed onto hooks. (Mackerel is just one of many fish sharks enjoy eating). Then we attached a tag (with an identification number) to each hook and released it from the stern (back) of the ship. All together, there were 100 baited hooks on a monofilament line that was 1 nautical mile long (equal to 1.15 miles). The baited hooks were released every 60 feet. Then we waited one hour before hauling in the line. This kind of work takes teamwork – one person to get the tag ready, one person to attach the tag to the baited hook, and one person to make sure the line is going out steadily. There is also one person collecting data on a laptop about the tag number that went out. Pretty much, the job can’t be done without people working together.

Bait and Hooks

Here are 100 hooks baited with mackerel. Holy mackerel!

One Line for Bait and Hook

Here is the hook, line, tag, and bait.

One hour later, we began to haul in the line. Out of 100 hooks, we caught 4 sharks. There was one Atlantic sharpnose and three hammerheads. If the shark was small enough, we brought it aboard the deck to take measurements. If it was too large to bring in by hand, we used a cradle, which is basically a net with a strong frame that sits off the side of the boat. We measured the length in millimeters using a measuring board, mass in kilograms using a spring scale, gender (using our eyes), and took a tiny sample of the dorsal fin tissue (which helps with DNA identification). All of this is done within minutes. The shark data is collected very quickly so that we can get it back into the water as soon as possible.

cradle

This large cradle is used to support larger sharks.

measuring hammerhead

Here I am with a scalloped hammerhead. The measuring board is used to collect data on its size.

At our second station today, we caught many Atlantic Sharpnose and one Goliath Grouper. The grouper was enormous – 300 pounds! (as you can see in the picture below). We also tagged a shark using something called a Roto-tag. This small yellow device is attached to the middle of the dorsal fin and has identification information and a phone number to call if the shark is found. The shark was also injected with an antibiotic. It is deposited in the vertebrae as a fluorescent marker. The number of growth rings deposited in the vertebrae after the marker help scientists determine the shark’s age.  Kind of like rings on a tree trunk.

Goliath Grouper

Mark Grace, chief scientist, collects data on this Goliath Grouper

Try your luck with this math problem (keep your summer math rust-free!):
We cut up one whole mackerel into 4 pieces and place each piece on a hook. There are 100 hooks. We set out a line of 100 hooks 5 times a day. We do this repeatedly for 13 days.

Personal Log
At first I was a little hesitant to handle the sharks while they were on deck. But under the tutelage of our chief scientist, Mark Grace, I began to feel more confident (thanks Mark!)  He showed me how to hold the shark by the tail while also holding the mouth closed. Once I got the hang of it, I really enjoyed it. After collecting data, I was able to release a few sharks back into the water and watch them swim away.

I had a hard time sleeping well last night because yesterday I took a 3 hour nap during the day to try to calm my stomach. But since my shift ends at midnight tonight, I’m sure I’ll fall asleep no problem.

I have been eating wonderful food cooked by our talented stewards (chefs). Some of our meals have included beef tenderloin, burgers, pork chops, biscuits, mashed potatoes…the list goes on (yes, there are some vegetables in there too!). Meal times are only scheduled for one hour, so if you know you will miss your meal due to a shift you can request that a plate be set aside for you. Of course there is unlimited cereal, snacks, sandwiches…and ice cream!

Now it’s off to bed after a long shift ending at midnight.

Species Seen Today:
Atlantic Sharpnose Shark
Scalloped Hammerhead Shark
Goliath Grouper
Lemon Shark