longline survey – Page 10 – NOAA Teacher at Sea Blog

August 20, 2010April 22, 2021

Annmarie Babicki, August 20, 2010

NOAA Teacher at Sea: Annmarie Babicki
NOAA Ship Name: Oregon II
Mission: Bottom Longline Survey 2010
Geographical area of cruise: Gulf of Mexico
Date August 20, 2010

Weather Data from the Bridge

Latitude: 28.52 degrees North

Longitude: 85.52 degrees West

Clouds: partly cloudy

Winds: 10.37 kts.

Waves: 2-3 Feet

Air Temperature: 31.3 degrees C or 88 degrees F

Water Temperature: 29.7 degrees C or 85 degrees F

Barometric Pressure: 1014.28

Science and Technology:

There have been a couple of times when we have worked through a station and have not caught a fish. That has been very discouraging and rather boring. However, we had several stations that made up on it and we could barely keep up with bringing in the catch. One catch, we caught seven sharks that needed to be put in the cradle because they were so large.

Bull sharks can be dangerous in the Gulf area because they swim in shallow waters where recreational activities take place. They are one of the most abundant species of sharks, so you do have to be watchful of them. It is fairly easy to recognize them because of the width of their midsection is and by their rounded nose. The bull shark was a big male weighing 130 lb. The black lines you can see just behind his head are the gills slits. It’s amazing to think that he was enticed with a three inch piece of mackerel. This was only second bull shark we have caught on our trip thus far. The night shift also caught one and they were as excited as we were.

We also caught three sandbar sharks, which is the most common large shark we are catching out here. They ranged in weight from 82 lb. to 136 lb. Their colors vary from being a light sandy color to a grayish brown. We had one fighter that thrashed around in the cradle. The scientists was able to calm it down, so that it did not hurt itself. I made a video of one of the catches and it took the scientist and his assistants three min. to weigh, measure, tag and get the hook out of that shark. I did tag a sandbar shark, but generally do not handle the really big ones. This expert shark scientist is so skilled at handling sharks and the collecting of data he needs without stressing the sharks. I am in awe of his work and I very much admire the work he is doing to protect the shark populations in the Gulf.

We have caught several little sharks from the dogfish family that are not easily identifiable just by observing them. In order to identify them, the scientist takes a biopsy punch, which takes a small piece (approx. .8 cm.) of skin just below the dorsal fin. It doesn’t hurt the shark and does not go deep into the muscle tissue. When the DNA testing is completed, the scientist will have the correct genus and species of the shark, which they can then enter into their data base. Having accurate data is a must. Without valid data, the shark populations will not be managed properly, which impacts sharks and fisheries.

DSCF0362 — Two embryos from a sharpnose shark

Another small shark that we caught was the sharpnose shark, which we dissected a few days ago. Once again it was dissected and the data was collected on the female and her embryos. They were measured and were old enough that the sex could be determined. That was amazing to me as they were so small and translucent. I will be bringing two of the embryos home with me. I am sure my students will be excited them because you really can see their shark features.

In addition to the scientists on board, we have two contracted bird watchers, who have come to observe birds in the Gulf. What has brought them here is in part the impact of the oil spill on the birds in open waters. The other reason is that there have been few studies of Gulf birds, so at the very least they have begun to set a baseline for the species and populations. Early on in our trip, we saw a very small bird called a cliff swallow that was migrating south to Argentina, which is its home. It was fun to watch how they glided as they circled the ship. It was aerodynamics at its best. I was told that in February or earlier, it flies to North America where is mates and bears its young. These birds travel this distance every year, which may account for why they live only 2 or 3 years.

Personal Log

I have interviewed many of the officers and members of the science team since I arrived. They come from diverse backgrounds and their journeys coming on the Oregon II are also very different. Everyone has been very helpful and kind, even though I have so many questions that are both personal and professional in nature. I look forward to sharing their stories with my students.

Sleeping has been a little more difficult for the past couple days. I think it is the constant running of the engines. I have not experience any soundless time, which I often have at home. It will be nice to get home where it is quiet. The crew has informed me that the lack of noise may bother me because it does them whenever they return from a trip. They also stated that I will need a couple of days to adjust to land life. I hope not since I start school on Thursday!

I will complete one more blog

“Animals Seen Today” blacktip shark tiger shark, sharpnose. yellow wedge grouper, golden tile fish, king snake eel.

“Did You Know” that if a hook is left in a shark’s mouth, it will rust out and the shark will expel what is left.

August 17, 2010April 22, 2021

Annmarie Babicki, August 17, 2010

NOAA Teacher at Sea: Annmarie Babicki

NOAA Ship Name: Oregon II

Mission: Bottom Longline Survey 2010

Geographical area of cruise: Gulf of Mexico

Date August 17, 2010

Weather Data from the bridge

Latitude: 26.96 defgrees North

Longitude: 83.95 degrees West

Clouds: partly cloudy

Winds: 5.0 kts.

Temperature: 31.70 C or 89 degrees F

Barometric Pressure: 1014.55

Science and Technology:

It was afternoon when we caught a sharpnose shark, a silky shark and 6 blacknose sharks. This was very exciting because the blacknose shark is the chief scientist’s project out here in the Gulf. In order for him to make observations of age, maturity and reproduction, he has to dissect the shark. Three of the blacknose were put back in the ocean after they were weighed, measured and tagged. The other three waited for dissection. I watched as the three sharks were dissected and the only part that cause me to look away was cutting off the head. Some of my team members were so excited because they could keep the head and later remove the jaw. That is a lot of work, which I do not have the patience for, so I will not be bringing home a shark’s jaw and teeth. If there is time, one of the observers said she would prepare a jaw for me. Even if I do not get the jaw, I will be bringing back a shark fin, shark blood and several shark embryos. The shark fin is currently drying out and the embryo is being stored in ethanol, which is used for all specimens. I won’t go into all the gory details, but the scientist removed the entire reproductive system. He was looking to see if the shark had given birth and he can tell this by the color of the uterine tissue. The sharks collected, had produced 4-5 embryos each. The yellow yolk is a soup like fluid that the embryo feeds on the nutrients from its mother. There is a thin mucus that covers both the embryo and the yolk. It reminds me of a chicken’s egg. Each shark embryo was measured and cataloged. The data will be used when the scientist writes his paper on the reproduction of sharks, which will then be published.

This evening there was a good deal of excitement on board. We were hauling back our catch when the line broke. The thought was that it could be caught on something on the ocean floor or a small reef. It also could be that the line snapped because there was a large shark on it. This is not a common occurrence, but it has happened before. When this happens the ship sails to the last hi-flyer and we work our way backwards. In the end, everything was accounted for.
This really was no ordinary night. We were about 40 miles off shore from Cedar Keys, FL, at about 11 P.M., when we saw a small boat drifting about 3/4 mile from us with no lights on. The officers on the bridge saw a red flare shoot into the air, so they knew the boat could be in distress. Our ship got close enough so that they could shine a light onto it and kept track of them as it drifted. The NOAA officers talked to the boaters via radio and discovered that they had left port at 7 A.M. and that the motor on the boat kicked out about 2 P.M. They had been floating for nine hours and in a boat they could not repair. We were so far off shore, it was certainly understandable that they were very relieved to see us and get the help they needed.

Along the coast there is a company called “Sea Tow”. Their job is to haul in boats that are unable to get to land by themselves. You do have to pay for this service and it is like having car insurance, but costs a whole lot more money. Luckily this boat had that insurance, so Sea Tow immediately started out to get them. In the meantime our ship monitored them. They said they were OK and didn’t need any supplies, they just wanted to get on land. Sea Tow reached them about 4 A.M. and the Captain thinks they probably docked about 10 A.M. Thank goodness the Oregon II was out there, because they would have floated out there for many more hours before being seen by another ship. I asked the Captain what would happen if the boaters did not have Sea Tow and he said they would have called the Coast Guard, who in turn would come out to rescue them. This is like a story you hear on the news. This officers and crew feel they were just doing their job. They are very humble indeed.

Personal Log

Speaking of dress, I thought you would like to know what I am wearing while I am here. It is so warm here that shorts are in order. Sometimes I wear sleeveless shirts, but most time I wear short sleeve shirts. I am wearing sneakers, but wish I had rubber boots. My sneakers are soaked just about everyday. Luckily the engine room is hot so I can put my sneakers there to dry. Rubber gloves that are heavy and have a very thick layer of weaved cotton one one side are always worn when we are catching sharks and fish. They really don’t protect you so much from bites, but rather from the scales of these animals, which are like little knives. Whenever you are catching fish, you have to wear either sunglasses or safety glasses. Hard hats are required anytime machinery is being used, which is when we put sharks in the cradle. Finally and most important is a PFD. They are not too heavy and come equipped with flashlights in case of an emergency. My challenge is to make sure I have everything when I need it. We put out lines on the stern of the boat, but catch them on the bow, so we are not always working in the same place. It sounds simple, you just have to get into the routine, which I almost have down.

We are starting to move more quickly up the coast of Florida and continuing to complete stations as we go. We will be back in port on Sunday. The ship can sail at about nine or ten miles per hour, so it will take us awhile to get back to Pascagoula at that rate. The time on this ship is going by so fast, it’s hard to believe I have been on this ship for over a week!Answer to question of the day: There are many, many ways that the officers and captain can communicate with ships. One way is GMDSS,which stands for Global Maritime Distress Safety System. This system has many components, some of which are overlapping and the expectation is that boaters will have some of them on their boats, whether they are commercial or recreational. There are computer systems, whistles, flags, and a lighting system that uses the Morse Code. As you can see this is very complicated. There are courses that captains and officers have to take in order to understand how the communicate and keep a boat or ship safe.

“Animals Seen Today” sharpnose shark, blacktip shark, red groupers, red snappers, nurse shark, blacknose shark. A sandbar shark that was much darker that the one we saw a few days ago. A few days ago we caught a great hammerhead, which is a light gray color and different from the scalloped hammerhead.

August 17, 2010April 22, 2021

Beth Spear, August 17, 2010

NOAA Teacher at Sea: Beth Spear
Aboard NOAA Ship Delaware II

Mission: Shark and Red Snapper Survey
Geographical area of cruise: Gulf of Mexico
Date of Post: August 17, 2010

I sadly said farewell to the Delaware II after 10 days and six night watch shifts hauling back sharks. It was a wonderful experience, but it was nice to get off the ship. 🙂 I think my favorite moment was watching the sun rise one morning while a small pod of spotted dolphins surfed in the ship’s wake. I even saw two sets of mothers and babies playing together and thought I heard some faint clicks and chirps from them.

Something my fellow shipmates warned me about when we returned to land was dock rock, or sea legs. I did find myself swaying on the dock after disembarking from the ship. I thought that was the extent of it. However my first night on dry land my internal clock woke me up promptly at 11:45 PM for my night watch . I stumbled out of bed to visit the bathroom. I nearly fell flat on my face trying to compensate for the ship’s rocking even though the floor was steady. I think it took about 5 days for the bed to stop rocking like the ship. It was really strange I’d go to bed and it was fine, but when I woke up it felt just like the bed was pitching around as if I was back at sea.

While I was on board the ship I was unable to upload videos. I have attached a couple videos below showing the crew and scientists setting and hauling back the catch.

This video shows the night watch setting of the first 1/10 of the botton longline. The video begins just after Khris, a NOAA deckhand, had released the high flyer and bouy. Arjen, a volunteer, clips a numbered sample tag to the gangion held by Ryan, a grad student volunteer. Ryan feeds the gangion over the side of the ship and passes it off to Richie, a NOAA deck hand. Richie clips the gangions to the longline approximately every 60 feet. Adrian, the chief bos’n, is running the winch feeding out the longline. If you watch carefully Richie almost loses one of the gangions. We teased him about stagefright after I stopped taping.

This video shows the night watch hauling back a catch. The vast majority of sharks were Atlantic Sharpnose, shown in this video. Richie and Khris are hauling in the line while Adrian is overseeing operations from the upper deack. Ian is collecting the numbered tags from the gangions. Lisa is collecting the gangions and reloading them into the barrels used to store them between sample locations. Ryan and Arjen are handling the sharks. Christian is recording data. There are 100 hooks and things can get pretty lively hauling back a catch with a lot of sharks. As you may notice removing the hook can be difficult. Ryan is good at it, but Arjen, much like myself find it more difficult. In fact I usually asked Christian to help me with the hook. I was very proud of the single, solitary hook I removed all by myself. 🙂

August 15, 2010April 22, 2021

Annmarie Babicki, August 15, 2010

NOAA Teacher at Sea: Annmarie Babicki

NOAA Ship Name: Oregon II
Mission: Shark and Red Snapper Bottom Longlining Survey
Geographical area of cruise: Gulf of Mexico
Date: August 15, 2010

Weather Data from the Bridge

Latitude: 26.96 degrees North
Longitude: 83.18 degrees West
Clouds: scattered clouds
Winds: 6.13 kts.
Air Temperature: 33.5 C or
Barometric Pressure: 1014.93

Science and Technology:

Today was another fantastic day of seeing biology at its best. I had the opportunity to observe the dissection of a sharpnose shark. It is a small shark (about 2′ long) and rather docile, so it has been a good shark for me to practice on learning how to handle sharks. The Chief Scientist works with many other scientists who are researching the reproduction of a variety of sharks in the Gulf. Although this species of shark is not the one that he is researching (he is researching the blacknose shark), shark colleagues throughout the Gulf work together in order to obtain as much data as possible, and therefore collect data for one another. Scientists look at the reproductive stages by observing and performing tests on the reproductive organs. The shark dissected was a female in advanced puberty, but was in the process of collecting developing eggs. The samples taken on this shark were the follicles, where the eggs are stored, a piece of tissue and a blood sample. They will be taken to the NOAA lab in Pascagoula for examination.

DSCF0230 — Yellow follicles where eggs are stored.

One recent finding on the blacknose shark study is that it was thought to reproduce annually. The Shark Scientist has recently found samples of blacknose sharks that show some reproduce biennially and some annually. This came about by looking at the physical features and chemical makeup of the sharks. The Chief Scientist stated that they will need to go back and review all of the data they have collected on these sharks over the many seasons they have been conducting the bottom longline survey. The reason why this is so important is that the federal regulation of the catch is based in part on this data. The outcome could be that the shark population is being depleted at a faster rate than was expected or the population is larger than anticipated, which means the catch regulations could be changed to reflect that. The shark biologist and the shark endocrinologist ( researching the hormonal makeup of sharks) were both sure that their data was accurate and valid, yet their results contradicted one another. As you would hope, these scientists are open-minded enough to review their findings again and will try to solve this unexpected puzzle.

There is a great deal of data that is collected during these types of surveys. Some data is recorded with pencil/paper, other data, such as that collected with a piece of equipment called a CTD (for “conductivity”, “temperature”, and “depth”), is recorded with computers. The actual measurements of sharks are written with pencil/paper, but once each station is done, the information is entered into one of the computers that are in the dry lab. There are six computers in the dry lab, 2 of which are laptop computers called Toughbooks. The Toughbooks are used when the hi-flyers, weights and numbered tags are put out on the fishing line and when they are hauled in. They are recording the position and time each twelve foot line is being dropped into the water.

The CTD is an extremely expensive and sensitive piece of equipment that is placed in the water immediately after the crew and scientists have finished setting the longline. The CTD sits below the surface for 3 minutes and is then lowered nearly to the ocean floor. The crew needs to be careful not to let it touch bottom because it can damage the sensors causing the unit to fail. All of the data from this equipment is analyzed by the Chief Scientist when he returns to the lab. There are also computers in many offices on the ship. As of this writing, I have not had the opportunity to explore what their functions are. That is for another day.

Personal Log

It is incredibly hot here today and I have not adapted very well this week. For a person who is always cold and who rarely sweats, it is quite a surprise to have sweat dripping from everywhere. I even had sweat dripping from my forehead into my eyes! That is not fun. Although I do not generally drink Gatorade, I am drinking a lot of it on this trip! I really am not complaining, just making a statement. I am really having such a great time on board this ship. It truly is a once in a life time experience.

In the past couple of days I have had the opportunity to interview the five scientists (which includes the shark scientist) that I work with, and the captain of the ship. Their backgrounds are very different, but they all agreed that their love for the ocean has always been there. The also all stated that while in high school, there were not marine biology classes. It was not until they were at the college level that there were course offerings in their area of interest. The shark scientist has a PhD., but the other crew members do not. They are planning to work on their master’s degree in the future. All of the crew have set goals for themselves and I am sure they will achieve them. Each one gave advice to my fifth graders and that is do what you love. I really enjoyed spending time with all of them and have a lot to share with my students and teachers when we are back in school.

“Answer to the Question of the Day:

DSCF0220 — A flying fish caught in the night.

The answer is yes. There is this wonderful little fish that swims very fast under water, but will fly or skip like a rock over the water. It is a great adaptation that helps it to survive because the dolphins just love to feast on them. Often times where there are flying fish, there are dolphins. The other evening a flying fish flew out of the water and bounced off one of the crew members who was walking to the bow. One of the volunteers, who happens to be from UNE, caught it. That was so amazing in itself and getting to see it upfront was even better. Another example of the wonders of the ocean.

“Question of the Day”

How do captains and crew members communicate with ships that are far away?

“Animals Seen Today” a pale spotted eel that has very sharp teeth and bites.

August 13, 2010April 22, 2021

Annmarie Babicki, August 13, 2010

NOAA Teacher at Sea: Annmarie Babicki

NOAA Ship Name: Oregon II

Mission: Sharks and Red Snapper Bottom Longlining Survey

Geographical area of cruise: Gulf of Mexico

Date: August 13, 2010

DSCF0213 — Calm seas in the Gulf off the coast of Florida

Weather Data from the Bridge

Latitude: 26.18 degrees North

Longitude: -84.07 degrees West

Winds: 5.25 knts.

Air Temperature: 30.5 C or 87 F

Barometric Pressure: 1013.84

Science and Technology:

Today we entered a fishing area that had once been closed to fishing due to the oil spill. Since the spill, NOAA scientists have the added responsibility of collecting data on the fish they catch and preparing them for return to a lab. Scientists will to keep up to ten fish of each species for each station they fish. There is a protocol that is followed in the handling of these fish. Basically, they are wrapped in a industrial strength aluminum foil, labeled, bagged, and placed in a freezer. Upon returning to port, the Chief Scientist with sign over each individual fish to the National Seafood Inspection Laboratory (NSIL) at Pascagoula. Toxicology testing will be performed on each fish to determine if chemicals from the oil have entered their body. The data will be analyzed and determinations will be made. Many marine biologists have been out to sea for long periods of time since the spill. They have been away from their family and friends, but feel that what they are doing is very important for marine life and the people along the Gulf. Their passion and dedication is much like the passion and dedication I see in teachers.

On a lighter note, yesterday I was able to tag my first shark. The sandbar shark was large enough to be brought up in the cradle. The Chief Scientist made the slit just below the dorsal fin, while two other assistants held the shark in place. I did not get the tag in on the first try, but finally did get it into position. The shark’s skin was so tough and full of razor-like scales. If a shark’s tail slaps and hits you, it can leave a burn-like mark that is very painful. Hopefully I will not have that experience while I’m here. Tagging the shark was amazing and frightening all at the same time. I was very aware that I needed to get it done quickly before the shark became restless. A shark’s movements are swift and powerful and you don’t want to be in their way. Everyone out here has a great respect for these animals and appreciates the beautiful creatures that they are. I, too, am learning what they already know.

Personal Log

I almost never know where to begin as I write a blog. There is always so much going on, so much to see, learn, and write about, it is sometimes overwhelming. I always have questions for everyone here and they are willing to take the time to answer them with great detail. Today the Chief Scientist was explaining to me about the swim bladder on a particular fish that we pulled out at one of the stations. One of the lessons in the ocean unit is about swim bladders, so I was very curious to hear more about them. After listening to him, I came away with a better understanding, which I will be able to share with my students.
Well, we all like to eat and if you like really good food and lots of variety, the Oregon II is the place to be. Our chef served in the Navy as a Culinary Specialist and upon retiring joined NOAA. You can tell he loves his job and that he’s not just cooking. He creates meals that tickle all of your taste buds and some you never knew you had. No one misses mealtime around here. And if you think you may, he will put a plate aside for you so that you don’t miss his luscious meal. If you’re sitting in the mess hall you hear lots of “thank you’s” and if you look at the chef, you will see a wide, proud smile on his face.
When I can, I try to head up to the bridge to learn about all the complicated and sophisticated electronics that this ship is furnished with. The equipment provides a staggering amount of information that the officers must analyze prior to making decisions about how to manuever their way from station to station. I was told that it is very unlikely a NOAA ship can get lost at sea. There are multiple systems in place, so that if one fails, there is at least one other to take its place. Even though the ship has navigational and radar systems, the officers continue to use paper nautical charts as a backup. The Captain and all of the officers who sail this ship love what they do and put safety for everyone above all else.

“Answer to the Question of the Day”
The wet lab of the ship is where the scientists process marine life and store supplies they will need to work with while they are out to sea. In the dry lab you will find computers that are used entering data and for general communications.
“Question of the Day” Is there a fish that really flies?