shark survey – Page 9 – NOAA Teacher at Sea Blog

July 30, 2007April 1, 2021

Elizabeth Eubanks, July 30, 2007

NOAA Teacher at Sea
Elizabeth Eubanks
Onboard NOAA Ship David Starr Jordan
July 22 – August 3, 2007

Mission: Relative Shark Abundance Survey and J vs. Circle Hook Comparison
Geographical Area: Pacific Ocean, West of San Diego
Date: July 30, 2007

Weather Data from the Bridge
Visibility: 10 miles
Air temperature: 20.0 degrees C
Sea Temperature at 1,000m: -No CTD test tonight
Sea Temperature at surface: 19.8 degrees C
Wind Direction: 270 W
Wind Speed: 11 kts
Cloud cover: Clear –very cloudy, stratus, cumulus
Sea Level Pressure: 1011.9 MB
Sea Wave Height: 2 ft
Swell Wave Height: <1 ft

Science and Technology Log

Today as my early shift which means I was up and on deck by 5:45 am. The morning was beautiful. I got to clip the gangion with line, hook and bait onto the long line. This has the potential to be a very stressful job, if it is really windy or there are large waves. I have avoided this job, for fear I would get tangled and go over board or miss the long line and drop the baited line, miss the space to clip my gangion or get the alternating Circles and J’s messed up. Lots to remember. But when Dr. Kohin asked me to do it, of course I said “sure”. And guess what nothing bad really happened. I didn’t wreck the whole survey or anything! The long line has little bolt like things on it with a space between where you are supposed to clip the gangion. It can be tricky to clip them on, because the long line is moving out past you to the sea. I did miss two, but it wasn’t a huge disaster. The circles got a little knotted in the basket so there was nothing that could be done about keeping those in order, it was more important to get bait on the hooks, but later we added a few extra circles to keep the data on target and even.

Gangion clip attached to 20 foot line with hook (Circle or J) and Pacific Mackerel bait.

Funny, I actually found it to be my favorite job. It was exciting and challenging and keeps your attention. Of course it was a calm day so it wasn’t as stressful as it could’ve been. The hardest thing about clipping this morning was to resist running to get my camera. The sun magnificently peaked through the clouds as a bright pinkish red ball at 6:30 am . The ocean was alive with visible life as sea gulls circled, and dolphins and seals splashed in the water. I worked on de-meating shark jaws for a while, which is tedious but fun. Their teeth are so plentiful and sharp. Fours hours later we hauled the line and had four Mako Sharks. Not the best set, but not the worst either!

Heather Marshall, grad student from U Mass. of Dartmouth on the phone with her mother. Too bad she couldn’t talk to her boyfriend, but he had just boarded a research vessel studying northern shrimp out of Maine for Massachusetts. — Heather Marshall, grad student from U Mass. of Dartmouth on the phone with her mother. Too bad she couldn’t talk to her boyfriend, but he had just boarded a research vessel studying northern shrimp out of Maine

Personal Log

We arrived near Avalon, which is on Santa Catalina Island, California at 3:30pm. As soon as we got close to it people started to pull out their cell phones. I have to admit that as wonderful and adorable that Avalon was the best part was talking to Rob, my mom, Jim, Bob and Sue. Telephones are not a luxury that we have on this ship. I am sure I wasn’t the only one that felt this way, because every time I turned around either on the ship or on Avalon, people were on their phones. In fact even down to the last minute while the ship was pulling away from civilization, people were still making one last call to their loved ones.

“26 miles across the sea, Santa Catalina is a waiting for me” – old tune from the 50’s – Who is the artist?

Santa Catalina Island is about 25 miles long and 26 miles off of the west coast of California. To get there from the mainland you take a Ferry from Long Beach, which is south west of Los Angeles. You need special permission to bring a car. We were in a town called Avalon, it is located in the south eastern part of the island. The Wrigley’s, as in Wrigley’s gum family use to own a lot of the Island, but some years ago donated most of it to the state, the Nature Conservancy and to the University of Southern California. Many organizations such as the Boy Scouts use some of the areas and are allowed to continue providing they take care of it. Avalon was very popular back in the day. During the big band swing era in the 50’s musicians like Glenn Miller, Benny Goodman and Tommy Dorsey would come place at the Casino which is really a Ballroom. It is a quaint little town with electric cars, buses and golf carts driving all about. Rarely do you see a typical car. There are lots of shops and cute places to eat.

Harbor at Avalon, Santa Catalina Island, California. The former Wrigley house is the one that sits highest on the mountain in the photo.

We were brought over to the island on Zodiacs, a small rubber watercraft and stayed for 2 or so hours. A group of us wandered around, while some swam and others ate. It was such an unexpected bonus and so nice to be in a town. About an hour or so after we arrived I was interviewing Charlie with my camcorder and as I looked at the screen I noticed I was rocking – okay so I felt like I was rocking! I didn’t expect this. When I told Ann Coleman who was an experienced scientist at sea, she said it was common and said the strangest would be when I get home and take a shower, especially when I close my eyes and when I go to bed. I will see how that goes.

Question of the Day

Why do you think it is important to throw the fish and the line overboard before you clip the gangion onto the long line?

Question of the trip: Which hook, the J or Circle, will catch more sharks?

Please make a hypothesis. Utilize resources to justify your hypothesis. ———Yes, you get extra credit for this.

July 28, 2007April 1, 2021

Elizabeth Eubanks, July 28, 2007

NOAA Teacher at Sea
Elizabeth Eubanks
Onboard NOAA Ship David Starr Jordan
July 22 – August 3, 2007

Mission: Relative Shark Abundance Survey and J vs. Circle Hook Comparison
Geographical Area: Pacific Ocean, West of San Diego
Date: July 28, 2007

Weather Data from the Bridge
Visibility: 10 miles
Air temperature: 19.0 degrees C
Sea Temperature at 5000m: 6 degrees C; Sea Temperature at surface: 20.3 degrees C
Wind Direction: 270 W
Wind Speed: 16 kts
Cloud cover: clear –some cumulus, cirrus
Sea Level Pressure: 1013.7 mb
Sea Wave Height: 1-2 ft
Swell Wave Height: 2 ft

Science and Technology Log

The mortality (death) rate has spiked a little – very sad. We brought in a Blue shark last night that had evertted (thrown up) its stomach. Sometimes sharks do this when they eat something bad, like a hook. Most times they just suck it back up. It isn’t a common thing to happen and obviously it is a last extreme measure to feel better. It is probably dangerous to throw up your stomach when you have all of those teeth it needs to get passed to leave your mouth. When the scientists first saw the shark, they said it would be okay. We were all hopeful, but by the time it got on the ship it had died. Of course as always when there is a mortality, paper work is filled out and researchers use so much of the shark, so that is the good part.

Bedrooms on board the DAVID STARR JORDAN -mine is the bottom bunk

Personal Log

Simplify, Simplify. -Henry David Thoreau

One “simplify” would have sufficed. –Ralph Waldo Emerson, in response

Life on this ship is simple. I have not looked in full length mirror since I boarded. Actually I haven’t seen myself too much below my chest even. Well, a couple of times in a photograph I saw my full body. Makeup, jewelry, matching clothing, high fashion, hats, they just aren’t important out here. In fact I did boycott the hats for a few days, because ever since I shaved my head I felt like I looked funny in a hat – like a boy. Oh well, too bad. It is so sunny out here so I need to wear my floppy hat to protect my skin. I need to wear Rob’s knit hat, because it gets equally as cold. My shirt sleeves smell fishy some of the time. But instead of washing the whole shirt, I was the sleeves. Quite often I sleep in the clothes – hat and all I wore all day if they aren’t dirty, because for some reason it is so chilly in my room. I live in the same clothes day after day if they don’t smell fishy. We eat what we are fed and get called to eat by an extremely loud bell. We sleep in small, simple bed. I washed a batch of clothes yesterday – sheets included. It all went in one load and took me about 5 minutes to put away.

We work at certain hours and relax or help out, read or wander about the ship, watching the ocean for creatures. We aren’t at the grocery store choosing what food to buy or shopping at a mall. We aren’t talking on the phone or watching a whole lot of TV, we do have to pick movies sometimes though (500 choices – now that is complicated). Dovi, one of the Doctoral students did not take a shower or change his clothes until yesterday (mid trip). I didn’t get too close to him, but didn’t notice him smelling from a distance. Simple life. I imagine the most extravagant thing about living on this ship is the fancy food we get to eat and the huge choice of movies—and the no-brainer—being in contact with sharks. Of course I am definitely putting some time into my hobby – photography and boy have I got thousands of interesting shots. I like it. I can easily see how people make this life style a permanent one. The hardest thing about it is missing your family and I do miss Rob and Hooch! Now my goal is to bring parts of this life style with me when I return to land, that will be the challenge and goal! How is your life simple and how is complicated?

Question of the Day

Make a list of things that complicate your life. Make a list of things that simplify your life.

Question of the trip: Which hook, the J or Circle, will catch more sharks?

Please make a hypothesis. Utilize resources to justify your hypothesis. ———Yes, you get extra credit for this.

July 27, 2007April 1, 2021

Elizabeth Eubanks, July 27, 2007

NOAA Teacher at Sea
Elizabeth Eubanks
Onboard NOAA Ship David Starr Jordan
July 22 – August 3, 2007

Mission: Relative Shark Abundance Survey and J vs. Circle Hook Comparison
Geographical Area: Pacific Ocean, West of San Diego
Date: July 27, 2007

Weather Data from the Bridge
Visibility: 8-10 miles
Air temperature: 17.0 degrees C
Sea Temperature at 350m: 7 degrees C
Sea Temperature at surface: 19.0 degrees C
Wind Direction: 290 W Wind Speed: 18 kts
Cloud cover: clear –some cumulus, cirrus
Sea Level Pressure: 1013.2 mb
Sea Wave Height: 2-3 ft
Swell Wave Height: 2-3 ft

Science and Technology Log

“First, do no harm.” –Michael J. Zoghby RPT

Today was so exciting. We caught a Mola mola, Ocean Sunfish, and 22 sharks. Many of them were baby Blue sharks and although this team tries very hard to keep all of the sharks alive, some of them are so badly thrashed by the hook and/or line that they don’t make it. Yesterday was the first day that we had our first mortality (dead shark). It was a baby Blue and the gills were just ripped out by the hook. Sad, no one likes to see a dead shark. Everyone is out here to preserve them and keep them safe.

We caught many average size sharks and a few really large ones. Watching the scientist work on the large animals has got to be one of the most thrilling things to see, especially when they have the extra challenge of wave swells coming across the platform, soaking them and giving the shark a chance to do what it does best… swim. As one of the grad students put it, the pictures and videos we have taken during these events are not ones you would want your mom to see, the mix of slippery platform, scalpel in hand, swell water pouring in and of course a HUGE SHARK, could be a deadly mixture. But safety comes first. They probably had the shark on the platform for a good 3-5 minutes. The Blue was using every bit of what it had to get off of the platform. It was so exciting that I had to video and take still shots. This shark would’ve been a great choice for the satellite tag because of its size, but they didn’t get a chance to that. They removed what they could of the hook, identified him as a male and struggled to hold him down. The Blue shark was estimated at 220cm. We never did get an actual measurement, because for one thing it appeared to be longer than the platform measuring tape and for another Dr. Kohin made a decision to “just let it go” and that is a direct quote. Safety comes first for shark and for people.

Dr. Suzy Kohin surrounded by a big Blue Shark – notice the eye, the nictitating membrane covers the eye.

More safety notes: Late night we found out that there was a problem with one of the engine fans. So tomorrow morning our set is canceled. We will have to wait to see if they can fix it and if they can’t we go back to San Diego and the trip is over. Why? Because they follow the rule, the only rule you really ever need– First Do No Harm. Extra note: The Ocean Sunfish is an amazing fish. You will see them in the Pacific and at first think that they are sharks, because of their dorsal fin that sticks out of the water. They have been described as one of the most evolved fish and look like a super sized Frisbee.- A great fish to do a little personal research on, if you are into fish. (Sean Maloney – check it out!)

Personal Log

“Bet ya goin’ fishn’ all the time, I’mma goin’ fishin’ too. I bet your life, your lovin’ wife is gonna catch more fish than you, so many fish bite if ya got good bait, here’s a little tip that I would like to relate, I’mma goin’ fish, yes I’m goin’ fishn’ and my babies goin’ fishin too!”

– Not sure who sang or wrote this little diddy first, so I can’t give credit right now – but I didn’t write this “catchy” tune.

I am working/ living on a fishing boat. Dah! It’s a goofy realization that just hit me today. Since I got accepted for this project, I have been in a narrow mindset that I am on a shark research vessel, which I am. I broaden my mindset and hit me that I am also on a fishing vessel. Fishing is what we do when we set and haul the long line. Fishing is what we can do in our spare time. We have bait, we have hooks and we have line. We catch fish. Oh and we cook and eat fish too. We are fishing. Funny, but now it makes my experience even cooler. I have always wanted to work on a fishing vessel.

Right out of high school my girl friend and I had done a heap of research and were planning on moving to Ocean City, MD for the summer. We had spent hours investigating different job possibilities. We had heard that sometimes you spend all your summer working to pay your bills and don’t really get to enjoy the beach, but we didn’t care. She was interested in a job as a waitress and I had sent in a ••• dozen applications to fishing vessels. That is what I really wanted to do. That was my glamour job! I dreamed that I could be the one who baits the hooks and cleans the deck. I figured if I had to spend most of my time working, it should be on the water with fish and people who liked to fish. Anyway, that dream ended with a car crash – no one was killed, just minor injuries but it sure shook up my folks enough to keep me in PA for the summer. So after all these years – I am working and living on a fishing ship. Super cool, huh!

Scientists Suzy Kohin and Russ Vetter tag the Mola mola, Ocean Sunfish

Question of the Day

If you had to pick a research science career, what would you study? What would your problem be?

Question of the trip: Which hook, the J or Circle, will catch more sharks?

Please make a hypothesis. Utilize resources to justify your hypothesis. ———Yes, you get extra credit for this.

July 26, 2007April 1, 2021

Elizabeth Eubanks, July 26, 2007

NOAA Teacher at Sea
Elizabeth Eubanks
Onboard NOAA Ship David Starr Jordan
July 22 – August 3, 2007

Mission: Relative Shark Abundance Survey and J vs. Circle Hook Comparison
Geographical Area: Pacific Ocean, West of San Diego
Date: July 26, 2007

Weather Data from the Bridge
Visibility: 8-10 miles
Air temperature: 18.2 degrees C
Sea Temperature at 404m: 6.8 degrees C
Sea Temperature at surface: 21.3 degrees C
Wind Direction: 300 W
Wind Speed: 18 kts
Cloud cover: clear –cumulus
Sea Level Pressure: 1013.2 mb
Sea Wave Height: 2 ft
Swell Wave Height: 3-4 ft

Science and Technology Log

Being careful, paying attention. Do you know what an assembly line is? It is when a group of people comes together with many individual specific tasks to achieve an overall goal. If you have ever seen the Laverne and Shirley TV show, they work on an assembly line at Shotz Brewery. Here there is an assembly line system too. There is one style when we set the lines with bait and another when we haul. Everyone has a very specific job and if you don’t do your job or pay attention, it can wreck the whole affair. The thing I couldn’t imagine would be to do something like this or have the exact same job everyday and all day. But the way it is done on the ship is easy and pleasant and only lasts for about an hour at a time, which is the perfect time limit. If it were too much longer I would get bored and my mind would wander.

Even though the job is relatively easy, it is so important to be careful and to stay focused. For instance one of the jobs I had today required that I put the bait on the hook. No big deal really- right? – Except that the bait needed to be put on a specific hook type, which someone handed to me, in my case I was baiting the J hooks. The hook was attached to a 50-foot multi-strand steal cable, which is attached to a gangion clip. Still no biggie right? Well, when you are baiting over 100 hooks and there is someone in front of you waiting to grab the hook, because there is 2 nautical mile line that is being pulled or hauled and they have to put the baited line in a specific place it becomes a big deal. We have to move at a steady pace because the line is being hauled out into the ocean at a certain rate. The person who is attaching the ganglions to line really needs to stay focused and be careful as well. Also for this study since we are testing hook effectiveness we need to alternate the J and Circle hook to eliminate variables. In other words we don’t want to be able to say – well all the sharks were caught on the J hooks because we set all of the J hooks first and they got to a longer soak (time in the water) time. Does that make sense? We have to pay attention to the “hooker” and help make certain that they are alternating hooks.

Setting a long line: Ann Coleman from the Monterey Bay Aquarium at the front of the set line waits to put the ganglion on the line, while someone else attaches a buoy. Beyond Ann, the crew is baiting the lines; beyond them, the crew prepares the hook and beyond them the deck crew extends the long line.

Things that could go wrong with baiting the hook: -not putting the bait on well enough -getting your lines tangled with one another -getting your line tangled on yourself or someone else or a part of the ship -not giving the person the correct J or circle hook -not having your hooks baited in a timely manner. Preventatives: Say the word out loud J hook or Circle – helps everyone stay focused -to avoid tangles, don’t bait too many hooks ahead time -have one or two hooks baited ahead of time, incase you get a little behind for some reason -keep an eye on your 50 ft line and straighten it out Is there any job that you are particularly interested in? If so please let me know.

Personal Log

Today I had the early shift, which meant that I woke up at 0530 and started working at 0600. Last night the ship was rockier than it has been and hasn’t let up much all day. When I went outside it was gray, chilly and slightly windy. After the set I went upstairs to read and fell asleep, it was the perfect morning for a good book and a nap. I hibernated a little more after lunch and watched a movie by myself in the crew lounge. Music and Lyrics with Hugh Grant and Drew Barrymore. – Cute movie!

I still feel a little rocky in my tummy on and off, but soda crackers, ginger gum and doing things help take the edge off. Sometimes I wish the boat would just stop rocking for a few minutes! Several folks were fishing for a few hours and pulled in some beautiful Rockfish – several different varieties (species). They caught a species that is on the protected list, which is called a Cowcod Rockfish. They took DNA samples from it. Check it out above. They also caught a large Pacific Mackerel and two flat fish, which they call Sand Daps. I had fun because I got to fillet a few of the Rockfish – something I haven’t done for several years and yeah I can still do it – thanks Dad!

Dr. Russ Vetter holding a Cowcod Rockfish which he took DNA samples from. This fish could be at least 40 years old. — Dr. Russ Vetter holding a Cowcod Rockfish that could be at least 40 years old.

Question of the Day

While we are setting and hauling lines we like to talk and to sing songs. Using a song you already know change the words so that the song has to do with fishing for sharks. Here are some words you might want to use; shark, ray, seal, sea lion, ship, deck, line, haul, set or some others you may think of. Please include the name of the song you are writing the new lyrics to. If you don’t know any songs, write a poem.

Question of the trip: Which hook, the J or Circle, will catch more sharks?

Please make a hypothesis. Utilize resources to justify your hypothesis. ———Yes, you get extra credit for this.

July 25, 2007April 1, 2021

Elizabeth Eubanks, July 25, 2007

NOAA Teacher at Sea
Elizabeth Eubanks
Onboard NOAA Ship David Starr Jordan
July 22 – August 3, 2007

Mission: Relative Shark Abundance Survey and J vs. Circle Hook Comparison
Geographical Area: Pacific Ocean, West of San Diego
Date: July 25, 2007

Weather Data from the Bridge
Visibility: 10 miles
Air temperature: 20.4 degrees C
Sea Temperature at 500m: 6.3 degrees C
Sea Temperature at surface: 21.3 degrees C
Wind Direction: 280 W
Wind Speed: 18 kts
Cloud cover: clear – high cumulus
Sea Level Pressure: 1012.5 mb
Sea Wave Height : 2 ft
Swell Wave Height : 2 ft

NOAA Teacher at Sea Elizabeth Eubanks (right) on the platform taking a DNA sample from a Mako shark.

Science and Technology Log

Today was so exciting. Dr. Suzi Kohin asked me to the join crew down on the platform of the stern of the boat. At the end of the platform is a specially designed cradle in which the shark is placed to record data and issue tags. It was so very, very cool to be that close to sharks. I also got to put two of the tags in the shark. I first used a scalpel blade to make a small incision just below the dorsal fin. Then I place the tag in with a quick jab. The tag is called a spaghetti tag because it is a thin piece of wire with numbers and contact information on it. You can get a reward for calling it in. The other tag is called a Roto tag and it goes on the dorsal fin. This tag states that we have injected oxytetracycline into the shark. When someone turns this tag in with a couple of vertebrate they get $100.00. Next I am handed a pair of forceps and a scalpel blade, I cut a little junk of the dorsal fin and then hand it over to go into a solution for DNA testing. Then the Suzy calls out the estimated weight and we get the Oxytetracycline and I got to inject it into the shark on the belly or ventral side. Oxytetracycline is pretty cool, it is what teens use for acne. But the really great thing about it is that it also stains your bones when you use it. It shows up similar to how you would see the rings on a stump of a tree. So it is a great way for scientist to do bone growth investigation.

Personal Log

Wildlife- Forever I have been tracking all of the birds that I have seen. I don’t particularly keep a count, but I do check them off and write little notes about them in my National Geographic bird book. When I was in wild life biology classes at Penn State Dubois I use to keep track of everything I saw in various books and lists. One huge surprise of this entire summer has been how many new species of birds I have logged. It is amazing. My guess it that I have logged at least 20 new species, which is a lot for me, for one summer. But I really wish I had kept up with my wildlife list as a whole. If I had, I could add a couple species more today. The Common Dolphin (which I actually saw days ago as well), two Blue Whales and a pod of Risso Dolphins – they are beautiful as I am sure you can see from the photo above. Of course now I have an extra challenge with my species list. I like to make sure I get a photo as well – just so that there is no mistake to what I am seeing! If you are into wildlife like I am, I highly recommend you start a list now, it is fun to list where, when and what it was doing when you saw it.

Question of the Day

If I tell you to lie on your ventral side, which side of your body would you lay on? Suppose I told to lie on your dorsal side, what side would you lay on?

Question of the trip: Which hook, the J or Circle, will catch more sharks?

Please make a hypothesis. Utilize resources to justify your hypothesis. ———Yes, you get extra credit for this.