Latitude: 26.17 Longitude: 81.34 Temperature: 89° F Wind Speeds: ESE 11 mph
Our last day on Oregon II together was filled with lots of hugs and new Facebook friends. I left Pascagoula, MS and arrived back in Naples, FL around midnight. It was nice to be back in my big bed but I really missed the rocking of the ship to put me to sleep.
The next morning I was greeted at my classroom door at 7 am by my students who had a lot of questions. They all had been following along on my blog and have seen a few pictures that were posted. I made a PowerPoint of pictures from the ship so they could see what my living and working arrangements were like. The funniest part was when I showed them my sleeping arrangements. They thought it was great that I was on the top bunk, but surprised at how small the room was and how I didn’t have a TV. (I think some thought it was more like a hotel room – boy were they wrong.) The part they were shocked the most was the size of the shower and the toilet area. I was able to organize my pictures into folders of the same species. I was then able to show them all of the wonderful pictures that the crew, scientists, volunteers and I had taken during our excursion.
The following week a reporter from the Naples Daily News and her photographer came to my classroom to interview me about my trip as well as what the students were learning in AICE Marine.
I was able to bring back with me the one of the 12 foot monofilament line and hook that is attached to the longline. I was able to explain to them how the lines are attached and the process for leaving the longline in the water for exactly an hour. We also started a lesson on random sampling. I discussed how the location for the longline deployment is chosen and why scientist make sure they are randomly chosen.
My biggest surprise was a package I received from my Uncle Tom a few days after I returned home. He is a fantastic artist that paints his own Christmas cards every year. In the package I received he painted the sunset picture I had taken of Oregon II when we were docked in Galveston. It is now hanging in my classroom.
In December I will be presenting about my experiences with
NOAA. Students, their families, and
people from the Naples community will all be welcome to attend. I will be working with fellow colleagues from
other high schools in Naples that also teach marine to spread the word to their
students. My goal is to get as many
students who are interested in a marine career to attend the presentation so
that going forward I will be able to work with them in a small group setting to
help with college preferences and contacts for marine careers.
I can’t thank NOAA enough for choosing me to participate as
the NOAA Teacher at Sea Alumnus. The
experiences I have received and the information I will be able to pass along to
my students is priceless!
Science and Technology Log
My students have been able to see and touch some of the items I was able to bring home from Oregon II that I discussed. I was able to answer so many questions and show them a lot of the pictures I took. We are anxiously awaiting the arrival of a sharp-nosed shark that is being sent to us from the lab in Pascagoula, MS. For students that are interested I will be conducting a dissection after school to show the anatomy of the shark as well as let them touch and feel the shark. (An additional blog will be posted once the dissection is competed)
Geographic Area of Cruise: Pacific Northwest (Off the coast of California)
Weather Data from Marietta, GA:
Latitude: 33.963900 Longitude: -84.492260 Sky Conditions: Clear Present Weather: Hot Visibility: 9 miles Windspeed: Less than 1 knot Temperature: Record high 97 degrees Fahrenheit
It’s been weeks since I disembarked in Newport, Oregon and left Fairweather behind. I still feel like I’m a part of the crew since I was welcomed so seamlessly into any job I tried to learn while Teacher at Sea. However, the crew is still working away as I continue to share my experiences with my students in Marietta, Georgia.
As I have been working on lessons for my classroom, I keep finding fun facts and information about ship life that I didn’t share in my previous posts. So, here is my final post and some of my most frequent questions by students answered:
Question 1: Where did you sleep?
I slept in a berth, I had a comfortable bed, drawers, a locker, and a sink. There was a TV too, which I never watched since a) I like to read more than watch TV and b) the ship would rock me to sleep so fast I could never stay up too long at bedtime!
Question 2: What was the weather like when you were at sea?
Question 3: What animals did you see?
I highlighted animals in all of my posts and linked sites to learn more, go check it out! There is one animal I didn’t include in my posts that I would like to share with you! The first is the California Sea Lionfound in the Newport harbor. You could hear them from across the harbor so I had to go check them out!
See the video below:
Question 4: What happens next with the hydrographic survey work?
This is one of my favorite questions from students! It shows how much you have learned about this very important scientific work and are thinking about what is next. The hydrographic survey maps are now in post processing, where the survey technicians, Sam, Bekah, Joe, and Michelle are working hard to make sure the data is correct. I shared in a previous hydrographic survey blog an example of Fairweather’s hydrographic survey maps, I also checked in with the USGS scientists James Conrad and Peter Dartnell to see what they were doing with their research and they shared some information that will help answer this question.
From Peter Dartnell, USGS research scientist: “Here are a few maps of the bathymetry data we just collected including the area off Coos Bay, off Eureka, and a close-up view of the mud volcano. The map off Eureka includes data we collected last year. I thought it would be best to show the entire Trinidad Canyon.”
From James Conrad USGS research geologist: “Here is an image of a ridge that we mapped on the cruise. The yellow dots are locations of methane bubble plumes that mark seafloor seeps. In the next few weeks, another NOAA ship, the Lasker, is planning to lower a Remotely Operated Vehicle to the seafloor here to see what kinds of critters live around these seeps. Methane seeps are known to have unique and unusual biologic communities associated with them. For scale, the ridge is about 8 miles long.”
So, even though the research cruise is over, the research and follow up missions resulting from the research are ongoing and evolving every day.
Question 5: Would you go back if you could be a Teacher at Sea again?
YES! There is still so much to learn. I want to continue my own learning, but most importantly, lead my students to get excited about the important scientific research while keeping the mission of the NOAA close to their hearts: “To understand and predict changes in climate, weather, oceans, and coasts, to share that knowledge and information with others, and to conserve and manage coastal and marine ecosystems and resources. Dedicated to the understanding and stewardship of the environment.“
Fair winds and following seas Fairweather, I will treasure this experience always.
One hour after the last highflyer is entered into the water it is time to retrieve the longline. The ship pulls alongside the first highflyer and brings it on board. Two people carry the highflyer to the stern of the ship. The longline is then re-attached to a large reel so that the mainline can be spooled back onto the ship. As the line comes back on board one scientist takes the gangion removes the tag and coils it back into the barrel. The bait condition and/or catch are added into the computer system by a second scientist. If there is a fish on the hook then it is determined if the fish can be brought on board by hand or if the cradle needs to be lowered into the water to bring up the species.
Protective eye wear must be worn at all times, but if a shark is being brought up in the cradle we must all also put on hard hats due to the crane being used to move the cradle. Once a fish is on board two scientists are responsible for weighing and taking three measurements: pre-caudal, fork, and total length in mm. Often, a small fin clip is taken for genetics and if it is a shark, depending on the size, a dart or rototag is inserted into the shark either at the base of the dorsal fin or on the fin itself. The shark tag is recorded and the species is then put back into the ocean. Once all 100 gangions, weights and highflyers are brought on board it is time to cleanup and properly store the samples.
Fish Data: Some species of snapper, grouper and tile fish that are brought on board will have their otoliths removed for ageing, a gonad sample taken for reproduction studies and a muscle sample for feeding studies and genetics. These are stored and sent back to the lab for further processing.
It has been a busy last few days. We have caught some really cool species like king snake eels (Ophichthus rex), gulper sharks (Centrophorus granulosus), yellow edge grouper (Hyporthodus flavolimbatus) and golden tile fish (Lopholaatilus chamaeleontiiceps). There have been thousands of moon jelly fish (Aurelia aurita) the size of dinner plates and larger all around the boat when we are setting and retrieving the longline. They look so peaceful and gentle just floating along with the current. When we were by the Florida-Alabama line there were so many oil rigs out in the distant. It was very interesting learning about them and seeing their lights glowing. One of them actually had a real fire to burn off the gases. There were also a couple sharks that swam by in our ship lights last night. One of the best things we got to witness was a huge leatherback sea turtle (Dermochelys coriacea) that came up for a breath of air about 50 feet from the ship.
Mission: Northern Gulf of Alaska Long-Term Ecological Research project
Geographic Area of Cruise: Northern Gulf of Alaska
Date: September 26, 2019
Weather Data from Anchorage, AK:
Time: 14:18 Latitude: 61º13.257′ N Longitude: 149º51.473’ W Wind: North 1 knot Air Temperature: 5.6ºC (42ºF) Air Pressure: 1026 millibars Sunny
As I drove home from Seward yesterday I was overwhelmed by the snow-capped mountains and vibrant fall colors that were such a stunning contrast to the ocean views of the past two weeks. One no less beautiful than the other. I had almost three hours to reflect on my experience out at sea and I can say that the ocean had a powerful impact on me.
Before I summarize my reflections from this trip, I want to
rewind to where I left off on my last blog and give an update of the last leg
of our journey. On Monday afternoon, the
forecast had not improved enough for travel and the decision was made to spend
another night in Kodiak harbor. This was
a difficult call but it seemed like the weather was just getting the better of
us. Many were getting restless with the
extended stay in Kodiak, the lack of ability to collect the necessary data for
research projects and the overall feeling of being trapped (we were docked a
about a mile from town with not much is open on Sundays and Mondays in Kodiak
in late September). On Tuesday morning,
the seas were still forecast to be quite high, but Russ made the call to
attempt to head out to sample the end of the Kodiak line with the day
crew. It was a difficult call, as it
would put us far out to sea if the conditions were bad, but he also risked
missing a key opportunity to get much needed data considering the gaps we had
from the rest of the trip.
We immediately began to encounter large swells leftover from
the previous gale. The ten footers
rocked the boat side to side as we sat in the mess during the transit. By the time we reached the first station, all
of us were a bit pensive. The winds were
beginning to pick up and we were encountering larger swells as we hit the more
open waters of the gulf. After a tenuous
CTD tow and CalVet, Captain John shut down the sampling due to a growing safety
risk and Dan pointed the ship to Seward to begin our 20-hour final journey home.
By sunset the winds had picked up even further to about 30 knots and the seas were getting to 14 feet. It became difficult to move around the ship, but I made my way very carefully to the bridge. Holding on tight with one hand, I was able to video the ship as she moved through the waves. Remember this is 120-foot vessel. Shortly after this the waves made it all the way over the top of the bridge!
By 11pm, no one was able to do anything but try and sit
still and hold on. The winds had picked
up to 40 knots and the sea state to 16 foot swells across our port side. One particular wave really did a number and
the galley and mess took quite the hit.
The food processor, mixer and dishes went flying, amongst other things, and
the ship had to come to a stop for cleanup.
I had a hard time not rolling out of bed was unable to sleep until we
were closer to sheltered waters at around 3am.
When I awoke the next day, Russ shared that in all his years as an
oceanographic researcher he has never had a cruise that encountered such bad
weather and rough seas. I am actually
glad I got to experience it, as I feel like this is the true colors of the Northern
Gulf of Alaska in late September.
Today as I sit back on my couch in Anchorage writing my final blog, I sway back and forth as the ocean swells still exert their power over my inner ear. Below are some my reflections from my experience:
Science is hard on the oceans! The LTER program has a team of scientists attempting to collect important data over a 6-week window from the spring to fall. The problem is that despite the best logistical planning and preparation, mother nature still controls the show. There isn’t a second chance or a next week for data collection for these researchers so they must constantly reevaluate their trip and work closely with the crew to come up with the best plan on a daily and sometimes hourly basis. For some on the cruise, this data is needed to complete a master’s degree thesis this year, for others it is used to publish research based on grant funding requirements. The money cannot be reimbursed due to weather delays or broken equipment. Science in the field is hard and I have the utmost respect for the scientists aboard who did not waver in the face of the stressful cruise conditions and who maintain integrity and quality in their data collection throughout.
A good team is important. Night work is hard work physically and mentally, so I was fortunate to work on the team that I did aboard R/V Tiglax. Jenn was an amazing leader and friend to me during the cruise. I felt comfortable with her from the minute we met and we shared many laughs together. She was able to lead and educate our team, while making it comfortable and fun at the same time. Heidi was the sweetest and kindest person around. Her love of her work was infectious and I found myself very excited to see and help sample the jellyfish that were collected in each Methot. I have no doubt that she will continue to do great work in this field while bringing joy to those around her. Emily is a superstar prospective graduate student at UAF. Her energy and positivity were a welcome addition to our long nights on sampling. Whatever needed done, Emily was ready and willing to jump in. Overall, we settled in quickly as an efficient and productive team. One that I was proud to be part of and one that I will never forget.
Life at sea is challenging and rewarding. The crew of R/V Tiglax spends months away from home working to serve the scientific research community. Their jobs are hard, with only a few days off each season. Their shifts are long, with 12 hour shifts each day, seven days a week. Yet at the same time, each crew member clearly loves being out on the ocean and working in this field. They welcomed us as I am sure they welcome each new team of researchers and made us feel at home aboard their ship. They kept us safe, made us laugh, fed us well and worked their hardest to assure we collected the data that we could. I am not sure I could do their job, but at the same time I am in envy of what they get to experience and see each season out on the ocean. A special thank you to John, Dan, Dave, Jen, Andy and Margo for an experience of a lifetime aboard R/V Tiglax!
The oceans are warm. As we worked far off on the Seward and Middleton lines, just past the continental shelf, we noticed something strange, the seawater coming out of our hose was oddly warm on our hands. Whispers of a return of “The Blob” are circulating in the news as we return to port and we worry we were experiencing it firsthand. “The Blob” was an unusual ocean warming event that occurred in the North Pacific and NGA in 2014-2016. It created a nutrient poor environment that had ripple effects through the ecosystem, and is blamed for massive bird deaths, declines in salmon fisheries and shifts in marine mammal behaviors. It will take time for the CTD data from this cruise to be analyzed to draw conclusions, but this type of event is exactly why the LTER study is so important. We need to know as much as we can about this ecosystem so we can better understand its response and resiliency to major stressors such as a warming ocean.
Ecosystems are infinitely complex. I had no idea the depth and breadth and interconnectivity of the oceanographic research I would experience during my time out at sea. The LTER program is an amazing study that truly attempts to piece together a whole-systems view of the NGA by examining detailed aspects of the chemical, physical and biological ocean environment. Aboard our ship alone we had trace metals investigations, phytoplankton productivity and abundance studies, temperature and salinity modeling and analysis, seabird and marine mammal observations, zooplankton morphological and molecular analysis, and jellyfish abundance and biomass evaluation. Individually this data is valuable for baseline information, but the true importance lies in understanding the interplay between all of these aspects in the ecosystem. I feel we are just beginning to scrape the surface in terms of our understanding of our ocean environment, let alone how we are impacting it. I feel it is imperative that this research continues and that I as a teacher help educate about its importance.
Prior to my departure, my biggest hope for my trip was that I was able to see a sperm whale. I return satisfied, not because I saw a sperm whale, but rather because I saw so much more. I am enthralled by the vastness of the of ocean and the fortitude of life that survives upon and within. I am in awe of how little we see and experience by sailing across its surface or even dropping in an occasional net. I hope in my lifetime I am able to witness more of the ocean’s incredible secrets revealed, without being at the expense of the sea and its inhabitants.
I am anxious to return to my students to tomorrow as I have missed them. I am eager to answer their questions and share my pictures. Additionally, I am so excited to share my story with other teachers across my district and state to encourage them to apply to this amazing program. It was a true honor to be a NOAA Teacher at Sea, and it truly was a birthday gift to remember.
Mission: Northern Gulf of Alaska Long-Term Ecological Research project
Geographic Area of Cruise: Northern Gulf of Alaska – currently
sheltering in Kodiak harbor again
Date: September 23, 2019
Weather Data from the Bridge:
Time: 13:30 Latitude: 57º47.214’ N Longitude: 152º24.150’ E Wind: Northwest 8 knots Air Temperature: 11ºC (51ºF) Air Pressure: 993 millibars Overcast, light rain
Science and Technology Log
As we near the end of our trip, I want to focus on a topic that it is the heart of the LTER study: zooplankton. Zooplankton are probably the most underappreciated part of the ocean, always taking second stage to the conspicuous vertebrates that capture people’s attention. I would argue however, that these animals deserve our highest recognition. These small ocean drifters many of which take part in the world’s largest animal migration each day. This migration is a vertical migration from the ocean depths, where they spend their days in the darkness avoiding predators, to the surface at night, where they feed on phytoplankton (plant plankton). Among the zooplankton, the humble copepod, the “oar-footed,” “insect of the sea,” makes up 80% of the animal mass in the water column. These copepods act as a conduit of energy in the food chain, from primary producers all the way up to the seabirds and marine mammals.
Aboard the R/V Tiglax, zooplankton and copepods are collected in a variety of manners. During the day, a CalVet plankton net is used to collect plankton in the top 100 meters of the water column.
On the night shift, we alternated between a Bongo net and a Multinet depending on our sampling location. The Bongo net is lowered to 200 meters of depth (or 5 meters above the bottom depending on depth) and is towed back to the surface at a constant rate. This allows us to capture the vertical migrators during the night. How do we know where it is in the water column and its flow rate you may ask? Each net is attached to the winch via a smart cable. This cable communicates with the onboard computer and allows the scientists to monitor the tow in real time from the lab.
The Multinet is a much higher tech piece of equipment. It contains five different nets each with a cod end. It too is dropped to the same depth as the Bongo, however each net is fired open and closed from the computer at specific depths to allow for a snapshot of the community at different vertical depths.
Copepod research is the focus of the two chief scientists, Russ Hopcroft and Jennifer Questel aboard R/V Tiglax. Much of the research must occur back in the laboratories of the University of Alaska Fairbanks. For example, Jenn’s research focuses on analyzing the biodiversity of copepods in the NGA at the molecular level, using DNA barcoding to identify species and assess population genetics. A DNA barcode is analogous to a barcode you would find on merchandise like a box of cereal. The DNA barcode can be read and this gives a species level identification of the zooplankton. This methodology provides a better resolution of the diversity of planktonic communities because there are many cryptic species (morphologically identical) and early life stages that lack characteristics for positive identification. Her samples collected onboard are carefully stored in ethanol and frozen for transport back to her lab. Her winter will involve countless hours of DNA extraction, sequencing and analysis of the data.
One aspect of the LTER study that Russ is
exploring is how successful certain copepod species are at finding and storing
food. Neocalanus copepods, a dominate species in our collections, are
arthropods that have a life cycle similar to insects. They have two major life forms, they start as
a nauplius, or larval stage, and then metamorphisize into the copepodite form,
in which they take on the more familiar arthropod appearance as they transition
to adulthood. Neocalanus then spends the spring and summer in the NGA feasting on
the rich phytoplankton blooms. They accumulate fat stores, similar to our
Alaska grizzlies. In June, these lipid-rich
animals will settle down into the deep dark depths of the ocean, presumably
where there is less turbulence and predation.
The males die shortly after mating, but the females will overwinter in a
state called diapause, similar to hibernation.
The females do not feed during this period of diapause and thus must
have stock-piled enough lipids to not only survive the next six months, but
also for the critical next step of egg production. Egg production begins in December to January
and after egg release, these females – like salmon – will die as the cycle
Part of Russ’s assessment of the Neocalanus is to photograph them in the lab aboard the ship as they are collected. The size of the lipid sac is measured relative to their body size and recorded. If females do not store enough lipids, then the population could be dramatically altered the following season. These organisms that are live sorted on the ship will then be further studied back in the laboratory using another type of molecular analysis to look at their gene expression to understand if they are food-stressed as they come out of diapause.
Back in the UAF laboratory, countless hours must be spent on a microscope by technicians and students analyzing the samples collected onboard. To give an idea of the scope of this work, it takes approximately 4 hours to process one sample. A typical cruise generates 250 samples for morphological analysis to community description, which includes abundance, biomass, life stage, gender, size and body weight information. There are three cruises in a season, and thus the work extends well into the spring. To save time, computers are also used to analyze a subset of the samples which are then checked by a technician. However, at this stage, the computer output does not yet meet the accuracy of a human technician. All of these approaches serve to better understand the health of the zooplankton community in the NGA. Knowing how much zooplankton there is, who is there and how fatty they are, will tell us both the quantity and quality of food available to the fish, seabirds and marine mammals that prey upon them. Significant changes both inter-annually and long-term of zooplankton community composition and abundance could have transformative effects through the food chain. This research provides critical baseline data as stressors, such as a changing climate, continue to impact the NGA ecosystem.
After sheltering in Kodiak harbor overnight Friday, we once again were able to head back out during a break in the weather. We departed Kodiak in blue skies and brisk winds on Saturday.
We made it to the start of the Kodiak line by
sundown and began our night of sampling with the goal of getting through six
stations. The swells left over from the
last gale were quite challenging, with safety a top priority this evening. Waves were crashing over the top rale as we
worked and the boat pitched side to side.
Walking the corridor from the stern to the bow required precise timing,
lest you get soaked by a breaking wave, as poor Heidi did at least three times.
Despite having to pull the Methot early on one station and skip it all together on another due to the rough seas, we had an amazingly efficient and successful evening. Our team was amazing to work with and Dan captured one last photo of us as we wrapped up our shift at 6am.
The day crew worked fast and furious on the
return to station one as once again, another gale was forecast. This gale was the worst yet, dipping down to
956 millibars in pressure with the word STORM written across the forecast
screen for the entire Gulf of Alaska.
Luckily we were able to make it back into Kodiak harbor by Sunday
evening just as winds and waves began to build.
After riding out the storm overnight we are still waiting for the 4pm
forecast to reassess our final days two days.
The crew grows weary of sitting idle as the precious window for sampling
closes. Stay tuned for a follow up blog
as I return to solid ground on Wednesday!
Did You Know?
Copepods are the most biologically diverse zooplankton and even outnumber the biodiversity of terrestrial insects!
My last blog left off with a late night longline
going in the water around 9:00pm on 9/23/19.
We were able to successfully tag a great hammerhead, a scalloped
hammerhead, and a tiger shark. We also
caught a blacknose shark, three gafftopsail catfish (Bagre marinus), and three red snappers.
Deploying the Longline
Today I’m going to explain to you the five jobs that we rotate through when we are deploying the longline. When there are about 15-20 minutes before deployment we grab our sunglasses, personal floatation device (pfd) and rubber boats and head to the stern of the ship. All scientists are responsible for helping to cut and bait all 100 gangions (hooks and line). The hooks are 15/0mm circle hooks and the gangion length is 3.7m long. The bait used for this is Atlantic mackerel cut into chunks to fit the hooks. We are all responsible for cleaning the deck and the table and cutting boards that were used.
The first job on the deployment is setting up the laptop computer. The scientist on computer is responsible for entering information when the high flyer, the three weights (entered after first high flyer, after gangion 50 and before final high flyer), and the 100 baited gangions entered into the water. This gives the time and the latitude and longitude of each to keep track of for comparison data.
The second job is the person actually putting the high flyer and buoy in the water. Once the ship is in position and we receive the ok from the bridge it is released into the water. The high flyer is 14ft from the weight at the bottom to the flashing light at the top. (see picture)
The third job is the “slinger”. The slinger takes each hook, one by one, off of the barrel, lowers the baited hook into the water, and then holds the end clamp so that the fourth scientist can put a tag number on each one (1-100). It is then handed to the deckhand who clamps it onto the mainline where it is lowered into the water off the stern.
The final job is the barrel cleaner. Once all the lines are in the water the barrel cleaner takes a large brush with soap and scrubs down the inside and outside of the barrel. The barrels are then taken to the well deck to get ready for the haul in. The last weight and high flyer are put into the water to complete the longline set, which will remain in the water for one hour. Everyone now helps out cleaning the stern deck and bringing any supplies to the dry lab. At this time the CTD unit is put in the water (this will be described at a later time).
Last night was so exciting, catching the three large sharks. During this station I was responsible for the data so I was able to take a few pictures once I recorded the precaudal, fork, and total length measurements as well as take a very small fin sample and place it in a vial, and record the tagging numbers.
Out: Today’s shout out goes to
my wonderful 161 students, all my former students, fellow teachers, especially
those in my hallway, my guest teachers and all the staff and administration at
Palmetto Ridge High School. I would also
like to thank Mr. Bremseth and Michelle Joyce for my letters of
couldn’t have been able to do this without all of your help and support. I have sooo much to tell you about when I get
back. Go Bears!!
Data from the Bridge (at beginning of log)
Latitude: 28.07 Longitude: 93.27.45 Temperature: 84°F Wind Speeds: ESE 13 mph large swells
Science and Technology Log
9/21/19-We left Galveston, TX late in the afternoon once the backup parts arrived. After a few changes because of boat traffic near us, were able to get to station 1 around 21:00 (9:00 pm). We baited the 100 hooks with Atlantic Mackerel. Minutes later the computers were up and running logging information as the high flyer and the 100 hooks on 1 mile of 4mm 1000# test monofilament line were placed in the Gulf of Mexico for 60 minutes. My job on this station was to enter the information from each hook into the computer when it was released and also when it was brought onboard. When the hook is brought onboard they would let me know the status: fish on hook, whole bait, damaged bait, or no bait. Our first night was a huge success. We had a total of 28 catches on our one deployed longline.
We caught 1 bull shark (Carcharhinus leucas), 2 tiger sharks (Galeocerdo cuvier), 14 sharp nose sharks (Rhizoprionodon terraenovae), 2 black tip sharks (Carcharhinus limbatus), 7 black nose sharks (Carcharhinus acronotus), and 2 red snappers (Lutjanus campechanus). There were also 3 shark suckers (remoras) that came along for the ride.
I was lucky to be asked by the Chief Scientist Kristin to tag the large tiger shark that was in the cradle. It took me about 3 tries but it eventually went in right at the bottom of his dorsal fin. He was on hook #79 and was 2300mm total length. What a great way to start our first day of fishing. After a nice warm, but “rolling” shower I made it to bed around 1:00 am. The boat was really rocking and I could hear things rolling around in cabinets. I think I finally fell asleep around 3:00.
9/22- The night shift works from midnight to noon doing exactly what we do during the day. They were able to complete two stations last night. They caught some tilefish (Lopholatilus chamaeleonticeps) and a couple sandbar sharks (Carcharhinus plumbeus). My shift consists of Kristin, Christian, Taniya, and Ryan: we begin our daily shifts at noon and end around midnight. The ship arrived at our next location right at noon so the night shift had already prepared our baits for us. We didn’t have a lot on this station but we did get a Gulf smooth hound shark (Mustelus sinusmexicanus), 2 king snake eels (Ophichthus rex), and a red snapper that weighed 7.2 kg (15.87 lbs). We completed a second station around 4:00 pm where our best catch was a sandbar shark. Due to the swells, we couldn’t use the crane for the shark basket so Kristin tried to tag her from the starboard side of the ship.
We were able to complete a third station tonight at 8:45 pm. My job this time was in charge of data recording. When a “fish is on,” the following is written down: hook number, mortality status, genus and species, precaudal measurement, fork measurement, and total length measurement, weight, sex, stage, samples taken, and tag number/comments. We had total of 13 Mustelus sinusmexicanus; common name Gulf smooth-hound shark. The females are ovoviviparous, meaning the embryos feed solely on the yolk but still develop inside the mother, before being born. The sharks caught tonight ranged in length from 765mm to 1291mm. There were 10 females and 3 male, and all of the males were of mature status. We took a small tissue sample from all but two of the sharks, which are used for genetic testing. Three of the larger sharks were tagged with rototags. (Those are the orange tags you see in the picture of the dorsal fin below).
I spend most of my downtime between stations in the science dry lab. I have my laptop to work on my blog and there are 5 computers and a TV with Direct TV. We were watching Top Gun as we were waiting for our first station. I tried to watch the finale of Big Brother Sunday night but it was on just as we had to leave to pull in our longline. So I still don’t know who won. 🙂 I slept good last night until something started beeping in my room around 4:00 am. It finally stopped around 6:30. They went and checked out my desk/safe where the sound was coming from and there was nothing. Guess I’m hearing things 🙂
Shout out! – Today’s shout out goes to the Sturgeon Family – Ben and Dillon I hope you are enjoying all the pictures – love Aunt Kathy