David Amidon – NOAA Teacher at Sea Blog

June 13, 2017

David Amidon: All Aboard for Science, June 12, 2017

NOAA Teacher at Sea

David Amidon

Aboard NOAA Ship Reuben Lasker

June 2 – 13, 2017

Mission: Pelagic Juvenile Rockfish Recruitment and Ecosystem Assessment Survey

Geographic Area of Cruise: Pacific Ocean off the California Coast

Date: June 12, 2017

Science Log:

A *Chrysaora colorata* jellyfish with an anchovy

As I end my journey on the Reuben Lakser, I wanted to prepare a post about the people on the ship. As in any organization, there are a lot of different people and personalities on board. I interviewed 15 different people and, looking back, I am particularly amazed by how much “Science” drives the ship. The Chief Scientist is involved in most of the decisions regarding course corrections and the logistics. It is really promising as a science teacher — NOAA offers a place for those interested in science to enjoy many different careers.

The people working on the ship can be grouped into broad categories. I have mentioned the science crew, but there are also fishermen, deck crew, engineers, stewards and, of course, the ship’s officers. If you like to cook, there are positions for you here. Same thing if you want to be an electrician or mechanic. Each of those positions has different responsibilities and qualifications. For example, the engineers need proper licenses to work on specific vessels. All of the positions require ship specific training. For some, working on the ship is almost a second career, having worked in the private sector or the Navy previously. Kim Belveal, the Chief Electrical Technician followed this path as did Engineer Rob Piquion. Working with NOAA provides them with a decent wage and a chance to travel and see new places. For young people looking to work on a ship, these are great jobs to examine that combine different interests together.

All of the officers on the ships are members of the NOAA Commissioned Officer Corps, one of the nation’s seven uniformed services. They have ranks, titles and traditions just like the Navy and Coast Guard. Commander (CDR) Kurt Dreflak, the Commanding Officer, or CO and Lieutenant Commander (LCDR) Justin Keesee, the Executive Officer, or XO, are in charge of everything that happens on the Reuben Lasker. To reach these positions, someone must work hard and be promoted through the NOAA Corps ranks. They make the ultimate decisions in terms of personnel, ordering, navigation, etc. The XO acts as most people think a First Mate would work. What impressed me was how they responded when I asked about why they work for NOAA and to describe their favorite moment at sea. They both responded the same way: NOAA Corps provides a chance to combine science and service – a “Jacques Cousteau meets the Navy” situation. They also shared a similar thought when I asked them about their favorite moments at sea – they both reflected about reaching the “Aha” moment when training their officers. This is definitely something I can relate to as a teacher.

Other NOAA Corps officers have different responsibilities, such as the OPS or Operations Officer, and take shifts on the bridge and on the deck, driving the ship, coordinating trawls and keeping the ship running smoothly in general. Most of the NOAA Corps has a background in marine science, having at least a degree in some science or marine discipline. When I asked them why they decided to work for NOAA, the common response was that it allows them to serve their country and contribute to science. Again, this is an awesome thing for a science teacher to hear!

To emphasize how important science is to the organization, two NOAA Corps officers, LTJG Cherisa Friedlander and LTJG Ryan Belcher, are members of the science crew during this leg of the Juvenile Rockfish Survey. They worked with us in the Science Lab, and did not have the same responsibilities associated with the ship’s operations.

Cherisa provided a lot of background about the NOAA Corp and the Reuben Lasker in particular. I am including her full interview here:

What is your name?
- Lieutenant Junior Grade Cherisa Friedlander
What is your title or position?
- NOAA Corps Officer/ Operations Officer for the Fisheries Ecology Division in Santa Cruz,CA
What is your role on the ship?
- I used to be the junior officer on board, now I am sailing as a scientist for the lab. It is kind of cool to have sailed on the ship in both roles! They are very different.
How long have you been working on the Reuben Lasker?
- I worked on board from 2013-2014
Why did you choose to work on the Lasker?
- I originally listed the RL as one if the ships I wanted after basic training in 2012 because it was going to be the newest ship in the fleet. It was very exciting to be a part of bringing a new ship online. I got to see it be built from the inside out and helped order and organize all of the original supplies. The first crew of a ship are called the plankowner crew of the ship, and it stems from olden times when shipbuilders would sleep on the same plank on the deck while they were building the ship. It is a big task.
  Cherisa (far right) when the Reuben Lasker was commissioned From: https://www.omao.noaa.gov/learn/marine-operations/ships/reuben-lasker
What is your favorite moment on the ship or at sea?
- I was the first Junior Officer the ship ever had and got to plan and be on board for the transit through the Panama Canal!
Why do you work for NOAA?
- I love my job! I come from a service family, so I love the service lifestyle the NOAA Corps offers while still incorporating science and service. I like that every few years I get to see a new place and do a new job. Next I head to Antarctica!
If a young person was interested in doing your job someday, what advice would you give them?
- Explore lots of options for careers while you are young. Volunteer, do internships, take courses, and find out what interests you. The more activities you participate in, the more well rounded you are and it allows you to find a job you will love doing. It is also appealing to employers to see someone who has been proactive about learning new ideas and skills.
Is there anything else you’d like to share about your work or experiences at sea?
- Working at sea can certainly be challenging. I can get very seasick sometimes which makes for a very unhappy time at sea. It can also be hard to be away from family and friends for so long, so I make sure to spend quality time with those people when I am on land. 🙂

Wrapping up a trawl – measuring & bagging

The remainder of the science crew is at different points in their careers and have followed different paths to be a part of this cruise. Students motivated in science can take something from these stories, I hope, and someday join a field crew like this.

San Diego red crabs last haul 1703.JPG — Last Haul- off coast of San Diego Photo by Keith Sakuma

Chief Scientist Keith Sakuma has been part of the Rockfish Survey since 1989. He started as a student and has worked his way up from there. Various ships have run the survey in the past, but the Reuben Lasker, as the most state-of-the-art ship in the fleet, looks to be its home for the near future.

Thomas Adams is an undergraduate student from Humboldt State University. He has kept his eyes open and taken advantage of opportunities as they come up. He has been part of the survey for a few years already and looks to continue his work through a Master’s degree program.

Maya Drzewicki is an undergrad student from the University of North Carolina – Wilmington. She was named as a Hollings Scholar -in her words this is: “a 2 year academic scholarship and paid summer internship for college students interested in pursuing oceanic or atmospheric sciences. I am a marine biology major and through this scholarship program I have learned so much about ocean sciences and different careers.”

Rachel Zuercher is a PhD student associated with the University of California- Santa Cruz. She joined the survey in part because the group has provided her samples in the past that she has used for her research.

Mike Force is a professional birdwatcher who was able to make a career out of something he loves to do. He has been all over the globe, from Antarctica to the South Pacific helping to identify birds. As a freelance contractor, he goes where he is needed. His favorite time at sea was also a common theme I came across- there is always a chance to see something unique, no matter how long you have been on ship.

Ken Baltz

Mike Force at his perch on the Flying Bridge

Ken Baltz is an oceanographer who ran the daytime operations on the ship. He was associated with NOAA Fisheries Santa Cruz lab – Groundfish Analysis Team. As advice to young people looking to get in the field, he suggests they make sure that they can handle the life on the ship. This was a common theme many people spoke to – life on a ship is not always great. Seas get rough, tours take time and you are working with the same group of people for a long time. Before making a career of life on a ship, make sure it suits you!

Personal Log

Sunday, June 11th

I experienced a truly magical moment on the Flying Bridge this evening as we transited off the coast near Santa Barbara. For a good 20 minutes, we were surrounded by a feeding frenzy of birds, dolphins, sea lions and humpback whales. It was awesome! The video below is just a snippet from the event and it does not do it justice. It was amazing!

Monday, June 12th

Sad to say this is my last night on the ship. We had plans to do complete 4 trawls, but we had a family of dolphins swimming in our wake during the Marine Mammal Watch. We had to cancel that station. After we wrapped up, it was clean up time and we worked through the night. The ship will arrive in San Diego early tomorrow morning.

Thank you NOAA and the crew of the Reuben Lasker for an awesome experience!!!

June 12, 2017

David Amidon: Back to Work, June 10, 2017

NOAA Teacher at Sea

David Amidon

Aboard NOAA Ship Reuben Lasker

June 2 – 13, 2017

Mission: Pelagic Juvenile Rockfish Recruitment and Ecosystem Assessment Survey

Geographic Area of Cruise: Pacific Ocean off the California Coast

Date: June 10, 2017

Weather Data:

Latitude: 33 degrees, 43 min North; Longitude: 119 degrees, 32 min West

Air Temp: 16.7 C Water Temp: 16.9 C Wind Speed: 27 knots

Science Log

After our quick stop into port, we were back to the sorting last night.

I will take you though a step-by-step account of the sort.

A science crew member reports to the Bridge for the 30 min Marine Mammal Watch. The fishermen ready the net.
We arrive at the Station. Science crew goes on deck for the Outdoor Marine Mammal Watch. The fishermen put the net in the ocean and begin trawling.
After a 15 minute trawl, the net is hauled in and the Marine Mammal Watch ends.
The crew brings the sample collected in a bucket into the Science Lab.
Based on the size of the catch and the organisms present, the crew determines an appropriate sample size. This time we went with a 250 ml sample as there were a TON of small pyrosomes.

Determining the volume of the total catch

Selecting a mixed subsample

Our 250ml sample
We sort based on visual identification.

Separating the first subset

We found pyrosomes, some anchovy & market squid, as well as flat fish and salps.
People sorting will call out their counts of each species and record the numbers collected.
Isolate a sample of krill to be specifically analyzed. They determine the species in the sample and number of each.

Collecting the krill sample

A krill under the microscope
Determine a second sample size to analyze. At each subsequent sample, we will stop counting specific organisms, such as tonight when we stopped counting the pyrosomes because we had enough data to extrapolate a value for the number collected. Then we stopped counting anchovies, etc. until we are just looking for outliers, or creatures in such low abundance an estimate would not be acceptable.

Selection from larger subsample

Organized sort

Repeat the steps until we have gone through the entire catch.
Afterwards, information is logged into the database and representative samples are measured and recorded.
Sorting the catch
The last step is to prepare samples for onshore analysis. Many labs have a standing request if samples are available, such as 5 Hake or a sample of anchovies. Specifically, the juvenile rockfish will undergo DNA analysis as well as having otoliths removed for further analysis. Basically, fish grow these little ear bones with rings like a tree. The more rings, the longer a fish has been alive. Therefore, the researchers can determine the age and growth rates of the fish based on these features.

Removing otoliths from a rockfish

A rockfish otolithe under the microscope

An Argonaut – basically an octopus with a shell

A Pyrosome under the microscope. This is really a COLONIAL organism, not truly multicellular.

Personal Log

Thursday, June 8th

We arrived in port today, so nothing on the science end to report. As we conducted the trawls the night before, I was still on the night schedule and missed out on a chance to explore San Diego. However, we did go to dinner with the other science personnel that work the daytime shifts, which was nice.

Friday, June 9th

The repairs went well and we returned to the ocean. We arrived at a station just after midnight and worked on 3 trawls. Waves started picking up during the shift. It is supposed to be windy again, which means the waves action will increase too.

Saturday, June 10th

Did I mention the winds were going to pick up? Wow. They were right – and tomorrow won’t be any better. I put the patch back on, which is unfortunate because my major side effect is that it really makes me tired. Or it could be that I have a tendency to visit the Flying Bridge to watch the sun come up.

Tonight we caught adult anchovies – and a lot of them. We ended saving a lot of the catch for other labs and for bait.

The night’s 1st catch 6/10

Starting the sort – check out those adult anchovies!

Adult anchovies vs YOY or Young of the Year

DID YOU KNOW?

At night, the officers piloting the ship keep all the lights off on the bridge. All displays are illuminated with red lights. In this way, the people on the bridge will keep their eyes adjusted to the dark and they will be better prepared to spot potential problems on the water.

At night, bridge displays are illuminated with only red light, which keeps officers’ eyes better adjusted to the dark.

June 9, 2017June 9, 2017

David Amidon: Science @ Sea, June 8, 2017

NOAA Teacher at Sea

David Amidon

Aboard NOAA Ship Reuben Lasker

June 2 – 13, 2017

Mission: Pelagic Juvenile Rockfish Recruitment and Ecosystem Assessment Survey

Geographic Area of Cruise: Pacific Ocean off the California Coast

Date: June 8, 2017

TAS David Amidon with a tray of sorted catch

Different Rockfish species caught 6/8/17

Science and Technology Log

The main scientific research being completed on the Reuben Lasker during this voyage is the Pelagic Juvenile Rockfish Recruitment and Ecosystem Assessment Survey and it drives the overall research on the ship during this voyage. Rockfish are an important commercial fishery for the West Coast. Maintaining healthy populations are critical to maintaining the fish as a sustainable resource. The samples harvested by the crew play an important role in establishing fishery regulations. However, there is more happening than simply counting rockfish here on the ship.

How does it work? Let me try to explain it a bit.

First, the ship will transfer to a specific location at sea they call a “Station.”

Collection stations off the California Coast that the *Reuben Lasker* trawls annually.

For a half hour prior to arrival, a science crew member will have been observing for Marine Mammals from the bridge area. When the station is reached, a new observer from the science crew will take over the watch outside on the deck. The fishermen on the boat crew will then unwind the net and launch it behind the boat. It must be monitored from the deck in order to ensure it is located 30 m below the surface. Once everything is set, then the ship trawls with the net at approximately 2 knots. Everything must be consistent from station to station, year to year in order to follow the standardized methods and allow the data recorded to be comparable. After the 15 minutes, then the crew pulls the net in and collects the sample from the net. This process is potentially dangerous, so safety is a priority. Science crew members can not go on the deck as they have not received the proper training.

Timelapse video of the fishermen bringing in a catch. 6/7/17 (No sound)

Once the sample is hauled in, the science personnel decide which method will be used to establish a representative sample. They pull out a sample that would most likely represent the whole catch in a smaller volume. Then we sort the catch by species. After completing the representative samples, they will eventually stop taking counts of the more abundant organisms, like krill. They will measure the volume of those creatures collected and extrapolate the total population collected by counting a smaller representative sample. Finally, we counted out all of the less abundant organisms, such as squid, lanternfish and, of course, rockfish. After the sample is collected and separated, Chief Scientist Sakuma collects all of the rockfish and prepares them for future investigations on shore.

A selection of species caught off the coast of San Clemente. These include Market Squid, Anchovies, Red Crab, King-of-Salmon (the long ribbonfish), and Butterfish, among others.

NOAA has used this platform as an opportunity. Having a ship like the Reuben Lasker, and the David Starr Jordan before that, collecting the samples as it does, creates a resource for furtAher investigations. During the trawls we have catalogued many other species. Some of the species we analyzed include Sanddab, Salp, Pyrosoma, Market Squid, Pacific Hake, Octopus, Blue Lanternfish, California Headlightfish and Blacktip Squid, among others. By plotting the biodiversity and comparing the levels we recorded with the historic values from the stations, we gain information about the overall health of the ecosystem.

What happens to the organisms we collect? Not all of the catch is dumped overboard. Often, we are placing select organisms in bags as specimens that will be delivered to various labs up and down the coast.

This is a tremendous resource for researchers, as there is really no way for many of these groups to retrieve samples on their own. Rachel Zuercher joined the crew during this survey in part to collect samples to aid in her research for her PhD.

Along with the general species analysis, the team specifically analyzes the abundance of specific krill species. Krill forms the base of the marine ecosystems in the pelagic zone. They are a major food source for many species, from fish to whales. However, different krill species are favored by different consumers. Therefore, an extension of the Ecosystem Assessment involves determining the abundance of specific krill species. Thomas Adams has been responsible for further analyzing the krill collected. He counts out the representative sample and use microscopes to identify the species collected based on their physical characteristics.

Additionally, at most stations a Conductivity, Temperature and Depth cast (CTD) is conducted. Basically, bottles are sent overboard and are opened at a specified depth.

The apparatus for collecting water during CTD casts

Then they are collected and the contents are analyzed. Often these happen during the day prior to the Night Shift taking over, with final analysis taking place after the cruise is complete. This data is then connected with the catch numbers to further the analysis. Ken Baltz, an oceanographer on the ship, uses this information to determine the production of the phytoplankton based on the amounts of chlorophyll detected at depth. This is an important part of the food web and by adding in this component, it makes the picture below the surface clearer.

NOAA Corps’ Ryan Belcher completing the CTD collection for a station.

Finally, there are two more scientific investigations running as we cruise the open seas during the daylight hours. Michael Pierce is a birdwatcher from the Farallon Institute for Advanced Ecosystem Research who is conducting a transect survey of Seabirds and Marine Mammals. He is based on the Flying Bridge and catalogs any birds or marine mammals that pass within 300 meters of the ship’s bow. Although difficult, this study attempts to create a standardized method for data collection of this nature. As he explained, birds are more perceptive than we are – what looks like open ocean really varies in terms of temperature, salinity and diversity below the surface. Therefore, birds tend to favor certain areas over others. These are also important components of the food web as they represent upper level predators that are not collected in the trawl net. Also, on the bottom of the ship transducers are installed that are able to gather information through the EK60 Echosounder. This sonar can accurately identify krill populations and schools of fish underwater. Again, adding the data collected from these surveys help create a much more complete understanding of the food web we are analyzing out on the open sea.

Personal Log

Sunday, June 4

The waves were very active all day. Boy am I glad I’m wearing the patch. There was so much wind and the waves were so high, there was a question if we were even going to send the net out. High wind and waves obviously add an element of concern, especially for the safety of the boat crew working the net.

I spent some of the day up on the Bridge- the section of the boat with all of the navigation equipment. The Executive Officer (XO) gave me an impromptu lesson about using the map for navigation. They have state-of-the-art navigation equipment, but they also run a backup completed by hand and using a compass and straightedge just like you would in math class. Of note – the Dungeness Crab season is wrapping up and many fishermen leave traps in the water to catch them. When the boat is passing through one of these areas, someone will act like a spotter so the boat can avoid getting tangled up. When I was looking with him, we saw some whale plumes in the distance.

We did launch the net twice Sunday night, collecting a TON of krill each time. In the first batch, we also caught some squid and other small prey species. The second trawl was very surprising. Despite cutting it down to a 5 minute trawl, we caught about the same amount of krill. We also caught more squid and a lot of young salmon who were probably feeding on the krill.

Monday, June 5

I am getting used to the hours now – and do not feel as guilty sleeping past 2PM considering we are up past 6 in the morning. It will make for a tricky transition back to “the real world” when I go home to NY!

During the day, spent some time just talking with the science folks and learning about the various tasks being completed. I also spent some time up on the Flying Bridge as they said they had seen some Mola, or Giant Ocean Sunfish (although I did not see them). I did have a chance to make a few videos to send to my son Aiden’s 3rd grade teacher back in NY. It did not work out as well as I had hoped, but considering we are out in the middle of the ocean, I really can’t complain about spotty wi-fi.

Once we started the night shift, we really had a good night. We completed work at 5 stations – which takes a lot of time. We saw a LOT of biodiversity last night – easily doubling if not tripling our juvenile rockfish count. We also saw a huge variety of other juvenile fish and invertebrates over the course of the night. We finally wrapped up at 6:30 AM, what a night!

Tuesday, June 6th

We found out today that we will need to dock the ship prematurely. There is a mechanical issue that needs attention. We are en route straight through to San Diego, so no fishing tonight. However, our timing will not allow us to reach port during the day, so we will get a chance to sample the southernmost stations Wednesday night. Thus is life at sea. The science crew is staying on schedule as we, hopefully, will be back on the water this weekend.

Wednesday, June 7th

After a day travelling to San Diego, we stopped at the stations near San Clemente to collect samples. Being much farther south than before, we saw some new species – red crabs, sardines and A LOT of anchovies. Closer to shore, these counts dropped significantly and krill showed up in numbers not seen in the deeper trawl. Again, I am amazed by the differences we see in only a short distance.

More from our anchovy haul- the bucket contains the entire catch from our second trawl, the tray shows how we analyzed a subset. Also on the tray you find Red Crab, Salps, Mexican Lanternfish and Krill.

June 5, 2017June 7, 2017

David Amidon: The Night Shift, June 4, 2017

NOAA Teacher at Sea

David Amidon

Aboard NOAA Ship Reuben Lasker

June 2 – 13, 2017

Mission: Pelagic Juvenile Rockfish Recruitment and Ecosystem Assessment Survey

Geographic Area of Cruise: Pacific Ocean off the California Coast

Date: June 4, 2017

Science and Technology Log

All of the work for the Juvenile Rockfish Survey is completed at night – we probably will not even get going most nights until after 9 PM. Wonder why so late? Any guesses?

This is a night time operation because we are focused on collecting prey species – we are not catching full grown rockfish, only juveniles which are less than a years old (YOY = Young of the Year). As Keith Sakuma, the Chief Scientist for the Reuben Lasker, explained – this survey gathers information about the juvenile rockfish so that NOAA can pass information onto the states in order to establish a sustainable fishery. This could lead to changes in fishing regulations based on the abundance of the juvenile stocks, which would be adults down the road. They trawl at night for two main reasons- during the day time, the rockfish would simply see the net and swim away. Also, many of the other creatures being catalogued are prey species that hide in the depths during the day to avoid predators, rising to the surface as the night moves on.

The night shift includes the science personnel and the crew of the boat. The boat crew not only operates the ship, but the fisherman also send out the trawl net and bring it back in. While the boat crew rotates on a specified schedule, the night-time science group keeps going until the work is done. However, these two groups are very much in sync and really work well together. This blog entry will be my introduction into the procedures and initial results of our work from the first couple nights. I will provide much more detail in later posts.

The science personnel for this leg of the voyage includes myself and Chief Scientist Sakuma as well as Cherisa and Ryan, who are members of the NOAA Corps; Thomas, an undergrad student from Humboldt State; Rachel, a PhD student at UC-Santa Cruz; and Maya, a Hollings undergraduate scholar from UNC-Wilmington.

Pink shrimp 7 — The Night Crew at work separating species during the shrimp haul. Photo by Keith Sakuma.

The Juvenile Rockfish Survey, boiled to its simplest terms, consists of a midwater trawling net behind the ship, meaning it does not float and it never touches the bottom. Anything caught will be sorted and analyzed by the science crew. In reality, it is a bit more complicated.

First of all, net operations take place at specified stations that the ship revisits periodically and have been used for some time. The stations for a night run on the same latitude line, running west away from the coast.

Before sending the net out, we need to run a Marine Mammal Watch from the bridge for 30 minutes. If a marine mammal, such as a sea lion, dolphin or whale, is spotted, then they make efforts to avoid getting them tangled in their nets, or alter their behavior in any way. Sometimes the trawl for that station has to be abandoned due to wildlife activity, although we have not seen any marine mammals during our investigation so far.

Getting ready for my shift on the Marine Mammal Watch

Once the ship arrives at a station, the boat crew sends out the net. After it reaches the depth of 30m, they trawl for a 15 minute interval. A science crew member is also sent outside on deck to continue the marine mammal watch for the duration of the trawl. Finally, after the time is up, they bring in the net and empty its contents into buckets, which are then transferred to the science crew.

This is when our work began. While we are on the lookout for rockfish, we actually found very few of these. A majority of our catch consisted of pyrosomes and krill. The science crew employed a number of measures to estimate the numbers of these creatures, as counting them one-by-one would have taken a long, long time to do. We did volume approximations and analysis of representative samples for these creatures. When we found fish or other species of note, we would pull the individuals out, classify them and record their lengths. Samples were frozen for use by researchers working at other locations on the West Coast.

Measuring the mantle of a Market Squid. Photo by Rachel Zuercher.

Some examples of the species we collected:

IMG_1459 (1) — Juvenile Rockfish collected off the “Lost Coast”

Sample of other species collected and catalogued, including: Medusa Fish, Gonatus Squid, Thetys and California Headlight Fish

We worked solid through four stations on the first night, wrapping up just before 6 AM. We will be at it again, if weather permits, every night of the voyage.

Personal Log

Thursday, June 1st

This was a very long day. I left my house in Syracuse, NY at 6 AM, flying out of the airport around 8 AM. After a quick transfer in Chicago, I flew in a Boeing 737 all the way to San Francisco. I then made it to Eureka, California around 4 PM (West Coast time) for an overnight stay. Fortunately, I met up a few of the science personnel for dinner who were also headed to the Reuben Lasker in the morning. Eureka was beautiful, surrounded by oceans and redwoods.

Friday, June 2nd

In the morning, we caught a transfer boat at the public marina out to the Reuben Lasker, anchored a few miles away off the coast. Once the passage was done, we settled in and met some of the crew. I even shared a coffee with the CO- or Commanding Officer. Everyone onboard has been so open and welcoming – you can tell they enjoy their work.

Transfer boat that to us to the *Reuben Lasker*

After dinner, we finally got down to sciencing. (That’s my word – I’m sticking to it.) I was impressed by how different the catch was from each station, even though they are only a few miles apart. You can try to start telling a story right there. That’s kind of the point to this whole survey. To try to tell a story about the overall health of the pelagic ecosystem based on representative samples. Piece by piece, year by year, data points can turn into meaning when connections are made. I think it is science in the purest form -gathering data for the sake of having information. By having a long-term data base of information about all of the other creatures collected, not just the rockfish, we can decipher meaning by analyzing population trends and collating them with other phenomena, such as weather, fishing or pollution.

Saturday, June 3rd

I am getting adjusted to the day/night pattern of the Night Shift. I got to sleep around 6:30 AM and woke up close to 2 PM. I was able to grab a quick cereal from the Galley and then started in on some work. Dinner was served at 5 PM – filet mignon with crab legs? The cooks, or stewards, Kathy & Patrick do an amazing job. They also save meals for people running the late schedule. For the next week and change, lunch is served around midnight and breakfast will be close to 6 AM, before we head to sleep.

Today, the wind picked up and the waves kicked up with it. We cruised around the “Lost Coast” and ran two stations at night. We were scheduled for more, but the waves got larger the further the ship is off the coast. Today’s word is shrimp – we hauled in more shrimp than you could count. We also found a number of rockfish in one of the stations, although there were very few found in our second trawl.

Did You Know?

… that there are over 85 species of krill?

http://www.krillfacts.org/1-krill-facts-center.html

May 26, 2017May 30, 2017

Dave Amidon: California – Here I Come! May 25, 2017

NOAA Teacher at Sea
David Amidon
Aboard NOAA Ship Reuben Lasker
June 2 – June 13, 2017

Mission: Pelagic Juvenile Rockfish Recruitment and Ecosystem Assessment Survey

Geographic Area of Cruise: Pacific Ocean -Off the California Coast

Date: May 25, 2017

Weather Data from the Bridge

Since I am still in Central New York, that is not an easy answer. This week – 60s and rain. Last week it was 85, hot & muggy; the week before saw a Frost Advisory. CNY meteorologists certainly earn their keep.

I will be traveling off the coast of California, which I have heard is nice. I expect 50’s to 60’s during the day, warming as we move south.

Science and Technology Log

Not much to report yet as I am still landlocked, but I am looking forward to seeing how the scientists work!

For some background, I pulled some information about the Rockfish Survey from the NOAA Fisheries website, and the official NOAA website of the Reuben Lasker (as well as the Facebook and Wikipedia entries for the vessel).

From the NOAA Office of Marine and Aviation Operations:

Built in Wisconsin by Marinette Marine Corporation and commissioned in 2014, the ship is named after Dr. Reuben Lasker (1929-1988), who served as the director of SWFSC’s Coastal Fisheries Division and as adjunct professor at Scripps Institution of Oceanography, U.C. San Diego. Dr. Lasker built a renowned research group that focused on the recruitment of young fish to the adult population — a topic with implications for fisheries management throughout the world. Reuben Lasker is homeported in San Diego, California.

https://www.omao.noaa.gov/learn/marine-operations/ships/reuben-lasker/about

The Juvenile Rockfish Survey dates back to 1983. Since that time, NOAA has expanded the range of coastline studied and added a great deal in terms of information gathered and instruments utilized. The Reuben Lasker is a very recent addition to the fleet, being commissioned in 2014, and has state of the art instrumentation. Oceanographic data collected includes conductivity, temperature, depth, chlorophyll and light levels as well as turbidity and dissolved oxygen concentration.

I will have to brush up on my rockfish (Sebastes spp.), as there 16 species that can be caught off the California coast, according to the California Department of Fish and Wildlife. There are many other species that are documented during the survey, including juvenile and adult Pacific whiting (Merluccius productus), juvenile lingcod (Ophiodon elongatus), northern anchovy (Engraulis mordax), Pacific sardine (Sardinops sagax), market squid (Loligo opalescens), Humboldt squid (Dosidicus gigas), krill (Euphausiacea). Data gathered includes the number and size of individuals collected. Rockfish will also have genetic tissue samples and otoliths (used for daily aging) taken. Finally, the crew conducts a seabird and marine mammal count as well.

Pelagic Juvenile Rockfish Recruitment and Ecosystem Assessment Survey

Personal Log

I would like to start this section by stating how deeply honored I am to be selected for the Teacher @ Sea program and I want to thank NOAA for giving me this chance to further stretch my horizons. I have always seen science as more than just a class trapped in a four wall classroom, and I have been fortunate enough to take advantage of a few very exciting opportunities. Every time, I add to my repertoire, my knowledge base and my network. I can not tell you how excited I am to be able to take advantage of this opportunity from NOAA. Although I have been teaching science for almost 20 years, I have not done much in terms of field work. It is one thing to promote the exciting work being done in the world of STEM, but I feel it is another to actually talk from experience. I aim to bring as much of the field work from the Reuben Lasker to my classes as I can – and I am already thinking about how I might do that.

I am definitely stepping out of my comfort zone on this trip. Not only do I not blog on a regular basis (or ever), but I can not tell you how many times I have been asked “So do you get seasick?” I don’t really know! I have taken a couple cruises and my dad took me fishing on the Great Lakes as a kid, but this voyage will be very different. I’m going with the meds. I hope people find my writing to be informative and entertaining, and that I can be an asset for the program moving forward.

Did You Know?

Otoliths are bony structures behind the brains in fish. They make annual layers and can be counted to determine the age of a fish, like tree rings.

Video excerpt from “Microworlds: How Old is A Fish?” produced by NOAA’s Alaska Fisheries Science Center, available for download here.

Want to try it? Here is an interactive from NOAA’s Alaska Fisheries Science Center: https://www.afsc.noaa.gov/refm/age/interactive.htm