Sam Garson: Alexa, What Fish Is This? September 20, 2024

NOAA Teacher at Sea

Sam Garson

Aboard NOAA Ship Henry B. Bigelow

September 6th – September 25th, 2024

Mission: 2024 Fall Bottom Trawl Survey

Geographic Area of Cruise: Northeast Atlantic Ocean

Date: September 20th, 2025

Weather Data:

Latitude: 35°31’43.1″N

Longitude: 75°16’18.3″W
Wind Speed: N 14.68 kt
Air Temperature:
22.9°C (73°F)

As a participant in NOAA’s Teacher at Sea program, I’ve had the incredible opportunity to see first-hand the innovative tools scientists use to study marine life. One such tool that has become indispensable is the Fisheries Scientific Computing System (FSCS), a specialized software developed to help scientists efficiently process the specimens brought up in trawl nets during research surveys. In this blog, I’ll take a closer look at how the FSCS software guides scientists through the complex task of collecting, analyzing, and recording biological data from the sea’s many inhabitants.

photo of a computer screen displaying the trawl monitoring software. we can see a graph of trawl depth over time. there are other readouts that are not legible.
Trawl Monitoring Software lets the Watch Leaders see if the parameters for a successful trawl were met.
Photo Credit: Sam Garson

What is FSCS?
The Fisheries Scientific Computing System (FSCS) is a powerful, custom-built software that NOAA scientists use to manage the massive amount of data gathered during trawl surveys. Every time a trawl net is brought aboard, scientists are faced with a diverse haul of marine specimens that need to be sorted, identified, measured, and cataloged. FSCS streamlines this entire process, ensuring that data are collected accurately and consistently across multiple surveys and locations.

photo of the computer screen at the cutting station that displays the FSCS program. Currently, the screen shows the list of names of possible science team members, and to the right, the assignments at this station: Cutter - Sabrina Dahl, Recorder - Sam Garson. at the base of the screen is a label that reads DO NOT SPRAY.
FSCS begins with the pair of scientists logging in with their roles of cutter or recorder. Photo Credit: Sam Garson

The FSCS software is designed specifically for the high-paced environment aboard research vessels, where time is of the essence. There are times during a busy string of trawl operations that a net’s worth of samples will barely be complete before the next net is already onboard ready to be dumped into the checker. It operates as a centralized platform, allowing scientists to record and track a variety of biological data, including species identification, lengths, weights, and even environmental conditions like water temperature and depth. By digitizing the data collection process, FSCS not only improves accuracy but also allows the information to be instantly accessible for analysis.

The Trawl Processing Workflow with FSCS
Once a trawl is hauled aboard, the real work begins. First, the catch is emptied into a sorting table called “the checker” where the catch is fed in manageable amounts onto the first conveyor belt and brought up into the sorting table. In the past, this sorting process involved manually recording data on paper, but FSCS has helped this step by providing real-time data entry directly into the system via rugged, waterproof touchscreens and computers.

Once the catch has moved down the sorting table it is processed by the Watch Leader into the system and then fed down the last conveyor belt to the 3 cutting stations. The Watch Leader is responsible for:

  • Species ID: Using guides and reference materials, scientists identify each species brought up in the trawl. This is important because in the paper log days, each container would be re-identified by the cutting team, and mistakes could be made with look-alike species. The system now removes this source of error.
a stack of three smaller screens, some with keypads, showing length and weight readings
Integrated scales and length measuring allow the team to move quickly and efficiently. Photo Credit: Sam Garson

From there, the specimens are processed one by one. For each fish or invertebrate species, scientists enter:

  • Length and Weight: FSCS is connected to precision scales and measuring boards, allowing data to be automatically uploaded into the system.
  • Sex and Maturity: For certain species, scientists may record sex and reproductive status to assess population dynamics.
  • Stomach Contents: For certain species the stomach volume and contents are examined and identified
  • Freeze Sample: Based on the research needs of scientists ashore and programs supported by the trawl, certain species are collected, bagged and frozen for further processing back ashore.

FSCS’s intuitive interface helps guide scientists through this complex process, ensuring no key steps are missed. It also automatically flags any anomalies, such as unusually large or small specimens, prompting scientists to re-check measurements for accuracy.

photo of a computer screen display showing a list of closed drop-down menus titled "Organism 133," "Organism 134," etc to "Organism 148"
Sometimes there is a LOT of processing to do! Photo Credit: Sam Garson

Why FSCS is Important for Marine Research
The FSCS software plays a critical role in ensuring the consistency and accuracy of data collection across NOAA’s bottom trawl surveys. Since the same software is used across different vessels and surveys, it standardizes the way data are collected, which is essential when comparing long-term trends in fish populations and marine ecosystems.

Furthermore, FSCS dramatically reduces the risk of human error, which can be a challenge when processing hundreds or even thousands of specimens in a single day. By integrating measurement devices directly into the software, FSCS ensures that all data are automatically logged without the need for manual entry, reducing errors and speeding up the overall workflow.

This efficiency is particularly important for scientists working in the field, where time is often limited. With FSCS, scientists can process specimens more quickly and move on to analyzing the data, which helps them make faster, more informed decisions about the health of fish populations and ecosystems. The software also allows for real-time data transfer, meaning that the data collected can be immediately uploaded to NOAA’s central databases for use in managing fisheries and conservation efforts.

FSCS and Data-Driven Decisions
The data collected through FSCS are vital for the sustainable management of marine resources. By providing real-time, high-quality data on fish populations, FSCS helps inform decisions about fishing quotas, endangered species protections, and ecosystem conservation measures. The software ensures that scientists have access to accurate, up-to-date information, which is crucial for making data-driven decisions that can have long-lasting impacts on the health of our oceans.

NOAA uses the data collected through FSCS to assess the status of important commercial fish species like cod, haddock, and flounder. These assessments along with commercial catch data form the basis for setting annual catch limits and developing regulations to prevent overfishing and ensure that fish populations remain healthy for future generations.

Personal Log

During my time aboard the NOAA Ship Henry Bigelow, I have had the opportunity to observe the close collaboration between scientists and crew members during trawling operations. Each person, from the captain navigating the ship to the scientists analyzing the catch, contributes their expertise to ensure the success of each trawl. It’s evident that communication and coordination are at the core of every operation, with everyone knowing their role and adapting as needed to changing conditions.

What stands out most is how the team handles the demanding work involved in trawling. The deck crew efficiently deploys and retrieves the nets, often under challenging conditions, while the scientists are quick to sort, measure, and record data on various species. The entire process is a well-practiced routine, yet there is constant attention to detail and safety. This level of cooperation is not just about completing the task but about ensuring that the data collected is reliable and valuable for ongoing research.

Watching the crew and scientists work together has given me a deeper understanding of the complexities involved in marine research. It’s not just the technical skills that matter but the ability to work as a cohesive team, problem-solve on the spot, and maintain a shared focus on the mission. This experience has been an eye-opening look at the dedication and collaboration required to conduct scientific research at sea.

What coding language does a fish use?

Sea++

Did You Know?

A fun fact about sea robins is that they have “legs” and “wings”! While they don’t actually have legs, sea robins possess spiny, modified pectoral fins that look and act like little legs, allowing them to “walk” along the ocean floor. These fins are used to feel for prey like crabs, shrimp, and small fish. Additionally, their large, wing-like pectoral fins can be spread out like a fan, making them look like they’re flying underwater—adding to their unique and quirky appearance!

highly detailed scientific photo of a preserved specimen of a sea robin against a black background
Northern Sea Robin Photo Credit: Harvard Museum of Comparative Zoology

Sue Zupko, Miscellaneous, September 18, 2014

NOAA Teacher at Sea
Sue Zupko
Aboard NOAA Ship Henry B. Bigelow
September 7-19, 2014

Mission: Autumn Bottom Trawl Leg I
Geographical Area of Cruise: Atlantic Ocean from Cape May, NJ to Cape Hatteras, NC
Date: September 18, 2014

Weather Data from the Bridge
Lat 39°10.4’N     Lon 0714°18.7W
Present Weather PC
Visibility 10 nm
Wind 153° 5kts
Sea Level Pressure 1015.1
Sea Wave Height 1-2 ft
Temperature: Sea Water 22.3°C
Air 21°

Science and Technology Log

Flags are just one way the ship communicates. There is equipment which ships use to communicate information to other ships. Ships in the area appear on the Bigelow’s radar. The NOAA Corps can even find out their name and what type of ship it is. It’s almost like an email address which lets you know who is sending you the message. We have had naval vessels, sailboats, yachts, container ships, research vessels, cruise ships, etc. appear on radar.

The Bigelow has a protocol (rule) which says if another ship comes within one mile of our perimeter (the radar even shows the big circle like a halo around its position), the officer on duty must make radio contact and ask them to change course. This is especially important if we are trawling or dropping the bongo (plankton net) or CTD. All this information gets logged into the Deck Log which is an official document. It is critical for the officers to keep accurate information and observations during their watch so others know what has been happening and for future reference should the ship have an emergency.

Last night on the fly bridge I noticed that the green and white lights were on. I knew from talking to Ensign Estela that this was the signal at night for “we are trawling”.

Bridge light controls for signals.
Bridge light controls for signals.

Flags, lights, radar, radio, Facebook , web pages and email. These are all methods the Bigelow has used to communicate while I’ve been aboard.

Personal Log

Dave filets a flounder
Dave filets a flounder

We were sharing stories on our watch and Dave told of when he sailed in the Pacific for a Sea Semester, sailing as mariners of old did. He had to navigate using the stars. We were able to do that on the flying bridge last night. The Big Dipper was visible and it was clear we were traveling NW. Soon, the ship changed course (direction) and headed right toward Polaris (the North Star) so we knew we were traveling north.

This is our last day of trawling. Tomorrow we steam back to Newport and get in late. People are excited to see their families again. I have to wait until Saturday to return home since my plane leaves early that day. We weren’t sure what time we would get in on Friday and there were no later flights for me. I am looking forward to seeing my family, but sad to be leaving the sea. Fortunately, we only had a couple of “rockin’ an a rollin’ ” days which made me feel a little “off”. When that happened, everyone was so kind. Many people asked if I was feeling better when they saw me after the waves died down. Crackers were a big help.

Atlantic City
Atlantic City (courtesy of Wikimedia)

Currently (no pun intended) we are off the Jersey shore and can see Atlantic City.  My mother used to live near the shore when she was a little girl and her father had a boat. She loved the ocean. No doubt the shore has changed quite a bit in 75 years. The ocean is a change agent. Man is, too. Our land, climate, and weather often change as a result of the sea–currents, tides, storms all contribute. We help change the ocean, too. Hopefully, we are getting better about it by not dumping pollutants in as much as we once did. Part of NOAA’s mission is to check for pollutants to help keep the marine environment healthy. Yes, the ocean is vast, but man’s lack of understanding of the ocean causes us to do things which are harmful to the ocean environment. I worry about all the plastics wrapping the fresh foods in the supermarkets now. We used to just pick the items we wanted in the meat and produce sections. Now most things are pre-wrapped and much is processed. We need convenience due to our busy lives, but at what cost to our environment and our health? Perhaps we need to visit the farmer’s market more and ask for meat to be in more biodegradable wrappers.

As I sit here enjoying the sun glistening off the ripples caused by a gentle breeze, I realize how much I love the ocean. Its storms and the wildness of it have my respect, but there is a draw to its vastness, the incredible diversity within it, its changeability, and variety of colors. I am so grateful for this opportunity to discover and learn by sailing with NOAA. So far, I know of at least one of my students who is in college for marine biology. I wonder what influence these NOAA experiences will have on my current and future students.

Miscellaneous Information

The ship has a system similar to your car’s odometer. It measures short trips as well as total miles covered. According to the MX420 GPS on the ship on the bridge, the Bigelow has traveled 54,254 nm.

MX420 GPS shows how many miles it has traveled.
MX420 GPS shows how many miles it has traveled.

Getting ready for processing fish is similar to how fire fighters dress. Jump in the boots, pull up the pants, and you’re ready. We head out to the conveyor belt and sort the fish. Many hands make the work load light. Here we are sorting croakers and weakfish. If one person on the line misses a fish, the next one gets it. Then we consolidate similar species into one container.

After removing a fish’s otolith, they are stored in envelopes and put into this sorting system. The samples are taken back to the lab to determine the age of the fish.


It’s a Win-Win situation. Skilled Fisherman, Steve, catches up on light reading about sharks in the Dry Lab. He then goes out and helps deploy the CTD  and Bongo nets.  He also taught me to mop floors on the bridge.  A skilled fisherman is multi-talented and, as I learned, can do many things very well.

Engineer, Kevin Van Lohuizen
Engineer, Kevin Van Lohuizen

Engineers, such as Kevin Van Lohuizen, who is on temporary assignment from the Reuben Lasker, works often in 107° heat. They are responsible for fixing anything mechanical broken on the ship from the washing machine to toilets to generators. They can “do it all”. Thank goodness for the engineers. Kevin earned his Bachelor’s of Marine Engineering Technology from the California Maritime Academy. By the way, Kevin says you should always have a flashlight with you on a ship in case the lights fail.

Rudder in hold.
Rudder in hold.

The rudder is double-actuated which means it can add a little bit of turning ability . The Bigelow‘s rudder, which turns the ship, has a small turning radius similar to a sports car (turns on a dime) rather than the normal rudder’s radius which is more like a truck (turns take forever and need a lot of space). There are two pumps for the rudder, which are switched daily.

What happens to Styrofoam cups when submerged in a bag to 300 m and are brought back up? My students colored Styrofoam cups with Sharpees and we submerged them. I had it in the dry lab and was asked to open the bag in the wet lab. Why do you think that would be? This bag was totally full when submerged. Look at it afterwards.

Remember that a clean ship is a happy ship? At the end of the last watch, everyone starts cleaning, from the Chief Scientist to the lowly Teacher at Sea.  We were all handed scrub brushes and a pail of soapy water. The deck hands cleaned the net and the deck. The other watch scrubbed all the buckets (I found them on the fantail at 1:30 am doing this).

 

Did You Know?

There are over 26,000 species of bony fish, making fish the most speciose vertebrate animal (by number of species).

Question of the Day

What are plankton and why are they important? Plankton are plants and animals which cannot move on their own and rely on currents and wind to move them. Phytoplankton make about 80% of our oxygen and are the basis of the marine food chain. What do you think?

Vocabulary

Planktos in Greek means “wanderer”. Plankton is derived from this.

Something to Think About

Tallest bar shows most of the fish were measured at that length.
Tallest bar shows most of the fish were measured at that length.

Nicole was explaining that the protocols are set up by scientists looking for certain data about catch. She always seems to know when the jaguar will scream, meaning we need a special measurement or to preserve a sample. She had me pull down a monitor and pull up the fish we were processing at the time and had me pull up a bar graph for that species.  She showed how for every 1 cm of length of the fish, the protocol was to ask for information. When I measured and it was longer or shorter than the average, we had more processing to do. Once we hit our quota for that protocol, the rest were just measured and added in. So, if my fish ranged from 19-21 cm, I would have to do special measurements or get samples for just three fish within that range. If the range was 15-25, it could be a lot more, depending on the lengths of the fish caught. The more fish sampled the more it falls into a bell curve, similar to our heights. You’ll notice some students are tall, others are short, most fall in between. They don’t need to repeat getting the information on every fish–it would probably be pretty close to the same data.

Challenge Yourself

Carry cloth bags to the grocery store rather than using their plastic or paper bags. In many areas stores charge for each plastic bag. Recycle as much as possible and encourage others to do the same. Yes, it takes a little effort, but if more people did this we would reduce our trash going to landfills or into the ocean.

Sunset from flying bridge of the Bigelow
Sunset from flying bridge of the Bigelow

Animals Seen Today

We saw a lot of the same species all day. We collected Sea Robins, rays, skates, and Croakers by the hundreds, even thousands. I was able to measure a 40 pound ray and several large skates. Earlier this week we had rays which were so big, we had to call out all the deckhands from the watch and several scientists to weigh and measure them using the crane. One was 240 pounds and the other just 192 pounds.