NOAA Teacher at Sea
Aboard NOAA Ship Reuben Lasker
July 17-30, 2017
Mission: West Coast Pelagics Survey
Geographic Area of Cruise: Pacific Ocean; U.S. West Coast
Weather Data from the Bridge: (Pratt, Kansas)
Date: 08/02/2017 Wind Speed: SE at 5 mph
Time: 18:40 Latitude: 37.7o N
Temperature: 29o C Longitude: 98.75o W
Science and Technology Log:
During my last few days aboard the Reuben Lasker before steaming to Bodega Bay for a small boat transfer on July 30th, we were fishing off of the southern Oregon coast. The ship continued to run the longitudinal transect lines using acoustics and collecting data using the continuous underway fish egg sampler (CUFES) during the day and performing targeted trawls for coastal pelagic species (CPS) at night. The weather and the pyrosomes picked up as we moved down the Oregon coast to northern California, but on what would turn out to be the last trawl of my trip in the early morning hours of July 28th, we had our biggest catch of the trip with over 730 kg in the net. Once again we saw 3 of the 4 CPS fish species that are targeted for the survey including the Pacific sardine, Pacific mackerel, and jack mackerel, but no northern anchovies were to be found. The science crew worked efficiently to process the large haul and collect the data that will be used to provide the Southwest Fisheries Science Center (SWFSC) with information that can be used to help understand the dynamics of CPS in the California Current. The data collected from the CPS fish species includes length and weight, otoliths (used to age the fish), gender and reproductive stage, and DNA samples. The information from these different parameters will provide the biologists at SWFSC with information that can be used to understand the nature of the different populations of the CPS fish species that are being studied.
Jack mackerel to process (Photo Credit: Nina Rosen)
Sorted Pacific sardines to be processed
Tubs of pyrosomes
Kip checking reproductive maturity on jack mackerel (Photo Credit: Nina Rosen)
Kip and Sue record length/weight data (Photo Credit: Nina Rosen)
I am home now in southcentral Kansas, but as I am writing this, I can picture the science team beginning preparations for a night of trawling probably just north of Bodega Bay. By now (22:00) it is likely that a bongo tow and the conductivity, temperature and depth (CTD) probe samples have been collected providing data that will be used to calibrate and maximize the effectiveness of the acoustics for the area. Lanora and the rest of the team will have prepped the lab for a night of sampling, weather data will be recorded, and someone (maybe Nina or Austin) will be on mammal watch on the bridge. It all seems so familiar now; I hope the rest of the survey goes as well as the first half of the second leg. I will be thinking about and wondering how the science team of the Reuben Lasker is doing somewhere off the coast of California as I settle in for the night. One thing I am sure of, after spending two weeks aboard the ship, is that the entire crew on the Reuben Lasker is working together, diligently, as a team, using sound scientific practices to produce the best data possible to guide decisions about the fisheries resources in the California Current.
Video Transcription: (Narration by Kip Chambers)
(0:01) Ok, we’re preparing to remove otoliths from a jack mackerel. It’s for the Coastal Pelagic Species survey on the Reuben Lasker, July 27, 2017.
(0:22) We have Phil, from Washington Fish & Game, who’s going to walk us through the procedure.
(0:30) The otoliths are essentially the fish’s ear bones. They help with orientation and balance, and also have annual rings that be used to age the fish.
(0:48) And so the initial cut is – looks like it’s just in front of the operculum and about a blade-width deep.
(1:01) And the secondary cut is from the anterior, just above the eyes and kind of right level with the orbital of the eyes, back to the vertical cut.
(1:22) It’s a fairly large jack mackerel. And, once the skull cap has been removed, you can see the brain case, and you have the front brain and kind of the hind brain where it starts to narrow…
(1:42) … and just posterior to the hind brain, there are two small cavities, and that was the right side of the fish’s otolith,
(1:55) … and that is the left side. And that is very well done. Thank you Phil.
Phill collecting jack mackerel otoliths (Photo Credit: Nina Rosen)
Jack mackerel otoliths (Photo Credit: Nina Rosen)
I wanted to use a portion of this section of the blog to share some comments that were expressed to me from the members of the science team as I interviewed them before I left last week. The first “interview” was with Dave Griffith, the chief scientist for the survey. Dave was kind enough to provide me with a written response to my questions; his responses can be found below.
Chief Scientist Dave Griffith
Q1: Can you tell me a little bit about your background, including education and work history?
Q1: I was born and raised in a small suburb of Los Angeles county called Temple City. Located in the San Gabriel valley at the base of the San Gabriel mountains, it was the perfect place to exercise the love and curiosity of the animals I could find not only in my backyard but also in the local mountains. It wasn’t until I reached high school that I realized I had a knack for sciences especially biology. This interest and appeal was spurred on by my high school teacher, Al Shuey. With little concept of a career, I continued on to a junior college after high school still not sure of my direction. Here I dabbled in welding, art, music and literature but always rising to the surface was my love of sciences. My fate was sealed.
I entered San Diego State’s science program and was able to earn a bachelor’s degree and a master’s degree of science. For my dissertation I studied the re-colonization capabilities of meiofaunal harpacticoid copepods in response to disturbed or de-faunated sediments within Mission Bay. While studying for my masters, I was hired by Hubbs-Sea World Marine Laboratory as the initial group of researchers to begin the OREHAP project which is still operational today. The OREHAP project’s hypothesis was that releasing hatchery reared fish into the wild, in this case white seabass (Atractocion nobilis), would stimulate the natural population to increase recruitment and enhance the population. At the time the white seabass population numbers were at their all time low. During that time of employment at HSWML, I was also teaching zoology at SDSU as a teaching assistant in the graduate program. I was also the laboratory manager and in charge of field studies at Hubbs. My plate was pretty full at the time.
I heard about the opening at the SWFSC through a colleague of mine that I was working with while helping her conduct field work for her Ph.D. at Scripps. I applied and was hired on as the cruise leader in the Ship Operations/CalCOFI group for all field work conducted within CFRD (now FRD) working under Richard Charter. That was 1989. I have now been the supervisor of the Ship Operations/CalCOFI group since 2005.
My main objective on the Coastal Pelagic Fish survey as the cruise leader is to oversee all of the operations conducted by personnel from FRD during the survey. All scientific changes or decisions are made by the cruise leader using science knowledge, logic, common sense and a healthy input from all scientists aboard. I am the liaison between the scientific contingent and the ship’s workforce as well as the contact for the SWFSC laboratory. The expertise I bring out in the field is specific to fish egg identification, fish biology, field sampling techniques, knowledge of the California Current Large Ecosystem and sampling equipment.
Q2: What have you learned from your time on the Reuben Lasker during the 2nd leg of the Pelagic Species Survey?
Q2: First, that you never have preconceived ideas of what you expect to find. You always come out with knowledge of previous studies and a potential of what you might see, but the ocean always will show you and demonstrate just how little you know. When I was beginning in this career I was able to witness the complete dominance of a northern anchovy centric distribution change to a Pacific sardine centric distribution and now possibly back again. It’s mind boggling. I remember one of my colleagues, one of the pre-eminent fish biologists in the field, Paul Smith say to me during these transitions say, “Well, you take everything you’ve learned over the past 40 years, throw it out the window and start over again.” Yeah, the ocean environment will do that to you.
Q3: What advice would you give to a 1st year college student that was interested in pursuing a career in marine science?
Q3: Keep an open mind. Once you enter a four year university you will see areas of study that you never thought or believed existed. Have a concept of where you want to be but don’t ignore the various nuances that you see along the way. Go for the highest degree you feel capable of achieving and do it now because it becomes so much more difficult as you get older or the further away you get from academics if you begin working in a science position.
And last, and I feel most important. Read. Read everything. Journals, magazines, classics, modern novels, anything and everything and never stop. Communication is such an incredibly important part of science and you need to have a command of the language. Not only is reading enjoyable but it will make you a better writer, a better speaker and a better scientist.
I am back home in Kansas now after wrapping up my assignment on the Reuben Lasker and I have started to contemplate my experiences over the last couple of weeks. There are so many facets related to what I have learned during my time on the ship; the technology and mechanics of such a large research vessel are both fascinating and daunting at the same time. There are so many moving parts that all have to come together and work in a very harsh environment in order for the ship to function; it is a testament to the men and women that operate the boat that things operate so smoothly. As impressive as the technology and research is on the Reuben Lasker, it is the people that have made the biggest impact on me.
You can see from Dave’s response above that there are some incredibly talented, dedicated individuals on the ship. I would like to share with you some of my observations about some of those people that I worked with including Dave Griffith. Dave is not only an outstanding scientist that has spent a lifetime making important contributions to fisheries science, he is also an incredibly well rounded person and an encyclopedia of knowledge. I would like to take this opportunity to personally thank Dave for his patience, and willingness to listen and provide insight and advice to me during my time on the ship. In my upcoming blog, I will provide more information about the other members of the science team that I had the pleasure to work with while on board. Until then please enjoy the pictures and video from my last week on the Reuben Lasker.