Geographic Area of Cruise: Atlantic Ocean, SE US continental shelf ranging from Cape Hatteras, NC (35°30’ N, 75°19’W) to St. Lucie Inlet, FL (27°00’N, 75°59’W)
Date: August 19, 2019
WAVES: Aboard NOAA Ship Pisces: Dolphins, Flying Fish (video has no dialogue, only music)
This video was captured during my NOAA Teacher at Sea cruise aboard NOAA Ship Pisces. During the cruise I spent lots of time outside on the deck gazing into the blue seascape. Here’s some of the footage I collected.
Geographic Area of Cruise: Atlantic Ocean, SE US continental shelf ranging from Cape Hatteras, NC (35°30’ N, 75°19’W) to St. Lucie Inlet, FL (27°00’N, 75°59’W)
Date: August 19, 2019
Tiger Shark! NOAA Ship Pisces Underwater Camera Action (video has no dialogue, only music)
This video is a collection of fish trap camera footage recorded during my NOAA Teacher at Sea adventure aboard NOAA Ship Pisces. Very special thanks to the NOAA science team: Zeb Schobernd – chief scientist and especially Mike Bollinger and Brad Teer – camera and gear experts.
Geographic Area of Cruise: Atlantic Ocean, SE US continental shelf ranging from Cape Hatteras, NC (35°30’ N, 75°19’W) to St. Lucie Inlet, FL (27°00’N, 75°59’W)
Date: August 8, 2019
All Hands on Deck (video has no dialogue, only music)
I made this video while aboard NOAA Ship Pisces as part of NOAA’s Teacher at Sea program. I thought it might be cool to capture the different kinds of work the crew, NOAA Officers, and scientists were doing. Pretty much everyone thought I was a little weird when asking to video just their hands. Oh well. I think it turned out kinda cool.
Special thanks to the folks aboard Pisces. Keep in mind – if anyone in this video gets a hand modeling contract, I get 40%. Thank you. The NOAA science team was particularly helpful: Zeb Schobernd – chief scientist, Todd Kennison, Brad Teer, Mike Bollinger, Zach Gillum, Mike Burton, Laura Bacharach, Dave Hoke, and Kevan Gregalis.
Geographic Area of Cruise: Atlantic Ocean, SE US continental shelf ranging from Cape Hatteras, NC (35°30’ N, 75°19’W) to St. Lucie Inlet, FL (27°00’N, 75°59’W)
Conditions early on Friday morning, Tallahassee, FL
Date: August 2, 2019
Sunset aboard Pisces on my last night.
Gratitude Log:
My time on NOAA Ship Pisces is complete. Huge thanks to the folks who made it possible. I am grateful for the grand opportunity and grateful to the many people who helped me along the way. Starting with Emily and Jennifer at NOAA Teacher at Sea. They made everything smooth and easy on my end. Special thanks for allowing me to participate in Teacher at Sea this year, considering I was originally assigned to go last year. I was unable to go last year because my Dad got diagnosed with cancer right before the trip, and I elected to stay home with him during surgery and treatment. Emily, and the NOAA scientists involved, Zeb and Nate, made this year’s trip preparation a breeze. Thank you. Additionally, my Dad is doing well (and even back on the golf course)!
Processing fish with Mike B (the elder) and Todd K. photo by Mike B (the younger)
In some sense I was the little brother tag along on this cruise. “Aww come on, can I play?” was basically what I was saying each day to the scientists and NOAA officers. They were happy to oblige. Thank you for being patient and supportive while I learned how to work on your team.
Zeb, Todd K, Todd W, and Brad were particularly helpful and knowledgeable and patient – thanks, guys! * Thanks, Brad, for your rocks of the day. Our minds and our chakras benefited.
Thanks to my roommate, Mike B – for being a great roommate and for helping me out with a ton of things (including excellent slow mo footage of the XBT!)
Thanks to the NOAA officers who were always happy to chat and tell me about how things work and about their careers. Thank you CO, XO, Jamie, Luke, Dan, and Jane. * Did you know that all NOAA officers have a college degree in a STEM field?
And thank you to the scientific team of all stars: Dave H for always being hilarious, Zach for being hardworking and friendly to talk with, Mike B for being so wise and having good taste in music, Kevan, for lots of good chats during meal times, and Lauren, for making Oscar the octopus and being so friendly!
Just hanging out in the engine room one more time with Steve. Thanks to Steve and Garet!
Science and Technology Log
Todd W is the Senior Survey Technician. He works on Pisces full time and helped out the science team with running the CTD (conductivity, temperature, depth). Todd also helped me run a few experiments, and was overall real cool with helping me find random stuff during the cruise.
In particular, Todd and I, with Mike B’s help, tricked out the CTD to investigate how colors change with depth. We arts-and-crafted a few color strips and secured them to the CTD along with some GoPros to record video. We wanted to see what happened to various colors as the CTD descended to depth (~90m). See what it looked like at the top vs. the bottom (image below). You can see clearly that indeed the red color disappeared soonest while most everything took on a blue tone. This is because red is the longest wavelength on the visible spectrum and therefore the lowest energy (~ 700 nm); it’s the most easily absorbed by the water. Conversely, blue light has a shorter wavelength (~400 nm), and this means higher frequency and higher energy. I made a video with the footage we collected – coming soon. When it comes out you can see for yourself the reds disappear and the colors shift to blue. We also secured a Styrofoam cup to the CTD in order to watch what happens as the pressure increases on the way down. *See here for my pressure video covering similar topics. The CTD only went down to around 90 meters, but that was still enough to increase the pressure from 1 atm to around 9 atm. This nine fold increase shrunk the cup around 12%. Todd tells stories of taking Styrofoam manikin heads down to 300 + meters and watching them shrink to the size of a shot glass.
Science lab aboard the CTD – testing color and pressure.
In addition to CTD excitement, Todd let me conduct an XBT launch. XBT stands for Expendable Bathythermograph. * This cruise had the highest density of acronyms of any experience in my life. Geez. Here’s a link from NOAA describing XBTs. And my pictures below.
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Bravo, Todd & NOAA Ship Pisces – you got me!!
Don’t worry, my XBT bravery and expertise didn’t go unrewarded.
Neato Fact:
We stopped by the NOAA Beaufort Lab shortly after we docked in Morehead City. Todd K was awesome and showed me around and introduced me to a series of interesting characters – it was nice to see the lab and see what everyone had been talking about. I spent a short time walking near the sea wall outside the lab. I ran into Larisa who pointed out two cute baby green sea turtles. She said that recently they’ve started coming into the inlet to feed. Related neato fact: Hawksbill sea turtles have been shown to exhibit biofluorescence.
Baby green sea turtle.
Personal Log
It’s good to be back on land, and fun to trade the breezy blue ocean seascape for the hot humid green treescape of Tallahassee. I’m busy trying to process the information from the trip and figure out ways to incorporate it into my teaching and lesson plans. Surely it’ll take two forms – a little bit of distilling and planning now, and a slow seep of info from memories later. I’m hoping the trickle of revisited memories pop up at opportune times during the school year for me to take advantage. We’ll see.
I’m back to school in a few days. This is the last full blog. Coming up I’ll post some quick hit blogs with links to some videos. Stay tuned.
Mission: South East Fishery-Independent Survey (SEFIS)
Geographic Area of Cruise: Atlantic Ocean, SE US continental shelf ranging from Cape Hatteras, NC (35°30’ N, 75°19’W) to St. Lucie Inlet, FL (27°00’N, 75°59’W)
On board off the coast of North Carolina – about 45 miles east of Wilmington, NC (34°18’ N, 77°4’ W)
Pisces Route as of July 27, 2019
Date: July 27, 2019
Weather Data from the Bridge:
Latitude: 34°18’ N Longitude: 77°4’ W Wave Height: 3-4 feet Wind Speed: 6.68 knots Wind Direction: 42° Visibility: 10 nm Air Temperature: 28.0°C Barometric Pressure: 1022.4 mb Sky: Partly cloudy
Science and Technology Log
Today, with the help of friends Zeb and Todd, I’d like to take a deep dive into the mission of this cruise. Starting with the fish work up process aboard Pisces, first explained in blog #3. Below is a picture flowchart I drew up to help visualize what’s going on.
NOAA SEFIS Fish Survey Protocol
This sequential process is rather straight forward following steps 1-8, rinse (the gear) and repeat. It’s the before and after; what comes before step 1 and after step 8, that’s important; How and where is the data used. If you follow along into steps 9, 10, 11… you start with the laboratory analysis of the biological samples – otoliths and gonads – used to age the fish, and determine reproductive activity and spawning seasons, respectively. This information is vital to proper management of fisheries. Here’s why.
This cruise, and SEFIS in general, originally came into existence because of red snapper. Scientists determined around 2009 that the red snapper population in the SE Atlantic was at historically low levels. Strict regulations were put in place to help the species rebound. This on its own was a good measure, but only one step. In order to assess the effect of the regulations, scientists would have to monitor the abundance of red snapper in the region. However, charting changes in abundance would not be enough with this species (or with many others) due to the nature of its life cycle and reproduction. See, all populations have a natural age structure balance. This includes species specific traits – like its survivorship curve (how likely it is for an individual to die at different points in their life – for red snapper and many other reef-associated species it’s incredibly high at their larval and juvenile stages). It also includes pertinent developmental characteristics such as when the species is reproductively mature. Like many similar fish, older, mature red snapper have greatly increased reproductive potential, also known as fecundity. So while the population has been bouncing back in terms of numbers, the number of older, mature, more fecund fish is still considerably lower than historical levels; thus the population is still recovering. *this information is gathered from the data collected by scientist here on our SEFIS mission, and others like them.
SEFIS survey site locations.
The next step is to share this data with other scientists who will then, in conjunction with other information on the species, analyze the data and bring the results and conclusions of their analyses to policy makers (FYI, the government is moving towards making governmentally gathered scientific data available to the public). Discussion ensues, and climbs the political decision-making-ladder until allowable catch regulations are determined. Florida fishers, check here for your current snapper regulations or maybe this Fish Rules app will help. Fish safe, my friends!
Morning crew: Mike, Dave, Brad, Me, Todd, Oscar the Octopus, Mike, Zeb
Macabre medieval cutlery? Or otolith extraction gear?
Ultimately this is a tricky and tangled issue of sustainability. Commercial fishermen are understandably upset, as this can threaten their livelihood. Although real, this concern is inherently short sighted, as their long term earnings depend on healthy and robust populations, and ecosystems. The difficult part is to gather the necessary scientific data (very challenging, especially for marine organisms) and marry that to the many financial, social, and political concerns. Comment below with thoughts and suggestions. And while you’re at it, here’s a lovely and quick (fish-related) tutorial overview of this situation in general – the tragedy of the commons – and the challenges of managing our resources.
A quick note about otoliths. Within the fish processing protocol (above) – the most satisfying part is otolith extraction. On board competitions abound: people vie for first chair (the spot in the lab that’s the coolest and best lit) and for the sharpest knives and scissors. Much like a wild west showdown, most important is fastest extraction times. Dave H opts for the classic chisel-through-the-gills technique, while the rest of us opt for the saw-through-the-skull-with-a-knife-and-crack-the-head-open-just-behind-the-eyes technique. While Brad looks to perform the “double-extraction” – both otoliths removed in the tweezers at the same time, I look to perform the please-don’t-slice-my-hand-open extraction. The quest for otoliths is usually straight forward. But sometimes an ill-sliced cut can leave you digging for the tiny ear bones forever.
This leaves us with: Why otoliths? These tiny little ear bones help function in the fish’s vestibular system. That’s a fancy way of saying the balance and orientation system of the fish. They help vertebrates detect movement and acceleration, and they help with hearing. These little bones help you determine your head and body orientation – turn your head sideways, it’s your otoliths who will send the message. All vertebrates, including you, gentle reader, have them. This makes me wonder if folks with exceptional balance and proprioception and court awareness have bigger otoliths? Fish requiring more balance, those that sit and wait to hunt vs. those that swim predominantly in straight lines, have bigger otoliths.
Otoliths are made of layered calcium carbonate (side question – does ocean acidification impact otolith formation? Like it does with other calcium carbonate structures in the ocean?) The fish secretes new layers as it ages: thicker layers during good times, thinner layers during lean times – correlated with summer and winter seasonality – just like with tree rings. Once you dig out the otoliths, they can be analyzed by on-shore scientists who slice ‘em in half and take a really thin slice, deli-meat-style. Voila! You can then count up the rings to tell how old the fish is.
From Andrews et al 2019, published in the Journal of Marine and Freshwater Research: Illustration of a red snapper (top right), a photo of a red snapper otolith (top left), and an image of a cross-section of that otolith (bottom) http://www.publish.csiro.au/MF/fulltext/MF18265
From Hardie and Hutchings 2011, published in the journal Arctic: A cross-section of the sagittal otolith of an Atlantic cod.
Black sea bass otoliths with fingers for size comparison. Photos from Dave Hoke
Yesterday’s Fish Count.
Personal Log:
I’ve been continuing my work aboard the Pisces. Lately the focus has been on conversations with scientists and ship personnel. The source of most of today’s blog came primarily from conversations with Zeb and Todd. They were both super helpful and patient in communicating the goals and mission of this cruise and SEFIS. I’m also trying to contribute some things that might be useful to the NOAA scientists after the cruise is completed, and things that will be helpful to my students now and during the school year – like the drawings and diagrams, along with some upcoming videos (topics include: CTD color and pressure, Underwater footage featuring a tiger shark and hammerhead shark, Waves, All Hands on Deck, and a general cruise video).
The food and mood of the cruise continues to be good. * note: my salad eating has taken a hit with the expiration of spinach and leafy greens – it’s amazing they lasted as long as they did – the stewards, Rey and Dana, are amazing!
General Updates:
The other night I had my first bit of troubled sleeping. The seas were roaring! Actually, just about 6 feet. But it was enough to rock the boat and keep me from falling asleep. It was almost a hypnic jerk every time the ship rolled from one side to the other. Special sensations for when my head dipped below my feet.
Two more book recommendations: a. Newberry Book Award Winner: Call it Courage, by Armstrong Sperry. I loved this book as a little boy. I did a book report on it in maybe the 2nd or 3rd grade. I spent more time drawing the cover of the report than I did writing it. B. A few years ago I read The Wave, by Susan Casey. Great book about the science of waves and also the insane culture of big wave surfers.
I haven’t seen all that much lately in terms of cool biodiversity. The traps did catch some cute swimming crabs, a lionfish, and a pufferfish. * more below.
Zeb won the Golden Sombrero Award the other day. This is a momentous achievement awarded to a chief scientist after six consecutive empty fish traps!
Lauren crafted us an extra special tie-dye octopus named Oscar. He’s wearing the Golden Sombrero in the photo above.
Only 2.5 days till I’m back home. Can’t wait to see my family.
Neato Facts =
Back to general update #3 and today’s neato fact. Both lionfish and pufferfish are toxic. But are they poisonous? Or venomous? Wait. What’s the difference? Both poisons and venoms are characterized as toxins, and often they are used interchangeably. The distinction lies in the means of entry into your body. Venoms get into you via something sharp – you’re either bitten with fangs or stung with stingers or spines. Examples include our friend the lionfish, snakes, and bees. Poisons, conversely, get into you when you eat it. Examples include pufferfish, poison dart frogs,
