Amy Orchard: Day 1, 2 and 3 – Cool Scientists, Multibeam, Setting Traps, Cetaceans, September 16, 2014

NOAA Teacher At Sea
Amy Orchard
Aboard NOAA Ship Nancy Foster
September 14 – 27, 2014

Mission: Fish Tagging
Geographical area of cruise: Riley’s Hump: Tortugas Ecological Reserve South
Date: September 14, 15, 16, 2014

Weather: September 16, 2014 20:00 hours
Latitude 24° 30’ 30’’N Longitude 83° 09’ 9’’W
Few clouds, clear.  Humidity 10%.
Wind speed 7 knots.
Air Temperature: 28° Celsius (83° Fahrenheit)
Sea Water Temperature: 30.4° Celsius (86.7°Fahrenheit)

SUNDAY:

Getting to Know the Nancy Foster

Scott Donahue, Science Coordinator for Florida Keys National Marine Sanctuary and Chief Scientist for this cruise, brought me aboard and gave me a tour of the Nancy Foster early in the day.  Also there was Tim Olsen, Chief Engineer, who I had met on the plane from Atlanta to Key West.  I was overwhelmed with the capacity of the ship.  It is huge and fully equipped for a wide variety of scientific endeavors, diving, mapping, surveying, launching large equipment etc.  I feel lucky to be a part of what is going on.

Click on these two photos for more information

Short Jaunt into Key West

After taking some time to see Key West, I headed back to the ship where I met Cammy Clark from the Miami Herald who will be with us for one week reporting on our experience. Cammy and I spent the night on the ship awaiting the science team to arrive early tomorrow morning.  The ship is in dock so I can’t yet be sure if I will suffer from sea sickness.  However, I hear that there is 100% survival rate if it does occur!

Click on these two photos for more information

MONDAY:

Meeting the Scientists

During the two weeks aboard, I will be working with 10 scientists from the Florida Fish and Wildlife Conservation Commission (FWC), 7 NOAA Florida Keys National Marine Sanctuary scientists and 2 ROV pilots from the University of North Carolina at Wilmington.  I am excited to be a part this interagency collaboration.  Seems like an efficient way to communicate and share experiences.

Guess which photo shows the scientists I will be working with…

Answer:  PHOTO ON THE RIGHT.  FWC scientists from left to right: Mike McCallister, Jeff Renchen,Danielle Morley, Ariel Tobin (in front), Ben Binder, Paul Barbera.  Not as reserved or stodgy as you might picture a group of scientists, but they are incredibly knowledgeable and dedicated to their work.  They are unbelievably cool people!  They have amazing stories to tell, are easy-going and love to have a good time.  I want to be like them when I grow up!

Preparing to Do Science

One of the many things we will do this week is tagging fish.  To do this, we will travel away from the ship on small boats to set fish traps.  Once the right fish are contained, the dive team will surgically insert an acoustic tag which will allow them to monitor the fish’s movements throughout different reaches of the sanctuary.  This information is important to see the effectiveness of protected areas vs. non-protected areas.

The divers perform this surgery underwater (usually at depths of 95-110 feet) in order to reduce stress on the fish and to avoid air bladder expansion.

Today the divers went out to practice their diving skills before the intense work begins.  I got to travel with them in the small boat.  Even though I am certified to SCUBA dive, only American Academy of Underwater Sciences divers and other divers with official reciprocity are allowed to dive off NOAA ships.  (reciprocity is the word of the day – look it up!)  The diving these scientists do is much more technical than the recreational diving I do in Mexico, but they enjoy it just as much.

Best note of the day:  No sea sickness!  (yet)

dive boat being lowered

The 4 small boats sit on the back deck of the ship and are lowered over the side with a large crane. Once the boat is on the water, we climb down a rope ladder (which is swinging ferociously in the waves!)

me on the small dive boat

The Nancy Foster has four small boats. Three for dive operations and one reserved as a rescue boat. It was exciting to have a different perspective and to see the Nancy Foster out at sea from the small boat. Photo by Linh Nugyen

TUESDAY:

Multibeam Sonar

Last night was the first night I slept on the ship while it was out to sea.  I had a really hard time sleeping as I would awaken every half hour feeling as if I were going to roll over and fall out of my top bunk!  This movement was due to the fact that science is being done aboard the Nancy Foster 24 hours a day.  During the night time, Nick Mitchell and Samantha Martin, the Survey Technicians, are running the Multibeam Sonar which determines ocean depth and creates a map of the sea floor contours.  Using 512  sonic beams, sound is emitted, bounces off the sea bed, then returns to the ship.

See these videos for more information:  http://www.nauticalcharts.noaa.gov/staff/education_animations.htm

The ship would travel out about 3 miles, then turn 180° to make the next pass.  Cruising at about 1 mile every 10 minutes (walking speed) we were turning about every 30 minutes, explaining my rockn’ night!

More on MSB in upcoming posts.

Click on these two photos for more information

Setting Fish Traps

I joined the divers on the small boat to set out the first two traps.  We used cooked and peeled shrimp as bait.  The traps were still empty late afternoon.  Let’s hope they take the shrimp so the tagging can begin!

modified chevron trap

Here sits the modified chevron trap Ben and I will be deploying from our small boat. Divers on a second small boat will follow us, dive down and be sure the trap sits on the ocean floor upright and will set the bait.

trap over board

I am making sure the rope which attaches the float buoys to the trap doesn’t get caught on the boat as the fish trap is deployed into the water. Photo by Nick Mitchell

Here Ben Binder & Survey Technician, Nick Mitchell, record the exact Latitude and Longitude where the trap was set.  Can you figure out the general GPS coordinates for the Tortuga South Ecological Reserve?

Here Ben Binder & Survey Technician, Nick Mitchell, record the exact Latitude and Longitude where the trap was set. Can you figure out the general GPS coordinates for the Tortuga South Ecological Reserve? Need help? Go to http://shiptracker.noaa.gov/

We are focusing on two species during this trip: the Black Grouper and the Cubera Snapper.  These two were selected because they are commercially and recreationally important species.  The FWC’s aim is to monitor the seasonal movement of these species to better understand how the fishes are utilizing the protected areas, as well as those outside of the reserve, so they can make the best management decisions.

I will attach photos of each species that will be taken from the Remotely Operated Vehicle (ROV) in my next blog since this one is getting long…

Challenge Your Understanding

Identify this animal.

I took this photo and video on day 1.  We have seen them each day since!

cetaceans jumping

Am I a porpoise, dolphin or vaquita?

The species in my photo/video is part of the Order Cetacea and the suborder Odontoceti (or toothed whales) which includes the porpoises , dolphins, vaquitas, narwhals and killer whales (to name only a few – there are 67 species in this suborder.)

Go to this website to help you find the correct answer

http://www.nmfs.noaa.gov/pr/species/mammals/cetaceans/

 

Bonus Points – make a COMMENT and share some information you have found about the VAQUITA.

Cool fact – all members of Odontoceti can echolocate.

Junior Docents – add that to your bat interpretations!

The question from my last post about the relationship between Tucson and the Sea of Cortez could be answered with all of the first four answers.  Glad NO ONE chose the last answer!  The sea is an integral part of our lives no matter how far we live from it.

Maggie Flanagan, June 30, 2007

NOAA Teacher at Sea
Maggie Flanagan
Onboard NOAA Ship Oscar Elton Sette
June 12 – July 12, 2007

Mission: Lobster Survey
Geographical Area: Pacific Ocean; Northwest Hawaiian Islands
Date: June 30, 2007

Science and Technology Log – Setting and Hauling Traps 

Maggie Flanagan, scientists, and ship’s crew work together to set lobster traps

Maggie Flanagan, scientists, and ship’s crew work together to set lobster traps

We’ve worked a lot with lobster traps by now, and I’ve had the chance to try every part of the job. The science crew works closely with the experienced fisherman of the ship’s crew – it takes teamwork!  We take turns preparing bait in the early morning.  Thawed mackerel are sliced twice through the middle – be sure to expose the guts which release fluids and oils that are especially attractive to our targets. Later, the traps are set in strings of 8 or 20. Historic data is based on strings of 8, which is why they’re still used even though experience has shown labor is more effective with strings of 20. The traps are all clipped to a gangion, a short line that is spliced (woven) into the length of the ground line (main line of the string) at 20 fathoms (120 feet) apart.  Buoys are clipped in at one end for strings of 8 and at both ends for strings of 20.  A little entertainment comes from the fun names on our buoys which are called out over the radio – Big Momma, 8-ball, Spifferino, Easy Target.  Sadly, we lost the 8-ball float, which is the only gear we’ve lost so far.  Setting baited traps happens from the fantail, or aft working deck, of the ship.  The stackers (scientists on trap duty) lift and shuffle the traps up to the diamond plate (steel non-slip) at the very stern of the ship. A large pallet tub of our line waits there, with eye splices (loops) for attaching gear carefully stacked on a small pipe, keeping the loops ready, in order, and clear from the many coils of line in the tub.   The crew clips a buoy or a trap to a gangion and carefully sends it off the stern.  After beginning the string, the traps slide off on their own with the momentum of the line paying out.

Hauling back lobster traps in the pit aboard OSCAR ELTON SETTE

Hauling back lobster traps in the pit aboard OSCAR ELTON SETTE

Everyone has to be careful to not accidentally step in a loop of line and get dragged off too.  While the traps are going over another crew member, the heaver, manages the tension on the line by guiding it off the stern with a stick in great sweeping arcs.  All the while the Chief Bosun, or supervisor, is in radio communication with the bridge to ensure strings are set at the prescribed depth and location. For our data standards, the traps soak overnight. Hauling back the traps happens in the pit, the low open area along the port side of the ship. The officer at the sticks (steering) operates from a side wing of the bridge, and the Chief Bosun operates the pot hauler, a wheel at the top of a tall J frame that helps pull in the line. As the bridge maneuvers close up to the buoy, a crew member throws the messenger (a 4 pronged type hook) to catch the buoy warp (rope). Once the crew pulls in and unclips the buoy, the ground line is led through the pot hauler, and with a steady hiss the traps are brought up. The pot hauler pauses briefly for each trap to be unclipped, and they’re slid down a table to the crackers (members of the science party) to open. Pretty quickly you open, remove creatures to a bucket, remove old bait, fill new bait, and close the trap. Everything and everyone in the pit gets wet and splashed with mackerel juice.  A bucketeer keeps order of the specimens collected and helps with sharks and eels.  A runner brings the specimens and trap out of the pit. Traps are re-stacked on the fantail and specimens go to the Wet Lab, where the intermediary, assistant, and measurer (more members of the science party) work to catalog them. Overhead, the ground line runs through fair leads (hanging metal circles) back to the pallet tubs on the fantail, where another crew member coils the line back in and stacks the gangion eyes in order.  

The lobsters can surprise you with powerful snaps of their tails.  The assistant has to hold them firmly while the measurer uses a digital caliper to find the length of the carapace (back of the shell) in millimeters. On certain females, we also measure the exopod part of the first left pleopod (appendages under the tail), which can indicate level of maturity.  Females with eggs, spongy masses of tiny round orange or brown specks under the tail, are said to be berried. We also check the lobsters for PIT tags by waving them in front of a scanner – like electronic checkout at the supermarket.  These tags are the same type implanted in pets and if sensed, the scanner shows that lobster’s unique number.  After all the specimens have been recorded, or when a tagged lobster needs to go back in the same quadrant, the intermediary does a dump, releasing them.  Lobsters are dumped through a special cage lowered on the pot hauler, which is designed to deliver them back to the bottom without exposing them to sharks.

Personal Log 

It’s hard to say which job in the lobster survey is my favorite.  Cracking open the traps is certainly the center of the action, but quite a wet, messy job.  Being the measurer makes you feel closely involved with the scientific process, but keeps you working inside.  Stacking empty traps is not as interesting, but happens out in the sun while talking and listening to music. I guess I’m enjoying all the jobs, and certainly learning a lot. Since I began writing, we had to stop our lobster survey for a few days to offer medical assistance to another scientist camping on one of the islands.  It wasn’t life threatening, thank goodness, and we’re back to work soon.

Maggie Flanagan, June 26, 2007

NOAA Teacher at Sea
Maggie Flanagan
Onboard NOAA Ship Oscar Elton Sette
June 12 – July 12, 2007

Mission: Lobster Survey
Geographical Area: Pacific Ocean; Necker Island
Date: June 26, 2007

NOAA Teacher at Sea, Maggie Flanagan, repairs a trap aboard NOAA Ship OSCAR ELTON SETTE.

NOAA Teacher at Sea, Maggie Flanagan, repairs a trap aboard NOAA Ship OSCAR ELTON SETTE.

Science and Technology Log 

We just spent an exciting week setting lobster traps at Maro Reef. Sliced mackerel is our preferred bait, and we scrub the bloody patches that drip to deck every day. We hauled back many lobsters, as well as eels, crabs, urchins, and fish. Shark and Octopus can really break up the traps, and ocean conditions can be hard on the gear, so we make repairs as needed. I was proud to put my sailor skills to work helping to splice new bridles on traps.  (Splicing is weaving a line back into itself to create a loop, which is used to attach the trap to a fishing line).  In the past week our Commanding Officer, Karl F. Mangels, shared a little history on The Marine National Monument area created out of the Northwest Hawaiian Islands.  This status is the most protected, but also complex to initiate.  The US Fish and Wildlife Service, NOAA, and the State of Hawaii, among others, have targeted this area for preservation for many years.  Recently President Bush moved quickly to legalize the Monument status, but it is taking time to work out the details of regulations and procedures, considering the multiple jurisdictions involved.

Regulations indicate all activities must be approved by permit, including scientific research, and all ships must have vessel monitoring systems.  But, access for native Hawaiian cultural activities is preserved as several of the islands are ancient holy sites.  Midway Atoll retains special status and will be open to more public visitation. All commercial fishing in the Monument waters will be phased out by 2011, and oil and gas exploration and extraction is prohibited. Having been part of a research crew in the Monument for a week now, I appreciate all these efforts at conservation. There is little dry land surfacing out of the Pacific here, but the bird life and sea life are precious, including rare seals, sea turtles, and albatrosses.

Watch out when there’s an eel in your trap!  Most of the local species have sharp teeth, and are quick and eager to use them to gain their freedom.

Watch out when there’s an eel in your trap! Most of the local species have sharp teeth, and are quick and eager to use them to gain their freedom.

Personal Log

Working at sea makes me think often of the legacy of sailors before me.  Though he was a global voyager, Captain James Cook’s influence is heavily felt in the Pacific.  He honed his seamanship skills in the coasting collier (coal cargo) trade in Britain and honed his surveying skills in Canada, helping the British Navy fight the French.  He charted the St. Lawrence River and the coast of Newfoundland, but was a surprise choice among his contemporaries for the Pacific voyages due to his lack of noble title and lack of Royal Navy training. His first command aboard Endeavour in 1768 was to observe the transit of Venus viewable from Tahiti.  A replica of Endeavour now sails out of Australia, and for $1,000 Aussie you can too! The mission of Cook’s second voyage to the Pacific in 1772 was to “complete the discovery of the Southern Hemisphere.”  He took command of Resolution and penetrated the Antarctic circle several times.

Both Endeavour and Resolution were converted North Sea colliers, sturdy vessels familiar to Cook from his merchant marine experience. For the third voyage, Resolution also carried the latest equipment, including a Gregory Azimuth Compass, apparatus for distilling fresh water from seawater, and a new five inch marine chronometer, the K1, by Larcum Kendall.  The chronometer provided for even better chart making as it was easier to use than lunar measurements and proved more accurate for finding longitude.  In 1778, sailing to find a northwest passage between the Atlantic and Pacific, Cook encountered the Hawaiian Islands. Natives were friendly to the Captain and his crew, and when Resolution’s foremast cracked badly in February 1779, they returned to Kealakekua Bay on the big island of Hawaii to down rig the mast and float it to the beach for repairs.  Misunderstandings developed as from both sides, resources were taken and tempers flared.

When Cook went ashore with marines to seek settlement, a crowd gathered and became aggressive. Cook shot a Hawaiian, and in the retreat to the bay, Cook was clubbed and stabbed from behind, dying in the surf.  Two other important figures were also witnesses that day in Kealakekua Bay.  William Bligh of Bounty infamy was one of the ship’s officers, and Kamehameha, who unified the islands to become the first King of Hawaii, was nobility of the village ashore. Cook left quite a legacy of knowledge with his charts and logs, and a legacy of British influence around the globe.  He accomplished surveys of the Pacific from Australia to Alaska.  Resolution’s officers demanded Cook’s body be returned, but it came back as pieces of bone and flesh, which were buried at sea.  There is a monument to Captain Cook in the form of an obelisk on Kealakekua Bay, and it’s curious to think that perhaps missing parts of his remains are buried there.  Interestingly, that little part of Hawaii is technically British soil even to this day.  Now, Kealakekua Bay is also a Marine Life Conservation District filled with coral, schools of tropical fish, and even spinner dolphins – another legacy this historic site can offer for the future.