Beverly Owens: Vacation Cruise – June 13, 2013

NOAA Teacher at Sea
Beverly Owens
Aboard NOAA Ship Henry B. Bigelow
June 10 – 24, 2013
 

Mission:  Deep-Sea Corals and Benthic Habitat: Ground-Truthing and Exploration in Deepwater Canyons off the Northeastern Coast of the U.S.
Geographical Area: Western North Atlantic
Date: June 13, 2013

Weather Data from the Bridge:
Air temperature: 16.70 oC (62.06 oF)
Wind Speed: 25.17 knots (28.96mph)

Science and Technology Log

Waypoints for TowCam expedition

Waypoints for TowCam expedition

“You get to go on a two-week cruise for vacation!”

This is the misconception that some people had, when I told them initially that I would be participating as a NOAA Teacher at Sea.  On a vacation cruise and a research cruise, participants stay an extended period of time on the ocean, and they receive three meals a day.  That is pretty much the end of the similarities between these types of cruises.  During a scientific research expedition, there is a mission to accomplish. For example, this trip is examining sites that are known or predicted to be deep-sea coral and sponge habitats.

Many multibeam bathymetric maps are consulted to find the most suitable sites to investigate. Bathymetric maps are similar to topographic maps with the exception that bathymetry applies to the topography of the ocean floor. Most of the major structure-forming deep-sea corals are found on hard substrate. Thus, areas of soft sediment are not the most likely places to find the majority of coral species, however many other organisms like brittle stars and anemones, may be found there.

There is a lot of preparation that goes into planning and coordinating a research “cruise.” The Chief Scientist must put in a request for a research vessel, and must assemble a science crew that has the skills and research interests that align with the research mission. In the months leading up to the research trip, the science party will discuss specific science objectives, protocols and potential study sites. Every participant must receive medical clearance, which includes having a TB (tuberculosis) test, and a recent tetanus vaccination.

The Chief Scientist, with input from the science team, determines which areas of the ocean to examine, and what type of technology to use to explore the ocean. Weather and waves may prevent some of the “dives” from taking place. Safety first – the conditions must be safe enough for the TowCam operators and deck crew to be outside during deployment as they lower TowCam safely into the ocean.

This bathymetric map displays the topography of the ocean floor.

This bathymetric map displays the topography of the ocean floor.

During TowCam deployments, many things must be done to make the dive successful. The Chief Scientist selects several points (waypoints) along a survey line within a canyon. These points help guide the ship during the TowCam deployment.  To get TowCam into the water requires a lot of communication and coordination of efforts. The winch operator and deck crew are responsible for getting TowCam into the water. The winch operator is in constant contact with the TowCam pilot and  controls the wire that lowers TowCam into the water. At a certain depth, the control is passed to the TowCam pilot in the lab who uses a joystick to lower the camera to the ocean floor.  The pilot and the Bridge are in constant communication during the dive. The Bridge controls the ship and follows the track for the survey. The TowCam pilot analyzes data displayed on several computer monitors in order to make the most informed decisions as they guide the camera through the water column by moving TowCam and up and down in the water column.  In addition, a variety of data are collected during the deployment.  I have been logging data during the night shift deployments. I help keep track of variables  such as depth, winch wire tension, latitude, longitude, and altimeter readings along the survey track.  All this information will be invaluable to scientists examining the data collected during this research cruise.

 Personal Log

At Crest Middle School, we try to teach our students critical thinking skills: think for themselves, make informed decisions, gather data, predict, and draw conclusions. This research trip is a prime example of how skills that students acquire in school will be beneficial for them in the future. When completing a task such as logging data, I have to decide what the important events are that have occurred in the TowCam dive, and to phrase those items in a way that others will understand.

TAS Beverly Owens logging data

TAS Beverly Owens logging data

 Did You Know?

TowCam is about the size of a refrigerator. It has one large high-resolution camera that takes pictures every 10 seconds. It also has a CTD, which records conductivity (salinity), temperature, and depth. TowCam also carries several Niskin bottles, used for water collection at depth and a slurp pump that pulls sediment from the ocean floor into a container for later analyses.

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Kathleen Brown: Last Days at Sea, June 16-17, 2011

NOAA Teacher at Sea
Kathleen Brown
Aboard R/V Hugh R. Sharp
June 7 – 18, 2011

Mission: Sea Scallop Survey
Geographical area of cruise: North Atlantic
Dates: June 16-17, 2011

June 17, 2011

Weather Data from the Bridge
Time: 9:27 AM
Winds 7.2 KTs
Air Temperature: 14.89 degrees C
Latitude 41 47.28 N
Longitude 069 49.13 W

Personal Log

We are headed back into Woods Hole sometime tomorrow.

In one of my conversations with Captain Jimmy, he told me that he likes scientists to “enter the ship as customers and leave as family.” Without a doubt, I feel like the whole R/V Hugh R. Sharp team has made that happen. From the excellent meals cooked three times daily, to the willingness of the crew to answer any of my questions, I have felt included and welcome.

Sunset from the deck

Sunset from the deck

My fellow scientists have made travel on this journey fun and worthwhile. I can’t count the number of times someone yelled over to me, “Hey Kathleen, get a picture of this. Your students will love it!” It has been a pleasure to be around others who are curious and passionate about the sea.

In my classroom, I try to convey to my students that science is about collaboration. I will have many real life examples to share with them when I return.

My thanks to the NOAA Teacher at Sea Program, my colleagues and students at Freeport Middle School, and my family, for supporting me on this adventure of a lifetime!

June 16, 2011

Weather Data from the Bridge
Time: 1:28 PM
Winds 9.3 KTs
Air Temperature: 14.67 degrees C
Latitude 41 08.86 N
Longitude 069 20.97 W

Science and Technology Log

It has been amazing to me to see the variations in the catches from the many tows. When the tension on the wire used to haul the net is high, it might be because we have a huge haul of sea scallops. Sometimes the table will be filled with so many sand dollars it is difficult to see anything else. We had a number of tows that contained large amounts of brittle stars. The arms of the brittle stars move like little worms. (It is eerie to see thousands of them wiggling.) The last tow, in the open area, had only forty-six scallops. The pile was filled with quahogs, urchins, starfish, sea cucumbers, hermit crabs, and rocks. Sometimes the animals we collect are covered in mud and sometimes the sediment is very sandy. We are now traveling in the shipping channel and the sea floor is rocky. Before we began to tow in this area, the scientists put the rock chains on the dredge. There is also a metal chute attached to the table so that the larger rocks can more easily be rolled back into the ocean.

Brittle Stars

Brittle Stars

We have now completed the inventories in the closed areas of Georges Bank. I learn that large areas in the Gulf of Maine had originally been closed as a measure to restore groundfish stocks. What scientists discovered is that, over time, the sea scallops flourished in the closed areas. It was an unintended result of the fisheries management policies.

There is always something interesting to learn about the species that we collect. Sea scallops have the ability to move through the water column by clapping their shells together. Sometimes, moving up five or six inches can mean escape from a predator like a starfish. (Of note, during this study we also count and measure empty sea scallop shells, provided that they are still hinged together. These empty shells are called clappers.) Speaking of starfish, on this trip we have seen five species of starfish, in colors ranging from purple to yellow to orange. The common name for my favorite starfish is sunburst, an animal that looks just like it sounds. Monkfish, sometimes referred to as goosefish, are called an angler fish. There is a modified spine at the top of its mouth that appears as though the fish is dangling bait. With this structure, the monkfish can lure a prey near its enormous mouth (and sharp teeth) and capture it. The longhorn sculpin feel like they hiss or grunt when they are picked up. I have learned that it is likely the sound is the vibration of a muscle in their chest.

Scientist of the day watch

Scientist of the day watch

The technology used to support the science on this survey is remarkable. In the dry lab, there are fifteen computer screens being used to track all of the data collected. These are in addition to the many that are being used to manage the ship. Everything is computerized: the CTD collection, the route mapping, and the information about the species we are catching. After each tow, the Chief Scientist or Crew Chief can immediately plot the data from the catch. Several screens show images from the cameras that are placed at various locations on board the deck. From the dry lab, the scientists can watch the dredge go in and out and view the tension on each cable. When the technology fails, as it did for four hours one day this week, it is up to the crew and scientists to figure out what is wrong and how to fix it.

When the ship is off shore for hundreds of miles, the skills and talents of each individual on board must be accessed for anything that happens out of the ordinary. The Captain is the chief medical officer. The crew acts as firefighters. The scientists and crew work together on mechanical issues – like yesterday when the hydraulics on the CTD stopped working. Working aboard a scientific research vessel is perfect for those who are flexible and innovative.

Personal Log

It is difficult to explain how beautiful the scene from the back deck of the ship looks. All I can see to the horizon lines is dark blue water. Flocks of seagulls follow the ship to scavenge the buckets of fish we throw overboard. Last evening the full moon was bright and round. When I breathe in the salt air, I think about how grateful I am that I am here.

Question of the Day
Why are the rubber rain pants worn by marine workers called “oilers”?

Jeff Grevert, June 14, 2005

NOAA Teacher at Sea
Jeff Grevert
Onboard NOAA Ship Delaware II
June 8 – 16, 2005

Mission: Surf Clam Survey
Geographical Area: New England
Date: June 14, 2005

Skates!

Skates!

Weather Data

Latitude: 40° 28′ N
Longitude: 69° 27′ W
Visibility: < 1nm
Wind Direction: 230°
Wind Speed: 12 kts
Sea Wave Height: 1 ft.
Swell Wave Height: 3 ft.
Sea Water Temp: 10.3° C
Sea Level Pressure: 1004.1 mb
Cloud Cover: 1/8 (Altocumulus)

0000- 0600 Went on watch. Conducted a few trawls which yielded ocean quahogs. Bycatch included little skates and starfish. At the end of my watch I ate breakfast and went to sleep.

1200-1800 Conducted more successful trawls. This was the first day that my watch had two uninterrupted watches.  We got a lot of work done and had good clam yields.  Interesting bycatch included a goosefish. Not knowing any better, my cabin mate stuck his hand in the goosefish’s mouth and got bitten.  At the end of my watch I ate dinner and went to work on my lesson plans.

On the next watch the dredge hit an underwater rock field and got mangled.  The crew and scientists successfully replaced the front blade assembly with a spare. This halted operations for a while but soon we were back to work.

The goosefish has sharp teeth!

The goosefish has sharp teeth!

Jeff Grevert, June 13, 2005

NOAA Teacher at Sea
Jeff Grevert
Onboard NOAA Ship Delaware II
June 8 – 16, 2005

Mission: Surf Clam Survey
Geographical Area: New England
Date: June 13, 2005

Clam sizes

Clam sizes

Weather Data

Latitude: 41° 12′ N
Longitude: 070° 45′ W
Visibility: 2 nm
Wind Direction: 220°
Wind Speed: 13 kts.
Sea Wave Height: 2 ft.
Swell Wave Height: 2 ft.
Sea Water Temp.: 13.3° C
Sea Level Pressure: 1007.9 mb
Cloud Cover: 5/8 (Altocumulus, Cirrus)

Science and Technology Log

We’re back underway 🙂 The repairs went well and the Delaware II set sail at 1400 hours. It was about a three-hour steam to our first sampling station.  Once we arrived, there was time on my watch to conduct one trawl. Only one Ocean Quahog was collected. Some bycatch included sea stars, sponges, sand dollars and a crab. At 1800 hours I went off watch and ate dinner. Later I worked on my lesson plans and collected data from the ship’s weather log.  Currently I’m waiting for my second watch (midnight).  I think I’ll get some rest.

Taking measurements and collecting data

Taking measurements and collecting data