Valerie Bogan: The Journey Ends, June 20, 2012

NOAA Teacher at Sea
Valerie Bogan
Aboard NOAA ship Oregon II
June 7 – 20, 2012

Mission: Southeast Fisheries Science Center Summer Groundfish (SEAMAP) Survey
Geographical area of cruise: Gulf of Mexico
Date
: Wednesday June 20, 2012

Weather Data from the Bridge:
Sea temperature 28  degrees celsius, Air temperature 26.4 degrees celsius.

 Science and Technology Log:

Well we have come to the end of the cruise so now it is time to tie it all the pieces together.  The Gulf of Mexico contains a large ecosystem which is made up of both biotic (living) and abiotic (nonliving) factors.  We studied the abiotic factors using the CTD which records water chemistry data and by recording information on the water depth, water color, water temperature, and weather conditions.  We studied the living portions of the ecosystem by collecting plankton in the bongo and neuston nets.  The health of the plankton depends on the abiotic factors such as water temperature and water clarity so if the abiotic factors are affected by some human input then the plankton will be unhealthy.  The trawl net allowed us to collect some larger organisms which occupy the upper part of the food web.  Some of these organisms eat the plankton while others eat bigger creatures which are also found in the trawl net.  Despite what they eat all of these creatures depend on the health of the levels below them either because those levels are directly their food or because those levels are the food of their food.

The Gulf of Mexico Ecosystem

An illustration of how the food web in the gulf works. (picture from brownmarine.com)

The ecosystem of the Gulf of Mexico has taken a couple of large hits in the recent past, first with Hurricane Katrina and then with the Deepwater horizon oil spill.  When an ecosystem has undergone such major events it is important to monitor the species in order to determine if there is an effect from the disasters.  Hurricane Katrina left its mark on the people of the Gulf coast but did minimal damage to the biotic parts of the ecosystem.  The effects of the deepwater horizon oil spill are still unknown due to the scope of the spill.

Today’s portion of the ship is the engine room.  I was recently taken on a tour of the engine room by William.  The ship is powered by two diesel engines which use approximately 1,000 gallons of fuel per day.  The ship obviously uses the engines to move from location to location but it also uses the energy to power generators which supply electrical energy, to air condition the ship and to make fresh water out of sea water.

The engines.

The twin diesel engines.

Generators

Generators

There are two vital positions on the Oregon II that I have not discussed, deck worker and engineer.  We could never have collected the samples that we did without the immense help of the deck workers.  They operated the winches and cranes that allowed us to deploy and bring back the nets which captured our samples.  The engineers kept the ship’s engines running, the electricity on, and the rooms cool.  Some of these men started out their careers as merchant marines.  A merchant marine is a person who works on a civilian-owned merchant vessel such as a deep-sea merchant ship, tug boat, ferry or dredge.  There are a variety of jobs on these ships so if you are interested in this line of work I’m sure you could find something to do as a career.  A few merchant marines work as captains of those civilian ships, guiding the ship and commanding the crew in order the get the job done.  More of them serve as mates, which are assistants to the captains.  These people are in training to one day become a captain of their own ship.  Just like on the Oregon II there are also engineers and deck workers in the merchant marines.  Engineers are expected to keep the machinery running while the deck workers do the heavy lifting on the deck and keep the ship in good condition by performing general maintenance.

During this cruise I have met a lot of people who have different jobs all of which are related to collecting scientific data.  The bridge is wonderfully staffed by members of the NOAA Corps.  These men and women train hard to be able to sail research ships around the world.  To find out more about a profession with the NOAA Corps go visit the Corps’ webpage.  There are a large number of scientists on board.  These scientists all specialize in the marine environment and there are many wonderful universities which offer degrees for this field of study.  Go here to get some more information on this scientific pursuit.  The engineers and deck crew keep the ship running. To learn about these professions go to The United States Merchant Marines Academy.  The stewards are instrumental in keeping the crew going on a daily basis by providing good healthy meals.  To learn more about working as a steward read about the Navy culinary school.  The ship could not continue to operate without each of these workers.  Nobody is more or less important than the next–they survive as a group and if they cannot work together the ship stops operating.

Personal Log

Well my journey has come to an end and it is bitter-sweet.  While I’m happy to be back on land, I’m sad to say goodbye to all of the wonderful people on the Oregon II.  When I was starting this adventure I thought two weeks was going to be a long time to be at sea, yet it went by so fast.  Although I’m tired, my sleep and eating schedule are all messed up, and I have some wicked bruises, I would do it again.  I had a great time and in a couple of years I have a feeling I will be once again applying for the Teacher at Sea Program.

It should be no surprise to those that know me best that I love animals which is why I volunteer at the zoo and travel to distant locations to see animals in the wild.  So my favorite part of the trip was seeing all the animals, both those that came out of the sea and those that flew to our deck.  So I’m going to end with a slide show of some amazing animals.

Pelican.

This pelican decided to stop and visit with us for a while.

angel shark

An angel shark

Moray eel

A moray eel

Bat fish

Two bat fishes of very different sizes.

Sand dollar

A sand dollar

Hitchhikers

A group of sea birds decide to hitch a ride for a while.