Melinda Storey, June 17, 2010

NOAA Teacher at Sea
Melinda Storey
Onboard NOAA Ship Pisces
June 14 – July 2, 2010

Mission: SEAMAP Reef Fish Survey
Geographical Area of Cruise: Gulf of Mexico
Date: June 17, 2010

Weather Data from the Bridge

Time: 1000 hours (10:00am)
Position: latitude = 26.52.6 N, longitude = 096.46.7 W
Present Weather: 3/8 cloudy
Visibility: 10 nautical miles
Wind Speed: 17 knots
Wave Height: 1-2 feet
Sea Water Temp: 29.5 degrees Celsius
Air Temperature: dry bulb = 29.2 degrees Celsius, wet bulb = 27.5 degrees Celsius

Science and Technology Log

We reached our first research station 40 miles off the coast of Southern Texas sometime in the early morning. To maximize the use of daylight, the scientists begin collecting data one hour after sunrise (around 0730 hours) and work until one hour before sunset (around 1930 hours). At each station, a camera array is lifted and lowered by a crane into the water column, down to the ocean floor.

Camera Array
Camera Array
Camera Array being "dropped" into the ocean by a crane
Camera Array being lowered into the ocean by a crane

The depth of the ocean varies at each station but today the depth was somewhere around 68 meters (223.04 feet). The camera array has 4 sets of cameras pointing in each direction. Each set of cameras contains one video recorder and two still-shot cameras that take turns snapping pictures, sort of like closing your right eye, then your left eye, then your right eye, and so on. The purpose of the still-shots is to help the scientists, along with the use of lasers, to estimate the length of the fish in the images. The cameras stay submerged for 45 minutes and then they are hauled back up to the surface.

The next thing that happens at each station is the lowering of a CTD (conductivity, temperature, and depth) into the water column. The CTD measures the changes in salinity (salt level), temperature, and dissolved oxygen as it passes through the water column.

CTD
CTD
CTD being lowered into the water
CTD being lowered into the water

This data is transmitted directly to a computer graph where a technician watches and monitors to make sure the CTD is working properly and stays within 2 meters of the ocean floor.

CTD data on monitors
CTD data on monitors

The camera array and CTD are lowered at every station, but two stations are chosen randomly to drop a Chevron trap and two stations are chosen randomly to lower a Bandit Reel. The Chevron trap is baited with squid and physically picked up and thrown over the deck. The trap is fitted with weights on the bottom to make sure it lands in the right position on the ocean floor and soaks for one hour before being hauled back to the surface. During the first drop of the trap, we hauled in a giant Warsaw Grouper weighing over 16 kilograms (35.2 pounds)!

Chevron trap
Chevron trap
Mackeral bait for chevron trap
Mackerel bait for chevron trap

The Bandit Reel is like a long line sent straight down to the bottom of the ocean. It has 10 hooks that are baited with fresh mackerel and lowered to soak for 10 minutes.

Bandit Reel
Bandit Reel

Luck was on our side again as the first drop of the bandit reel hooked 9 Red Snapper! This was our first look at the fish that is the main subject of our Reef Fish Survey.

Red Snapper
Red Snapper
Red Snapper
Red Snapper

Personal Log

WHOOO HOOOOO! I’ve just done REAL NOAA science!!!!! Today we are dropping the CTD and the camera ray and then dropping the Bandit Reel line that has 10 hooks. The first Bandit Reel drop we caught 9 big red snapper. The largest one was 1.89 kilos (4.15 lbs).

CTD
CTD
Camera Array
Camera Array

This is the camera array – four cameras take footage of the fish down there.

The next time we dropped the line, they let ME take the snapper off the hook, weigh them, and then measure them. I measured the total length, the fork length, and the standard length. Then I bagged them all up and put them in the freezer to take back to the Pascagoula lab.

Measuring a red snapper

Bagging a Red Snapper
Bagging a Red Snapper
Measuring a red snapper
Measuring a red snapper
Me and a Red Snapper
Me and a Red Snapper

I also got to hold a sucker fish that accidently got caught on the line. Its sucker was on the top of the head. It looked like someone had stepped on his head and left tennis shoe marks! The sucker fish attaches itself to the bottom of a shark and rides along with him. We saw 2 sharks hovering around as we brought up the line which is baited with mackerel. The next time we deployed the Bandit Line they let me bait the hooks with mackerel and then put the hooks on the line. It was great! I love getting messy!

Suckerfish
Suckerfish
Suckerfish
Suckerfish

This is a sucker fish that attaches to shark.

This afternoon the crew got out their personal fishing poles and fished off the stern. The XO caught a shark but he didn’t bring it on board. It was impressive to me. Then we threw out the fish trap that was sunk to the bottom of the ocean. We caught a HUGE Warsaw grouper in the trap. One of the scientist said it was the largest grouper he’d ever seen – 16 kilos (35.2lbs). Its eyes were bulging and its mouth was huge! Teeth and all! Nicolle and I were left alone with it in the bay when it started flopping and flipping all over the place. We squealed like little girls!

Warsaw Grouper
Warsaw Grouper
Warsaw Grouper
Warsaw Grouper
Warsaw Grouper
Warsaw Grouper
Warsaw Grouper
Warsaw Grouper

So far we’ve had two “never seen before” experiences! This is GREAT!

New Term/Vocabulary

Camera array

CTD – conductivity, temperature, and depth

Bandit Reel

“Something to Think About”

Why do you think it’s important to take measurements and weights of the fish for NOAA research? What are they doing with all that research?

“Did You Know?”

Boyle’s Law at Sea

Did you know that when the fish are brought up from the deep (60-70 meters) the decrease in pressure causes the swim bladder to expand? That’s because the swim bladder is full of air and if you’ll remember Boyle’s Law, a decrease in pressure creates an increase in volume. Here you see a swim bladder that came out of the mouth.

Melinda Storey, June 15, 2010

NOAA Teacher at Sea
Melinda Storey
Onboard NOAA Ship Pisces
June 14 – July 2, 2010

Mission: SEAMAP Reef Fish Survey
Geographical Area of Cruise: Gulf of Mexico
Date: June 15, 2010

Weather Data from the Bridge

Time: 2000 hours (8 pm)
Position: latitude = 29.46.02 N, longitude = 088.08.4 W
Present Weather: some cumulus clouds
Visibility: 9 nautical miles
Wind Direction: Variable Wind Speed: Light
Wave Height: 0 feet
Sea Water Temp: 32.6 degrees Celsius
Air Temperature: Dry Bulb = 31 Celsius, Wet Bulb = 30.8 Celsius

Science and Technology Log

This portion of the log will be written by me and my fellow Teacher at Sea, Nicolle von der Heyde from St. Louis, MO. Since we will be cruising for a couple of days to reach our first destination off the coast of southern Texas, we thought we would briefly describe our mission on board Pisces and our first observations of oil in the Gulf of Mexico. We are participating in the first leg of the SEAMAP (Southeast Area Monitoring and Assessment Program) Reef Fish Survey along the continental shelf from Brownsville, TX north to the Flower Garden Banks National Marine Sanctuary. The Chief Scientist on this mission is Paul Felts. Our task will involve sending video cameras down into the water column and onto the ocean floor to record the abundance and relative size of reef fish associated with various geographical features. The video cameras will be submerged for about 45 minutes at a time, starting one hour after sunrise and continuing until one hour before sunset. If conditions are good, Mr. Felts believes we can submerge the cameras about 7-8 times a day. We will view some of the recorded data on the ship to make sure the equipment is working properly, however the analysis will take place back in the laboratory in Pascagoula, MS.

The Pisces left the port of Pascagoula at around 1130 hours (military time, aka 11:30 am) but did not leave the bay until about 1730 hours (5:30 pm).

The Pisces in port
The Pisces in port
Nicolle von der Heyde and Melinda Storey standing in front of the docked Pisces
Nicolle von der Heyde and Melinda Storey standing in front of the docked Pisces

During this time, the ship was cruising back and forth in the bay as engineers conducted tests of the acoustics on the ship. The Pisces, just commissioned in November of 2009, is the quietest vessel in the NOAA fleet and has some of the latest technology on board. Making a ship quiet may not seem like a big deal, but when you are trying to research marine life in an undisturbed natural environment, silent observation is everything. When the engineers finished their testing, a small boat arrived to take 4 of the engineers back to shore. Three other engineers and one intern remained on board to join us on our voyage.

Small boat
Small boat

The signs of oil extraction in the Gulf were apparent the moment we boarded the Pisces in Pascagoula. Across the channel from our ship were two old oil rigs no longer in service, one damaged from Hurricane Katrina and destined to be returned to the bottom of the sea to be made into an artificial reef. This is often done with old military battleships as well as they are sunk to the ocean floor and fish begin to use the vessels as a habitat and to hide from predators. Oil booms were placed around the Pisces and other ships in the channel for protection in case oil made its way into the port.

Oil Boom
Oil Boom

As we headed out to sea, we were surprised at the great number of ships and oil rigs that dotted the horizon. We saw lots of huge tankers that were just anchored, waiting in line to off load their oil into the Chevron refinery. One of the crew told us there are around 43,000 oil wells in the Gulf. Some wells just have pipes attached and pump oil directly through pipes into the refinery. Some wells have rigs that drill deep into the ocean floor. The Deepwater Horizon that exploded in the Gulf was this type of rig. We also saw one rig that had a flame coming out at the very top of the rig. This was the burning off of natural gas. Our Commanding Officer told us that they “burn off” natural gas for two reasons – safety and economics. All rigs let off a certain amount of excess gas and it’s more economical to burn it off rather than pipe it all the way back to the mainland. Also, burning off the excess gas keeps it from building up pressure, which is very dangerous.

It wasn’t until a few hours after leaving the bay that the officers on the bridge notified us that we were traveling through the oil slick. As we looked over the deck of the bridge, we saw a rainbow of sheen on the surface and even some reddish “emulsified” oil. On the map on the next page, you can see the ship’s route (labeled PC in red) as we passed through the oil slick shown in blue.

emulsified oil
Rainbow sheen from oil
Emulsified oil
Emulsified oil
Route of the Pisces
Route of the Pisces

Personal Log

We are finally on our way! This is a picture of the other Teacher at Sea and myself in front of our ship, the Pisces.

Nicolle von der Heyde, from St. Louis, MO, teaches 8th grade science. I am from Birmingham, AL, and teach Gifted students in grades 3-6. I’m so glad to have another teacher to talk to! We are so excited thinking about all the science experiments and lessons that we can bring back to our students. Our minds are just whirling! I was surprised when ENS Schill said we each had our own staterooms.

My stateroom
My stateroom

I later found out that some of the scientists scheduled to be on this cruise had been reassigned to other missions related to the oil spill in the Gulf. In addition, some of the tasks in our original mission, like longlining (fishing) for sharks and rays, had also been cancelled due to the oil. At first, I was somewhat disappointed that we would not be capturing sharks or hauling in large amounts of fish to sample, then I snapped out of it as soon as I reminded myself that I was about to set sail on the trip of a lifetime on board a research vessel with NOAA!

Yesterday was our first day on ship and right off the bat as we left port, we saw about 20 dolphins riding the bow wave. It was so much fun watching them arc in the water and splash around! Some even swam upside down and sideways! The babies, or calves, stuck real close to their moms! As we peered over the side of the ship we could actually see into their blow holes! What a view!

Dolphins
Dolphins
Dolphins
Dolphins

I was also very pleased to see that there are two women who are Junior Officers – Ensign Kelly Schill and Ensign Laura Gibson. Here you can see Ensign Schill as she prepares our navigation. She is also the Medical Officer. There are three female Commanding Officers in the NOAA fleet. Maybe one of our Ensigns will become a CO one day.

Ensign Schill preparing the navigation of the Pisces
Ensign Schill preparing the navigation of the Pisces

Here you see our CO (Commanding Officer), Jeremy Adams, as he sits in his Captain’s Chair scanning the horizon. He’s the one who spotted the dolphins which sent the crew rushing to the bow of the ship. The officers, who wear blue uniforms, have been so gracious and patient as they explain things to us.

Commanding Officer Jerry Adams
Commanding Officer Jerry Adams

Right now I’m sitting in the bow of the ship as I watch a bird “catching a ride” on the top of a weather pole. It’s interesting to see birds such as terns and pelicans so far from shore. The XO (Executive Officer) says we are 90 miles from shore.

Today we had a Fire drill and a Man Overboard drill – just like in school. The scientists “mustered” (or gathered) in the conference room where our Chief Scientist had to take a head count just like teachers do during our drills. We’ll have an Abandon Ship drill next week. I thought you would like to see the orange Fast Rescue Boat that we would use if we had to abandon ship.

Fast Rescue Boat
Fast Rescue Boat

My husband and I went to Gulf Shores right before this trip and saw the oil that had washed ashore. I was expecting “globs” of oil like we’d seen on TV but what we saw was very liquid – oil pooled in puddles. It looked like someone had splattered buckets of motor oil on the beach. There were lots and lots of volunteers cleaning the beach but not too many people on vacations. We saw lots of homes and condos with few cars in the parking lots.

Volunteer Cleaning up the Beach
Volunteer Cleaning up the Beach
Oil on the coast
Oil on the coast

The economic hit that businesses are taking on the Gulf Coast is terrible. Our XO told us that NOAA is hiring boat owners to drive through the densest part of the oil to get data. The smaller boat owners have “closed” boats which means they do not take in sea water for everyday usage like the big NOAA ships. They take their water with them in containers. If the NOAA ships go through heavy oil, the oil could get sucked up and lodged in their water filters and do damage to the equipment. Maybe this way some of the small charter boat owners can recoup some of the money they are losing since no one is chartering boats to go deep sea fishing.

New Term/Vocabulary

Bow – front part of the ship
Stern – back part of the ship
Port – left
Starboard – right
Bow wave – the waves at the front of the ship as it travels through the water
Muster – to gather in one place

“Something to think about”

What qualities would you look for in a Commanding Officer? Do you think a woman will ever become an Admiral in the NOAA fleet?

“Did You Know?”

You can track the Pisces on the Internet at the following site: http://shiptracker.noaa.gov

Just select the ship you want to follow and it will give you our position. Click the last map option to see a map of the oil slick and our path through it.

Nicolle von der Heyde, June 14, 2010

NOAA Teacher at Sea
Nicolle Vonderheyde
Onboard NOAA Ship Pisces
June 14 – July 2, 2010

Nicolle von der Heyde
NOAA Ship Pisces
Mission: SEAMAP Reef Fish Survey
Geographical Area of Cruise: Gulf of Mexico
Date: Monday, June 14 2010

Weather Data from the Bridge

Time: 2000 hours (8 pm)
Position: latitude = 29.46.02 N, longitude = 088.08.4 W
Present Weather: some cumulus clouds
Visibility: 9 nautical miles
Wind Direction: Variable Wind Speed: Light
Wave Height: 0 feet
Sea Water Temp: 32.6 degrees Celsius
Air Temperature: Dry Bulb = 31 Celsius, Wet Bulb = 30.8 Celsius

Science and Technology Log

This portion of the log will be written by me and my fellow Teacher at Sea, Melinda Storey from Birmingham, AL. Since we will be cruising for a couple of days to reach our first destination off the coast of southern Texas, we thought we would briefly describe our mission on board Pisces and our first observations of oil in the Gulf of Mexico. We are participating in the first leg of the SEAMAP (Southeast Area Monitoring and Assessment Program) Reef Fish Survey along the continental shelf from Brownsville, TX north to the Flower Garden Banks National Marine Sanctuary. The Chief Scientist on this mission is Paul Felts. Our task will involve sending video cameras down into the water column and onto the ocean floor to record the abundance and relative size of reef fish associated with various geographical features. The video cameras will be submerged for about 45 minutes at a time, starting one hour after sunrise and continuing until one hour before sunset. If conditions are good, Mr. Felts believes we can submerge the cameras about 7-8 times a day. We will view some of the recorded data on the ship to make sure the equipment is working properly, however the analysis will take place back in the laboratory in Pascagoula, MS.

The Pisces left the port of Pascagoula at around 1130 hours (military time, aka 11:30 am) but did not leave the bay until about 1730 hours (5:30 pm).

The Pisces in port
The Pisces in port
Melinda Storey and I in front of the Pisces
Melinda Storey and I in front of the Pisces

During this time, the ship was cruising back and forth in the bay as engineers conducted tests of the acoustics on the ship. The Pisces, just commissioned in November of 2009, is the quietest vessel in the NOAA fleet and has some of the latest technology on board. Making a ship quiet may not seem like a big deal, but when you are trying to research marine life in an undisturbed natural environment, silent observation is everything. When the engineers finished their testing, a small boat arrived to take 4 of the engineers back to shore. Three other engineers and one intern remained on board to join us on our voyage.

Testing the small boat
Testing the small boat

The signs of oil extraction in the Gulf were apparent the moment we boarded the Pisces in Pascagoula. Across the channel from our ship were two old oil rigs no longer in service, one damaged from Hurricane Katrina and destined to be returned to the bottom of the sea to be made into an artificial reef. This is often done with old military battleships as well as they are sunk to the ocean floor and fish begin to use the vessels as a habitat and to hide from predators. Oil booms were placed around the Pisces and other ships in the channel for protection in case oil made its way into the port.

Out of service oil rigs
Out of service oil rigs
Oil booms
Oil booms

As we headed out to sea, we were surprised at the great number of ships and oil rigs that dotted the horizon. We saw lots of huge tankers that were just anchored, waiting in line to off load their oil into the Chevron refinery. One of the crew told us there are around 43,000 oil wells in the Gulf. Some wells just have pipes attached and pump oil directly through pipes into the refinery. Some wells have rigs that drill deep into the ocean floor. The Deepwater Horizon that exploded in the Gulf was this type of rig. We also saw one rig that had a flame coming out at the very top of the rig. This was the burning off of natural gas. Our Commanding Officer told us that they “burn off” natural gas for two reasons – safety and economics. All rigs let off a certain amount of excess gas and it’s more economical to burn it off rather than pipe it all the way back to the mainland. Also, burning off the excess gas keeps it from building up pressure, which is very dangerous.

It wasn’t until a few hours after leaving the bay that the officers on the bridge notified us that we were traveling through the oil slick. As we looked over the deck of the bridge, we saw a rainbow of sheen on the surface and even some reddish “emulsified” oil. On the map on the next page, you can see the ship’s route (labeled PC in red) as we passed through the oil slick shown in blue.


Personal Log

Sunday, June 13: After months of anticipation and possible cancellation of the Reef Fish Survey altogether, I arrived in Pascagoula, Mississippi and got the first glimpse of my new home for the next 19 days, the NOAA Ship Pisces. I flew into Mobile, AL and was picked up at the airport by my fellow Teacher at Sea, Melinda Storey. Ensign (ENS) Kelly Schill met us at the ship and showed us to our staterooms to get settled in. Knowing that space on the ship is limited; I was expecting to share a small, cramped room with Melinda and had already resigned myself to taking the top bunk.

I was surprised when ENS Schill said we each had our own staterooms. I later found out that some of the scientists scheduled to be on this cruise had been reassigned to other missions related to the oil spill in the Gulf. In addition, some of the tasks in our original mission, like longlining for sharks and rays, had also been cancelled due to the oil. At first, I was somewhat disappointed that we would not be capturing sharks or hauling in large amounts of fish to sample, then I snapped out of it as soon as I reminded myself that I was about to set sail on the trip of a lifetime on board a research vessel with NOAA! We met and had dinner with the Operations Officer (OPS) of the ship, ENS Kurt Karpov, before turning in for the night. Much to my surprise, the ship is equipped with DirectTV satellite, so I was able to watch TV before going to bed! The ship was set to sail at 1000 hours (military time, aka 10:00 am) the next day.

Monday, June 14: Melinda and I woke up early as breakfast began at 0700 hours. We introduced ourselves to Chief Steward Jessie Stiggins and Second Cook Michael Sapien who would be responsible for ensuring we received three hearty and nutritious meals a day on the ship – so far they have not disappointed. After breakfast, the scientists had not yet arrived so I walked around taking pictures, getting familiar with the ship, and introducing myself to the deckhands, engineers, and crew members with whom we would be sailing for the next few weeks. I met the Commanding Officer (CO) of the ship, LCDR (Lieutenant Commander, comparable to the same rank in the Navy or Coast Guard) Jeremy Adams, the Executive Officer (XO), LCDR Jessie Stark, and the ship’s Navigator, ENS Laura Gibson. From the moment we arrived, everyone has been very welcoming and friendly, making me feel very comfortable in my new surroundings. The morning was busy as crew members hauled in equipment and supplies and while I offered to help, there was not much for me to do and I simply tried to stay out of everyone’s way. The officers did allow me to conduct a test of the ship’s rudders to make sure that when a dial was turned to a particular setting, like 30 degrees to the right, that the rudders were actually moving 30 degrees to the right. The picture on the right below shows me conducting this test while the Operations Officer communicates with the engineers who are observing the rudders.

I was really grateful to have another teacher with me so we could discuss and ask questions together about what we were observing around us. After a busy morning, we finally set sail at 1130 hours. Shortly after we left port, we heard the exciting call of “Dolphins!” Looking over the bow (front) of the ship we saw one dolphin after another racing towards us and turning around under water so they could race along with the wake from the bow. At one point I believe there were close to 20 dolphins including a baby dolphin or two!

Later in the afternoon, we had a “Welcome Aboard” meeting run by ENS Gibson and ENS Schill to inform us of the facilities on the ship and the emergency procedures in case of fire, man overboard, or a need to abandon ship. We were also told there would be drills conducted for each of these emergencies – just like school fire and tornado drills! We met the Chief Scientist Paul Felts and three other scientists we would be working with. For now, there was not much for the science party to do because it would take about two days to reach our first destination about 30 miles off the coast of Southern Texas, near South Padre Island and the US/Mexico border.

In the early evening I decided to go up to the bridge to remind the officers on watch to inform us if they observed any oil. Shortly after, the CO entered the bridge and announced that there was oil sheen on the surface of the water. Melinda and I looked over the deck and began taking pictures. The sheen seemed to go on forever and my thoughts turned to what was happening beneath the surface that we could not see. As we watched the sun set on our first day out at sea, the oil sheen created an ironically beautiful and tranquil setting in the midst of an environmental tragedy. Fortunately, it wasn’t long before the ship was sailing in cleaner waters.

Much to my surprise, after the ET (Electronics Technician) Bob Carter did a check of my laptop, I was able to log onto the internet and send emails while on board. After dinner, I spent the evening catching up on emails and reading before retiring as the soft rolling of the ship rocked me to sleep.

Animals Seen Today

Atlantic Spotted Dolphins (Stenella frontalis)

Seagull

Stephanie Wally, September 6, 2005

NOAA Teacher at Sea
Stephanie Wally
Onboard NOAA Ship Rainier
August 29 – September 10, 2005

Mission: Hydrographic Survey
Geographical Area: Eastern Prince William Sound, Alaska
Date: September 6, 2005

Ensign Stevenson collects multi-beam bathymetric data from the launch
Ensign Stevenson collects multi-beam bathymetric data from the launch

Weather Data from Bridge 

Time: 0800
Cloud Cover: Low Clouds, Stratocumulus
Visibility: 10 nm (nautical miles)
Wind Direction: 60°
Sea Wave Height: 0’
Swell Wave Height: 0’
Sea Water Temperature: 11.7°C
Sea Level Pressure: 1013.5 mb (millibars)
Temp: 11.1°C

Science and Technology Log 

This morning, I barely had time to scarf down a delicious breakfast sandwich before heading out on one of the skiffs with Ensigns Gonsalves, Hauser, and Pounds. All of the officers have science/math/engineering degrees that provide them with the necessary background to complete NOAA’s hydrographic objectives.  It was a crisp morning, with fresh snow on the Chugach mountaintops.  Speeding out on the uncovered skiff can get very cold if you’re not dressed warmly.  Goggles, hoods, gloves, and a thermos of coffee helped keep us warm.  The two-hour morning mission consisted of monitoring horizontal and vertical control, and monitoring the tide station. Since Ensign Hauser is a tides officer aboard RAINIER, she is in charge of recording observations and making sure gauges are operating properly.  With the data and observations recorded, water depth will be calculated. The horizontal and vertical control teams are responsible for establishing accurate latitude and longitude coordinates for soundings taken by RAINIER and the launches.

In the afternoon we got underway back toward Boulder Bay.  During the transit, another visitor on the ship during this leg, Kyle Ward, and I reflected on the Exxon Valdez oil spill that occurred on March 24, 1989.  Mr. Ward is a physical scientist who annually works aboard the RAINIER with hydro projects.  We agreed that, considering the fact that the oil spill was the largest and most destructive to have happened in the U.S., Bligh Reef and the sound show barely a trace of this spill today.  The spill, estimated to have killed 250,000 seabirds, 2,800 sea otters, 300 harbor seals, 250 bald eagles, 22 killer whales, and billions of fish eggs, drastically affected many species and the entire sound ecosystem.  Fortunately, this habitat has been recovering during the past fifteen years.  Today, oil is still present on some shores and remains trapped beneath rocks.

Answer to yesterday’s question of the day: The Alaskan Earthquake of 1964