Monthly Archives: November 2009

Chris Imhof, November 19, 2009

Posted on by Teacher at Sea

NOAA Teacher at Sea
Chris Imhof
Onboard NOAA Ship Pisces
November 7 – 19, 2009

Mission: Coral Survey
Geographic Region: Southeast U.S.
Date: November 19, 2009

Science Log

After 3 days and many hours in front of computer screens and monitors I almost forgot I was on a boat. Tonight is my last night on the Pisces, and although at times it has been rough, I have started to get used to the rocking of the ship and know every crew member by name. I ran about the ship when I have had a second, to take in things knowing I will have chance tomorrow . I will miss looking across the open sea and having opportunities to catch a glimpse of a shark fin near the side of the ship and a huge sea turtle making its way across the waves. I will miss talking to the crew and the scientists, and working with Jeannine Foucault the other Teacher at Sea. I’ll probably write another log tomorrow to sum up the experience, but its hard

to rally up for a science log when you are tired and many of have to pack to disembark at Jacksonville tomorrow morning. As for the Pisces and her crew, they will make their way back to Pascagoula for the Holidays.

Jeannine Foucault, November 19, 2009

Posted on by Teacher at Sea

NOAA Teacher at Sea
Jeannine Foucault
Onboard NOAA Ship Pisces
November 7 – 19, 2009

Mission: Ecosystem Survey
Geographic Region: Southeast U.S.
Date: November 19, 2009

Seafloor ROV images

Seafloor ROV images

Science Log

Our last day of ROV dives and it was definitely worthwhile. PISCES held off the coast of South Carolina at the Edisto MPA (Marine Protection Area). We were able to get in four dives with the ROV. The scientists paid close attention to the marine habitat within the ecosystems of all four dives. The interesting conclusion was that all four dives had very different habitats. What is even more interesting is that these differing habitats affect the number of animals that live there. Some of the areas we saw were smooth sandy bottom and interspersed on the smooth bottom are rugged rocky outcrops.

The rocky reefs range in height from some being really short to some being very tall. Some of the rocky reefs can even be in a small area the size of a dinner plate and others are hundreds of square miles.

Rocky reefs from the ROV

Rocky reefs from the ROV

The important fact of the matter is that the rugged hard bottom is favored by many species of animals including corals, sponges, and other invertebrates. Scientists find that sunken ships or other debris that ends up at the bottom of the ocean becomes perfect habitat for animals. These areas protect fish species during spawning and from predators. Today’s discovery is that the most fish species we have seen was found not in the smooth sandy bottom but in fact in the rugged rocky outcrops and rocky reef ranges.

Things I have seen today:

hammerhead shark
sea turtle
sea cucumber
spotted goat fish
lobster
pencil urchin
banded butterfly fish
sand tilefish
sea biscuit

Question of the Day

What is a TED?

Jeannine Foucault, November 18, 2009

Posted on by Teacher at Sea

NOAA Teacher at Sea
Jeannine Foucault
Onboard NOAA Ship Pisces
November 7 – 19, 2009

Mission: Ecosystem Survey
Geographic Region: Southeast U.S.
Date: November 18, 2009

Instrumentation

Instrumentation

Science Log

Lionfish and more lionfish…..the South Atlantic coastline is getting overtaken by these funny little creatures. Scientists find that they are competing with the Grouper and Tilefish throughout the coastline and unfortunately winning. Speculation has it that at one time dive charters brought this species of fish to the coast for tourist purposes while other speculation tells that people who own aquariums once owned the lionfish kept them so long that they grew so big they had to get rid of them. What better way to get rid of them was to dump them into the South Atlantic Ocean? Nevertheless, they are here and destroying the populations of Grouper and Tilefish.

Seafloor images

Seafloor images

Since 2004 NOAA scientists have been working on this MPA (Marine Protected Area) project to gather data to identify the significant changes in species populations of the lionfish, grouper, and tilefish. Each year they come out to the same plotted MPA’s to check the habitat populations. Unfortunately, the lionfish numbers are increasing and the grouper and tilefish populations are decreasing. So what happens now? Do the grouper and tilefish relocate? Do they become endangered? Do we capture the lionfish and relocate them? There is no real answer to the problem at hand, but this is one example of the many ways NOAA scientists work on protecting marine life.

Today I was able to work hands on with launch and recovery of the ROV (Remote Operated Vehicle). Yep, hardhat and all! My job was to make sure the tether line didn’t get tangled and was being fed in and out of the ocean properly. Launch and recovery of the ROV can be a very dangerous operation if everyone is not communicating and alert.

I was also able to drive the ROV from inside the ship across the ocean floor about 223ft in depth. Driving was not as easy as it looked. Maneuvering the ROV in the direction to which the scientists need as well as not to tangle the tether. Once the end of the tether is near I had to radio up to the bridge to move the ship in whichever direction the scientists needed to explore next.

Finally, as the day was winding down acoustics lab was testing their equipment from the ship. The mammal biologists were able to identify sounds from several playing dolphins! I was able to listen to their playful audio for a while before they dissipated into the ocean.

What did I eat for dinner? Fresh sushi, of course!

Chris Imhof, November 18, 2009

Posted on by Teacher at Sea

NOAA Teacher at Sea
Chris Imhof
Onboard NOAA Ship Pisces
November 7 – 19, 2009

Mission: Coral Survey
Geographic Region: Southeast U.S.
Date: November 18, 2009

Science Log

NOAA’s mission is to “protect, restore and manage the use of coastal and ocean resources.” The way NOAA does this is through science – a voyage like this may seem like moving from point to point and placing a really cool piece of technology in the water to see what’s on the bottom – but these are all tools that are being used to be able to carry out the tenets of protect, restore and manage.

We have visited half our sites now and have surveyed different environments in and out of Marine Protected Areas. Different environments, yet with commonalities – all the sites are near exposed “hard-bottom” or exposed limestone on the shelf bottom. There may be miles of sand waves and algae – but theses exposed, complex and bio-encrusted features are “oasis’s” for all sorts of ocean life – especially fish. As the ROV maneuvers across the sandy waves, it is usually the glint of a school of fish or reflection of a fish eye that provides a beacon to a feature. If these features are “oasis” habitats then they should be protected. Granted, these limestone blocks can do more damage to fishing line and gear, evident in the amount of line found in the high relief areas – but in the case of some of the North Florida MPA, we encountered the fragile deep water Occulina Coral which is vulnerable especially when nets are being dragged across these areas.

Another commonality noticed is the growing presence of the beautiful Lion Fish (Pterois volitans) – this native of Pacific waters was released intentionally or unintentionally in the early 1990’s around Florida and have since spread to areas above North Carolina and south to the Caribbean, especially along reefs and rocky outcrops. They join an infamous ranks of other invasive species including the European Green Crab, Asian Eel and Zebra Mussel. The Lion-Fish, besides having an array of venomous spines. has a keen strategy of “corralling” prey with their fins and eating them in one gulp. This will impact the small fish and crustaceans in these habitats as well as the added competition with indigenous or native predators such as snappers and grouper fish – which are currently commercially fished. This is where “manage” comes in – here is a “new” invasive species in that is growing in population and spreading geographically, impacting the habitat by out-competing, in some cases, the established predators – how can it be managed.

Especially when the Lion-fish has few natural enemies. The Lion Fish is a tricky one – as an invasive species, missions like this one help to understand the long-term impact the Lion-Fish is having on these habitats. Using technology like multi-beam mapping and ROV technology can provide data for scientists and in turn give councils, commissions and government the knowledge to manage these areas through smart-solution-based policy.

References:

coastalscience.noaa.gov/documents/factsheet_lionfish.pdf

http://www.magazine.noaa.gov/stories/mag135.htm

Jeannine Foucault, November 17, 2009

Posted on by Teacher at Sea

NOAA Teacher at Sea
Jeannine Foucault
Onboard NOAA Ship Pisces
November 7 – 19, 2009

Mission: Ecosystem Survey
Geographic Region: Southeast U.S.
Date: November 17, 2009

Taking a first look at the data

Taking a first look at the data

Science Log

What an exciting day! The first time we launched the ROV (Remote Operated Vehicle) into the ocean at our first MPA (Marine Protected Area) in North Florida. The amount of manpower and communication that goes into something like this is just extraordinary. The deckhands must be available and working with the crane to gradually place the ROV into the water, the crew must be on the bridge communicating with the scientists and the deckhands to maneuver the ship where needed, and finally the scientists have to be working gathering data and making sure the ROV is placed where the MPA site is located. Even before the ROV is launched something called a CTD (Conductivity Temperature and Depth) is lowered into the ocean to gather water temperature, salinity, and depth. This CTD device is lowered twice in one day, once at the beginning of the day and once at the end of the day to give the scientists some raw data of the waters.

The ROV will usually “dive” for about an hour while the scientists record live footage. One scientist is actually driving the ROV from inside the ship. The ROV has four propellers that run from an electric motor supplied by the electricity source provided by the ship. It almost looks like he’s playing a video game when he is driving. It’s got two joysticks and a monitor that he follows.

Fish on the screen from the ROV

Fish on the screen from the ROV

Another job is where a scientist is keeping track of the 37″ TV monitor. He or she records the species of fish seen along with longitude, latitude, depth, and floor surface. Yet another scientist is working taking still and video photographs from the ROV while providing audio narration to aid in video analysis when reviewing back in the lab.

All the above is going on and still don’t forget the communication between the bridge and the scientists. If the scientists want to move the ship just about 400m due East then he will radio up to the captain on the bridge and the ship will move 400 m due East being very careful not to run over the ROV or cause any other safety concerns. Safety is NOAA’s biggest concern!

Take a look at the animals I have seen today:

Amberjack fish
Red snapper fish
Yellow tail snapper fish
Lion fish
Toad fish
Hog fish
Shark
Ramora fish
Reef butterfly fish
Soldier fish
Black coral
Goliath grouper!!!
Scamp fish
Moray eel
Sea turtle
Barracuda fish

Look these up and send me a photo….. I’ll let you know if that’s what I see!

Chris Imhof, November 17, 2009

Posted on by Teacher at Sea

NOAA Teacher at Sea
Chris Imhof
Onboard NOAA Ship Pisces
November 7 – 19, 2009

Mission: Coral Survey
Geographic Region: Southeast U.S.
Date: November 17, 2009

Science Log

We sailed last night to our first “station” – The North Florida Marine Protected Area – and by 7:00 am this morning the ROV pilots Lance Brown and Glenn Taylor were going through the “pre-flight” checklist on the ROV; Lance working the controls in the lab, Glenn outside taking care of the deployment and extraction of the vehicle on the starboard weather deck. Soon they were meeting with the Lead NOAA scientist Andy David to talk through the operations of the deployment and extraction and more specifically the methodology of what they were trying to accomplish at this site.

The North Florida MPA area has been protected since 2004 – meaning no sailing or fishing occurs in this area. Some of the area has been mapped by multi-beam sonar – so what scientist then do with ROV technology is “Ground-Truthing” in which after examining the multi-beam maps – choose features to explore and check visually how they compare with their maps. Since the ROV sends real time video feed to the lab, the scientist watch and note the features, the animals that are present or not present in the habitat. They also perform a down shot every 2 minutes, or stop the ROV – point the camera down and take a picture – later in the lab they quantify the habitat by gridding the photograph and counting the number of species. Todays North Florida site tested sites inside the Marine Protected Area as well as sites/features outside the MPA for comparison as well as to help make future decisions of extending possible areas into the protective zone or even species.

After the scientists met, the Pisces crew and captain Jeremy Adams met on the weather deck to talk through the operation – sync their communications and what if scenarios. In all, there were 3 ROV dives which went extremely smooth, mainly due to the organization and communication of everyone involved.

The highlights of the dive were the spectacular features of the exposed limestone near the drop offs and the amazing habitats – for all my preparation the diversity of fish was overwhelming – I could identify a few featured fish like the Lionfish, barracudas and Moray Eels – I was unprepared to see a real sea turtle hanging out by some rocks or a Goliath Grouper which came out of nowhere. I learned many new fish which I hope to be able to call out from the monitor tomorrow like the Reef Butterfly, Squirrel Fish, Amberjack, Scamp, Soldier fish, Purple and Yellow Tail Reef Fish. I was helpful in identifying some of the Occulina deep coral species, the sponges (which you couldn’t miss) as well as pick out old fish line, a bottle and and an old anchor jammed into the rocks near the edge.

I’ll let the pictures and video slices tell most of the story. We are cruising all night again to our most northern site Edisto – off South Carolina and then work back from there.

Jeannine Foucault, November 16, 2009

Posted on by Teacher at Sea

NOAA Teacher at Sea
Jeannine Foucault
Onboard NOAA Ship Pisces
November 7 – 19, 2009

Mission: Ecosystem Survey
Geographic Region: Southeast U.S.
Date: November 16, 2009

Survival suit for safety

Survival suit for safety

Science Log

Today we were ported in Jacksonville, FL. It was load up and set up day for the additional scientists and the ROV (Remote Operated Vehicle).

The ROV is similar to a traveling robot that will be lowered down onto the ocean floor and will be remotely operated from the ship while recording ocean life at each MPA (Marine Protected Area) that we visit. Since PISCES is a brand new ship she wasn’t equipped for all the hardware and software needed for the ROV; therefore, all the engineers, deckhands, scientists, and crew were involved in a speedy setup. The scientists also loaded a fish trap just in case we need extra data in addition to the ROV.

We set off to our first MPA in North Florida to do our first ROV trial testing in the morning to get some live data. I am so anxious to see how the ROV works and what sort of data we will receive. I know I will sleep well tonight because I was working right along side everyone. Remember all those measurements I have you take and then convert them from English to metric units? That’s what I had to do today. We had to measure how far the equipment was in respect to the size of the ship, etc. You want to know how you will use what you learn in ‘real life’? Well, here it is!

I did see a dolphin today, but too quick for a pic! SRRY 🙂

Also, I was able to watch the launch of the space shuttle Atlantis.