Nancy Foster Mission 2015: The Glider

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The autonomous ocean glider sits on the deck of the Nancy Foster, prior to its launch for a 20-day mission around St. Croix. Credit: NOAA.

March 28 was day one on board the NOAA ship Nancy Foster, and we were already diving right into the science. After leaving the Crown Bay Marina in St. Thomas, we took a four hour transit to the south of St. Croix—the launch point for our glider.

With the support of the ship’s crew and some heavy machinery, the glider—looking very much like a yellow torpedo—was carefully lowered into the ocean swells off the aft deck (ship lingo for back end). After a few harrowing moments when a few waves nearly crashed the glider against the ship’s side, the glider released and slowly floated away before disappearing beneath the surface, marking the beginning of a 20-day solo mission around the island of St. Croix. Now completely independent from the ship’s activities, the glider will continue collecting environmental data from a variety of sensors, including water temperature, depth, and salinity; and acoustic recordings of fish and other marine life it may come across.

glider2glider3NOAA scientists launch the glider off the aft deck of the Nancy Foster. Credit: NOAA.

The glider sends NOAA scientist Chris Taylor updates via email every time it surfaces throughout its journey, but the acoustic data will only be accessible once the glider is retrieved. In the meantime, we return our attentions to operating multibeam sonar and deploying an ROV throughout the rest of the research expedition, and hope the glider will successfully complete its mission.

GliderTrack_03292015

The glider’s path as of the afternoon of March 29. Each green pin represents a time when the glider surfaced. The yellow glider symbol is just a representation, and not to scale. Credit: NOAA.

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2015 Nancy Foster Mission: 12 years of habitat mapping in the Caribbean

nancyfosterje

The NOAA ship Nancy Foster embarks on its 12th seafloor mapping mission in the Caribbean on March 28 from Charlotte Amalie, Saint Thomas, USVI. Credit: NOAA

March 28th marks the beginning of the latest Caribbean Seafloor Mapping Mission on board the NOAA ship Nancy Foster. With nearly 3,430 square kilometers (1,324 square miles) mapped since 2004, scientists from the National Centers for Coastal Ocean Science and their partners continue exploring the waters surrounding Puerto Rico and the U.S. Virgin Islands, identifying and mapping critical coral reef and fisheries habitat with SONAR and video observations. Starting in 2008, fish acoustics surveys were added to the repertoire to map the actual location of fish throughout the water column.

map plan

Planned project areas for the 2015 mission around St. Thomas and St. Croix (red diagonals, click to enlarge). Credit: NOAA

This year, fourteen researchers and support staff will combine methods of multibeam and fish sonar with video captured from an ROV (remotely operated vehicle) and environmental data collected from an autonomous glider for the duration of the eleven-day cruise around the islands of St. Croix and St. Thomas. Integrating these mapping and observation activities gives the scientists a more complete picture of these ecosystems, and they can actually visualize how fish are distributed around bottom features across the entire region.

The USVI are home to a historic and extensive fishery, but overfishing throughout the 1970s and 1980s left numerous stocks of once abundant fish depleted—particularly, the Nassau Grouper (Epinephelus straitus), the Red Hind Grouper (Epinephelus guttatus), and Mutton Snapper (Lutjanus analis). All three fish species are known for forming spawning aggregations that are predictably exploited by fishers, leading to decreases in reproductive output and total collapse of the fishery. To prevent the collapse of fisheries, seasonal closures and catch regulations were quickly established within various Marine Conservation Districts (MCDs) in the 1990s and aid fisheries recovery. Fishing with pots, traps, bottom longlines, gill nets, or trammel nets is prohibited year-round in these MCDs. Continued monitoring and research will allow for greater optimization of MCD boundaries and seasonal closures, thereby aiding both the fish and fishers.

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Red hind grouper. Credit: NOAA

muttonhead aggregations

A muttonhead snapper aggregation. Credit: NOAA

The data gathered from these annual missions are used to generate maps for use by local policy makers to determine the best approach for managing and protecting these important habitats and the marine species that live here, as well as supporting future research initiatives.

Not only do these missions support future environmental management decisions, but the imagery and video feeds can capture some pretty fascinating undersea life–from grouper and snapper and brightly colored triggerfish to playful dolphins, roaming sharks, and curious sea turtles, not to mention the coral formations and diversity of marine invertebrates.

eagle ray

Spotted eagle ray. Credit: NOAA

horse eye jacks

A school of horse eye jacks. Credit: NOAA

scrawled file fish

Scrawled file fish. Credit: NOAA

tubes sponge

Tube sponges. Credit: NOAA

scorpion fish

Half-hidden scorpion fish. Credit: NOAA

Stay tuned for future updates from the field as we set sail from March 28th through April 7th!

For more information visit the Mission Web Portal!

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There is No HAB-cyst Cruise without the CREW: Reflections

Team

NOAA’s HAB-cyst sampling cruise science team on the Okeanos from left to right: Dennis Apeti (NOAA), Kali Horn (WHOI), Blaine West (NOAA), Lindsay Peter (WHOI), Steve Kibler (NOAA), Jennifer Maucher (NOAA), Terry McTigue (NOAA), Leslie Irwin (NOAA), John Wickham (NOAA), Chris Alex (NOAA), Andrew Meredith (NOAA), and Bruce Keafer (WHOI). Credit, NOAA.

After nine days at sea in the Gulf of Maine, our team of NOAA and WHOI scientists successfully completed our Alexandrium cyst collection cruise. We took sediment core samples from over 80 sites and processed them for future counts of cyst abundance, to support next season’s harmful algal bloom (HAB) forecast. The twelve scientists gave plenty of ‘mud, sweat, and tears’ to make sure science was happening around the clock.

IMG_7224 Kelson and John guide corer back on deck - Oct 17 2014 - Chris' photo

The NOAA Okeanos Explorer crew operate the crane to guide the corer back on deck. Credit, NOAA.

But we can’t take all the credit. Not even close.

The crew of NOAA’s Okeanos Explorer was exceptional–welcoming, helpful, knowledgeable, friendly, and constantly going beyond the call of duty to support our research.

IMG_2012

Junior Officer Sean Luis navigates the Okeanos’ course from the bridge. Credit, NOAA.

IMG_7112 Bruce, C.O. Ramos, Emily consult on route - Oct 14 2014 -ris' photo

WHOI’s Bruce Keafer (left) discusses navigation strategy with Okeanos Captain Ricardo Ramos and Operations Officer Emily Rose. Credit, NOAA.

The crew is constantly making sure the ship and its equipment are functioning safely and effectively. They were also working around the clock, operating the crane that lifts our Craib Corer over the side and lowers it to the sea floor. The crew ensures other instruments and monitoring equipment reported data accurately, like wind speed and sea depth, that we needed to include with observations. The crew navigates and guides the ship to each of our requested sites.

IMG_7187 Tyler waits to operate crane during a 30 min (15 to bridge) repositioning manuveur- Oct 16 2014  - Chris' photo

Okeanos’ Chief Boatswain Tyler Scheff oversees operations on deck.

Joao Alves waits cheerfully on deck for the Craib corer to surface. Credit, NOAA.

Joao Alves waits cheerfully on deck for the Craib corer to surface. Credit, NOAA.

The crew makes sure we are well fed and entertained. We enjoyed three home-cooked meals, and were even treated to a night of ice cream and a night-time viewing of Jurassic Park if you weren’t in the middle of a shift. We toured the ship’s (very loud) engine room.

IMG_7305 fancy garnishes Rainier made - Oct 19 2014 - Chris' photo

The cooks on the Okeanos knew how to get creative at meal time. Credit, NOAA.

As a special treat, when we returned to dock in Rhode Island, we got to visit the NOAA hangar with the underwater remotely operated vehicles (ROVs) that are often deployed to support exploratory and biogeography expeditions of deep sea habitats.

For nine days we lived and worked beside the crew like a well-oiled machine, but as we leave them behind, they will move on to their next supporting research adventure. We can hardly begin to thank them enough for everything.

There are so many facets to the research, the equipment, and the people necessary for a successful research cruise, and hopefully that reality was captured in the earlier three posts featuring what it takes to prepare, what science is conducted, and what the science supports from this HAB-cyst sampling cruise.

A pod of pilot whales investigated the Okeanos while we were stopped at a sampling site. Credit, NOAA.

A pod of pilot whales investigated the Okeanos while we were stopped at a sampling site. Credit, NOAA.

Now the scientists will continue sample analysis back in their labs on lab and develop the 2015 HAB forecast for the Gulf of Maine, and start planning next year’s sampling cruise!

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‘What’s Cyst’ All About? Days 5-6 of HAB-Cyst Sampling

So there’s been a lot of talk about collecting sediment from the sea floor for processing and future analyses, but we haven’t explained the full importance of what NOAA’s scientists are actually after–the cysts!

cyst to bloom

The lifecycle of the HAB species Alexandrium fundyense, from cyst to blooming vegetative cells. Credit WHOI.

We’ve mentioned that they come from the harmful algal bloom (HAB) species Alexandrium fundyense, and that they are important for developing the next year’s HAB forecast, but not how we get there.

Alexandrium has two life stages. During a red tide HAB event, Alexandrium is found near the water’s surface in its vegetative state, which produces saxitoxin. This is the culprit with the potential to affect economically important shellfish fisheries and cause paralytic shellfish poisoning (PSP) when people consume the contaminated shellfish. 

IMG_7120 Dennis and Andrew process top 1 cm core slice into syringes - Oct 15 2014 - Chris' photo

NOAA’s Dennis Apeti (left) and Andrew Meredith (right) take samples from sediment core slices. Credit NOAA.

IMG_7121 Chris and Andrew processes 1 - 3 cm core slice into syringes - Oct 15 2014 - Chris' photo

NOAA’s Chris Alex (foreground) and Andrew Meredith wash sediment samples. Credit NOAA.

IMG_7173 Jen sieves cysts into 20 ml sieve - Oct 16 2014 - Chris' photo

NOAA’s Jennifer Maucher and Blaine West filter the samples to isolate Alexandrium cysts. Credit NOAA.

In the Gulf of Maine, HAB events begin in the spring and continue throughout the summer. As the bloom dies off, Alexandrium leaves behind seed-like cysts that fall through the water column and remain dormant on the sea floor until they germinate into the following spring bloom. By conducting NOAA’s cyst-sampling cruise in October, we’ve ensured that all of the cysts from the previous spring and summer blooms have settled, and will primarily be concentrated in the first three centimeters of the sediment surface.

Due to environmental factors like winds, ocean currents, and storms, the cysts won’t settle directly below the bloom that formed them, which explains why NOAA samples the entire Gulf of Maine and not just where we detected the blooms.

PA150004 Jen and Steve at the microscope doing live count - Oct 15 2014 - Terry's photo

NOAA’s Steve Kibler searches for Alexandrium cysts under the microscope from one of this cruise’s site samples. Credit NOAA.

ST54 cyst scope pic

An Alexandrium cyst (center) found in a sample from this years’ cruise during microscope counts on board the Okeanos. Credit NOAA.

At the completion of the cruise, the processed sediment samples from each site are prepared for viewing on a slide under a microscope, to count observed cysts. Once the cyst counts are completed for every station, the numbers are incorporated into NOAA’s HAB forecasting model. This model relies on nutrient, salinity, temperature, and the extent of the most recent HAB event along with other environmental factors to predict the concentration, severity, and movements of the future HAB season. NOAA will also deploy a suite of environmental sensors during the actual HAB events to determine the accuracy of the forecast and identify where improvements can be made in the model.

GoM forecast

A map of Alexandrium cyst counts based on the 2011 sampling cruise. Credit WHOI.

These forecasts provide critical insight into the potential threat of saxitoxin in the region, and informs decisions for shellfish fishery closures to prevent PSP. In the past year, NOAA’s HAB forecast and monitoring in the Gulf of Maine has allowed the reopening of some fisheries, including the lucrative clambeds of Georges Bank, which were closed for several decades before.

The forecast for the Gulf of Maine is in development, and is part of NOAA’s role in supporting ecological forecasting services       throughout the nation. NOAA’s HAB forecasts are found in either the developmental or operational stages for Florida, Texas, the Gulf of Mexico, the Chespeake Bay, the Delaware Bay, the Great Lakes, and the Pacific Northwest.

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Playing in the Mud – Days 3-4 of HAB-Cyst Sampling

corer launch above

The Okeanos’ crew and NOAA scientists prepare to lauch the Craib corer for sediment sampling. Credit NOAA.

With our training complete and three days of sampling under our belts, the science team has settled into a routine, tackling an average of two sites in each four-hour shift, depending on the length of transit between them. This puts us on track to complete the 80+ site goal by the end of the trip on October 22.

That may sound like a lot of sites, but what it really means is a lot of MUD.

At each site, we load a core tube into the sediment coring rig (called a Craib corer) on the deck of the Okeanos, which the crew hooks onto a crane and guides it over the ocean surface before lowering it to the sea floor (anywhere from 40-300m). At the bottom, the tube is injected into the sediment which is captured and secured, then lifted to the surface.

Once the crew has secured the rig and given the science team clearance to approach, the are plenty of opportunities to get our hands dirty.

First we have to get the tube, now filled with sediment, out of the corer. We have to be quick to move the ball stopper out of the bottom and slide in a rubber puck-like plug to keep the core from falling to the deck. Some of the mud will generally ooze out the sides regardless. Once plugged, the tube is released from the rig and carried into the wet lab just inside from the deck.

The core is removed and ready for processing. Credit NOAA.

The core is removed and ready for processing. Credit NOAA.

core stand

A successful sediment core is secured on a stand, ready for slicing off the first centimeter, followed by a slice of the following two centimeters. Credit NOAA.

 

 

 

 

 

 

 

 

 

The core is fastened in a stand and then pushed upwards to the top of the tube, so that the first centimeter, and then next two centimeters, can be sliced off into beakers. This can also be a tricky and messy process, and you have to move fast. Then members of the team are stirring up the slices so they are evenly mixed, and we allocate portions of each for different samples that will be sonified, washed, filtered down, and processed for cyst counts and qPCR analysis.

core slice

A slice of the sediment core is transfered to a beaker for further processing. Credit NOAA.

kibler

NOAA’s Steve Kibler sonifies a sample to evenly mix and break apart larger pieces of sediment. Credit NOAA.

 

 

 

 

 

 

 

 

 

The goal is to remove all sand, sediment, and particulate matter, leaving only Alexandrium cysts (though there will always be some residual matter). After 30-45 minutes, the samples are ready for the freezer, and we have to clean everything.

filter1

The sonified  sediment sample is filtered through a 100 micron screen to remove larger particles, allowing for a cleaner and easier count of the cysts later on. Credit NOAA.

filter2

After the larger sediment components are filtered out, the remainder is filtered with a 20 micron screen, this time to trap the cysts (25-45 microns in diameter) and allow the finer particulates to fall through. Credit NOAA.

We may go through a lot of mud for just a few tiny cysts, but those cyst counts are necessary for developing accurate forecasts of the Alexandrium blooms in 2015. Plus, it’s nice to get out of the office and get into some dirt once in a while.

mudslayers

A sampling team of NOAA’s Leslie Irwin and WHOI interns Kali Horn and Lindsey Peter show they aren’t afraid to get dirty in the name of science! Credit NOAA.

You can track the Okeanos’ progress during our cruise here, and follow NCCOS on twitter @NOAAcoastalsci.

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Preparing for Science at Sea – Days 1-2 of HAB-Cyst Sampling

On Tuesday, twelve NOAA and Woods Hole Oceanographic Institution (WHOI) scientists left the dock in Rhode Island, made our way through the Cape Cod Canal, and finally found open water in the Gulf of Maine by 2pm. We were ready for a series of round-the-clock shifts, sampling for cysts of the harmful algae Alexandrium, the results of which will inform next year’s harmful algal bloom (HAB) forecast.

Our gateway onto the Okeanos. Credit NOAA.

It was no small feat to reach this point, and so much more lies ahead over the next eight days. We are sampling from the NOAA ship Okeanos Explorer, now transformed into a working laboratory for our use. All of our equipment, including but not limited to sediment corers, a flow cytometer, microscopes, pipettes, sieves, test tubes, and a sonifier, ws carried, secured, and stored onboard.

WHOI's Bruce Keafer demonstrating how to position the core for sediment sampling.

WHOI’s Bruce Keafer demonstrating how to position the core for sediment sampling. Credit NOAA.

The first night, Bruce Keafer, the lead researcher from WHOI, gathered us in the dry lab to explain the sampling and processing methods. We would be split into three groups of four, each group responsible for covering two four-hour shifts every 24-hours. I’ve been placed on the 8-12 shift, meaning I help with sampling from 8am to noon and 8pm to midnight. The other shifts are 12-4 and 4-8. When we aren’t on duty, you can find us eating, sleeping, and observing at a variety of odd hours.

After only two days, the primary lesson of this cruise can be nothing else but ‘always be prepared.’ This could relate to preparing for actual emergencies on the ship, having a backup strategy to a planned method, or having backup supplies if originals are lost or broken.

NCCOS' Terry McTigue wearing the 'gumby' survival suit during a safety drill.

NCCOS’ Terry McTigue wearing the ‘gumby’ survival suit during a safety drill. Credit NOAA.

The crew of the Okeanos runs us through a set of safety drills, recognizing alarm signals, locating muster points, and putting on survival equipment. During one drill, we hear six or more short blasts followed by a drawn out alarm signals to ‘abandon ship!’ and we scramble to grab our life vest and neoprene survival suits and put them on in under a minute (no easy task), after which we all look like red mutations of Gumby.

Our sampling sites, scattered throughout the Gulf of Maine, can be sampled in any order depending on where the weather and waves are safest for us to work. We have two back-up sediment corers in case something breaks on the primary. We have duplicate core tubes and test tubes and beakers and stirrers. We even save excess sample product just in case.

This concept of preparedness was put in action before even the first shift when a malfunction called for us to swap out the sediment corer for the alternate. So far, it seems we will let nothing stand in the way of our mission.

A beautiful sunset on day 2 of the HAB cyst sampling cruise from the upper deck of the Okeanos Explorer.

A beautiful sunset on day 2 of the HAB cyst sampling cruise from the upper deck of the Okeanos Explorer. Credit NOAA.

Posted in Harmful Algal Blooms, National Centers for Coastal Ocean Science, National Oceanic and Atmospheric Administration, Ocean Research, seafood safety | Tagged , | Leave a comment

The Tide Rules This Place

Some of the crew on deck.

Some of the crew on deck.

By Ian Hartwell, NCCOS Oceanographer

This project was designed to provide baseline data on the ecological health  and condition of the bottom dwelling communities in the Nushagak and Kvichak Bays in Alaska. Almost no information exists for this area despite the fact that the most important salmon spawning run in the world passes through these waters every year on the way to the watersheds of the Nushagak , Kvichak  and other rivers, Lake Illiamna, and the chain of lakes in the Wood-Tikchik State Park. It is also an important feeding ground for marine mammals and tens of thousands of migrating seabirds.  The landscape is magnificent,  featuring everything from vast stretches of wetlands to smoldering volcanoes covered by glaciers. We started this effort last fall, but bad weather forced us to abort the field work until 2014.  We’re hoping for better weather earlier in the summer.  The plan was to start in Kvichak Bay at Naknek and work our way around to Dillingham at the head of Nushagak Bay to the west.

Researcher Tony Pait itemizing the samples.

Researcher Tony Pait itemizing the samples.

6:00AM flights to Alaska are rough.  We were in transit all day and finally arrived in King Salmon mid-afternoon local time, 13 hours after we left home.  Since the sun doesn’t set until 11:00 at night, we still had plenty of time to get oriented.  Most of our gear was in storage at the US Fish and Wildlife Service, Becharof Wildlife Refuge headquarters in King Salmon, Alaska. The Refuge  provided housing and a vehicle for the project, which was a tremendous help, and cost savings for the project.  We will utilize the bunkhouse for as long as possible.

Researcher Dennis Apeti with the bottom grab used to take sediment samples.

Researcher Dennis Apeti with the bottom grab used to take sediment samples.

On Friday,  we unpacked all the gear and got it organized into things we need on the boat for sampling and things we need to keep at the Refuge until we leave for open water some days ahead.  We’ll have to ship all the samples and gear out of Dillingham, so organizing now is important.  We drove 20 miles to Naknek to locate the landmarks we’ll need to coordinate with the charter boat.  We haven’t actually met with the boat crew yet, and they were out collecting salmon from the gill net boats for transfer to the processing plant.  At the end of the peninsula, people were catching fish in gill nets set perpendicular to the beach and fished at low tide.   Looks like backbreaking work in cold rough water.   Twenty miles in the other direction (there’s only one road) is the boundary of Katmai National Park at the base of Naknek Lake, where we catch our first glimpse of  the many local grizzly bears hunting salmon on the other side of the Naknek River.  There are plenty of  fresh bear tracks on our side of the river as well.  The weather is deteriorating into rain and cold wind.

Dock showing the extreme tidal conditions.

Dock showing the extreme tidal conditions.

By Saturday morning the weather had cleared and it was cool but calm.  We met the boat at the fuel dock and got underway just at slack high tide.  After unpacking the sampling gear and getting set up on the deck we started out to our first station. It took quite a while to locate a spot where we could find fine-grained sediments.  The boat was also doing double duty  as several fishermen  arrived  to offload their catch into the hold.  By the afternoon, we needed to offload our samples and process them for storage and shipment.  But, by now the tide had dropped over 25 feet.  The boat could not get to the north side of the river without getting  stuck.   There was barely enough water to bring the skiff up to the wharfs.  What had been the waterfront was now two stories above our heads!  The only way in or out was going up and down steel ladders and hauling up the samples on ropes or in backpacks.

Every day required planning and timing to be able to come and go with the tide.   Every day started an hour later and ended an hour later.  As we worked our way further down Kvichak Bay, timing became more and more important.  Eventually we  had to wait out the low tide at the mouth of the river and didn’t get back to King Salmon till dark, which was midnight  there.  Running aground on uncharted sandbars was a recurring problem as the tidal currents reworked the bottom  every 6 hours.

Sockeye salmon heading upstream to spawn.

Sockeye salmon heading upstream to spawn.

By Wednesday the weather again became a factor.  We had finished the upper Kvichak and were all packed up to head west and work our way around Etolin Point into Nushagak Bay. But at the mouth of Kvichak Bay the wind had come around from the west at 20 knots.  Riding at anchor with the wind pushing us one way and the tide pushing another,  we were in the trough all the time and the deck was rolling more than 30 degrees. With 4-5 foot seas,  sampling became too dangerous with the 100 lb sampler swinging in all directions  above the deck. So after only getting two samples that day we turned north and rode the tide back to Naknek where we sat for the next two days and waited for the wind to die down.  We quickly realized that getting small craft weather advisory information twice daily should be an integral part of our planning.  That did allow time to visit Katmai National Park  and the famous Brooks Falls, where grizzly bears gather to feast on salmon and ignore the people gawking at them from shore.

Friday night we stayed on the boat and left with the tide at 4:00 AM.  The weather was calm, and bottom sampling and trawling went smoothly.  We finished the lower Kvichak and started working our way into the Nushagak.  The bottom was rocky, and progress was slow at first. But, since the sun doesn’t go down until late,  we worked until 9:00 at night.  We picked up most of the sites we needed but sieving the samples was time consuming because the sediment was so sandy.  Saturday night I slept on the galley bench. The middle bunk up under the bow was so cramped it was like trying to sleep in a coffin.  There wasn’t even room to roll over.

Taking a quick nap between sampling stations.

Taking a quick nap between sampling stations.

Sunday morning was calm and sunny.  We finished the lower stratum  on our first station! A good sign. The rest of the day was spent compositing samples, sieving coarse sand and trawling.  The trawls were a little frustrating  because all we caught were smelt and a few big flounder, and thousands of little brown shrimp, plus the occasional cod and sculpin.  The smelt and flounders were what we were after,  to send to the chemistry and the histology labs.  But last year we caught little flounder.  So to be able to compare last years’ catch with this year, and to look at body burdens between  old vs young fish we need to find little ones as well.  Perhaps the juveniles stay out of  open waters.  We finally caught some that were a little smaller and they had to do because, once again, we were ruled by the tide and needed to make our way to Dillingham  by high tide so the boat could get into the harbor and dock before the piers went dry as the tide fell.  Our University collaborators  gave us a lift to town, where we had a quick sandwich for dinner and then set off to the campus to sort the samples  and divide them into frozen, cooled or  preserved lots.  Another long evening, but we had collected everything we had set out to do.

Brown bear catching salmon.

Brown bear catching salmon.

Monday was spent unloading the boat and packing up to leave. Packing gear. Packing samples. Packing belongings. Packing more gear. Everything had to be packed and flown out of Dillingham.  Some shipments were going to the NOAA lab at Oxford, some to our office at Silver Spring, some to the freezers at our collaborators at the Alaska Dept. of Environmental Conservation (DEC) in Anchorage, some to the taxonomy lab in Seattle.  The next day we delivered a huge volume of  boxes and coolers to the little air freight desk.  It took two trips in a Suburban to get it all there. Once again the Fish and Wildlife Service had helped us out with the loan of a vehicle from the Togiak Wildlife Refuge.  All they wanted in return was a public seminar on the project.  We had arranged this previously so I had a presentation prepared. One of the slides showed the differences in the distribution of DDT and PCBs around coastal areas from the NS&T Bioeffects data base.  I was flabbergasted  when a high school student asked what DDT was.  I guess it’s a good sign that one of our mistakes is so far behind us that school kids don’t even know what it is but sadly, I fear, so too is Rachel Carson.  That evening we

The harrowing descent to the boat during low tide.

The harrowing descent to the boat during low tide.

followed the samples to Anchorage.  The last day was spent doing, what else, packing samples.  The DEC had put our samples and ice packs in freezers and refrigerators so we could repack them for the overnight shipment to the labs.  Overnight transport to the lower 48 isn’t possible from Dillingham.  So, some were packed frozen, others refrigerated, others preserved. Taking proper care of the samples and getting them to where they need to go can be as complicated and require as much planning as collecting them in the first place, but we didn’t have to worry much about the high tide.

For more information contact Ian Hartwell (Ian.Hartwell@noaa.gov)

Dr. Ian Hartwell, guest blogger, on deck.

Dr. Ian Hartwell, guest blogger, on deck.

Dr. Ian Hartwell is a Marine Biologist with a Ph.D. from Virginia Polytechnic Institute and State University. He is currently Chief Scientist for NS&T Bioassessment Projects to manage monitoring and assessment programs in estuarine and coastal systems at various locations around the US, including response and damage assessment projects for the Deepwater Horizon disaster.   Experienced in operation and management of field and laboratory research programs on ecological fate and effects of pure compounds, mixtures, effluents, spills and runoff using acute and sublethal toxicity, physiological, behavioral, and chemical assessments. 

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