Lisa Battig: DRs, The Survey Team and A Goodbye in Kodiak, September 8, 2017

NOAA Teacher At Sea

Lisa Battig

Aboard NOAA Ship Fairweather

August 28 – September 8, 2017

 

Mission: Alaskan Hydrographic Survey

Geographic Location: Kodiak and Anchorage Airports and back home

Date: September 8, 2017

 


map of route to kodiak

A map of the long transit south from the through the Aleutians and then northeast to Kodiak (the dark green line was the Tuesday evening through Friday morning transit from the Yukon River delta)

The last three and a half days of the experience were the transit back to Kodiak. This gave me a lot of time up on the bridge and in the surveyors’ work areas.

So many things impressed me about the crew on this trip.  I think most of all, seeing that a group of young scientists between 22 and 38 (I believe) were ultimately responsible for all of the ship operations and were doing a phenomenal job! Fairweather has the largest number of junior officers on board and the atmosphere is of constant training. I kept thinking about the ages of most of the junior officers and how my own students could be in this position in a few years. The opportunity to grow as a member of a uniformed service and receive all of the training while still being able to pursue the sciences is incredible to me and I intend to make sure that my students know about the opportunity. I can’t tell you how many times I thought, “If I had just known this existed when I graduated college…”

 

On the long trip back, we were traveling through dense fog, narrow rocky passes in the middle of the night, and areas of high and sometimes unpredictable currents. We even managed a rendezvous with another NOAA vessel in order to pass of some medical supplies. Throughout all of it, I watched the NOAA Commissioned Corps officers handle everything with tremendous grace under pressure. But on Fairweather, I found out their work does not stop with the ship operations. Each of the officers are also directly involved with the hydrographic science, and have responsibility for a specific survey area.

The Survey team are also responsible for specific survey areas.

Drew & Bekah

Survey techs Bekah and Drew at their computers. If they’re not eating, sleeping, working out, or on a survey boat – this is probably what they’re doing!

For each area owner, this culminates in a final report (called a Division Report, or DR) giving details of the survey and talking through all anomalies. Survey work does not stop. These folks are working 7 days a week and often 14+ hour days when they are out at sea.

In some cases the owner of a survey area will have very intimate knowledge of a survey area because they had the opportunity to be out on the survey boats. But in many cases, this will not be true. Ultimately their responsibility is making absolutely certain that every piece of necessary information has been gathered and that the data is clean. I was told that in most cases, writing the final report will take a couple months.

These reports will eventually become mapped data that is accessible to anyone through the National Centers for Environmental Information (NCEI). But it will also be sent in various forms to be housed for shipping navigation and other industries.

Sleepy Surveyors

If you’re working long hours 7 days a week, you learn to take advantage of any opportunity you get to rest. A couple members of the survey team, catching a nap on the transit back from the Yukon Delta to Fairweather.

With all of the work they do at sea, ports can become very welcome places. The Fairweather crew had gone into port at Nome, Alaska several time through July and August and were excited to pull into Kodiak. Even on our transit south, I watched the crew get more excited as they left the desolation of the tundra and we began to see cliffs and trees again.

I am so glad that I saw the tundra finally, and that I will now be able to explain it more fully to my students, but I can also completely understand how the sheer vastness of the northern parts of Alaska could make you long for more varied terrain.

Kodiak harbor

Harbors in Southern California don’t look like this!! Coast Guard Base harbor in Kodiak, AK

I only got to spend one day in Kodiak, but it is a breathtaking place. I didn’t get to do any serious hiking, but I did see the salmon running and ended up on an old nature trail. And the best part was that I got to see a bunch of amazing people relax and enjoy their time away from work.

Would I do this again if I had the opportunity? Unequivocally YES!! I would jump at the chance!

Would I recommend this to other teachers? Absolutely! It is an amazing experience. Granted, I think I had the best ship with the best crew…

 

 

Kate Schafer: The Importance of Science, October 4, 2017

NOAA Teacher at Sea

Kate Schafer

Aboard NOAA Ship Oregon II

September 17 – 30, 2017

 

Mission: Shark/Red Snapper Longline Survey

Geographic Area of Cruise: Gulf of Mexico

Date: October 4, 2017

 

Weather Data from the San Francisco Bay area:

Latitude: 37o 38.4’ N
Longitude: 122o 08.5’ W

Visibility 16 km

Winds 5-10 mph

San Francisco Bay Water Temperature 16 oCelsius

Air Temperature 17 o Celsius

 

Science and Technology Log:

Well, I’m back on dry land, with lots of great memories of sharks, big and small, and all the interesting people who I spent two weeks with on the Oregon II.  And let’s not forget the red snappers either.

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The largest shark we caught: 10 foot tiger shark

 

CubanDogfish

Cuban dogfish: The smallest species we caught

On our last day, we fished at a couple of sites right off the coast of Alabama and caught lots of sharks, plus a new species of grouper for the trip.  The scamp grouper (Mycteroperca phenax) is apparently not frequently found on the longlines along the coast of Texas but becomes more common along the coasts of Mississippi and Alabama and up the Eastern Atlantic coast as well.

ScampTail

Tail of a Scamp Grouper

The groupers are mostly protogynous, meaning that when they become sexually mature, they are always females.  Only later in life, when they have grown bigger (and have the right environmental influences), do they transition to males.  This species can live for more than 30 years, but that’s actually relatively short for a lot of the grouper species, some of which can live to 60 years or more. Scamp grouper come together in groups to reproduce, so this makes them vulnerable to overfishing.  The management councils take this into consideration when making a management plan and will close off areas known to be spawning grounds during the reproductive season.  These are also great areas to target as Marine Protected Areas.

ScampHead

Scamp Grouper being measured

All of this knowledge about the scamp grouper (and other species we encountered on this survey) was gained through careful scientific research.  As mentioned before, the long line survey was started in 1995 and has been conducted using the same methods every year since then.  These data are used by fisheries managers to set catch limits and detect changes that might indicate problems for the species living in these areas.  In other words, the science forms the basis for decision making and planning.

This is true for the various surveys that NOAA conducts in the Gulf each year.  The Groundfish Survey, for example, provides vital information about the extent of the Dead Zone off the coast of Louisiana, by measuring dissolved oxygen levels on the sea floor as part of the survey.  This data tells us that we need to continue to work on controlling nutrient inputs into the Mississippi River from agriculture lands and cities that span much of the eastern United States.  Scientific research also tells us that we need to be planning for and mitigating the effects of the looming problem of climate change.

Climate change will certainly bring about significant change to the Gulf.  As ocean temperatures rise, water becomes less dense and therefore takes up more space.  Along with continued melting of land-supported ice in the polar regions, this is contributing to a cumulative increase in sea level of 3.2 mm per year (https://oceanservice.noaa.gov/facts/sealevel.html).  In the Gulf, this increase will particularly impact estuarine ecosystems that are rich nurseries for many fish species and are extremely productive habitats.

One of the predictions of many climate models is that increased global temperatures are likely to bring about more frequent and more intense hurricanes.  This 2017 hurricane season is a stark reminder of the devastating impacts that hurricanes can have, even when we have the scientific tools to predict approximately where and when the storm will make landfall.

Finally, the increase in global temperatures will make the regions surrounding the Gulf less pleasant places for people to live.  The summers are already very hot and humid, and a degree or two hotter will make a lot of difference in the livability of the region.

We know all of this through careful scientific research, and there is a consensus amongst scientists that this is happening.  To prepare for the effects of climate change and to know how to best minimize those effects, we must continue to collect data and do science.  After all, what is the point of scientific research if we don’t use the results to make better choices and to address the problems that are facing us?

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At the end of my time on the Oregon II

Personal Log:  I am so grateful for the opportunity to go on this research survey and for the Teacher at Sea program as a whole.  I strongly encourage any teacher thinking of applying to the program to do so.  Thanks to NOAA and everyone at the TAS office for all your help and support.

 

 

 

 

 

 

 

Kate Schafer: A Day in the Life… September 29, 2017

NOAA Teacher at Sea

Kate Schafer

Aboard NOAA Ship Oregon II

September 17 – 30, 2017

 

Mission: Shark/Red Snapper Longline Survey

Geographic Area of Cruise: Gulf of Mexico

Date: September 29, 2017

Weather Data from the Bridge:

Latitude: 29o 11.3′ N
Longitude: 88o 18.3′ W

Few clouds

Visibility 10 nautical miles

Wind speed 8 knots

Sea wave height 1 foot

Temperature Seawater 29.4 o Celsius

Science and Technology Log:

So, as my time on the Oregon II is winding down, I thought I’d share a bit about what it is like to do science on a boat.  First of all, there is a tremendous amount of planning that must go into a successful survey in the weeks and months beforehand.  In addition to all the logistics of going to sea for two weeks, there is the challenge of putting together a crew of scientists that can be away from their day to day jobs and lives, and agree to work 12 hour days, for weeks on end.  Lisa Jones is the Field Party Chief for this survey and must figure out those logistics plus organize the science part as well.  This survey has been going since 1995, and one of the keys to longitudinal data sets is that they keep standard methods throughout, or else the data aren’t comparable.

This can be challenging in all sorts of unforeseen ways.  For example, a few years ago, it became difficult to find the mackerel used as bait on the longlines.  During an experimental survey in the spring, they tried out squid as an alternative and caught a totally different composition of species.  Fortunately, the mackerel became more available again, and the problem is no longer an issue, for now.

MackerelBaitedHooks

Hooks baited with mackerel

Lisa is also the one responsible for working with the captain and his crew to determine sampling locations and a plan for getting to those locations.  There’s a plan at the beginning, but, of course, that changes frequently, due to weather, the locations of other ships and a myriad of other unforeseen circumstances.  The goal is to reach 200 sites per year, with 50% between 5-30 fathoms (1 fathom=6 feet), 40% between 30-100 fathoms, and 10% between 100-200 fathoms.  These percentages reflect the depths of the continental shelf area throughout the sampling region. Below is a sampling map for the 2015 longline survey.

SamplingStations

Sampling stations for 2015 Longline survey from 2015 Cruise report

During a longline set, the line is deployed for one hour before retrieval, with 100 baited hooks.  As the line comes in, each fish is given three to four measurements (depending on the species) and is weighed.  Many of the sharks are tagged, as this provides the possibility of someone finding the tagged shark in the future.  With a tag retrieval, we can learn about how far the organism has traveled and how much and how quickly it has grown.

Shark Cradling team_Shark LL SEP2017

Measuring and tagging shark in the cradle

As I mentioned in my post about the red snappers, the snappers, groupers and tilefish are dissected for their otoliths and gonads.  They can’t be successfully released in most circumstances anyway, due to barotrauma from pulling them quickly to the surface from depth.

YellowEdgeGrouper

A Yellowedge Grouper weighing nearly 20 kg

Sharks are less affected by barotrauma because they don’t have swim bladders to maintain their buoyancy like the bony fishes we’ve been catching.

PullingInShark

Caught on the longline

Here are a couple examples of our data sheets.  As you can see, some sets have more fish than others (in fact the full one, was only one of three pages).  Once all the data are collected, they have to be entered in the computer for later summary and analysis.  Some days it can be a big challenge to get all the data entered before it’s time to start all over again.  Other days, like today, include lots of travel time.

DataSheetEmpty

Only a tilefish on this set…

 

DataSheetFull

Many more on this one…in fact this is only one of three pages

 

Personal Log:

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Tiger shark filling the 10 foot cradle

For me, it has been truly wonderful to get to work as a scientist again, if just for a couple of weeks, especially with such an amazing group of scientists.  I’ve learned so much from my fellow day crew members (Lisa, Christian, Nick and Jason).  They have patiently answered all my questions, even when it was keeping them from getting to dinner.  Lisa Jones has gone above and beyond in her support of me, even though she has had many other responsibilities on her plate.  I also appreciate being made to feel welcome lurking around the night crew’s catches.  Thanks especially to Christophe, Vaden, and Eric for allowing me to hang out in the measuring pit.  I love my job as a teacher, but part of me definitely misses working as a field biologist.  I am grateful for the opportunity and especially thankful for my wonderful family.  I can’t tell you how much I appreciate your support and love.

 

Kate Schafer: The Gulf of Mexico; September 27, 2017

NOAA Teacher at Sea

Kate Schafer

Aboard NOAA Ship Oregon II

September 17-30, 2017

 

Mission: Shark/Red Snapper Longline Survey

Geographic Area of Cruise: Gulf of Mexico

Date: September 27, 2017

Weather Data from the Bridge:

Latitude: 28o 10.1’ N
Longitude: 93o 07.8’ W

Scattered clouds

Visibility 10 nautical miles

Wind speed 8 knots

Sea wave height 1-2 feet

Temperature Seawater 29.2 o Celsius

Science and Technology Log:

As described in the last blog post, fisheries are regulated by different management councils that represent particular regions of the country.  Of all the different regions, the Gulf of Mexico arguably has the most distinct boundaries of the eight different management councils.  If you look at the Google satellite image below, there are likely a couple of things that jump out at you.  First is that the gulf is almost completely surrounded by land.  It’s less than 100 miles from Florida to Cuba and only about 120 miles at the closest point between Cuba and the Yucatan Peninsula.  This means that there is a lot of potential for the land surrounding the gulf to impact the neighboring waters.

GoogleMapGulfofMexico

Google map satellite image of the Gulf of Mexico

This and the fact that there are some major rivers flowing into the gulf contribute to the formation of what is known as the dead zone.  The dead zone extends along the coasts of Louisiana and Texas, and is caused by extreme nutrient levels in the waters of the Mississippi River.  The Mississippi contains vast quantities of nutrients from agricultural and urban runoff and so contributes abnormally high amounts of nitrogen and phosphorus to the coastal waters.   These nutrients lead to massive algal blooms that create decaying biomass that then deplete the oxygen in the waters where the blooms occur.  The map below was created by data collected on the Oregon II and shows the extent of the dead zone in 2011, so called because many organisms cannot survive in such low oxygen conditions.  The orange and red areas are regions where shrimp and fish cannot live on the sea floor.

Dead_Zone_NASA_NOAA

Dissolved oxygen levels measured during the Oregon II groundfish survey in 2011.  The orange and red areas indicate dissolved oxygen levels on the sea floor below 3 mg/L.

The other noticeable feature of the Gulf as a whole is that there is a lot of shallow water, with the continental shelf extending up to around 200 miles offshore in some areas.  It is especially thick along the coasts of Florida and the Yucatan.  These shallow areas, help to create warm water temperatures, and this helps to provide the energy for hurricanes.  The relatively shallow waters have been a factor in the development of offshore oil drilling, and we’ve passed scores of them along the way.

OilPlatformsBlog5

Some of the oil rig platforms we’ve passed on our trip

The NOAA map below gives a better idea of how abundant the rigs really are.  The construction of these rigs creates significant risk, as evidenced by the Deep Water Horizon explosion and subsequent oil spill.  The explosion happened in April 2010 and the spill continued for nearly three months.  NOAA was involved in documenting the impacts of the spill from the earliest days and will be able to use this information to improve containment and cleanup after future spills.

Except where nutrient levels are excessively high because of human influence, the nutrient rich waters of the Gulf support abundant life, and we’ve been experiencing that for sure.  I’m realizing that we’re only seeing a small snapshot of the diversity of habitats that are found in the Gulf.  There are deep water methane seeps, estuaries, coral reefs, and other reef systems that support different organisms and abundant life.  The Gulf is a vital resource that provides healthy fisheries, but it’s also a thriving ecosystem in its own right.  By coming out on a yearly basis, the scientists conducting these surveys can get an idea of how these ecosystems are faring…kind of like a report card, I guess.

Personal Log:

I have just been loving the sunsets!  I make a point to get outside around 7, if I can, so I can check out the latest one.  Here are just a couple examples.

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Sunset, September 26

SunsetBlog5

Sunset, September 25

 

 

 

Kate Schafer: So Many Snappers… September 24, 2017

NOAA Teacher at Sea

Kate Schafer

Aboard NOAA Ship Oregon II

September 17 – 30, 2017

 

Mission: Shark/Red Snapper Longline Survey

Geographic Area of Cruise: Gulf of Mexico

Date: September 24, 2017

Weather Data from the Bridge:

Latitude: 28o 25.1’ N
Longitude: 94o 50.3’ W

Broken sky

Visibility 10 nautical miles

Wind speed 13 knots

Sea wave height 2-3 feet

Temperature Seawater 28.8 o Celsius

Science and Technology Log:

This is a shark and red snapper longline survey, and the sharks tend to steal the stage.  They are bigger (for the most part), more diverse and definitely have more of a reputation.  I have been surprised, however, by how much I’ve been drawn to the snappers.  They are a beautiful color, and tend to come up in groups that are pretty similar in size.

RedSnapper

Red snapper (Lutjanus campechanus) ready to be measured

The Northern Red Snapper (Lutjanus campechanus) is commonly fished in the Gulf of Mexico, both recreationally and commercially.  It turns out that the commercial fishers get 51% of the catch quota and the recreational fishers get 49%.  The methods for dividing up those two basically equal pieces of the pie is different between the commercial and recreational fishers. In addition, the commercial fishing catch is monitored very closely, while the recreational fishing catch numbers are largely unknown.  Plus, the states have their own waters that extend out to different distances, depending on the state, and the federal waters extend from the state water boundary to 200 nautical miles offshore.  So, in other words, managing the fishery is quite complicated.

So, how do all these fishing rules and regulations get established and modified over time?  A law was passed in 1976, called the Magnuson-Stevens Fishery Conservation and Management Act, and one of the key parts of the act established eight regional management councils for regulating fishing in federal waters (more information on the act here: http://www.nmfs.noaa.gov/sfa/laws_policies/msa/).  It also established the 200 nautical mile extension of federal waters from land.  The Gulf of Mexico Fishery Management Council (GMFMC) is responsible for creating Fisheries Management Plans (FMPs) for fisheries within the U.S. federal waters of the Gulf of Mexico, from southern Texas, along Louisiana, Mississippi, and Alabama, and down the west coast of Florida.  This graphic shows the catch limits for red snapper and other species for 2017 set by the GMFMC.  For red snapper, the catch limit is close to 14 million pounds.

2017ACLBLOGGraphic_07-17-1024x663

Annual Catch Limits as set by the Gulf of Mexico Fishery Management Council (http://gulfcouncil.org/fishing-regulations/federal/)

The data that we are collecting helps scientists and policy makers to determine what the annual catch limit for a particular season should be.  For each fish that we bring on board, we measure the fish length and weight, as well as the weight of the gonads.  In addition, we collect their otoliths (ear bones) and samples of the ovaries of females.  These both help managers to estimate the age and size of the population, and future populations as well.

Otoliths are calcium carbonate hardened structures and are present in the part of the inner ear that is responsible for balance.  Humans and other vertebrates have them too, and they can be used to tell the age of the fish.  The otoliths of Lutjanus campechanus are quite large.  There seems to be an overall relationship between the habitat of the fish species and the size of the otolith.  Species like Lutjanus campechanus that live along reefs and rocky structures have much larger otoliths than species like tuna that swim up in the water column.  Flying fish, which we’ve seen a lot of, also have large otoliths, given their body size, probably aiding them in knowing where they are as they glide through the air.

Otoliths

Otoliths taken from one of the red snappers we collected

Well, we have been collecting a lot of data over the past couple of days to help inform these policies in the future!  Each line we’ve pulled in lately has had a dozen or more snappers on it,  and they are a lot of extra work as compared with the sharks, due to all the samples we have to collect once we’re done.  A couple times, we’ve barely finished before it was time to start baiting lines again.

Personal Log:

As I mentioned earlier, I’ve really come to love the red snappers.  Their eyes are the same color as their skin and I’m just awed by their size.  I am used to snappers that I’ve watched on coral reefs, and even the largest species I’ve seen on reefs are nothing compared with these guys.

SnapperEye

Red snapper (Lutjanus campechanus) eyes

I’ve also adjusted to the shift in my day, as evidenced by the fact that I’m finishing this up at 1 a.m.  It has been a long time since I’ve been on this kind of late night schedule.  I’m enjoying it, especially because I know when I return to California, I’ll be getting up at 5:30 a.m. again.

 

Did You Know?

That snappers eat a wide variety of different foods, including fish and various types of crustaceans? Here are a couple of items we’ve found in the ones we’ve caught.  Can anyone identify them?  I studied the second group for my Ph.D. dissertation!

MoleCrab

Mystery snapper food

Stomatopod

More snapper food

 

 

 

 

 

Jenny Smallwood: From Jellies to Worms, September 21, 2017

NOAA Teacher at Sea

Jenny Smallwood

Aboard NOAA Ship Oscar Dyson

September 4 – 17, 2017

Mission: Juvenile Pollock Survey
Geographic Area of Cruise: Gulf of Alaska
Date: September 21, 2017

Weather Data from Virginia Beach, Virginia
Latitude: 36⁰ 49’13.7 N
Longitude: 75⁰ 59’01.2 W
Temperature: 19⁰ Celsius (67⁰ Fahrenheit)
Winds: 1 mph SSW

In just a matter of days, my world has gone from this

(we often had a crazy amount of jellyfish to sort through to find the year 0 Pollock)

to this….

(my super worms are warming up their races at the scout overnight tomorrow)

It’s also given me a few days to reflect on the incredible experience I had at sea.

Science and Technology Log

Science is a collaborative. Many people do not realize the amount of teamwork that goes into the scientific process. For instance, several of the scientists on board my cruise don’t actually study Pollock. One of the guys studies Salmon, but he was still on the cruise helping out. I think that’s what really struck me. The folks from the NOAA Northwest Fisheries Science Center pull together as a team to make sure that everyone gets the data they need. They all jump on board ships to participate in research cruises even if it’s not their specific study area, and it’s quite likely someone else is in another location doing the same thing for them. At the end of the day, it’s the data that matters and not whose project it is.

Personal Log

Since returning home, the most frequent question I have received is “what was your favorite part?” At first, I didn’t know how to answer this question. To have such an incredible experience crammed into two weeks, makes it difficult to narrow it down. After a few days of reflection, I finally have an answer.

The onboard relationships were my favorite part of my Teacher at Sea cruise. I appreciated that the entire crew took me under their wing, showed me the ropes, and made 12 hour shifts sorting through jellyfish for Pollock fun! This is the only place where I could have the opportunity to work and live with scientists in such close proximity. I was fascinated by each scientist’s story: how they got into their specialty, what their background is, why they feel what they’re doing is important, etc. I learned that 10 pm became the silly hour when the second cup of coffee kicked in along with the dance music. I learned that beyond Pollock research these folks were also rescuers taking in tired birds that fell onto the ship, warming them up, and then releasing them.

When the next person asks “what was your favorite part?” I will be ready with an answer along with a big smile as I remember all the goofy night shifts, the incredible inside look at sea based research, and the wonderful people I met.  Oh, and the views.

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The view from Captain’s Bay near Dutch Harbor, Alaska before a big storm blew in.

 

And We’re Fishing…

NOAA Teacher at Sea

Kate Schafer

Aboard NOAA Ship Oregon II

September 17 – 30, 2017

 

Mission: Shark/Red Snapper Longline Survey

Geographic Area of Cruise: Gulf of Mexico

Date: September 21, 2017

 

Weather Data from the Bridge:

Latitude: 27o 15.5’ N

Longitude: 97o 01.3’ W

Haze

Visibility 6 nautical miles

Wind SE 15 knots

Sea wave height 3-4 feet

Sea Temperature: 29.6o Celsius

Note: Just a month ago Hurricane Harvey was bringing 20 foot seas to this area, but today we’re enjoying the 3-4 foot swell.

Science and Technology Log:

Well, we’ve gotten to the fishing grounds, and we’ve gone from waiting to very busy!  We put out the first lines starting at around 8 pm on Tuesday evening.  The process involves first baiting 100 hooks with Atlantic mackerel.  When it’s time for the line to be deployed, first there is a tall buoy with a light and radar beacon (called a high flyer) on it that gets set into the water, attached to the monofilament fishing line.  Then there’s a weight, so the line sinks to the bottom, a series of 50 baited hooks then get clipped onto the line as the monofilament is being fed out.

Those 50 hooks are referred to as a “skate”.  This confused me last night when I was logging our progress on the computer.  I kept thinking that there was going to be some kind of flat, triangular shaped object clipped on to help the line move through the water…not really sure what I was imagining.  Anyway, Lisa Jones, the field party chief and fisheries biologist extraordinaire, has so kindly humored all my questions and explained that skate is just a term for some set unit of baited hooks.  In this case, the unit is 50, and we’ll be deploying two skates each time.

After the first skate comes another weight, the second skate, another weight and then the last high flyer.  Then the line is set loose and we wait.  It’s easy to locate the line again, even at night, because of the radar beacons on the high flyers.

Why are we collecting this data?

As mentioned in my previous post, one of the tasks of NOAA, especially the National Marine Fisheries Service Line Office, is to collect data that will help with effective fisheries management and assist with setting things like catch quotas and so forth.  A catch quota refers to the amount of a particular species that can be harvested in a particular year.  Fisheries management is incredibly complicated, but the basic idea is that you don’t want to use up the resource faster than it is replenishing itself.  In order to know if you are succeeding in this regard, you must go out and take a look at how things are going.  Therefore, the Oregon II goes out each year in the fall and samples roughly 200 sites over about eight weeks.  The precise locations of the sampling sites change each year but are spread out along the SE Atlantic Coast and throughout the U.S. waters in the Gulf of Mexico.

We’ve put out three long lines so far.  Last night, we caught a single fish, but it was a really cool one.  It’s called the Golden Tilefish but has an even better species name: Lopholatilus chamealeonticeps.  As Lisa was explaining that they dig burrows in the sea floor, I realized that I had seen their cousins while snorkeling around coral reefs but would never have made the connection that they were related. This guy was big!

 

Tilefishp3

Golden tilefish (Lopholatilus chamealeonticeps) caught in first longline of the trip

This afternoon, things got really hectic.  Of our 100 hooks, 67 had a fish on it, and 60 of those were sharks.  As we were pulling in the last bit of line, we pull on a shark that was missing its back half!  Another had a bite taken out of it.  And then on hook number 100, was a bull shark.  This shark had been snacking along the line and got caught in the process.

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Bull shark caught on the last hook of a very productive bout of fishing (Photo courtesy of Lisa Jones, NOAA)

And I haven’t even mentioned the red snappers.  I will save them for another post, but they are absolutely beautiful creatures.

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Red snapper being measured

 

Personal Log:

I definitely continue to feel out of my element at times, especially as we were pulling in all these hooks with sharks on them, and I could barely keep up with my little job of tracking when a fish came on the boat.  All the sharks started running together in my mind, and it was definitely a bit stressful.  Overall, I feel like I’ve adjusted to the cadence of the boat rocking and have been sleeping a lot more soundly.  I continue to marvel at how amazing it is that we’re relatively close to shore but, except for a few songbirds desperate for a rest, there is no evidence of land that my untrained eyes can detect.  Lastly, I’ve realized that a 12-hour sampling shift is long.  I have a lot of respect for the scientists and crew that do this for months on end each year with just a few days break every now and then. Well, it time to pull in another line.  Next time, we’ll talk snapper.