Archive for the ‘MLML in the News’ Category

Ask a Shark Researcher

August 18, 2012

By Diane Wyse, Physical Oceanography Lab

In the spirit of sharing exciting new student research during Shark Week, we caught up with MLML and Pacific Shark Research Center graduate student Paul Clerkin.  During the spring semester of his first year at MLML he took a two-month cruise aboard a commercial fishing vessel in the Indian Ocean for his thesis research.   During that time, Paul collected sharks that came in as bycatch of the planned fishing activities – sharks that would otherwise have been thrown back overboard because they are not among the targeted species of commercial value.  Clerkin explains that the sharks that he collected were all DOA, that very few survive under the weight of fifty tons of fish.   As part of his bycatch-only collection practices, any sharks that were still alive when the fish and sharks were sorted were promptly sent back overboard to increase their chances of survival.  Below are highlights from our interview with Paul on his latest fieldwork expedition.

Paul identifying sharks from a haul in the factory of the ship.

How long was the cruise?

I spent two months at sea, and then five weeks at Mauritius.  During that time I processed and prepared samples to ship back to MLML. Overall I spent about 100 days out of the US. I remember because I had to get my visa renewed while I was there.

How many specimens did you bring back?

We brought in around 400 to the island, and around 350 made the trip back to MLML. It was just about a ton. On top of that I have hundreds of vertebrae and spines and around 800 tissue samples.

When you collected, was it usually a consistent number per day or catch, or did the numbers vary with time and location?

The catch amounts varied greatly, some mornings I’d wake up and have no sharks to work with, during which time I’d work on data processing, and other days I’d wake up and have 16+ hours of work sitting for me on the deck.  Using bottom roller gear brought in many more sharks.

What will you do with the specimens?  Are they all to be used on your thesis project, or are some saved for other projects?

The specimens will be used both for my thesis research and will be available for future research projects. We’re looking to get a lot of use out of the data. The list of possible projects and papers is pretty long.

Paul working on deck with a false catshark. Paul comments on the critter: “This species isn’t new but it is considered to be rare. I was extremely excited the first time we found one. As we caught more false catsharks over the trip I started to suspect these sharks are not as rare as previously thought. I think they just live in remote locations relatively unexplored by science. Although it is not a new species I gathered data and information on this shark that was previously unknown and will increase our understanding of this strange animal.”

Was this your longest cruise to date?

Yes, my longest cruise before this was out of AK for 90 days, but halfway through we came back to land for one day, then went back out again. After the first two weeks all the days blend together anyway.

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That’s Not a Seashell!

June 28, 2012

By Michelle Marraffini

Invertebrate Zoology and Molecular Ecology

Massive dock from Japan that washed ashore in Oregon. Photo by Oregon State Parks and Recreation Department.

At 66 feet long, 19 feet wide, and 7 feet tall, the massive dock that washed ashore on Oregon’s Agate Beach is larger then anything I have ever found on the beach.   This dock is one of the first large pieces of debris to make it across the Pacific ocean from Japan after the earthquake and tsunami in March of 2011.   According to news reports, the debris came from the northern Japanese city of Misawa, arrived almost nine months earlier than officials originally thought.

Hitchhikers from Japan made it alive and well despite the almost 5000 mile journey.
Photo by Oregon State Parks and Recreation Department

But this dock did not arrive alone.   Many organisms hitched a ride on this dock for the almost 5,000 mile journey across the ocean.   Floating docks and other harbor structures provide habitat for many invertebrates and algae.   The movement of these organisms to the Pacific Northwest, many of which are not native to this coast, may pose a threat to the diversity of native species that live there.   To prevent these possible problems, scientists and managers took samples of organisms that arrived on the dock then scrapped the remaining organisms, buried them deep in the sand up the beach, and then used blow torches to dock to remove all remnants and reproductive material of the organisms.

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Moss Landing’s 2012 Open House a Huge Success

May 17, 2012

by Angela Szesciorka, Vertebrate Ecology Lab

On April 21 and 22, Moss Landing Marine Laboratories held its 44th annual Open House. We had 2,385 visitors and raised $9,869.58. To put that into context, the first Open House in the summer of 1968 had 40 visitors! The lab has certainly grown since then and so has the surrounding community’s interest and support for marine science.

A future marine scientist having her photo taken as a scientific scuba diver. (photo by Will Fennie)

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Moss Landing Scientists Contribute Four New Shark Species

February 28, 2012

by Angela Szesciorka, Vertebrate Ecology Lab

One hundred and forty two new species were discovered last year. Four of those were deep-sea shark species discovered by Moss Landing Marine Laboratories’ Dr. David Ebert and his colleagues. Their findings, as well as some interesting facts about the sharks, were featured in National Geographic among the new species found in 2011.

The previously unknown shark species they described included Pristiophorus nancyae, Etmopterus joungi, Etmopterus sculptus, and Squatina caillieti (does that last one sound familiar?).

Pristiophorus nancyae was named by Ebert and Dr. Gregor Cailliet after it was accidentally captured in a 490-meter trawl off Mozambique. This species, also called the African dwarf sawshark, is the seventh species of known sawshark. Like all sawsharks, P. nancyae has an elongated beak (rostrum) like a sword. It will swim with schools of fish, sideswipe prey with its rostrum, then snatch them up. P. nancyae was named for Nancy Packard Burnett because of her support for chondrichthyan (sharks and rays) research at the Pacific Shark Research Center at Moss Landing Marine Labs.

Pristiophorus nancyae (Photo: Dave Ebert)

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To Meet a Giant: Responding to a Stranded Baby Gray Whale

February 13, 2012

(photo: KSBW, Amy Larson)

Brynn Hooton-Kaufman

by Brynn Hooton-Kaufman

It started as any good weekend day might.  A good cup of coffee, a good book, and a view of the bay.  I like to park my car looking out over the tidepools at Asilomar and read, letting the crashing waves add interesting sound effects to whatever scene is playing out in my current novel of choice.  Knee deep in Jurassic Park, the waves were bringing to life velociraptors crashing through the forest.  Intimidating and terrifying, those velociraptors.  But you can’t help but admire them, and the juveniles sound pretty cute.  Given the chance, I’d probably take a baby velociraptor for a pet.  At least until it started stalking me around the house.

When the sounds of my empty stomach started overpowering the thundering waves, I headed home to make some lunch and get things in order for the coming week.  Not two steps into the kitchen my phone buzzed, signaling the arrival of a text message.  More often than not, I’d have ignored it, as hunger usually wins out in my ranking of priorities.  But as all things happen for a reason, I decided to take a look, and so for once, my phone didn’t get forgotten for hours on end as it usually does.

“hey gray whale calf alive and stranded near monterey dunes colony.  TMMC is headed to the scene, we may need ur help!  r u available today?”

I had to read the message twice.  As much as people might think all marine biologists spend hours on end with dolphins, whales, and other majestic creatures of the sea, learning their mannerisms, capable of identifying any sleek shape that might be surfacing in the bay on a giving day, I hadn’t actually even seen a whaleup close.  My closest call was a pod of orcas sighted from the bow of the Point Sur during a class cruise, and I just caught a glimpse of their backs as they headed away.  Usually, my most intimate experience with whales was seeing the poof of sea spray that they leave like a footprint above the water, the proof that one of the giants had just taken a great breath before submerging.  I really don’t know much about whales.  I study seaweed.   (more…)

Big Miracle: A Whale of a Story from Operation Breakthrough

February 2, 2012

Tomorrow, Big Miracle will open in box offices across the nation, telling the story of the 1988 rescue of three gray whales trapped in the ice near Barrow, Alaska.  Dr. Jim Harvey, MLML Director and professor (and MLML alumnus), played a significant role in the operation.  Harvey, who frequently tells the story of the rescue to his grad students and now has proof of his whale-tale, sat down with us and agreed to paint the picture one more time, and fill in some of the lesser-known details.

Rescue team members Mark Fraker (left, oil company), NOAA’s Dave Withrow (center) and Jim Harvey (right, seated). (photo: Dave Withrow, NMML, NOAA)

Jim, you didn’t join the faculty at MLML until 1989, a year after the rescue operation took place?  What were you doing at the time, and how did you get involved?

That’s correct; I was doing a two-year postdoc position at the National Marine Mammal Lab (NMML) in Seattle, Washington when the story was picked up in the national media.  I had done a lot of work tagging gray whales in Baja, California with my advisor Bruce Mate while getting my doctorate at Oregon State University, and NMML recognized that I had experience with gray whales.  My status as postdoc also meant my time was more flexible than some of the other biologists.

The scientific community originally didn’t want to interfere with the whales; generally, we try to step back and let nature work its course.  However, with the whales in the national spotlight there was a lot of pressure to get involved, and since NMML had done work for years near Barrow, we were eventually asked to send biologists to help.  I, along with Dave Withrow, was asked to go, with plans to tag the whales.

(photo: Jim Harvey)

Do you know why the whales were there in the first place, and how they were discovered?

These three young whales were younger and inexperienced, and the truth was, they should have begun migrating south some time earlier when the other gray whales did.  They were trapped near Barrow, Alaska, the northernmost city in the US, where a big ice flow had traveled down and grounded itself, effectively blocking their path south.

The whales were found by an Eskimo on a snowmobile who was coming back from a day of hunting.  The Eskimo mentioned the whales to scientist Craig George.  In Alaska, the native communities hire biologists to help monitor the wildlife they harvest, conduct studies, and manage the permitting, and Craig was one of these scientists.  He was interested in recording some acoustic signals from the whales, but didn’t have any equipment to do so.  Craig went to a friend at one of the local TV station to see if he could borrow recording equipment, and the friend obliged, and others at the station asked if they could film upon hearing the story of the whales.  I don’t think Craig knew what they were planning to broadcast, but it turned out that they showed the footage on the news, and pretty soon it went viral.

(photo: Jim Harvey)

What was it like when you arrived?

When Dave and I made it to Barrow, the town was swamped with media, scientists, environmentalists, government officials, and everyone else you could think of.  There actually wasn’t even a place for Dave and I to stay.   We were flown by helicopter out onto the ice where the whales were located, and given a chance to assess their condition.  Unfortunately, one of the whales had recently disappeared, and was presumed to have died since there was no way for it to find another place to breathe.  Possibly, loud noises had likely scared it and caused it to flee from the hole.

(photo: Jim Harvey)

The good news was, however, that the Eskimos had become very efficient at cutting through the ice.  There aren’t exactly a lot of trees around Barrow, so the town didn’t have any chainsaws.  A generous company actually called the town and had some sent up to help with the effort.  By the time we arrived, they were able to make a ~15 by 25 foot hole in ten minutes.  They would cut the ice, and then use poles to push down one end.  On the other end, more poles were used to push the big chunk down and under the surrounding ice.  The only problem was, the whales were too scared to leave the safety of their own reliable hole, and they weren’t moving down the path they were cutting.

Since gray whales really aren’t very good at being in ice, Dave and I assumed they were probably extremely stressed and shaken.  We suggested that they cut the holes much closer to the whales, which thankfully worked.  The whales became so accustomed to moving from hole to hole, that eventually, a whale would pop up as soon as the newly-cut piece of ice was moved.   They actually started traveling back and forth down their line of holes, maybe enjoying a little more freedom.

(photo: Jim Harvey)

This must have taken quite a bit of time to cut so many holes toward the edge of the ice.  How long were you there, and where did you stay, since Barrow was packed?

Dave and I were on site for about two weeks, and we stayed for the rest of the rescue operation.  Our accommodations were actually sort of a funny story.  Because of the lack of lodging, we were housed at the Naval Arctic Research Laboratory (NARL).  Due to the Cold War, NARL had gained importance because of its proximity to Russia.  It was a pretty top-secret place, and here we were, a couple of scientists.  Well, NARL was quite a ways out of Barrow, so the only food available was from the commissary, served on a strict schedule.  Somehow, our schedules seemed to be the exact opposite, and we were constantly missing all meals.  As luck would have it, we discovered a Mexican restaurant in Barrow that had a limo that would come and pick you up.  Dave and I spent quite a few trips riding back and forth in a limo so we could actually eat.

You mentioned tension from the Cold War, but it was a Russian icebreaker that eventually helped the whales out of the ice.  How did that work out?

You’re right, there was a lot of tension from the Cold War, but the Russians did come to the rescue.  The reason that we needed an icebreaker was because an ice ridge was built up against the shore, and it was far too thick to cut through.  They actually considered blowing it up at one time, and took an ice expert from NOAA out to the ridge to take a look.  They dropped him off by helicopter, and planned to be back in five minutes.  On their way back, they found that he was being stalked by a polar bear, though he had no idea.  Thankfully, they were able to get him back into the helicopter before he became a meal.  In the end, they decided the icebreaker would be the best bet.

A Russian icebreaker was in the Beaufort Sea, and they were talked into helping, although there was concern because it would bring them so close to NARL and our coastline.  The Russian captain and a few other crew actually ended up visiting by helicopter, and took the chance to take pictures of the scene, and shared their traditions by handing out gifts to those of us there.  I can’t remember what I was given, but I remember I wasn’t able to give anything in return, because the only article I had was my jacket, and I never could have survived without it in the 10 to 20 degree below zero temperatures.

(photo: Jim Harvey)

So was the icebreaker able to reach the whales and lead them to open water?

Yes, the icebreaker was actually able to plow all the way through, up to the last hole that was carved by the research team.   The ship then backed out, and it created a channel that the whales were able to follow.  I wasn’t able to watch from the helicopters during this part of the rescue, but there was word that people had seen the whales in open water, and others reported seeing a pair of gray whales off of the California coast.  We never ended up tagging the whales because we didn’t want to further stress them out, so we couldn’t say for sure where they ended up.  But, I feel confident we gave them a good fighting chance.

(photo: Jim Harvey)

What do you think of a movie being made? 

I plan to go see the film, and I’m curious to see how the story is told.  I don’t think there’s any character in it that portrays the role I played.  But hopefully now, my students wont think I’m spinning a yarn when I tell them about my part in the rescue.

(photo: Jim Harvey)

New Semester, New Wave!

September 20, 2011

The new Wave from Friends of Moss Landing Marine Labs is here!  Inside are stories on the Drop-In Blog, PSRC’s Spot a Basking Shark Project, and the new Ichthyology faculty Dr. Scott Hamilton.  To download a copy, click the front-page image above, or click here.

If you found out about the Drop-In from your copy of the Wave and are visiting our blog for the first time, welcome!  We hope you’ll enjoy reading about our adventures.  Click on the bullets below to find the stories written about in the Wave:

The Drop-In makes list of 100 Best Ocean Blogs

January 21, 2011

photo: E. Loury

We’re famous!  Well, in certain circles anyway.  The folks at World’s Best 100 listed the Drop-In in their category “100 Best Blogs for Studying the Ocean.” We’re #16, and while no rhyme or reason is given for the rankings, that’s not too shabby, I’d say…

Their take on the Drop-In:

Follow along with the graduate students at Moss Landing Marine Laboratories for some excellent (and homework-free!) lessons in marine science.”

Check out the list – maybe 100 isn’t being so selective, but we’re in good company with some great marine bloggers.   That totally merits a flashy MLML sunset.

Scuba Talk Now, Pirate’s Radio (KNRY 1240) features MLML Student Amanda Kahn

August 14, 2010

Get to bed early tonight because Sunday morning at 8:00, MLML student Amanda Kahn will be interviewed on Scuba Talk Now, Pirate’s Radio!  The interview will air on KNRY AM 1240, and will feature questions about some of the things that Amanda has learned about for her research.  Come find out what it’s like doing deep-sea research, what is so great about  scientific diving, and learn a ton about the animals that Amanda studies: marine sponges!  Check out the posts below for some background info, then listen in and be ready to ask more questions!

Animal, celebrity, or cake?

Do sponges have the nerve to eat?

Scuba Talk Now, Pirate's Radio

Scuba Talk Now (Station KNRY, AM 1240) will feature MLML student Amanda Kahn this Sunday at 8:00 AM.

2010 Open House Puppet Show: Dora the Sperm Whale Explorer’s Deep-Sea Adventure

August 10, 2010
Amanda Kahn

Amanda Kahn

by Amanda Kahn, Invertebrate Zoology and Molecular Ecology Lab

In April, MLML opened its doors to the public and we spent the weekend showcasing our research and teaching people about marine science.  We did this in a variety of ways: lectures, seminars, interactive exhibits, touch tanks, science as art, and even in puppet form!  For those of you who missed the show, you can still learn about Dora the Sperm Whale’s exploration of the deep sea, discover different deep-sea habitats, and find out all about the many ways that animals eat!  Check out the two-part video below, and be sure to catch our hit songs “Chemoautotrophy” and “Vertical Migration”!

Part 1:

Part 2:

Got any questions about the animals or habitats you saw in the show?  Comment below or email and we’ll tell you all about them!

Credits

Puppeteering, stage design, sound setup, logistics:

Jeremiah Brower, Billy Cochran, Marilyn Cruickshank, May Deluna-Schneider, Amanda Kahn, Stephanie Kennedy, Deasy Lontoh, Erin Loury, Ben Perlman, Jasmine Ruvalcaba, Sonya Sankaran

Video editing by Wavelength Films


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