Palmer Station – All about that baseline:

The Curiosity of Giants!

By: Logan Pallin

As you can see Erin’s previous post, the whales have finally showed up. It has been a great last week for us on the water. We went back out to the area where we found all the whales the day before, and low and behold there were no whales around. We found roughly five more whales in the area and were greeted graciously by a young juvenile that put on an amazing displays of energetic surface behaviors.

The whale began by rapidly ascending to the surface in an attempt to thrash its fluke on the surface water. This is a behavior we classify as a peduncle throw. We proceeded several times to stay parallel with the individual in order to collect a biopsy sample, but every time we approached the whale would turn into us and proceed to swim under the boat. At one point and time, the individual proceeded to lie on its back at the surface, thrashing its fluke, allowing us to photograph the individual’s belly. From these photos, and with the help of some colleagues back in North Carolina, we were able to come to the conclusion that this was in fact a young female.

For several more minutes this whale danced at the surface around our boat, often times raising her large pectoral fins out of the water and bringing them down in a swift slap across the water’s surface. Lastly, she swam just within arms length of the stern of our zodiac and then proceeded to roll on her back and lay under us, showing us the extent of her white belly, pectoral fins, and fluke. We finally then collected our sample and drove off, leaving this curious and playful little humpback to engage her curiosity among the other wonders of this Antarctic environment.

This encounter, even when at times had Erin and I a bit nervous, really allowed us to experience the curiosity of these animals. Moreover, we witnessed the extreme finesse, care, and awareness that these animals have over their huge extremities. Never once was the boat bumped or jostled. These are in fact amazingly intelligent and beautiful creatures.

The Laurence M. Gould was back this week. It had spent the last month traveling the northern part of the peninsula with a group of soil scientists who are trying to understand the biodiversity of Antarctic soil and the ecological relationships between those organisms. Most of the station science teams left this morning and are heading back north to Punta Arenas to go back to normal civilization that lies State Side. We still have 22 days here at Station. Still lots of time to collect lots of samples and get some more great data on the whales in the area!

Humpback whale laying on back thrashing fluke. You can see the belly!

Waving high! Humpback whale pectoral fin.

Lichen what we’re seeing

Erin Pickett @ Palmer Station

Summer has been moving right along here at Palmer Station. While Logan and I haven’t been observing high numbers of whales, we have had the opportunity to see some awesome wildlife and beautiful scenery lately.

While we focus on top predators, there are many other scientists working here at Palmer, all of whom share a focus on studying how climate change is affecting the marine and terrestrial ecosystems in this region. One science group is studying microorganisms (and their role in O2/CO2 cycles), another focuses on phytoplankton, one is studying an insect (the Antarctic midge), and another is studying the chemical ecology of marine macroalgae and invertebrates.

I am slowly learning about all of these projects. For example, one of the ‘buggers’ walked by our lab yesterday carrying what looked like a glass of ice water and I said “Hey! What are you doing? Are you killing your bugs?” He patiently explained that the Antarctic midge prefers freezing temperatures. Ok, that makes sense. By the way, the Antarctic midge is 2-6mm long and the largest land animal on the Antarctic continent.

We have science talks one night a week at Palmer. Last week after learning about the chemical ecology of the local marine invertebrates and algae, I was nearly convinced to jump ship from team whale and join team macroalgae. A big part of this might be me wanting to go diving, but still. Chuck Amsler (from UAB) gave a great talk about the research that the divers will be doing over the next month.

All in all, we haven’t seen many whales in the past two weeks, but we have found many other plants and animals to keep us entertained and asking questions.

You can learn more about the buggers project here: http://aflyonthepole.com/ and more about the Palmer LTER research components/labs here: http://pal.lternet.edu/research

This slideshow requires JavaScript.

Meet the Southern Giant Petrel #seabirdsaturday

By: Erin Pickett

I have overheard about three different people today call the weather “gross”, which is understanding given the winds around here are gusting over 40 knots and it’s been raining all day, but I’m kind of enjoying it.

A plot of the wind speed with a red line indicating our safe boating limit

Logan starting an Endocrinology lesson since we can’t work outside today

Due to safety concerns, we don’t take our Zodiac boats out if the winds are higher than 20 knots, so Logan and I have been occupying ourselves with indoor tasks today. I thought I’d take the time to share a few photos with you. Yesterday while Logan and I were surveying for whales we came across a group of giant petrels sitting on the water along with a few hovering Wilson’s storm petrels. Upon closer inspection we found the petrels scavenging on a fresh penguin carcass. Leopard seal leftovers perhaps?

Southern giant petrels are very cool! They range throughout the entire southern ocean and breed on many sub Antarctic islands and along the Antarctic Peninsula. They are large birds, with a wingspan of 150-210 centimeters (over 6 feet!). The scientific name of the giant petrel is Macronectes giganteus, which comes from Latin and Greek root words meaning “large”, “swimmer”, and “gigantic”. Another fun fact- the name Petrel refers to the story of St. Peter walking on water. Petrels have webbed feet that allow them to run on the surface of the water when they take off (they also make unique tracks through the snow).

The seabird team here at Palmer is monitoring the local population of giant petrels that are currently raising their chicks on nearby Humble Island. While they are raising chicks, mating pairs take turns guarding their nest and making foraging trips to obtain food for themselves and their young. Giant petrels are scavengers and will feed on carrion (e.g. dead and decaying elephant seals) and they are also predators that will kill live birds by taking them off the surface of the water.

Check out the photos to see what I’m talking about!

The finale: the Rosenthal Islands

Erin Pickett-

The Palmer LTER 2016 research cruise has come to an end and I am back at Palmer Station. In addition to a fantastic espresso machine, Palmer Station also comes with the added benefit of more internet bandwidth and a phone to call home. I thought while the memories are still fresh and my friends and family are beginning to ask, I’d better write down a few of my favorite field adventure moments.

Thinking back, there are a few common themes that all of these favorite moments have in common, and they are; high winds and snow stinging my face, dramatic cliff faces and rocky islands, shoes covered in penguin guano, sightings of whale spouts, and seabirds I have never seen before.

Overall, there were far fewer whales seen on this cruise than there have been in the past. Luckily, I was able to keep busy anyway, because when we weren’t finding whales I was assisting the seabird team in their pursuit of penguins. Toward the end of the cruise most of the science projects happening on the ship were wrapping up and the birders and whalers were given more freedom to direct the show. This meant we were able to work with the captain of the ship to chart courses to areas where we thought we might find whales and to rarely visited islands with colonies of Adelie, gentoo, and chinstrap penguins.

The first group of islands we visited were just east of Prospect point, called the fish islands. We used a handheld GPS and hand-drawn maps to navigate around a group of small rocky islands collectively named the minnows. Carrie and Darren (the “birders”) and I hopped on and off our skiff to count the chicks and adult penguins on each island. Meanwhile, our boat driver was keeping an eye on the wind and the icebergs surrounding us so that we wouldn’t find ourselves trapped in the bay if the sea ice became packed in by strengthening winds. Our ride back to the ship that day was quite wet due to a lot of wind chop, and we spent the rest of the afternoon drying our gear out and warming up so that we would be ready to return back to the minnows that evening to collect Adelie penguin diet samples.

Prospect point is colored in red in the center of the peninsula, with Anvers Island and the Gerlache straight to the North. Image credit: Giovanni Fattori (https://commons.wikimedia.org/w/index.php?curid=11939457)

Diet sampling is a critical part of the birders work during the LTER cruise. Collecting diet samples from Adelie penguins over a long time period and over large geographical distances allows us to monitor how changes in sea ice along the peninsula are impacting top predators and their prey. We had a successful trip back to the minnows that evening and collected fresh diet samples from five Adelie penguins that had just returned home from foraging trips.

Two days later we arrived at the Rosenthal islands, which are located on the west side Anvers Island. Our goal at the Rosenthal’s was to census the local penguin colonies. The Rosenthal’s were unlike anywhere else I have been yet, with jagged islands set dramatically near the base of a large glacier and waves crashing over nearby shoals and icebergs. Southern giant petrels and skuas glided over our heads while groups of penguins porpoised around us. At the first island we came to we got to see a king penguin, a rare sighting in this area.

Luckily there were six of us to count the thousands of Adelie, gentoo and chinstrap penguins that were scattered in colonies all over the islands, but it still took most of the day to complete our counts. After one last trip through the Gerlache straight at sunset, we arrived back at Palmer Station.

I hate to admit that I didn’t have my camera with me at Prospect point and at the Rosenthal’s, so until I get a few from the rest of the field team here are a few from the last week of the cruise…

Storm Petrel Central: a gathering of birds above a whale fall?

Guest blog entry by: Dr. Doug Nowacek-Duke University (Co PI on Palmer LTER marine mammal project)

We spend a lot of time on the water, which we really enjoy because we get to see not only the humpback and minke whales we are studying but also all the other wildlife (penguins, seals, flying birds) and this amazing environment around Palmer. Just in the last two days (while we haven’t seen any whales!) we have seen this area in several different moods – from bright sunshine to cloudy with very cool lighting to a veritable blizzard! So, while we are doing our surveys for whales and/or krill, we are always on the lookout for animals, ice, or whatever. Sometimes when you’re paying attention, you see things that you may otherwise overlook, and while some of the things you notice turn out to be just a passing bird or seal, sometimes what you notice turns out to be amazing, cool, and interesting.

Each and every time Logan and I would pass the corner of Cormorant Island in the southeast corner of the boating area (see the Palmer Station Area map), we would see a small to medium sized grouping of Wilson’s storm petrels, sometimes joined by a few southern giant petrels (GPs). The first time or two I noticed the gathering of petrels, I didn’t think much of it, but then I realized that every time we passed that location (which has been often as we search for these bloody whales!), the birds were there. The storm petrels, as they do, would be flitting about and ‘dancing’ on the surface of the water collecting food. Well, we noticed this phenomenon enough times that we thought there must be something to it, but what could be attracting the petrels to the same spot all the time? Yesterday we did some echosounder surveys for krill in the area, and we decided to head to ‘storm petrel central’, and if the birds were again in that spot, we would run the echosounders over the area to see if there was a big krill patch. When we arrived, the birds were there as always, probably 20 storm petrels and 4-5 GPs. We approached slowly with the echosounders on and planned to do a couple loops around the spot; the GPs took off, but the storm petrels hardly knew we were there as they kept dancing around on the surface, presumably grabbing food. Well, the echosounders showed nothing in the water column…but, as we glided over the area we noticed two things (in addition to the birds!) at the surface. First, we saw small oil droplets coming to and breaking at the surface and quickly dissipating. Second, we smelled a smell that relatively few people in the world have smelled…dead whale!! We stayed for several minutes, while Logan took ~200 photos! And we continued to see little oil droplets and the storm petrels going nuts, with some of them actually diving beneath the surface, which is rare for them, I believe. The birds would change locations a bit and dance along the surface 30-40 feet from what seemed to be the center of the action, but the activity was very much centrally located to our spot and our presence did not deter them in the least.

Could there be a dead whale at the bottom here? And as it decomposes releasing little tasty bits for the birds? We went back today with the Station doctor after he joined us for some more krill surveys. The birds were most certainly there, maybe even more storm petrels today, and we actually saw some very small white chunks come near the surface and get snatched up by the little ‘butterflies of the sea’, as they are called in French. We also saw a good bit more oil hit the surface, and that unmistakable smell was in full force!!

Storm petrel central has been one of those cool experiences we didn’t expect to have, but will be an indelible memory of our work this year. And, who knows, if the Station gets an ROV soon, maybe someone could go have a look at our suspected dead whale!

Wilson’s storm petrel dancing on water’s surface

Wilson’s storm petrel spreading its wings for balance on water

Wilson’s storm petrel diving after presumed whale oil

Weather has us at a standstill

By Logan:

The last three days have been pretty tough. We had not seen any whales since the 20^th. The weather has been pretty unforgiving, and the winds have pushed a lot of ice in the inlet making it hard to get the zodiacs away from the pier. The weather finally let up today and we were fortunate to travel within the extended boating limits with the bird group to dream island and Biscoe bay.

Light shines through the thin parts of the ice making the blueish glow

A large tabular iceberg sits about 2 miles away

A large tabular iceberg we estimated to be 10 stories tall

Brash ice that blew into the harbor making it hard to get out in the zodiacs

We sampled three whales today, but probably seen some where around half a dozen in total. The many icebergs within the boating limits make it hard to follow and see the whales at distance. We have collected 13 biopsy samples thus far. So far it has been a pretty slow year. We also had two Adélie penguins jump into our boat today while we were sampling.

We photographed one whale, presumed female because it was accompanied by a juvenile, which had intense scarring on the left side near the dorsal. We are unsure what may have caused it, but it looks as if it is from a potential fishery line interaction. We have yet to have a re-sight within the palmer boating limits, which is a sign that the whales are moving in and out of the area quite rapidly. This is good for us, as it means we will get a sample from a wider range of individuals.

Humpback whale with large scar on left anterior side

The weather is supposed to be good for the next couple day so hopefully we will be able to get some more echo sounder surveys in and look for krill biomass, and of course get some more whale samples. We were able to see some large mountains today as the sky began to open up.

Will post again soon!!

Whales! Whales! Whales! Whales! Whales!

By: Logan Pallin

So it has been an exciting few days here at Palmer Station. We happened upon our first humpback whale while out calibrating the echo sounders (fancy fish finders), which are an adventure of their own. Doug and I spend most of our working days here at Palmer Station floating around whales in our trusty Zodiac. Most of the time it is a comfortable quaint little office, with space for all of our equipment and, importantly for the work we do, a very good platform to approach whales.

Cruising in the Zodiac. I am in the front of the zodiac ready to collect a biopsy.

Cruising in the zodiac. There is a humpback whale in between us and JD, the photographer.

We work in quite hostile environments, so safety is paramount. We have survival equipment on board and there are caches with tents and stoves on some of the islands in our study area, just in case the weather comes up quickly. And it really can come up quickly. One moment it’s calm and pleasant and the next we are in the middle of a blizzard. We keep in touch with the Station by calling in our position every 30 minutes on the VHF radio.

We were out sampling on Sunday when we happened to come across a mom and her calf. Then out of nowhere, a large ominous dorsal fin came up just to our starboard side. It was huge!! It was a large bull killer whale (Orca). Next thing we know we are in a group of 7 killer whales. It was quite spectacular.

We have 6 biopsies so far. We were fortunate to go outside the boating limits today to Dream Island. We were accompanied by the birder group who was counting skua chicks and eggs on Dream. We saw three more humpbacks today and a minke whale, that disappeared after about 10 seconds. One of the humpbacks, whom I named the fat pig, was surface lunge feeding. It was amazing to witness. This particular whale would dive and releasing a net of bubbles to concentrate its prey, we call this phenomena bubble net feeding. The animal would then lunge up through the center of the ring of bubbles, opening its mouth and filling his large bucal cavity with water and krill. It would then roll over on its right side, lazily like and slosh its pectoral and fluke fins around for a while. This series of actions was repeated several times.

There is still a lot of ice around which makes getting in and out of the boat ramp quite difficult. Also makes sighting whales quite challenging as well. The crabeater seals are quite pleased with the amount of ice however. Doug and I will be going back out tomorrow to finish the echo sounder calibration so we can start prey mapping (looking for krill).

Will post again soon!!

Torgersen Island Adelie Penguins

Logan: Today I had the pleasure of visiting the Torgersen Island Adelie Penguin colony. We can see the colony from station at a distance. We circled the island in the zodiac and I admired the tall peaks of jagged rock that these penguins somehow managed to traverse to get to the nesting sites. Unfortunately we had to approach the loading zone down wind of the colony, an area you do not want to be if you have a weak stomach. Immediately my stomach began to churn as I smelled the distasteful odor of Adelie guano that lined the rocky terrain in a pink shear.

We landed on the island and I quickly began to traverse the rock terrain to the peak of the island near the colony nesting sites. We were instructed earlier in the day that the chicks had already hatched and that we were to remain at distance as to not distract the parents with chicks. The Brown Skua, a large predatory bird, takes advantage of unprotected chicks, carrying them away from the colony to feed on the tiny brown fluff balls. I managed to find a good spot to sit on the rocks and turn on my GoPro and just sit and observe the activities of these beautiful birds. The noise that this colony could produce was outstanding. I watched these birds interact with each other in many different ways. Some would raise their necks high into the air as a sign of what I believed to be courtship, while others were just laid on the ground trying to stay cool. This particular colony is in decline. These penguins are an ice dependent species, and as the climate in this area continues to warm, this colony will likely disappear.

Erin, Ari, and Doug are still out on the LMG trying to place our suction cup tags on nearby humpback whales. Have not heard from them yet, but hopefully I get a call that a tag has been placed. That is all for today!!!