I realized that I was doing you all a great disservice by not featuring the most important creatures of all, the producers. Producers are organisms that take the radiant energy from the sun and transform it into food (chemical) energy. These little bitties form the first link in a food web or chain. They are the link between the physical and the biological. They are the photosynthesizers.
It’s easy to feature the cute seal pup, or majestic bald eagle, but phytoplankton? Sea algae? Where’s the glamour in that? Come closer and have a look at the backbone of the ecosystem, come meet the microscopic creatures of the most productive marine ecosystem on Earth, the Bering Sea!
It actually starts with the rich nutrients that are circulated in complex cycles through the icy sea.
The first indicator that something is going on is the ICE. This isn’t dirt on this monster ice cube. It’s ice algae, one of the main producers in the Bering Sea. There are many different kinds of Diatoms that live here, use the rich nutrients dissolved in the sea and transform the energy of the sun into food.
This ice isn’t dirty. It’s colonized by ice algae, one of the backbones for the Bering Sea Ecosystem.
Enter the copepods, krill, bigger zooplankton that chow down on these little ‘plants of the sea’ and in doing so transfer energy from the phytoplankton into them. Next it’s a free for all with something eating something else, a living luau that bubbles and brews and transforms and transfers. From creature to creature to creature and then one more. Nothing is wasted, everything is a part of and needed.
Enter the copepods.
And suddenly, it’s over, but not really, it’s just reformed and recycled. The body decomposes, enters the nutrient cycles, and becomes part of the growing phytoplankton bloom ready to explode as soon as the ice melts.
What’s the ground floor of this uber productive sea? Say, ‘Hello Sunshine’
Today a beluga whale was spotted from the helicopter. The whale was swimming in a small open area in the middle of an ice flow. This open water is called a ‘polynya.’ Read on to learn more about these beautiful whales. In the next few days, I will have the chance to add photos from Belugas we see.
What is really cool about beluga whales?
Beluga whales (also called white whales) are known to strand on mud flats without apparent harm. They are able to wait for the next high tide to swim away.
Adult beluga whales have been observed carrying odd objects such as planks, buoys, and even caribou skeletons during calving seasons. It is believed that if a female beluga loses her newborn, she might interact with these objects as a calf surrogate.
Beluga whales have a flexible neck due to cervical vertebrae (backbone) that are not fused, as in other cetaceans. This allows them to move their head up, down, and to the side. Their bulbous forehead, called a melon, is also very flexible allowing them to make many different facial expressions. Movement of the melon is associated with the production of sounds.
Beluga whales are known as the “canaries of the sea” because they produce a vast repertoire of sounds including whistles, squeals, moos, chirps, and clicks. These sounds are used for communication within their social groups and also use to locate prey through echolocation.
What are beluga whales like?
The name beluga comes from the Russian word “bielo” meaning white. Beluga whales live, hunt, and migrate together in pods of a few, to hundreds of whales. Beluga whales are extremely social. In the summer, they are often found near river mouths, and sometimes even venture up river (as far as 621.4 miles (1000 kilometers) in the Yukon River). However, recent satellite tagging research has shown that beluga whales also spend time offshore, diving to depths of at least 1,148 feet (350 meters) where they are likely feeding on deepwater prey.
Where do beluga whales live?
Beluga whales inhabit the Arctic and subarctic regions of Russia, Greenland, and North America. Some populations are strongly migratory, moving north in the spring and south in the fall as the ice forms in the Arctic. As the ice breaks up in the spring, the whales move north again feeding near river mouths and offshore. There are a few isolated populations that do not migrate in the spring, including those in the Cook Inlet, Alaska and the St. Lawrence estuary in Canada.
How many beluga whales are there?
Beluga whales are not considered an endangered species however some stocks are faring better than others. NMML has done extensive work with some stocks of beluga whales including the Beaufort Sea, Eastern Chukchi Sea, Eastern Bering Sea, Bristol Bay and Cook Inlet stocks. You can read more about these stocks in the NMFS Alaska and Atlantic stock assessment reports.
How can I identify a beluga whale?
Belugas are born dark gray. They turn white as they mature sometimes taking 3-8 years to reach their adult coloration. Adult beluga whales can grow up to 16 feet (4.9 meters) long. Females are generally smaller than males. Belugas have large melons and very short snouts. Interestingly enough, unlike other cetaceans, beluga whales also have the ability to move their head independent of their body.
Beluga whales do not have dorsal fins. Dorsal fins would be a major hindrance during the winter when they live in the loose pack ice of the Arctic. A dorsal fin would cause extra heat loss when Arctic animals, such as belugas, need to conserve heat. They do have a tough dorsal ridge which, along with their head, can be used to break ice for breathing holes.
How well can a beluga whale see or hear?
Beluga whales have well-developed, acute senses. They can hear a vast range of sounds and have excellent vision in and out of water. Belugas may have some sense of taste, but they do not have the brain receptors or olfactory structures for the sense of smell.
Belugas often hang in pods. This huge pod was seen on Saturday April 21 by the Ice Seal team as they were recording a transect.
What do beluga whales eat?
Beluga whales are diverse eaters, with more than 100 prey species identified including salmon, capelin, herring, shrimp, Arctic cod, flounder, and even crab. They feed in both open water (pelagic) or on the bottom (benthic) and in shallow and deepwater habitats.
How do beluga whales have their young?
Female beluga whales are old enough to reproduce at 4-7 years of age and males at 7-9 years. Beluga whales mate in the spring, the exact time varying geographically. The following year, after a 14-15 month gestation period, females give birth to single calves (and on a rare occasion twins) that are about 5 feet (1.5 meters) long. Calves nurse for at least 12-18 months, but may continue to nurse for another year after beginning to eat solid food.
How long do beluga whales live? How do they die?
Beluga whales are thought to live for 35-50 years. Beluga whales are prey to killer whales and polar bears. They can also die when entrapped by ice.
Some beluga whale populations have been greatly reduced as a result of hunting practices. Historically, large numbers of beluga whales were hunted commercially. Today only subsistence hunting is allowed in U.S. waters. Beluga whales’ affinity for shallow coastal waters puts them at risk as humans alter coastlines and estuaries with pollution, dams, and off-shore petroleum exploration and extraction. Canada’s St. Lawrence Estuary is an example where industrial pollution has caused high beluga whale mortality.
This material was taken word for word from the following website. Please give them all the credit in the world should you wish to use this information in a report.
On the hunt
Polar Bear: Ursus maritimus
On board the Healy, there is one helicopter that is being used by the folks from the National Marine Mammal Laboratory to do population studies. Today they went out for two runs. In the first run, the team saw a Polar Bear eating walrus. The photos for polar bear will be added as soon as they become available. If you’d like to learn more about them, read on.
Polar bears live year round near arctic waters hunting seal and other animals, rarely coming on land except on islands and rocky points. In winter they hunt along the Arctic shelves looking for tasty seals, fish, and even humans! Their white coats provide camouflage in the ice and snow which make them almost invisible as they stalk their prey.
In winter, when they are far from land they search for breathing holes made by seals. When the seal comes up for air, the polar bear will kill it and flip it out of the water with a single blow of its great clawed paw! Polar bears are very dangerous, and grow to a huge size and weigh as much as small automobile (1000 pounds). They have longer legs than other bears and large furry feet. These big feet help to distribute their weight as they walk on thin ice in the arctic waters. Polar bears are strong swimmers and can stay submerged for two minutes at a time. Their fur is made of hollow hairs which trap air and help to insulate them in the frigid waters.
After the kill
In November polar bears retire to dens dug out of the snow or permafrost. The females remain until the spring when they emerge with one or two cubs who stay with them for the next year and a half. The males spend a shorter time in the dens and may be seen out and about at any time of the year.
19th Century Naturalist Edward Nelson Recounts:
“The Eskimo of Saint Lawrence Island and the American coast are well supplied with firearms which they use when bear-hunting. In winter, north of the straits, the bears often become thin and very savage from lack of food.
A number of Eskimo on the Alaskan coast show frightful scars obtained in contests with them in winter. One man, who came on board the Corwin, had the entire skin and flesh torn from one side of his head and face including the eye and ear, yet had escaped and recovered. One incident was related to me which occurred near Point Hope during the winter of 1880-’81. Men went out from Point Hope during one of the long winter nights to attend to their seal nets, which were set through holes in the ice. While at work near each other, one of the men heard a bear approaching over the frosty snow, and having no weapon but a small knife, and the bear being between him and the shore, he threw himself upon his back on the ice and waited. The bear came up and for a few moments smelled about the man from head to foot, and finally pressed his cold nose against the man’s lips and nose and sniffed several times; each time the terrified Eskimo held his breath until, as he afterwards said, his lungs nearly burst. The bear suddenly heard the other man at work, and listening for a moment he started towards him at a gallop, while the man he left sprang to his feet and ran for his life for the village and reached it safely. At midday, when the sun had risen a little above the horizon, a large party went out to the spot and found the bear finishing his feast upon the other hunter and soon dispatched him. Cases similar to this occur occasionally all along the coast where the bear is found in winter.”
This material was copied and pasted from the following website. Please give them all the credit in the world should you use it in a report or in other ways. http://www.mnh.si.edu/arctic/html/polar_bear.html
So what’s on board a scientific research vessel and Coast Guard Icebreaker? Come take a tour with Kolehe, my naughty monkey friend.
Walk the gang plank
That’s how you get on the ship. You are looking at the PORT side of the ship. It faces the port. The other side, starboard, doesn’t. The gangplank enters at the 01 level. My stateroom (where I sleep) is located one floor above. You need to take very steep steps to get from one level to the next. Going up is easier than going down.
Water Fountain
You get REALLY thirsty walking up and down steps, so there are lots of water fountains and the water is nice and cold.
My State Room: I share a nice room with a nice scientist, Ana Ajuilar-Islas. Scientists have to work for 12 hour shifts, sometimes even more. They sleep when they can. That means I need to be respectful of her. Look I’ve made myself right at home. My desk looks just like my teacher desk on Maui!
My Desk
Science Conference Room: Just down the hall from me is the science conference room. That’s where many of the scientist go to use the public computers and talk story. Attached to it is the TV video entertainment area. There is a huge TV screen where everyone gathers to watch movies.
Opening up Doors: I have the hardest time opening up the water tight doors that lead to and from different areas of the ship. You have to crank them all the way open and then all the way closed. I am developing my arm muscles for sure!
Good Morale: The crew has a group of people who work on keeping the attitude of the ship very positive. They play bingo on some nights, have fun food entrees and on Saturday nights…
Movie Night
A movie in the helicopter hanger with free popcorn and soda! This past week it was a James Bond Movie, ‘Casino Royale.’
More Movies
The Bridge I love to spend time on the bridge. That’s where you go if you want to see any wildlife. I spend as much time as I can up there because it is so interesting for me. I also get to take ice observations for the scientists, valuable data that they will use to help analyze the data they are getting right now.
The captain hangs out on the bridge.
I have to keep Kolohe close to me. He is always getting into trouble!
This is Tim Sullivan. He’s the ship’s navigator which is a really important job. The ship doesn’t go anywhere with his knowing about it.
All this touring has made Kolohe hungry. He’s stopping by the galley to enjoy some snacks to renew his energy.
The galley is five ladders down from the bridge.
Do you think he will burn off all those candy calories walking back up to the bridge?
Time for Bed… After a long hard day of experiments and data generation, we are ready for sleep. Did you know the sun sets at around 10:30 at night here? That’s right, it stays light very late. But that doesn’t stop us from getting a good night’s sleep! Hope you enjoyed this brief tour of the boat. Make sure you email any questions you might have to me!
On Monday, April 9: we loaded the ship with many bags and boxes of gear. Everyone moved into their rooms, unpacked and then headed for the science lab. In order to do science experiments, the scientists had to set up their labs.
The food is yummy onboard the Healy. There are always many fresh fruits, vegetables, beverages and snacks in the galley. Some of the food I have eaten includes fresh mixed fruit, creamy vegetable soup, and lo mein with vegetables. The salsa is to die for. There are fresh baked pies, coconut macaroons, brownies and ice cream.
Tuesday, April 10: we shipped out of Dutch Harbor and steered north. The water has been amazingly calm. We have seen many gulls and some smaller waterfowl. One of the research groups is counting and identifying our fine-feathered friends. Since they don’t have very much equipment besides binoculars, they were busy from the first day out, collecting data.
Wednesday, April 11: was the first big push for samples from the rosette. Because so many teams need seawater in order to do their experiments, there are many sampling stops. The water is below freezing, but it is still liquid because salt is dissolved. Many of the scientists are using the water samples to test for the concentration of various nutrients and plankton.
Why nutrients? They are one very important limiting factor in the growth of the producers. Yes, without sunshine there’s no life, but algae and other phytoplankton need fertilizers to grow like crazy. Measuring the concentration of these nutrients allow the scientists to check on the health of the ecosystem and make predictions about what might happen to the delicate balance in the Bering Sea.
Thursday, April 12: was a very interesting day because the Ice Seal Team, from the National Marine Mammal Laboratory in Seattle, did some practice runs using the zodiacs. The Healy had never launched zodiacs of this size before so it was practice for the Coast Guard as well. The scientists in the lab were in full experiment mode, working on perfecting their technique or tweaking their new setup.
Friday, April 13: started our rotations through the science labs. We arranged our rotations around the theme of ‘Energy and Nutrient Transfer Through the Ecosystem.’ Dr. Cal Mordy was my first scientist mentor. He is looking at concentration of nutrients and oxygen in seawater. Robyn Staup, the other onboard teacher, was connected with the physical oceanographers, Drs. Nancy and David Kachel and Dr. Ned Cokelet. She fired tubes and learned many different techniques they are using to test the water of the Bering Sea.
The helicopter did a launch from the flight deck on Friday afternoon. The NMML (NOAA) is doing population counts for ice seals in the sea. Much work has to go into creating a flight plan. Time is made to communicate concerns. It was all done right, thanks to the careful attention of Ice Seal Team Leader Mike Cameron.
Today we saw our first ice.
Saturday, April 14: was a trial day for both Robyn and I as we are training for being the Ice Observers for the cruise. We had training in ice observation yesterday, but today we were on our own. Every two hours we look at the ice and interpret what kind and how much. We get help from the Coast Guard as they tell us the visibility in nautical miles and track our latitude and longitude too. We take ice observations as long as the sun is shining in daylight. After the scientists have completed their investigations in May, our ice observations will provide information about how much ice was there when they collected our data. The helicopter did another transect and observed ice seals and walrus.
Sunday, April 15: a great day to submit ice observations and look for walrus and ice seals. The animals are becoming more common and the birds are becoming scarce. Why? There is hardly any open water anymore, we are surrounded by ice.
The Ice Seals had another transect using the helicopter.
Robyn and I are working on the pictures we need for our first Live from IPY event. Our theme will be life on board a scientific research vessel that is also a Coast Guard Icebreaker.We believe it will be at 10:30 Hawaii time, 12:30 Alaska time, 1:30 Seattle time, 2:30 Mountain time, 3:30 Central time, 4:30 Eastern time. We expect to have representatives from both the Coast Guard and our scientists present.
Yes! I am an official ice observer, a real member of the scientific team. My job is to tag team with Robyn Staup, my fellow PolarTREC teacher, to record the conditions of the ice every two hours.
The Healy breaks a path through the ice. But what KIND of ice?
It’s not as easy as it sounds. So every two hours one of us takes flights of steps up to the bridge. We are set-up in a corner. Our station is made up of a computer, camera, pencil, piece of paper and the guide for Official Ice Observers.
I get help and advise from my friends up on the bridge.
I try to time my observations to be at the same time that the ship has stopped to take some samples. I need to take three pictures there, all in certain places, upload them to a website form, and interpret certain environmental conditions.
This satellite image of ice on the Bering Sea is very accurate.
How much ice? What kind of ice? How cloudy is the sky? How cold is it? Is there ice algae? How much? What is the visibility?
Is this cake ice or pancake ice?
After that’s all recorded in the form, I have to stop the observation so that the observation has a start and end time. I reread what I wrote, check the links to the photos and upload the form. Then I double check it again by going out of the website and back into it and rechecking the data and photos. At first it took us over an hour. Now we have it down to about 15 minutes.
Kolohe gives me advise sometimes. But he gets into so much trouble I have to keep him close to me when I am on the bridge.
The hardest part is getting outside to take a picture of the ice horizon. On one side of the boat, there is a big gust of wind that takes your breath away, it’s that cold. I don’t stand around, I just take the picture and get back into the bridge.
Spotted seals are found by ridges and waffles on the ice. They are often hiding. Can you spot the spotted seal?
Why are we doing this? All the scientists need to see how abiotic factors influence their sample. Ice is an ever-present factor here in the Bering Sea. When scientists get off the ship and go back to their research labs, they will want to know what the weather was like and what the ice was like on the days and times they took samples.
Jeff Napp, a senior scientist onboard Healy, puts fine nets in the water to trap phytoplankton and zooplankton. He will use the ice observation data.
We were told it’s the first time anyone has been so regular in reporting this data. And what we are doing is very valuable to them.
