The End: Return of the light

Lab in light 1

It may be common courtesy to switch the lights off when you leave a place, but nothing really behaves the way you expect during the polar night. So as our stay in Ny-Ålesund comes to an end we switch the lights back on in the Marine Lab and the harbor.

Some intense weeks on Helmer Hanssen and in Ny-Ålesund are over. The Marine Night participants are back at home (or at UNIS), trying to make sense out of the massive amount of data that has been collected during the campaign – to shed some light on the dark of Polar Night.

With us disappearing, also the darkness disappeared and light returned to the Marine Lab and the harbour in Ny-Ålesund. With the end of the campaign for this year, let’s finish with some acknowledgements:

Thanks to all participants, for making this Polar Night campaign such a great success!

Thanks to Jørgen for getting it up and running, keeping control of all diverging interests and the first-time ever “underwater robotics in the Polar Night” course.

Thanks to Kings Bay in general and Sebastien Barrault of the Marine Lab in particular, for supporting us with all our weird requests and turning the entire harbour area into a pitch dark Polar Night laboratory. Without their cooperation and help this project would not have been possible.

And of course, thank you so much for following us, dear readers, without you this blog would have been meaningless! If we got you hooked on Polar Night science, follow our main page for updates on results and other projects! http://www.mare-incognitum.no

We end this blog  with some pictures of the Marine Lab in a way none of us has seen it during the last weeks – in bright light, inside and outside.

Daniel Vogedes

All pictures: Malin Daase

Lab in Light 2

Lab in Light 2

Harbour in Light

Harbour in Light

Lab in Light

Lab in Light 3

 

 

 

Final day in the field

Loads of cargo - and this is only the stuff for the air fright with our little plane... (Photo: Daniel Vogedes)

Loads of cargo – and this is only the stuff for the air freight with our little plane… (Photo: Daniel Vogedes)

“Do var en do”, or “das was das” as they say in German…

Final day in the field, and all goes down into boxes. This morning two planes loaded with students, researchers and equipment left Ny-Ålesund for Longyearbyen. Left here in Ny-Ålesund were only the last 15 people with the questionable pleasure of sorting out all the leftovers and last pieces of equipment. Fortunately, we have a German and über-organiser with us to create order out of chaos – Daniel Vogedes. Actually, the packing reminds me of the pub-night we had on Saturday – a few of us (Paul, Eva, Gerald and myself) left the remanding party for a game of pool. While playing, we quickly realised that we were all stunningly lacking any talent for handling balls with a long stick. In fact, it was as if entropy would have been a better strategy than any f us aiming at any of the 6 pockets. And entropy is what would have ruled the day of packing had it not been for Daniel – thanks to him things came into their correct boxes and (in more or less an orderly manner) onto pallets. All in all we have now packed some 1500kg of equipment in loose boxes that will go back to Longyear by plane and 11 large pallets of additional equipment that are to be sent back by boat – the coastguard will kindly bring them back to Longyear in February). In addition to this, is of course all personal luggage for all 60+ participants. All in all, quite a circus…with Daniel in the middle hurding people around with a whip in his hand!
Anyway, we are on our way home. We have had some 900 researcher days in the field over the last two weeks, and we have all but emptied Kongsfjorden for zooplankton. We have used and successfully tested prototypes of purpose-built light sensors that for the first time have made it possible to character size and quantify the changing light that affect all organisms in the ocean during the polar night, and we have successfully used a wide range of underwater automated platforms to study the patterns and processes that characterise the marine polar night. We have collected unrefutable evidence for werewolf activity among Arctic zooplankton, and we have unique data on the diet of seabirds that are found up here in the dark. And, finally, we are all returned unharmed and safe!
The coming months will now be filled with data-handling. lab-analyses and writing up as much results as possible. After all, it is not more than 345 days until a new polar night adventure starts in January 2015!
Jørgen Berge (expedition leader)
Don't you mess with the boss! Jørgen surely has control. (Photo: Malin Daase)

Don’t you mess with the boss! Jørgen surely has control. (Photo: Malin Daase)

Lo mejor del Sol, el brillo de la Luna – The best thing about the Sun is moonshine

[Spanish below]

Accross the fjord

Accross the fjord (Photo: Kajetan Deja)

I long believed that this sentence, from a Spanish song by Fito & Los Fitipaldis, did not make much sense. The best of the sun is its own brightness and wonderful warmth. After spending a month of January in the complete darkness of Svalbard – first on board the research vessel Helmer Hanssen and then at the Kings Bay Marine Laboratory in Ny-Ålesund – I discovered the true importance of the Moon (see other blogs). Also, thanks to her we have been able to enjoy amazing landscapes.

As I have learned from Kim Last (a visiting scientist from SAMS in Scotland, a specialist in biological clocks in marine animals) moonlight is actually known to be very important, especially in the timing of reproductive cycles in many marine organisms, ironically in places very far from here in the tropics. Marine animals like corals use moon phase to tell them when to reproduce since the phases of the moon are almost like a clock in the sky. Furthermore the gravity of the moon (and to a lesser extent the sun) causes the rise and fall of the tides. These tidal signals are not only obvious on our shores but also penetrate deep into the ocean. Animals that live in the deep sea are in complete darkness and so they probably use tidal signals much like a calendar although we do not yet have much data about these mechanisms. We have found that here in the cold dark waters of Ny-Ålesund that lots of animals in the plankton migrate when the moon rises. This is quite a new finding and very exciting.

So we see that the moon is indeed very important to orchestrate the behaviour of animals. It is like a clock for life on earth especially in the sea, and, as we have found, it is really relevant during the Polar Night.

Marina Sanz-Martín, Kim Last and Gèrald Darnis.

“Lo mejor del Sol, el brillo de la Luna”.

Durante mucho tiempo he creído que esta frase, que procede de una canción española

House in Ny Ålesund

House in Ny Ålesund (Photo: Kajetan Deja)

escrita por Fito & Los Fitipaldis, no tenía mucho sentido. Lo mejor del Sol es su propio brillo y su maravilloso calor. Después de pasar el mes de Enero en la completa oscuridad de Svalbard, primero a bordo del buque de investigación oceanográfica Helmer Hanssen y más tarde en Kings Bay Marine Laboratory, una base científica noruega en Ny-Ålesund , he descubierto la importancia de la Luna (ver otros blogs). Además, gracias a ella, hemos podido disfrutar de unos paisajes impresionantes.

Del doctor Kim Last (investigador de SAMS en Escocia, especialista en los relojes biológicos de los animales marinos) he aprendido que la luz de la luna es realmente importante, especialmente en las temporadas reproductivas de muchos organismos marinos,  irónicamente en los trópicos, lugares muy alejados de aquí. Animales marinos, como los corales, utilizan las fases lunares para reproducirse. Para ellos, la Luna es un reloj en el cielo. Es más, la gravedad de la Luna (con mayor influencia en la Tierra que la gravedad del Sol) provoca las subidas y bajadas de las olas. El oleaje, evidente en nuestras costas, también penetra en el océano profundo. Los animales que lo habitan viven en absoluta oscuridad, por ello es probable que utilicen los pulsos del oleaje como si de un calendario se tratase. No obstante, todavía no hay muchos estudios que identifiquen estos mecanismos. En las frías y oscuras aguas de Ny-Ålesund hemos encontrado que muchos animales planctónicos migran cuando la luna asciende. Este es un descubrimiento bastante reciente y muy emocionante.

Por lo que hemos podido ver, la Luna orquesta el comportamiento de los animales. Actúa como un reloj, especialmente en el mar, y es muy relevante durante el invierno del océano Ártico o la Noche Polar como la llaman aquí.

Marina Sanz-Martín, Kim Last y Gèrald Darnis.

Being late

She was in a hurry. Time seemed to have slipped un-noted through her fins. It wasn’t the first time. But why was she here, then, in the icy Kongsfjord at 79° N, on a dark January day, nearly 12 degrees latitude from the traditional spawning area off the North Norwegian Islands Lofoten and Vesterålen? A 1300 km swim – against the ocean currents?

Was it the seemingly immenseness of the task that had made her postpone the departure? Or had the surprisingly plentiful menu of shrimp, herring, capelin and haddock made he believe that she was in one of the Fjords along Finnmark, and not in Kongsfjord on the north-western corner of Spitsbergen? She felt the growing bag of roe pressing against her stomach inside her. Her appetite was not as intense now as it had been during the autumn months – but something told her that she needed larger energy stores to make it all the way. Always choices to make.

Depart now and contribute to the next generation – or ignore the urge this time and stay behind and enjoy the bounty of food being offered? Staying with the noisy black and white birds, diving and flashing their dangerous beaks in search of food in the dimly lit water masses? – they had chosen to stay the winter here in the darkness, only illuminated by luminescent krill searching for food, the moonlight and the illusive northern light – could she do the same?

A third option was to swim towards the more northerly spawning areas in Breivikbotn off Sørøya in Finnmark. “Little Lofoten” was the common name of this site – she had never been there. But this trip would be a bit shorter, and departure could be further postponed. But here in Kongsfjord she wasn’t on her own. Several handsome young males were in the same situation as her. Increasing pressure from hormones and growing gonads signalized next generation eagerly waiting to be conceived. Did they really need to go the long way to the coast of the mainland to breed? Wasn’t Kongsfjord an equally appropriate alternative?– an availability of food of all sizes and qualities, but probably water temperatures a bit on the cool side ?– and ofcourse the presence of the numerous, somewhat odd cousins, the polar cod, which clearly had chosen to breed on site in the darkness.

She was 90 cm long, in good shape, ready and capable of the long swim. She had made the journey to Lofoten twice before, but never from a starting point this far north. She liked the trips to Lofoten, the feeling of being part of something beyond herself, the making of life. And her own offspring had also turned up here in Kongsfjord. The rich, pelagic concentrations of krill were ideal food for young cod, feasting fin by fin with haddock, capelin, redfish and herring, the former being the results of her and thousands of other mature cod spawning off Lofoten in spring 2012 and 2013.

No – it had to be yet another voyage. But this time, the reluctance to depart proved wrong. The last effort on filling her stomach in the dense, pelagic food abundance led to an unexpected and fatal encounter with a researcher’s pelagic trawl. Her last contribution then was to stimulate curiosity among scientists and students working to describe and understand the polar night marine ecology of the Arctic.

This little story is fiction and fantasy, but is describes how events could have evolved for the largest fish, a 90 cm female Atlantic cod, taken in one of 9 trawl hauls in Kongsfjorden, Svalbard during the ARCTOS research program Marine Night, January 2014.

Sincerely,  Lars-Henrik

Time Lapse Camera

We are challenging the common perception that the polar night is void of life. First, we measured the photosynthetic capability of macro algae in the extreme light limited environment. Surprisingly we found that the dark-acclimated macro algae were capable of utilizing light that was put into the system in a much similar way as light-acclimated macro algae.

In addition, we deployed a time lapse camera for 60 hours, taking a picture every 5 minutes in an attempt to capture the biology in the system.  2 polar cods were placed on a rod in front of the camera to capture the scavengers active during the polar night.  The results show significant biological activity on the benthos including whelks, amphipods, crabs, fish, etc most of which are feeding on the polar cod bait. The film is an example of how much polar cod has been consumed in a 12 hour interval. We expected significant bait consumption but we didn’t expect it to happen at such a fast rate, we were also unsure of the players that would be feasting on the polar cod. The film is a really good example of how  active an ecosystem can be in low light environments.

Kaytee, Stein and Ingunn

 

Mission impossible – ?

Afternoon sampling in Kongsfjorden

Afternoon sampling in Kongsfjorden (Photo: Jan Sivert Hauglid)

When I started to tell my colleagues back home in Oslo that I will be going to Ny-Ålesund in January to measure photosynthesis in the dark, they just laughed at me. Photosynthesis is the process that algae (and plants) use to make biomass from CO2 and water, using the energy of sunlight. And there is the catch: how should anything like this work under permanently dark conditions, as we found during the Polar Night?

Ok, I was aware of this catch too – but: the question I still found very interesting was: how do the algae survive the long winter, and what are they doing there???? Every spring, we witness how algal growth almost explodes, as soon as enough light is available (which might be very little, as a matter of fact….). But what are the algae doing before that? Where do they come from? From my colleagues research in the previous years, I knew that there were algal cells to be found in the water column in the middle of the Polar Night, but they were very, very few……

So when I headed out to do investigate this I faced two challenges:

– I wanted to measure something that was not supposed to be there in the first place and;

– I wanted to do this in organisms that would be really hard to find in sufficient amounts.

I had brought with me a really fancy instrument that should – in theory at least – be the only device that may be able to provide me with information about the physiological state of the algal cells out there in the dark – provided that I could find enough of them in the first place to gain a measurable signal.

Red-light research in the lab

Red-light research in the lab (Photo: Malin Daase)

Not surprisingly, working in the dark Polar Night poses challenges in many practical aspects, as have been mentioned several times before – however, this is made even worse, if one not only wants to find an animal or an algae (like a needle in a haystack), but if you also need to get them back to the lab alive, undisturbed by any light (as you want to observe its activity under the current  natural conditions, which are ….. – dark).  From a practical point of view, this means you need to get very familiar with all the gear and instruments you want to use, and keep all tiny parts of equipment or clothing (like gloves!) right at hand – because otherwise you won’t be able to handle all this in the dark. Luckily, we can cheat a little bit, as it has been proven that red light does not affect the organisms as strongly as any other type of light. For this reason the lab area that is occupied by groups working on physiology of living organisms turned into the “red-light-district”, metaphorically speaking of course, with cold and dark rooms, where the organisms are kept under natural conditions, lit up only sporadically by  red head lamps indicating research activities.

Getting back to the hunt for photosynthesis in the dark: it took a week to figure out that the way of concentrating up the water samples I had intended to use did not yield any measurable signals – and still I did not know whether this was due to  there being too few algae cells, or that there simply was nothing to be measured. But after the the R/V Helmer Hanssen had visited us here in Kongsfjorden, my dear colleague Tove from UNIS lent me a tiny little net that I figured out could simply be towed slowly behind a boat to filter large amounts of water, thereby getting enough material to measure — simple story AND it worked!

Happy curves - phytoplankton signals from night samples

Happy curves – phytoplankton signals from night samples (Eva Leu)

From this day onwards, I was maybe the happiest scientist in the group, and measured frenetically any traceable signal that actually proved that my beloved little green friends out there were fully capable of photosynthesis – even at this dark time of the year! Whether they really do it, and how much light they need for it, will be subject to future investigations. But from the concentrated samples we also could take some pictures of the beautiful little creatures that are often neglected (and in particularly in the dark!), although the fate of the entire ecosystem relies on their ability to produce biomass…

Eva Leu

Life!

Life! (Photo: Eva Leu, Malin Daase)

More life!

More life! (Photo: Eva Leu, Malin Daase)

 

New hyper sensitve sensors reveals light in the dark

When the polar night appears black for most eyes and even sensors, new equipment is on board the UNIS course to measure the “unseen” light. Two new prototypes which just arrived before departure from the mainland, has now been deployed and tested for the first time. The results are surprisingly good and show clear variations in the light regime throughout the day. This means that the sensors are able to detect even minute amount of light during the polar night. Compared to commercially available light sensors today the new prototypes are many many times more sensitive. In addition to the prototype sensors we have mounted an camera that has taken a time series of the sky to visualize what we are trying to measure. The photographs are quite amazing as you can see. Dark is not dark!

Ingrid Kjerstad, Lars Lønne

All sky image of the sky in Ny-Ålesund together with the marinelab and the laser beam from the Alfred Wegner Institute observatory (photo: Geir Johnsen)

All sky image of the sky in Ny-Ålesund together with the marinelab and the laser beam from the Alfred Wegner Institute observatory (Photo: Geir Johnsen)

Midday in Ny-Ålesund - pretty dark! (Photo: Lars Lønne)

Midday in Ny-Ålesund – pretty dark! (Photo: Lars Lønne)

Amazing underwater video by Robert Staven: Thick-billed Murre feeding in the Polar Night

There is no doubt that the creatures of the night are active also in the long Polar Night. Check out this amazing underwater video by Robert Staven, shot during the Marine Night campaign just outside the Marine Lab of Kings Bay.

The darkness and light of the arctic polar night

Greetings from Ny-Alesund in Svalbard! As this is written we are surrounded by a very special phenomenon. It occurs during the arctic wintertime and is called the polar night. In Svalbard the polar night last for approximately two and a half months each year. While people in other parts of the world start their day with the shining sun, the people of Svalbard and other parts of the arctic wake up in absolute darkness. The everlasting night has various effects on humans. You enter a kind of hibernation mode making it extremely difficult to get out of bed in the morning. We recommend a strong dose of self-discipline and a very persistent alarm (mine makes me solve maths problems before it gets silent). In the dark you also have a tendency to walk into things and fall over a lot especially if you forget your headlamp at home. Finally, your lonely morning walks, which might usually help clear your head become quite stressful as the thought of a nearby polar bear hidden in the deep dark has a way of disrupting tranquility.

But the darkness isn´t absolute. The absence of the sunrays allows other natural wonders of light to take over and transform the polar night. With a clear sky above you can eat your lunch under a full moon and dancing Aurora Borealis. Approaching the seasonal shift in late polar winter the irradiance of the sun starts to spice things up with fascinating colors. Besides the input of light by astronomical and geophysical events, organisms can also make their mark on the polar night. Luminescent organisms are very abundant in the ocean. In fact bioluminescence comprise one of two major light sources in the biological world along with the sun.

As these various light sources are now being studied and measured for the first time we will soon unveil the numerous mysteries of the Arctic polar night. Is bioluminescence a defensive function or simply show off? Is there any hanky panky going on in the polar night? Stay tuned! We will bring you these answers and many more.

Regards, Jóhann, Nína and Stuart.

A walk on the beach by the powerful light of a full moon.

A walk on the beach by the powerful light of a full moon. Picture: Stuart Thomson

The Aurora Borealis serve as a light source in the skies over Ny Alesund.

The Aurora Borealis serve as a light source in the skies over Ny Alesund. Picture: Stuart Thomson.

A fantastic phenomenon of a red horizon in the polar night.

A fantastic phenomenon of a red horizon in the polar night. Picture: Stuart Thomson.

Beroe cucumis bioluminescence in the lab.

Beroe cucumis bioluminescence in the lab. Picture: Stuart Thomson.

 

 

200,000$ (nearly) lost to the abyss, Iceland saves the day

 

Marine Lab

Marine Lab

Our work in Ny-Ålesund has reached a new phase. A rather large amount of data is starting to pile up, and thus some time needs to be allocated to actually processing all the data we have.

As there are a lot of Norwegians around, let’s take a moment to discuss the weather: it changes a lot. As a scientist, one must always be prepared for the possibility that plan B, C or D must be utilised because plan A is depending on good weather.

A little R&R by the beach

A little R&R by the beach

A few days ago we almost lost the winch and a whole lot of precious equipment to the deeps of Kongsfjorden, luckily a brave scientist in training from Iceland demonstrated super rapid reflexes and near super human strength managing to save the winch and cage from going overboard and forever be lost.

We now have a new (properly marked) wire thanks to Rupert with a buoy attached to the heavy cage and a safety rope on the winch itself. Sampling could not have gone more smoothly than it did yesterday. Everyone was happy, especially when beautiful bioluminescence flashes were seen during the transfer from the zooplankton sampling net to the bucket.

AUV ready for deployment

AUV ready for deployment

Additionally, we managed to successfully replicate backscatter measurements with the AUV and confirmed the results from a previous study. Now we are preparing a mission to map the variability of zooplankton migration across the fjord.

Over and out.

Sebastian Menze, Ida Nordgaard, Hugo Maxwell

 

Leptoclinus maculatus: constant interest and increased company of fans

Hei!

Svetlana Murzina and Svetlana Pekkoeva pick up Leptoclinus from the bottom trawl

Svetlana Murzina and Svetlana Pekkoeva pick up Leptoclinus from the bottom trawl

 

Let me introduce to you our company of Leptoclinus fans: Stig Falk-Petersen (Akvaplan-niva and University of Tromsø, Norway), Svetlana Murzina and Nina Nemova (Institute of biology, Karelian research Centre RAS, Petrozavodsk, Russia), Camilla Ottesen (University of Tromsø), Jorgen Berge (University of Tromsø and UNIS). What is it about this small and tiny fish, Leptoclinus? Leptoclinus maculatus or daubed shanny is an ecologically important fish in the Arctic, with a complex and unique life cycle. Larvae are pelagic for may years and adults are bottom inhabitants. This fish has a serious program of adaptation to live in the Arctic. Larvae fed on Calanus spp. and convert (to be small and tender!!!) fats of one structure to beneficial fats of another structure, that is necessary for development and buoyancy, and concentrate the lipids (fats) in the special part of their body, the lipid sac. The lipid sac is, simply visible by eyes, situated on the belly of small fishes, and looked like a “honey comb” (according Morgan Bender, UoT) or a bunch of grapes.

Svetlana with lots of Leptoclinus

Svetlana with lots of Leptoclinus

After one year break of field activity and serious work in the lab, analysing daubed shanny ecology and biochemistry … but with inexhaustible interest to this fish we came back on the cruise to investigate the life strategy and lipid biochemistry of this tiny fish with thirst to get more fun. The break from the field sampling was successful for our international team of fans of Leptoclinus, we published three papers in scientific journals like,  Fish physiology and biochemistry, Polar biology and Journal of molecular sciences. New finding in the understanding of the fish reproduction, adaptation and ecology created new questions for further research.

Lab work on board R/V Helmer Hanssen

Lab work on board R/V Helmer Hanssen

Now we fulfill our dream to continue the research in the RCN funded SpitsEco project. Good news… our company of fans increased, we have new PhD student Svetlana Pekkoeva (Institute of Biology Karelian Research Centre RAS, Petrozavodsk, Russia) which were touched to the bottom of her mind by the story of this tiny fish living in the Arctic and she decided to join our scientific team and enjoy the research.

Written by: Svetlana Murzina.

Developmental stages of Leptoclinus maculatus

Developmental stages of Leptoclinus maculatus

Last day on RV Helmer Hanssen

The road map to Polar night studies started to develop before the International Polar Year more than 5 years ago. The ARCTOS network took part in many large IPY programmes, but none covered the darkest period of the Arctic winter. In 2006 we published a paper on Diel Vertical Migration during the Arctic Summer based on the data from an acoustic instrument (ADCP) mounted on the Observatory in Kongsfjorden. The year after, in 2007, the acoustic data from the observatory showed a clear diel vertical migration pattern of zooplankton during the Polar Night from November to March. After discussion and literature research it became clear that there was very little data, and a clear lack of knowledge and understanding, of marine life in the Arctic during the Polar Night. This triggered a large interest in Polar night biology of the Arctic Seas.

Then the self-appointed spiritual leader Jørgen Berge coupled up with gadget freak Geir Johnsen and the trip to the moon started. After they decided that the sun was not important, it was the circadian rhythms – but of course that was too boring: the moon was more interesting, and since then all was about the moon. The moon now rules the word, werewolves hunting in the dark, bioluminescence enables winter sex, and the fish with the largest balls swims in the deep, the bowheads have found the treasure at the rainbow’s end where the aurora sings during the polar night.

On this 7-day Polar night cruise we have been joined by scientist and students from Russia, Poland, Sweden, Scotland, England, Spain, Martinique, Denmark, USA, Germany and Norway. Participants represent several research projects, including MarineNight, CircA, MicroFun, Polarisation, and SpitsEco (see http://www.mare-incognitum.no/). The cruise also contributes to the University of Tromsø course BIO-8510 ARCTOS – Marine ecological research cruise to Svalbard (http://www.arctosresearch.net/) and AB-334 Underwater Robotics in the Arctic Polar Night  given by UNIS (http://www.unis.no/).

Paul Renaud and Stig Falk-Petersen

Bloggers of the world unite! Day 4 on Helmer Hanssen

18.01.2014

We’ve spent the last three days throwing a lot of equipment and gear into the water to detect whether or not marine life is active in the polar night. For the mooring team aboard Helmer Hanssen the first three days have been very busy recovering a mooring in Isfjorden and deploying two moorings in Kongsfjorden. Meanwhile the plankton team has deployed a variety of nets into the water to see if there is anything out there in the dark waters of Kongsfjorden.

We’ve been chasing zooplankton using two techniques – acoustics and nets.  Acoustics tell us where the animals are, and nets tell us what the animals are. The acoustics on the moorings allow the constant monitoring of the zooplankton through the year. It’s a bit like what the NSA is doing in the rest of the world, but we just focus on the Arctic.

There has been surprisingly good illumination over the past days with a full moon and the first hints of light appearing at noon towards the south. We still await for enough light to reveal the skyline behind Ny Ålesund. But mostly it is dark, and since we work around the clock catching up with sleep at random times we all are somewhat lost in time with only the meal times providing some sort of day rhythm.

Before we left Longyearbyen our spiritual leader (Prof Berge) had left with the full moon running with the werewolfs. Where does he get the blood from is the big question for these investigations.

Colin Griffith, Finlo Cottier, Malin Daase, with guest comment by Stig Falk-Petersen

Saturday the 18th of January 2014, somewhere on Kongsfjorden

Sooo what happened today…

… about  50 L of seawater was filtered so far for different kind of stuff… such as DNA, RNA, POC/PON and Chla…and it will be over 100 L at the end of this day!

… Chlorophyll was measured in huuuuge low amounts (but something is there!)

… about 2000 Millions of krill (or more precisely a huge amount of krillgrøt)  was fished from the 100 Millions of zooplankton nets.

… Poo production of zooplankton was supposed to be measured…but there was no shit found in the experiment buckets.

…a lot of mud was taken out of the fjord, at a time of day where run-of-the-mill human beings are normally sleeping, but not many life forms were found in it.

… an epi-benthic sledge was deployed, and so far it didn´t break – huge success!

… one midwater trawl was taken and too much just small fish were caught…and krillgrøt! Going for the big ones later on…

… AND quote of the day by Daniel: ”For those who´re going to Ny Ålesund tomorrow and have dirty clothes…wash them on board, you can dry them on land. And for those who are dirty, shower on board before you go on land.”

Cheers from Helmer Hanssen,

Trine, Miriam, Kajetan & Mikolaj

Epibenthic sledge catch. Picture: Kajetan Deja

Epibenthic sledge catch. Picture: Kajetan Deja

Chlorophyll a measurements

Tove and Anna measuring Chlorophyll a. Picture: Miriam Marquardt

Svetlana and Sveta happy about all the small fish

Svetlana and Sveta happy about all the small fish. Picture: Miriam Marquardt

Fish group on sofa

Fish group passed out in the canteen area. Picture: Miriam Marquardt

Krillgrøt

Krillgrøt. Picture: Trine Callesen

Epibenthic sledge deployment

Epibenthic sledge deployment. Picture: Kajetan Deja

Krill

Krill. Picture: Trine Callesen

 

A fjord full of krill

Krill. Picture: Gérald Darnis

Krill. Picture: Gérald Darnis

When most people think of krill their first thoughts are of Omega-3 capsules and food for whales in Antarctica. Whereas at least 4 species of krill are abundant around Svalbard and in the Barents Sea, they have rarely been found in high abundances in west coast fjords. Thus, we were surprised to see dense concentrations of highly active krill in Kongsfjorden in the middle of the Polar night. What sustains such activity? Their primary food source from spring to autumn is thought to be phytoplankton, which are all but absent at this time of year. Their guts show no evidence of any recent food consumption, further mystifying Polar-night researchers. Are they living from lipid reserves, or perhaps consuming transparent microorganisms like protozoans? This remains to be determined.

Krill are a central player in the CircA project, which investigates circadian rhythms in zooplankton during winter, their causes, and ecological consequences. PhD stipendiate Julie Grenvald is on board Helmer Hanssen tracking their daily abundance rhythms throughout the water column, sampling for analysis of their feeding preferences, and preserving samples for later genetic analyses. Gérald Darnis, a post-doctoral associate on the CircA project, investigates their role in carbon and nitrogen cycling. Finally, these high abundances of krill are accompanied in the water column by predatory fish, such as Atlantic cod, polar cod, haddock, juvenile herring, and juvenile redfish. The presence of such an active food web with krill as a central player during the Polar night is one of the most exciting discoveries of this expedition. But like all new discoveries, it leaves us with more questions than answers.

Gérald Darnis, Julie Grenvald, Paul Renaud

First day at sea

Fig 1: Packing at UNIS (Picture: Anna Vader)

Fig 1: Packing at UNIS (Picture: Anna Vader)

We left Longyearbyen the evening of the 15th of January after a busy day of packing amazing amounts of heavy research equipment on board R/V Helmer Hanssen (Figure 1. Packing at UNIS). We even packed a ton of water and a pallet of hay needed in Ny Ålesund!

After arriving in Kongsfjorden early next morning the deck became the scene for frantic activity. Because this is a short research cruise, our sampling schedule is unusually tight. Every type of sample will be collected both around noon and around midnight each day. The major event of the day was the deployment of a mooring equipped with acoustic loggers (Figure 2. Deployment of the mooring).

Fig 2: Mooring launch (Picture: Ronald Berntsen)

Fig 2: Mooring launch (Picture: Ronald Berntsen)

These will continuously log the vertical movements of zooplankton for the duration of the campaign.

All other sampling schemes (for example water samples, plankton nets, Video Plankton Recorder) also started up during the day.

Both net samples and images from the Video Plankton Recorder showed large amounts of krill in the fjord. (Figure 3. Krill pictures from the VPR).

Svein Kristiansen, Fredrika Norrbin, Anna Vader

Fig 3: Krill captured by VPR (Picture: Frederika Norrbin)

Fig 3: Krill captured by VPR (Picture: Frederika Norrbin)

Fig 3b: More Krill captured by VPR (Picture: Frederika Norrbin)

Fig 3b: More Krill captured by VPR (Picture: Frederika Norrbin)

Day 2 in the Night

We started our course in Longyearbyen, Svalbard and have made our way to the world’s most Northerly settlement, Ny Ålesund. The journey to Ny Ålesund is quite an adventurous experience and involved a half hour flight over moonlit mountains in a very small plane. Not only is Ny Ålesund the world’s most northerly settlement but it is also the regular haunt for local polar bears and we are on the look out for any such curious critters who might want to “help” us with our science.

Dornier plane

Dornier plane

As we are researching the polar night the darkness is really important and the management group of King’s Bay have done an awesome job of keeping the harbour area dark for us.

View from marine lab

View from the Marine Lab, mountains in the background and fjord in the foreground

Already we have been experiencing a variety of local weather conditions, with mild days and a little light snow. Light for polar night with a very awesome full moon, apparently turning us all into werewolves, an event to look forward to! We have also been lucky enough on occasion to see the Northern Lights (Aurora) in our Lunch break. We’ve been broken into 4 groups according to our interests and abilities and have spent the most of today going around and getting to know the equipment we’ll be using for the next 2 weeks. For some of us this involved getting excited about the robots themselves and for others we learnt about a million different ways you can detect and analyse light and the properties of the water column.  We’re very much looking forward to the arrival of the University of Tromso research vessel, the Helmer Hanssen which is bringing with it some more awesome equipment and researchers. The ship arrives tomorrow and after the unloading we’ll get to meet all the other scientists who will be working with us on this campaign.

The ROV

One of our newly beloved science babies

Over the next few weeks we’ll be posting all about our research discoveries with the occasional anecdote in-between. Keep an eye on this blog for all the news and updates!  

Amelia, Inga og Piotr

Two stressed course leaders, two and a half planes, twenty students, no water and a sparkling darkness

Yesterday we left Longyearbyen with all our equipment, colleges and students. Months of planning and preparing have ended, and we are now in place in Ny-Ålesund where we will carry out the largest polar night expedition ever conducted (at least to our knowledge).  It took us two and a half airfreights to get here, but even then we had to leave a lot behind. Fortunately there was room for all our students – the rest will come with group II on RV Helmer Hanssen on Thursday.

Sky

Fish eye picture of the sky – in the south behind Ny-Ålesund the red sunlit sky, in the northeast a bright moon and straight above the flickering northern lights. Who said the polar night was just a dull darkness? (Picture: Geir Johnsen)

We were met by a surprisingly mild weather – nearly clear skies and around 0°C. And no water. Or at least a critical shortage of drinking water in the settlement. However, and more importantly, we woke up this morning to a truly sparkling polar night – no clouds, a bright and almost full moon, northern lights and a green laser beam from one of the research stations pointing straight up into the sky. The colours that filled the sky today was simply extraordinary and beautiful. Seeing this today, amidst all thinkable and unthinkable problems with instruments and gadgets reminds us why we are here – to lure away from mother nature some of the most well kept secrets on the planet, the secrets of the polar night. Using the best underwater technology available and a group of 21 motivated and inspiring young students. Over the next two weeks, this will be our main ambition. And we will focus our attention towards yet another source of light – the bluegreen light that so many marine organisms produce at this time; bioluminescence (morild in Norwegian). This kind of light is otherwise very well known from especially the deep oceans, but here at the high latitudes of Svalbard (79°N) it becomes a characteristic phenomenon also of shallow waters during the polar night. Why do organisms produce such light? What significance does it hold in the everlasting game between organisms looking for food and organisms trying to avoid becoming exactly that? And how do we measure it in real life in the ocean during the polar night? This will be our tasks over the next two weeks, and on the way we will deploy and use a wide array of underwater platform and sensors – most of which are brought up into the polar night in close cooperation with the AMOS Centre for Excellence on underwater robotics at NTNU.

Colours everywhere! (Picture: Geir Johnsen)

Colours everywhere! (Picture: Geir Johnsen)

The expedition is lead by UiT, and the biggest component of the 65 man (and women!) strong team is a UNIS course on underwater robotics and polar night biology. At the moment, we are 32 researchers and students established in Ny-Ålesund, but our college Stig Falk-Petersen is coming up with Helmer Hanssen and 28 others on Thursday. The last participants are coming with a plane on Friday. And together we will be searching for dark secrets all over Kongsfjorden over the next two weeks!

Night illuminated

Night – illuminated (Picture: Geir Johnsen)