Reports

The keeping quality of chilled sea urchin roe and whole urchins

Published:

20/09/2017

Authors:

Guðmundur Stefánsson, Aðalheiður Ólafsdóttir

Supported by:

Northern Periphery and Arctic Program 2014-2020

Contact

Guðmundur Stefánsson

Sviðsstjóri þjónustu

gudmundur.stefansson@matis.is

The keeping quality of chilled sea urchin roe and whole urchins

Sea urchins (Strongylocentrotus droebachiensis) are common off the coast of Iceland and are caught in small quantities and exported mainly as whole pots. Landings in 2015 were 280 tonnes. There are markets in Europe and Asia for sea urchin roe fresh, frozen or otherwise processed. In this study, the shelf life of fresh and pasteurized eggs stored at 0-2 ° C was assessed. The effects of freezing, both slow freezing (blow freezing at -24 ° C) and rapid freezing (nitrogen freezing) were studied as well as dextrin and alum treatment. It was also estimated how long the pots kept alive at 3-4 ° C were kept alive. The sea urchins were caught in Breiðafjörður with a plow and landed at Þórishólmur in Stykkishólmur where they were processed. Some of the sea urchins were opened, the eggs removed, cleaned and used in the experiments. Whole sea urchins were packed in plastic boxes in a similar way as when exported. The freshness characteristics of fresh sea urchin roe are the smell and taste of the sea, the smell of egg yolk and the taste and sweetness of the sea. The taste of pasteurized eggs was similar to that of fresh eggs but milder. In general, over time, the sweet, sea and egg yolk taste faded, but the metallic, kelp and chemical characteristics increased. The shelf life of fresh sea urchin eggs is limited by changes in texture - eggs dissolve and become unpalatable - and a shelf life of 0-2 ° C can be expected for one to four days. Sterilized eggs kept their freshness characteristics for at least 14 days and had a shelf life of 22 days or more at 0-2 ° C without any changes in texture. The freezing of fresh sea urchin eggs resulted in them becoming mushy during translation and there did not appear to be a difference between slow-freezing or rapid-freezing. After three months of storage at -24 ° C, thawed eggs developed a strong odor which rendered them unfit for consumption. Freezing pasteurized eggs had little or no effect on their texture or taste; however, after six months of cold storage, evidence of maladaptation was found. Aluminum treatment resulted in a strong odor that rendered the eggs unfit for consumption. The preservatives sorbate and benzoate resulted in a strong taste in the eggs and a metallic aftertaste, but treatment with dextrin did not appear to have much effect on sensory properties. All whole sea urchins were alive after 5 days from fishing but on day 9 one of the 18 vessels was dead but no damage was found. It can be assumed that a whole sea urchin stays alive at 3-4 ° C between five and nine days after fishing.

The green sea urchin (Strongylocentrotus droebachiensis) is commonly found in Iceland and is currently fished and exported mainly as whole urchins. The catch in 2015 was 280 tons. There are markets both in Europe and Asia for urchin roe, fresh, frozen or processed. In this study the shelf-life of fresh and pasteurized sea urchin roe, stored at 0-2 ° C was evaluated. The effect of freezing (blast freezing and freezing in liquid nitrogen), treatment with dextrin and alum was evaluated on both fresh and pasteurized roe. Further, the keeping quality of whole (live) sea urchins at 3-4 ° C was evaluated. The sea urchins were caught in the Breidafjordur area using a modified dredge, landed at Thorisholmi in Stykkishólmur, cleaned and the whole live sea urchin were packed in the same manner as that for export. Part of the sea urchins was opened up and the roe removed, cleaned and used for the experimental trial. The freshness characteristics of fresh sea urchin roe were found to be sea odor & flavor, egg yolk odor & flavor and sweet flavor. The flavor was similar but milder in pasteurized beet. In general, with time the sweet, egg yolk and sea flavors seemed to decrease but metallic, seaweed and chemical flavors increased. The shelf-life of fresh roe is limited by changes in texture - the roe liquefies - as indicated by sensory evaluation and can be expected to be between one and four days at 0-2 ° C. Pasteurised roe had a freshness period of at least 14 days and a shelf life of 22 days or more at 0-2 ° C, with no detectable changes in appearance or texture during that time. Freezing of fresh roe resulted in a porridge like texture at thawing and no difference was seen between freezing methods, blast freezing and liquid nitrogen freezing. After three months storage at -24 ° C frozen roe had developed a strong off-flavor and were considered unfit for consumption by the panelists. Freezing of pasteurized roe did not change the texture or flavor of the roe; however, after 6 months of freezer storage, the roe had a trace of an off-flavor. Treatment with alum gave all samples a strong off-flavor which made them unfit for consumption. Preservatives (a mix of sorbate and benzoate) gave a strong flavor and a metallic aftertaste but treatments with dextrin did not have a considerable effect on sensory characteristics. All whole sea urchins were alive after 5 days from catch, but on day 9 from catch, one urchin out of 18 had an open mouth but no spoilage odor was detected. It is estimated that the shelf life of live sea urchins is between five and nine days from catch at 3-4 ° C.

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News

Great recognition to get the World Seafood Congress to Iceland

It is a great opportunity for the Icelandic fishing industry to have this conference in Iceland, to present what it stands for. There are many people abroad who envy Iceland because of how well we have managed to manage and utilize the marine resources, "says Steinar B. Aðalbjörnsson, director of communication and marketing at Matís.

The World Seafood Congress (WSC) conference will be held in Harpa 11-13. september nk. but according to Steinar, the WSC is one of the world's largest forums on value creation and food security in the fisheries sector. The conference is held every other year and is attended by employees of fishing and fish processing, investors and people from the institutional and educational environment around the world. Steinar says that it is very popular to hold the conference, which was last in the UK and before that in Canada. "It is a great recognition to have the conference in Iceland, but Iceland is the first Nordic country to hold it." on professional aspects of food safety and control related to food production in the fisheries sector, not least in developing countries.

The blue bioeconomy

The conference is from Monday until noon on Wednesday, when the Icelandic Fisheries Exhibition begins in Kópavogur. The title of the conference this time is "Growth in the Blue Bioeconomy". The bioeconomy covers all organic and renewable resources and the blue bioeconomy refers to what thrives in oceans and lakes. "We want to draw attention to the fact that everything we do affects our organic resources. When we talk about the fishing industry, we are not only talking about the fish in the sea, but also the algae that the fish thrive on, the energy used to sail the fishing grounds, how well we handle the raw material we catch, and everything else that has an effect. and is related to life in the ocean. "

Food Safety

Steinar says the agenda of the conference is decided by a scientific council composed of representatives of IAFI and Matís. IAFI's emphasis on food safety and food control and the attitudes of Matís scientists, which deviates more emphasis on business and corporate projects and financing, weigh heavily.

"Although the conference itself will not start until Monday 11 September, various groups will come here immediately on Saturday to meet over the weekend." including where fishery-related food production has not reached as far as in the West. Among other things, food safety, control and related aspects that aim to promote an adequate food supply and safe food will be discussed.

Technological revolution

On the second day, the focus of the conference will shift to a technological revolution, financing and business operations, where food production in the fisheries sector will be seen as a business opportunity. Steinar mentions as an example that a lot has been done to increase food production in North and Central Africa and make it safer. When this happens, it is considered to create interesting opportunities for infrastructure development and funding for it is obtained from international financial institutions, whether it is the World Bank or the United Nations.

The last day of the conference, Wednesday, will have a slightly different format. The coverage will only take place until noon, as the Fisheries Exhibition will begin in Kópavogur. On this last day of the conference, a lot will be done when the main innovations and technological revolutions that have taken place in the last few months in food production will be presented, with special emphasis on the fishing industry. Among others, there will be a representative from Gfresh, an online marketplace for seafood worldwide, along with Lynette Kucsma, who designed one of the first 3D food printers, but she has been chosen by the television giant CNN as one of the seven technology pioneers we should watch. In addition, John Bell, from the European Commission, will discuss how technological revolutions are affecting the European fisheries sector. More interesting speakers will also be available and the President of Iceland, Guðni Th. Jóhannesson, will then close the conference.

News

The reputation of the Icelandic seafood industry is an important prerequisite for World Seafood in Iceland

Of course, there are many things that contributed to the success of this coveted conference in Iceland. Work began on the initiative of Sveinn Margeirsson, CEO of Matís, a few years ago to better promote Iceland in this important field.

"I think that the reputation of the Icelandic fisheries sector, which focuses on sustainable fishing, full utilization of seafood and technological development, is an important prerequisite for people wanting to bring the World Seafood conference here," says Þóra Valsdóttir, consultant at Matís, who leads the conference.

Technology and marketing

According to Thora, the World Seafood Conference was established in 1969 by the Food and Agriculture Organization of the United Nations (FAO). The conference was held for several years until IAFI, an international association of professional and regulatory bodies in the fishing industry, took over in 2006 and has held it every two years since. The FAO and the United Nations Educational, Scientific and Cultural Organization (UNIDO) still have a strong presence in the conference and have a representative on its Scientific Council, which decides the focus of the conference at any given time. The council also includes representatives from IAFI and the country in charge at any given time. In addition to Matís 'representatives, the council this time included a representative from the United Nations University School of Fisheries as well as a representative from one of the conference's sponsors, AG Fisk, the Nordic Council of Ministers' Fund. "This year we have focused on linking the conference better with fisheries companies and what is happening in the technical and marketing of the fish industry, and this emphasis can be seen reflected in the agenda," says Þóra.

About 150 people, from all over the world, will give lectures and lead seminars at the conference. It lasts for two and a half days and is set up in such a way that the first two days begin with a joint seminar for all conference guests, where the tone is set by the day's keynote speakers. The conference is then divided into three parallel seminars, where three different issues are addressed, which are run in parallel. This way, conference guests can choose what they find most interesting from 9 seminars, each day. The last day is a joint seminar.

According to Þóra, the involvement of the United Nations Fisheries Academy is very strong in this project on the occasion of the school's 20th anniversary. Among other things, he invites 50 people to attend the conference in Iceland, including both former and current students of the school.

Address by the President of Iceland

Among the keynote speakers at the conference are Ray Hillborne, a professor at the University of Washington who has studied extensively on sustainable fisheries and the environment, John Bell from the European Commission, who will discuss the impact of technological change in European fisheries, and Lynette Kucsma, one of the designers of the first food printer. She also mentions Vilhjálm Vilhjálmsson, Grandi's CEO, who will discuss investments in the fisheries sector, Anthony Wan, the founder of Gfresh, China's largest digital marketplace for seafood. Contributions from the World Bank are also expected, in addition to which the President of Iceland, Guðni Th. Jóhannesson, will address the conference.

Asked how Matís finances the conference, Þóra says that the conference and Matís enjoy having good sponsors. Arion Bank is the main sponsor of the conference, but other major sponsors are Brim, HB Grandi, Marel, the Nordic Council of Ministers (AG Fisk fund), Íslandsstofa, the United Nations University Fisheries School and Icelandic.

Atlantic Ministers meet

On the Sunday before the conference, FAO, IAFI and the United Nations University School of Fisheries will hold seminars at Matís' premises. After that, Matís invites all conference guests to a reception. On Monday evening, Arion Bank will host the conference guests and on Tuesday there will be a gathering on the occasion of the 20th anniversary of the United Nations University School of Fisheries, where, among other things, IAFI recognition will be given, including for the best poster.

Þóra also mentions that in connection with the conference, fisheries ministers from several countries in the Atlantic will come to Iceland and meet with the Minister of Fisheries on fisheries and co-operation in the fisheries sector. They will attend part of the conference and will also visit the fisheries exhibition in Kópavogur in the future.

News

The first dishes from Icelandic ingredients come from the food printer

The first dishes printed from Icelandic ingredients came from a Foodini food printer at Natural Machines' headquarters in Barcelona, Spain last month. It was dr. Holly T. Petty, a consultant at Matís who worked there with the printer's producer and used salted Icelandic cod, cod halibut and cod protein in the experiment.

With the printer, she shaped, among other things, the saltfish volcano that can be seen in the attached picture. Holly leads a research group under the auspices of Matís, which is working on the project "Fish of the Future" and is funded by the Rannís Technical Research Fund.

In the coming months, the group will work on developing methods to utilize Icelandic seafood as a material for food printers, but it is predicted that it will be as common a tool in Icelanders' kitchens in the future as the microwave oven is today.

Innovative adventure ahead

She says it has been extremely exciting to see the three-dimensional food printer working in Barcelona for the first time. "It was special to follow the recipes in a realistic way in three-dimensional print form, layer by layer, but there are many variables that need to be taken into account, such as ingredients, ingredients, processing and texture. In the end, you feel as if certain results have been achieved and that there is a certain opportunity here. ”Holly says she is grateful and proud to be a food scientist and at the forefront of innovation where sustainable Icelandic ingredients are used for 3D food printing. "This is only the beginning of strengthening Icelandic seafood domestically and globally with three-dimensional food printing. I look forward to participating in the innovative adventure that lies ahead and to continuing to work with the device that has been called the microwave oven of the future. "

She says the food printer opens up various new possibilities in cooking and enables consumers to take healthy foods such as fish and mix it with other healthy products such as vegetables and create exciting foods that they would not otherwise have access to. "Instead of just boiling the cod, for example, you can shape the raw material in the printer so that it looks like a volcano and put sauce in the crater, which is perhaps something that appeals more to modern consumers than just the piece of fish on the plate. In fact, this is the same raw material, but the service is different, "says Holly.

The food printer will be shown at the World Seafood Congress 2017 which will take place in Harpa from the 11th to the 13th. September next.

News

The Association of Research Directors in Iceland and Rannís held an educational meeting at Matís today

Contact

Anna Kristín Daníelsdóttir

Deputy CEO / Director of Research & Innovation

annak@matis.is

The Association of Research Directors in Iceland and Rannís held an educational meeting with Gill Wells, Head of the European and Policy Office of the Oxford University Research Service, today at Matís' headquarters.

The meeting discussed how to prepare an application for an individual grant ("Getting started and applying for an MSCA IF") in the Marie Sklodovska Curie Fund, but the material was specially set up for new doctors and others who are interested in Marie Curie individual grants.

An ERC workshop was also held for researchers interested in applying for grants from the European Research Council (ERC) and assisting with such applications.

Finally, "Impact and Commercialization" was explored.

Matís would like to thank the Association of Research Directors in Iceland and Rannís for this useful educational meeting. 

Learn more about Gill Wells and Oxford University Research Services

Gill Wells Head of European Team and Strategic Lead on GCRF | Research Services University of Oxford University Offices, Wellington Square T: +44 01865 289800 F: +44 01865 289801 E: gill.wells@admin.ox.ac.uk www.europegateway.ox.ac.uk

News

The kitchen of the future has come to Matís

The next technological revolution will be in the food sector, and Icelandic seafood is already in Matís' three-dimensional food printer.

Most people now predict that the next technological revolution will be in the food sector. Investors who previously invested in the IT revolution in the Silicon Valley in the United States are now investing in start-ups that are likely to revolutionize the food market with new technology and products. This is a technology such as a food printer that prints food at the request of everyone, "says Hörður G. Kristinsson, Matís' director of research and innovation. Hörður holds a PhD in food and chemistry and an MBA in business administration. He worked for many years as a professor of food chemistry at the University of Florida in Gainesville before returning home and joining Matís in 2008.

The defense turned to attack

Hörður says the research environment in Iceland is very flexible and fun and a great entrepreneurial force in people. "I came home from the United States at an interesting time in 2007, in a boom, but shortly afterwards the economy collapsed. It is interesting that despite this downturn, Matís has managed to grow and prosper, but there are many good and enthusiastic staff. Immediately after the collapse, a decision was made to turn defense into offensive, and since then we have applied extensively to foreign research funds with good results. ”He says Matís has a strong position when it comes to marine-related research and the company is one of the world's leading research companies. Among other things, Matís is one of 50 companies and universities in many parts of Europe that take part in a very large project called EIT Food, which stands for European Institute of Innovation and Technology. The seven-year project will be funded by EUR 400 million and is the largest project of its kind in Europe. The aim is to significantly strengthen food research and development on the continent and revolutionize the food industry and the education of future employees in the industry.

Icelandic seafood for food printers

Hörður emphasizes that technological revolutions tend to happen fast. Therefore, it can be expected that the aforementioned food printer, which may be considered an absurd idea today, will in a few years 'time become as common a device in Icelanders' kitchens as a microwave oven. But what is a food printer? "A food printer is a 3D printer that can prepare or print food according to the consumer's specifications. It then determines the appearance and shape of the food and can control the chemical composition according to its own nutritional needs. If he wants more protein, or certain healthy ingredients, he can tailor the food to those needs and make it when it suits him. The ingredients are in capsules in the printer, which then shapes the food according to the user's wishes. ”The food printer is already on the market and Matís has purchased such a device, according to Harður. Subsequently, a pilot project will be launched to print 3D seafood. "We intend to prepare and develop special cartridges for this printing with ready-made mixtures of seafood. With this, we want to both draw attention to Icelandic ingredients for these printers and make Iceland a leader in this field. ”Among Matís' partners in this research is the Icelandic national team, which Hörður says has shown great interest in this innovation, as well as Þorbjörn and Ísfisk, who are progressive fish processing companies. "We want to find a way to make seafood exciting again, especially for the young generation. Young people will then be able to use different ingredients from the sea to print healthy and good food. ”He says the food printer is just one of many changes that will take place in the kitchen of the future. Thus, for example, the refrigerator will also evolve and will be able to monitor the freshness of the food it stores and let you know when it is running out of time or damaged.

Distribution by drone

According to Harður, extensive research and testing is now being carried out on the distribution of food by drone. However, it does take into account that the laws on drones are very different, from one country to another. "Most of these experiments are performed in New Zealand, as drone laws are relatively liberal in that country. The company Dominos has been experimenting with flying pizzas to customers and the 7-11 chain has started sending packages with drones home to people who live a few kilometers away from their warehouse. "Amazon has recently filed a patent application for some kind of "Flying warehouse", which would be large balloons at a height of 12 to 14 thousand meters, from where it should then be possible to distribute drones of any kind to consumers. All of these are examples of the enormous and exciting developments that are currently taking place in the food industry.

World Seafood Congress

This will be discussed at the World Seafood Congress (WSC) conference, which will be held in Harpa from 10-13. september nk. Among the speakers will be Lynette Kucsma, who participated in the design of one of the first 3D food printers. John Bell, from the European Commission, will discuss the impact of the technological revolution on the European fisheries sector. Hörður says that WSC is one of the most important conferences in this field in the world and a challenging task for Matís to host it. All management of such a conference requires a great deal of co-operation, and with Matís in this project is a group of strong parties: Arion Bank, HB Grandi, Brim, Íslandsstofa, the Nordic Council of Ministers and the United Nations University School of Fisheries.

News

Are there opportunities in the Icelandic goat?

Contact

Óli Þór Hilmarsson

Project Manager

oli.th.hilmarsson@matis.is

During the autumn months, Matís and Geitfjárræktarfélag Íslands will be responsible for projects regarding increased value creation of goat products in collaboration with and with the support of Matarauður Íslands. Part of this project is to establish goat meat assessment, review procedures for slaughtering goats and clarify procedures for the retrieval of goat sheep products, for the benefit of all concerned. 

Goats and kittens are usually slaughtered for repatriation, but are less likely to be slaughtered in the same way as sheep. Goat breeding is increasing all over the country, so it is important to establish a uniform meat assessment, record results and bring better products to market. Further information is provided by Óli Þór Hilmarsson at Matís. 

News

Development, quality, safety and production of raw sausages from mutton

Contact

Óli Þór Hilmarsson

Project Manager

oli.th.hilmarsson@matis.is

Rúnar Ingi Tryggvason discussed in a special project at Matvælafræði at the University of Iceland the production of raw sausages from less expensive pieces of meat, such as mutton or horses. The project was carried out in collaboration with Matís and Beint frá býli and with a grant from the Agricultural Productivity Fund.

Sheep products are a large part of the production value of farmers in Iceland, especially lamb. Mutton is not considered to be as good meat as lamb and therefore a much lower product price is obtained as a result.  

For further information, contact Óli Þór Hilmarsson and Guðjón Þorkelsson at Matís.

News

Austerity measures

In the past month, Matís' senior management had to take action, partly due to the strengthening of the Icelandic króna and results from international competition funds. In this context, it is worth noting that, unlike many government entities, Matís is for the most part run on self-funding and a significant part of that money is due to international research projects, which have been the basis for Matís' recent growth. years.

The measures in July consisted primarily of cutting expenses and streamlining operations so that Matís would not be operating at a loss in 2017, but responsible operations have always characterized Matís.

In the run-up to the operations, all cost items were carefully examined. As in other knowledge companies, the largest cost item in Matís' operations is wage costs. The goal of streamlining was not possible to achieve solely through restraint in other costs, such as travel costs, purchases of inputs and slower renewal of equipment. The result was the dismissal of eight employees, as well as even more restraint than previous plans had anticipated in the aforementioned cost items.

News

Arctic Charr Conference in Iceland

Contact

Guðbjörg Ólafsdóttir

Project Manager

gudbjorg.olafsdottir@matis.is

Matís will organize a conference October 31 - November 1, in cooperation with the Icelandic Marine and Freshwater Research Institute, in Reykjavík, Iceland.

Matís and Marine and Freshwater Research Institute

The most drastic effects of climate change will be in the Arctic regions, home of the Arctic charr. It is therefore of great importance for counties in the region to better understand the likely extent and impact of climate change on natural resources and biodiversity in Arctic regions. Research focusing on Arctic charr will advance our understanding of the effect of climate change, and how to adapt and diminish the effect of these changes and turn them into opportunities.

The Arctic charr is well suited as a model species to help understand the effects of climate change on aquatic biota. Arctic charr is a cold-adapted Arctic species with a circumpolar distribution. Already it can be observed that Arctic charr is retreating from its southernmost locations, for example in Iceland. Climate change is predicted to have numerous impacts on Arctic charr, including loss of anadromy, biodiversity and increased competition with other salmonid species.

The conference will bring together scientists and stakeholders from relevant Nordic countries and different fields of expertise to discuss concurrent problems related to climate change. It will provide valuable information on the status and future of Arctic charr and help decision makers and stakeholders to understand possible opportunities and risks associated with climate change.

The abstracts from the conference are available here.

Location:

Marine Research Institute

Skúlagata 4, 1st floor

101 Reykjavík

Arctic charr: Ecology, genetics, climate change, and the implication for conservation and management

Tuesday, 31 of October 2017.

8.30-9.10 Registration

9.10-9.20 Welcoming words by Sigurður Guðjónsson, Director General of the Marine Research Institute Iceland

9.20-9.30 Motivation and practical arrangements, Guðbjörg Ólafsdóttir, Conference coordinator

CHAIRMAN: Sigurður Guðjónsson

9.30-9.50 Guðbjörg Ólafsdóttir
Detection and mapping of mtDNA SNPs in Arctic Charr across the species range

9.50-10.10 Lucio Marcello
A transrange assessment of the selective relevance of mtDNA SNPS

10.10-10.30 Eric Verspoor
A transrange overview of the phylogeny of the Arctic char species complex 

10.30-11.10 Coffee break

11.10-11.30 Sigríður Rut Franzdóttir
Developmental mechanisms of Arctic charr divergence

11.30-11.50 Zophonías O. Jónsson
The Charr in Thingvallavatn - Genome and epigenome sequencing

11.50-12.10 Drywa, A
Genetic differentiation of Arctic Char in Loch Rannoch: nuclear differentiation of the known morphs and substructuring of morphs into multiple breeding populations

12.10-12.30 Ólafur Sigurgeirsson
SWOT- analysis of Icelandic Arctic charr culture

12.30-13.30 Lunch break

CHAIRMAN: Eric Verspoor

13.30-13.50 Jóhannes Guðbrandsson
Extensive genetic divergence between sympatric Arctic charr morphs in Lake Thingvallavatn

13.50-14.10 Jónína Herdís Ólafsdóttir and Kalina Hristova
Pre-zygotic mechanisms of reproductive isolation in Thingvallavatn Arctic charr

14.10-14.30 Samantha V. Beck
Harnessing the power of maternal effects for increasing the adaptive potential of a single population through developmental processes 

14.30-15.00 Coffee break

15.00-15.20 Bjarni K. KristjánssonThe evolution of phenotypic diversity in Arctic charr

15.20-15.40 Arnar PálssonPopulation subdivision and genetic differences among anadromous Arctic charr in Iceland

15.40-16.00 Guðni Guðbergsson and Ingi Rúnar JónssonStatus of Arctic charr in Iceland

16.00-16.30 Open discussion

16.00-18.00 Poster session and welcoming reception at the Marine and Freshwater Research Institute, Skulagata 4, 101 Reykjavík.

Wednesday, 1 of November 2017.

CHAIRMAN: Sten Karlsson

9.00-9.20 Erik Jeppesen
Food-web studies in salmonid lakes in Greenland, Iceland and the Faroe Islands

9.20-9.40 Gustav Hellström
Comparing behavior and habitat preferences between Arctic Charr and Lake Charr in a mountain lake

9.40-10.00 Helgi Thorarensen
The effect of climate change on Arctic charr populations in Iceland - A physiologist perspective

10.00-10.20 Stefán Ó. Steingrímsson
Various part activity patterns in wild stream-dwelling Arctic char

10.20-11.00 Coffee break

11.00-11.20 Jón Kjartan Jónsson
Challenging the farming of Arctic Charr

11.20-11.40 Ingeborg Mulder

Within lake winter movement patterns of anadromous Arctic charr in Labrador lakes

11.40-12.00 Michael Power

A retrospective of Arctic charr otoliths: what have we learned about temperature use?

12.00-12.30 Open discussion and closing

EN