Reports

Seasonal variation of fatty acid composition of cod flesh

Published:

01/03/2012

Authors:

Kristín Anna Þórarinsdóttir, Helga Gunnlaugsdóttir, Jónas R. Viðarsson, Sigurjón Arason

Supported by:

Fisheries Project Fund

Seasonal variation of fatty acid composition of cod flesh

The report summarizes the results of measurements of the chemical content of the liver and cod muscles according to the season and fishing area. The results indicate that seasonal fluctuations in muscle fat content are relatively small. Another issue is the liver, its fat content was found to be lowest in the latter part of winter and in spring. At the same time, the water content was highest. Changes in the chemical composition of the liver were thought to be related to the fluctuations in the behavioral patterns and physical activity of the fish around spawning.

The report summarizes the results from measurements on chemical composition of liver and muscle of cod as affected by fishing grounds and seasonal variation. The results indicate that seasonal fluctuations in fat content of the muscle are relatively low. On the contrary, fat and water content in liver, varied with season. The fat content was lowest late winter and in spring. At the same time, the highest water content in liver was observed. These changes were explained by changes in behavior and physiological functional of the fish in relation to the reproductive cycle.

View report

Reports

Utilization of slag with regard to environmental impact

Published:

01/03/2012

Authors:

Ragnheiður Sveinþórsdóttir, Hólmfríður Hartmannsdóttir, Ólafur Ögmundarson

Supported by:

Fisheries Project Fund

Utilization of slag with regard to environmental impact

The aim of the project was to investigate whether the marine environment is utilizing the slag that fishing vessels throw into the sea when fish are gutted on board, also to investigate whether the slag can be utilized profitably and whether it has a more positive effect on nature. The results are that the amount of slag that was released in the experiment anywhere during the experiment and therefore the project fulfilled its goals. However, more research is needed in this area to be able to estimate how much the ocean can absorb without causing problems with organic eutrophication.

View report

News

Matís invites students to visit

Tomorrow, Friday 2 March at 16-18, Matís invites university students to visit Vínlandsleið 12 in Grafarholt.

University students and those who intend to pursue a master's or doctoral program can familiarize themselves with Matís 'activities and how the studies can be linked to fun and demanding projects at Matís and Matís' partners.

The advertisement for the homecoming can be found here.

News

The collaboration between Náttúrustofan and Matís brings new ideas

The collaboration between Náttúrustofa Vestfjarði and Matís for research on the environmental issues of the coastal sea has undoubtedly resulted in new thoughts and approaches, according to Þorleif Eiríksson, director of Náttúrustofa Vestfjarði.

Þorleifur says in a conversation with Útvegsblaðið that the collaboration shows the possibilities inherent in cluster collaboration such as the Icelandic Ocean Cluster.

The research collaboration between Náttúrustofa Vestfjarði and Matís has ranged from observations of optimal locations for aquaculture to what happens to organic residues such as eutrophication of bottom and sea. The collaboration began when Náttúrustofa Vestfjarði came to Matís' research regarding experiments with using light to delay the maturation of cod. Náttúrustofan also participated in Matís' study of the environmental aspects of aquaculture that the company worked on with aquaculture companies in the Westfjords.

Due to the collaboration, Náttúrustofa Vestfjarði has been able to increasingly develop various theories that can be generalized! from. The research has also produced results that are more useful to aquaculture than narrow service research. "Since then, our collaboration has enabled Náttúrustofa Vestfjarði to move to pure academic basic research on the environmental issues of coastal waters in addition to consulting and service research for individual companies. Among other things, we have conducted research on what happens to organic excesses that are released into the environment and their impact on the marine environment. That project has developed into our largest collaborative project, "says Þorleifur to Útvegsblaðið.

New ideas and approaches have emerged as a result of the collaboration. "When it comes to our projects, the main thing is to work on research that promotes environmentally friendly aquaculture. The research has since developed into larger projects where we are trying to understand these environmental issues in a larger whole. We were completing a basic research project we call “Biosphere Life! a. "This is a basic study of the tolerance limits of Icelandic fjords for organic pollution."

According to Þorleif, other research has been carried out in collaboration with Matís, for example on the development of breeding pens and what attachments are attached to the pens. Náttúrustofa Vestfjarði, in collaboration with Matís, is working on examining the combination of cod and mussels, but it is too early to report those results.

This news is published on Bæjarinn Besta's website, www.bb.is (asta (at) bb.is)

News

How is your company doing regarding microbiological standards?

In December 2011, Matvælastofnun issued a draft guideline on microbiological criteria based on the provisions of European Regulation (EC / 2073/2005), which has entered into force in Iceland.

It is clear that the guidelines are asking for increased sampling in food production at most food companies in order to verify that the methods used to prevent dangers are yielding the desired results.

Matís runs the largest accredited food laboratory in the country and works with numerous food companies, large and small, around the country. We offer measurements according to the needs of individual companies and can also provide advice and assistance with sampling and the preparation of sampling plans.

Please contact Franklín Georgsson at 422-5000 or 858-5040 or at profun@matis.is.

Matís employs experts with extensive experience and knowledge in all areas of food production. We can therefore also offer food companies comprehensive services and advice tailored to the needs of each customer. These include services regarding:

  • Interpretation of measurement results with respect to regulatory criteria
  • Consulting and assistance with the installation and maintenance of quality manuals and quality systems
  • Advice on food processing, hazard analysis of processing and minimization of risk during processing and distribution
  • Evaluating the effectiveness of cleaning and disinfection measures and ways to improve

We invite companies to contact Margeir Gissurarson at tel. 422-5000 or 858-5093, but you can also send inquiries to the e-mail address radgjof@matis.is.

News

University Day 2012! New emphases in the master's program in food science

During the university day, Icelanders are invited to visit the country's universities and see and see with their own eyes and ears what is on offer in the schools. The program includes countless events, presentations and events that show science in a colorful and vibrant light.

The University of Iceland offers presentations on numerous study programs. For example, there will be presentations on food science, nutrition and a new master's program in food science. Matís is a participant along with others in the new master's program in food science.

Further information about the new master's program can be found here.

During the university day, visitors can get acquainted with the university's diverse range of courses, both undergraduate and graduate studies, activities and services, visit laboratories, equipment, facilities and premises. There will be scientists and students from all departments of the school answering questions about everything between heaven and earth - or as close as possible. Student counselors give good advice and the multifaceted services and colorful social life that is available to students at the University of Iceland will be introduced.

The University of Iceland presents all studies in Main building, Háskólatorg, Askja and will also have science exhibitions in University Cinema. Háskólabíó will also feature the University of Akureyri, Hólar University, Hólar, the Agricultural University of Iceland, the Iceland Academy of the Arts, Keilir and Nordic universities with a presentation of their studies.

There will also be the nationally famous The bombing rate of the University of Iceland with colorful displays and University of Iceland Science Center will be opened in the lobby of Háskólabíós in a formal way.

Reykjavík University will present its study programs in Nauthólsvík, but the Iceland Academy of the Arts will also be there at the University Cinema.

home page University Day.

News

Matís Annual Report 2011

Matís 2011 annual report has now been published. Special emphasis was placed on international co-operation in a recent report. of the year

The report can be accessed here.

News

Winners of a survey on attitudes to health claims

Today, the submitted answers to the survey were reduced and there were a total of five winners, and each one will receive a gift certificate worth ISK. 5000.

Winners are as follows:

 Code
 5hm2c
 7rdfw
 Ygsbz
 m6zwt
 ahzmr 

Winnings can be visited in the Matís reception at Vínlandsleið 12, 113 Reykjavík between 08-16 every working day.

For further information Kolbrún Sveinsdóttir.

News

Provides advice on the development of fish feed in Chile

Jón Árnason, feed scientist and project manager at Matís, has for several years been a member of the development committee of one of Chile's largest fish feed producers, Salmofood SA. The company is majority owned by Icelandic aquaculture companies and produces about 60 thousand tons of feed per year.

The development committee includes representatives of the company that manages its production, two representatives of Nofima in Norway, which is one of the largest companies in the world in the field of fish feed research and education, and Jón, who represents Matís. He says that his participation in this work in Chile is indisputably a great recognition of the knowledge that has been built up in this country in recent years in the development and production of feed for aquaculture.

"It started when I was approached about 10 years ago for participation in this job, but then I worked at Fóðurverksmiðjan Laxá hf. Since then we have met regularly in workshops in Chile and this long time underlines that the company has considered itself to have valuable knowledge for development in its feed production with less experience from Iceland, "says Jón in a conversation, but both the committee has worked with information on fish nutrition. , the composition of the feed and factors related to increased efficiency in feed production.

"Our work has brought about changes that have strengthened this company in competition and thereby strengthened the position of the owners, who are primarily fish producers in Chile. The production there is primarily Atlantic salmon, Pacific salmon and rainbow trout, so the feed development must be based on these species, "says Jón, but the development committee usually meets twice a year in Chile and works continuously for a week at a time.

"We review all the latest in feed science, discuss specific issues that may have arisen in the fire or production, review quality issues and we also do a lot of visiting the company's customers in Chile and talking directly with them. In my opinion, participation in this work is very valuable for us at Matís and Icelandic aquaculture. Both to keep up to date with the latest news at the moment, but also to form relationships with parties such as Nofima in Norway. Within the walls of that company, there are leading parties in aquaculture and feed production and it is important to create a good connection with them, "says Jón.

Further information: Jón Árnason

News

Quality management training for students from developing countries

Since the United Nations University's Fisheries University was established in Iceland almost 11 years ago, Matís has been teaching in the university's quality management department. Margeir Gissurarson, Matís' project manager, is in charge of the teaching, which involves many of the company's employees and from different fields.

"There are usually groups of about 20 people who come to us for quality management studies and some of them then continue their work with us on their final projects which are then related to quality management and processing of fish," says Margeir.

The quality management course at Matís lasts for about five months. The first part is an introduction to the quality, safety and processing of seafood, followed by students' choice of specialties and projects. Supervisors in them then come from Matís.

"Those students who have done well with us often go on to master's and doctoral studies at the University of Iceland or universities in other countries, but these are all students who come from developing countries. The connections that have been created through our work for the United Nations Fisheries Academy are important for both Iceland in the future and our company. After all, Matís has received projects in these countries directly through connections to the United Nations University of Fisheries as well as our former students. Examples include seminars in Uganda and Kenya. There is no doubt that it is a great benefit for Iceland to connect with developing countries in this way in the field of fisheries, because with few exceptions, these students return to public administration positions in their home countries, "says Margeir.

Further information: Margeir Gissurarson

EN