How to use our heads in the fishing industry Käytetään järkeä kalateollisuudessa Hreiðar Þór Valtýsson Assistant professor, MSc fisheries biology University of Akureyri / The Marine Research Institute Borgir v/ Nordurslod, IS-600 Akureyri, Iceland [email protected]Bjarni Eiriksson MSc student fisheries sciences University of Akureyri [email protected]
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How to use our heads in the fishing industry Käytetään järkeä kalateollisuudessa
How to use our heads in the fishing industry Käytetään järkeä kalateollisuudessa. Hreiðar Þór Valtýsson Assistant professor, MSc fisheries biology University of Akureyri / The Marine Research Institute Borgir v/ Nordurslod, IS-600 Akureyri, Iceland [email protected]. Bjarni Eiriksson - PowerPoint PPT Presentation
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How to use our heads in the fishing industry
Käytetään järkeä kalateollisuudessa
Hreiðar Þór ValtýssonAssistant professor, MSc fisheries biology
University of Akureyri / The Marine Research InstituteBorgir v/ Nordurslod, IS-600 Akureyri, Iceland
1. Flashback to the age of settlement2. Fast forward to the 14th century3. The 19th century, some changes4. Semi-modern times5. Today in Dalvík - Video
Finish Fishermen Association 13.11.2007 Hreiðar Thor Valtysson The web
The most important species1. Cod – catches estimated from
10.000 to 40.000 t annually2. Greenland shark – unknown catch3. Halibut and haddock – unknown catch
Processing method– Drying stockfish most important (skreið in Icelandic) for export– Fish oil also important for export and local consumption– Curing (buying it in a pit near the waters edge for some months) of
shark important for local consumption
Finish Fishermen Association 13.11.2007 Hreiðar Thor Valtysson The web
The most important species1. Cod – estimated catches from 50.000 to 80.000 t2. Greenland shark – important until around 19103. Herring – emerging as an important species
Processing method– Drying stockfish still important in beginning– Salting becomes by far the most important method– Fish oil (Greenland shark and cod) important for
export– Some Curing, pickling and smoking– No freezing, icing or canning
Finish Fishermen Association 13.11.2007 Hreiðar Thor Valtysson The web
The main species– Mostly the same but changes in species composition
due to warming climate– Reduced importance of cod as the stock was
overfished and rebuilding the stock have so far failed
The processing methods– More freshfish, less frozen– Salted fish still important, high quality market in the
Mediterranean region– More emphazis on full utilization– Increase in fish drying, especially the heads !!!
Finish Fishermen Association 13.11.2007 Hreiðar Thor Valtysson The web
The 21st century
What parts of the fish were used => everything
Finish Fishermen Association 13.11.2007 Hreiðar Thor Valtysson The web
Heads dried
Liver processed for oil and fish meael
Fins dried
Swim bladder dried, sometimes pickled
Gonads, roe into caviar
Skin into gelatine
Stomach into skin care lotion
The flesh fresh, frozen or salted
Bones driedOtoliths thrown away
The 21st century
Video, Dalvík fish processing plant
Finish Fishermen Association 13.11.2007 Hreiðar Thor Valtysson The web
The 21st century
This trend is probably driven by scarcity.
1. Before the 20th century food from agriculture was barely enough to feed the nation and the fish was hard to get. Thus every conceivable part of both the fish and the lamb was used.
2. The 20th century was time of abundance, fish stocks were not yet overfished for most part of the century and technology allowed people to fish easily.
3. In the beginning of the 21st century the picture facing the fisheries sector is bleaker, many stocks have been overfished and capacity of the fishing fleet is much higher than the fish stocks can tolerate, thus driving the fishing sector to attempt to increase the value of the limited catch.
Finish Fishermen Association 13.11.2007 Hreiðar Thor Valtysson The web
The end
Finish Fishermen Association 13.11.2007 Hreiðar Thor Valtysson The web
• References– Arason, S. 2003. The drying of fish and utilization of geothermal energy – The Icelandic experience. GHC Bulletin, December 2003: 27-33– Jónsson, G. and Magnússon, M.S. 1997. Hagskinna – Icelandic historical statistics. Statistics Iceland.– Thor, J.Th. 2002, 2003, 2005. Saga sjavarútvegs á Íslandi, volumes I, II and III. – Kristjánsson, L. 1985. Íslenskir sjávarhættir, volume IV,