Browsing Brage IMR by Author "Ervik, Arne"

AkvaVis - dynamisk GIS-verktøy for lokalisering av oppdrettsanlegg for nye oppdrettsarter : miljøkrav for nye oppdrettsarter og laks

Ervik, Arne; Agnalt, Ann-Lisbeth; Asplin, Lars; Aure, Jan; Bekkvik, Tor Christian; Døskeland, Inge; Hageberg, Anne Ansnes; Hansen, Tom; Karlsen, Ørjan; Oppedal, Frode; Strand, Øivind (Fisken og havet, Research report, 2008)

AkvaVis is a dynamic GIS tool for siting fish farms, and this report describes a prototype version for mussel farms. AkvaVis combines mappable characteristics such as depth, currents and distance from other objects, and ...

Brukerveiledning og miljøstandarder for overvåkningsprogram i oppdrett MOM (modellering - overvåkning - matfiskeanlegg)

Ervik, Arne; Hansen, Pia Kupka; Aure, Jan; Johannessen, Per; Jahnsen, Terje; Schaaning, Morten (Fisken og havet, Research report, 1995)

MOM (Monitoring-Ongrowing fish farms-Modelling) is a management system which can relate the environmental impact from fish farms to the holding capacity of a site. The holding capacity is defined as the sediments ability ...

Bunndyrenes betydning for omsetning av organisk stoff fra akvakultur

Ervik, Arne; Klovning, Jorunn; Hansen, Pia Kupka (Rapport fra senter for havbruk;1993 Nr. 20, Working paper, 1993)

Bæreevne i norsk akvakultur – CANO : Carrying Capacity in Norwegian Aquaculture – CANO

Ervik, Arne; Hansen, Pia Kupka; Strand, Øivind; Agnalt, Ann-Lisbeth (Havforskningsnytt, Working paper, 2009)

In aquaculture the carrying capacity may be defined as the maximum amount of an aquaculture organism that can be produced in an area without the environmental effects exceeding accepted levels. The CANO project will ...

Bæreevne i oppdrett – en definisjon : Carrying capacity in fish farming

Ervik, Arne; Hansen, Pia Kupka (Havforskningsnytt, Working paper, 2009)

We define the carrying capacity of a site or area used for aquaculture as the maximum quantity of fish or shellfish that can be farmed there without the environmental impacts exceeding agreed tolerance limits. These limits ...

Case histories and new approaches to planning and modelling for Norwegian mariculture

Ervik, Arne; Hansen, Pia Kupka (ICES CM Documents;1994/F:26, Working paper, 1994)

To promote a sustainable mariculture industry the environmental impact of the individual fish farm must be adjusted to the holding capacity of the site. The present regulation systems seems insufficient in achieving this. ...

Concept and edition of monotoring programme 1997

Hansen, Pia Kupka; Ervik, Arne; Aure, Jan; Johannessen, Per; Jahnsen, Terje; Stigebrandt, Anders; Schaaning, Morten (Fisken og havet, Research report, 1997)

MOM is a system that can be utilised to regulate the environmental impact of aquaculture plants on the basis of the holding capacity of their sites. The system consists of a standardised monitoring programme with a set ...

Effects of organic waste from marine fish farms on the seabottom beneath the cages

Hansen, Pia Kupka; Ervik, Arne; Pittman, Karin (ICES CM Documents;1990/F:34, Working paper, 1990)

Seven fish farms and a control station were investigated four times during one year. The farms represented a gradient of increasing accumulation of organic waste on the sea bottom. The thickness and the organic content ...

Effekter av fiskeri og havbruk på bunn og bunnfauna: Oppfølging og forslag til nye forvaltningstiltak

Buhl-Mortensen, Lene; Aglen, Asgeir; Breen, Michael; Buhl-Mortensen, Pål; Ervik, Arne; Husa, Vivian; Løkkeborg, Svein; Røttingen, Ingolf; Stockhausen, Hans Hagen (Fisken og Havet;2-2013, Research report, 2013-02-20)

Rapporten gir en beskrivelse av fiskeredskaper brukt i norske fiskerier som berører bunn. Berørte områder og grad av eksponering beskrives i rapporten. Bunntrål etter fisk og reker er den redskapstypen som har størst effekt ...

Environmental effects of marine Norwegian fish farms

Ervik, Arne; Johannessen, Per; Aure, Jan (ICES CM Documents;1985/F:37, Working paper, 1985)

Sedimentation rates under fish farms may be very high, and high levels of fish stock may lead to harmful accumulation rates of the nutrient salt ammonia. The environmental effects of the organic load range from minor ...

Hardangerfjorden - produksjon av laksefisk og effekter på de ville bestandene av laksefisk

Otterå, Håkon; Skilbrei, Ove; Skaala, Øystein; Boxaspen, Karin; Aure, Jan; Taranger, Geir Lasse; Ervik, Arne; Borgstrøm, Reidar (Fisken og havet, Research report, 2004)

Wild populations of salmon and seatrout in the Hardanger Fjord show significant declines in recent years.The report also describes the hydrographical conditions and the aquaculture production of salmonids in the fjord. The ...

Hardangerfjorden under lupa; Interaksjonar mellom økosystem, akvakultur og bereevne og klimaendringar

Skaala, Øystein; Sjøtun, Kjersti; Husa, Vivian; Falkenhaug, Tone; Kvamme, Cecilie; Bjelland, Otte; Asplin, Lars; Buhl-Mortensen, Pål; Hansen, Pia Kupka; Ervik, Arne (Havforskningstema;Nr.1-2009, Working paper, 2009)

Havbruksrapport 2003

Ervik, Arne; Kiessling, Anders; Skilbrei, Ove; van der Meeren, Terje (Fisken og havet, særnummer;3-2003, Research report, 2003-02)

Havbruksrapport 2004

Agnalt, Ann-Lisbeth; Ervik, Arne; Kristiansen, Tore S.; Oppedal, Frode (Fisken og havet, særnummer;3-2004, Research report, 2004-02)

Impact of administering antibacterial agents on wild fish and blue mussels Mytilus edulis in the vicinity of fish farms

Ervik, Arne; Thorsen, B.; Eriksen, V.; Lunestad, Bjørn Tore; Samuelsen, Ole Bent (Journal article; Peer reviewed, 1994-01-27)

Using high-performance liquid chromatography, residues of the quinolones oxolinic acid and flumequine have been quantified in muscle of wild fish. The fish were caught 0 or 1 d after terminating medication in the vicinity ...

Konsekvensutredning av regionale miljøvirkninger av et framtidig økende fiskeoppdrett i Norge

Ervik, Arne; Aure, Jan; Skjoldal, Hein Rune; Alvsvåg, John (Research report, 2005-02)

Utredningen er laget på oppdrag fra SFT. Den gir en kortfattet vurdering av regionale (fylkesvise) miljøvirkninger av utslipp av næringssalter og organisk stoff ved økt oppdrettsaktivitet. Beregningene tar sikte på å skalere ...

LENKA - A nation-wide analysis of the suitability of the Norwegian coast and watercourses for aquaculture. A coastal zone management program

Pedersen, Tom N.; Aure, Jan; Berthelsen, Bjørn; Elvestad, Siri; Ervik, Arne; Kryvi, Håkon (ICES CM Documents;1988/F:11, Working paper, 1988)

A coastal zone management program called LENKA was started in 1987 and is to be terminated in 1989. The aim is to make an efficient and standardized tool for coastal zone planning, which, pertaining to law, is the ...