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Reports - 2016

Flume tank testing of a multiple inner-paneled trawl to reduce loss and clogging of small organisms

(Report from IMR no. 5-2016).  Trawl catch data from surveys is used towards stock assessments and ecological studies with the general assumption that the trawl efficiency is the same between hauls and between years. In 2012, trials conducted with the Deep Vision stereo camera system mounted in the Harstad survey trawl indicated that individuals were meshed prior to the codend, with high numbers of previously meshed individuals entering the codend at the surface during haul back. (Underwood et al, 2014).

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Healt surveillance of the flat oyster populations in Aust-Agder county, southern Norway in the period 2009 - 2015 (Rapport fra Havforskningen nr. 11-2016)

Norwegian populations of European flat oysters, Ostrea edulis, have been considered free from notifiable diseases. In 2006, microcells resembling the oyster parasite Bonamia sp. were observed during histopathological examination of tissue specimens of flat oysters, Ostrea edulis from the Arendal area, southern Norway.

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Mackerel behaviour and seismic signals - a pilot net pen study (Report from IMR no. 19-2016)

A pilot study to investigate behavioural changes induced by sound exposure for mackerel was conducted in October 2015 at Austevoll research station. The main objective was to test the experimental set up, and secondly to study differences in reactions towards different sound components of a seismic signal.
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Antarctic krill and ecosystem monitoring survey at South Orkney Islands in 2016 (Report from IMR no. 20-2016)

The Institute of Marine Research commenced in year 2011 an annual krill monitoring survey by utilizing fishing vessels, offered free of charge by the Norwegian krill fishery industry, as research platforms. This report presents the outcome from the sixth of the annual survey seasons (2016) off the South Orkney Islands. The vessels used were “La Manche” and “Saga Sea” (both owned by Aker Biomarine ASA).
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The surveillance and control programme for bonamiosis and marteiliosis in European flat oysters, Ostrea edulis, and blue mussels, Mytilus sp. in Norway in 2015 (Report from IMR no. 23-2016)

In 2015, the surveillance programme for bonamiosis and marteiliosis in European flat oysters and blue mussels was revised. This report briefly gives an overview of the present situation, sampling strategy, results from 2015 and suggestion for the 2016 sampling.

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Ocean sustainability under global change (Report from IMR no. 36–2016)

TOP PRIORITIES FOR NORWEGIAN RESEARCH AND PROSPECTS FOR COLLABORATION
Results from the IMBER-Future Earth Norway workshop 1–2 September 2016, Bergen, Norway

In September 2016, the Integrated Marine Biochemistry and Ecosystem Research Project (IMBER, a Future Earth Core Research Project) and Future Earth Norway collaborated to convene a workshop to explore the top priorities for Norwegian marine research on ocean sustainability and prospects for collaboration with global initiatives, including Future Earth´s Oceans Knowledge-Action Network,1 over the next decade.

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Spectral sensitivity and contrast potentials for four species of cleaner fish (Rapport fra Havforskningen nr. 39-2016)

FHF-prosjekt 901146 - Kunstig lys og rensefisk: Parasitization is a big problem faced by fish farmers throughout the world. While chemical treatment is an option, a biological solution based on predation of the relevant parasite by cleaner fish is a more environmentally friendly solution and in many cases more cost effective. Salmon lice, Lepeophtheirus salmonis, are a particularly costly problem for penned salmon (see Costello, 2009).

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Cruise report «Heliotrope» (Report from IMR no. 42-2016)

A collaboration agreement between Scapeche and Institute of Marine Research (IMR) - a part of the two-year French project Pasamer, which objective is to develop an autoline fishery for hake and black scabbard. The project is based on fishing trials carried out on board “Heliotrope”, which is a former trawler that has been rebuilt and fitted with Fiskevegn automatic longline system.of IMR's role in the project is to give advice on the use of autoline in general and to assist in the development of a longline fishery targeting hake and black scabbard.

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Cruise report from CODFUN 2016114 in the Barents Sea 5-11 October 2016 (Report from IMR no. 41-2016)

The survey is part of the project “The cod – capelin interaction in the Barents Sea: spatial dynamics in predator prey overlap and functional response (CODFUN)” funded by the Norwegian Research Council (NRC project number 243676/E40). The CODFUN project was motivated by the need to update and improve the current formulation of the functional response of cod used in the capelin assessment model. (Rapporten er på engelsk)

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