Browsing Brage IMR by Subject "VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fisheries technology: 924"
Now showing items 201-220 of 725
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Hull mounted, protruding transducer for improving echo integration in bad weather
(ICES CM documents, Working paper, 1990)A 38 kHz split beam survey transducer has been mounted on the tip of a 4 m vertical protrusile stabilizing keel of the United States NOAA fishery research vessel R/V Miller Freeman. Air blocking problems, generally ... -
Hull mounted, protruding transducer for improving echo integration in bad weather
(ICES CM Documents;1990/B:31, Working paper, 1990)A 38 kHz split beam survey transducer has been mounted on the tip of a 4 m vertical protrusile stabilizing keel of the United States NOAA fishery research vessel R/V Miller Freeman. Air blocking problems, generally ... -
Hvordan få til ansvarlig slipping fra not
(Havforskningsnytt;Nr. 7 - 2012, Working paper, 2012)Dersom makrell og sild trenges for hardt under notfiske, dør mye av fisken etter en stund selv om den slippes. Skal fisken overleve, må den slippes i en tidlig fase og på en ansvarlig måte. Her kommer forslag om hva som ... -
ICES coordinated acoustic survey of ICES divisions IIIa, IVa, IVb AND Via (North) 2002 Results and long term trends
(ICES CM documents, Working paper, 2003)Six surveys were carried out during late June and July covering most of the continental shelf north of 54oN in the North Sea and to the west of Scotland to a northern limit of 62oN. The eastern edge of the survey area ... -
ICES herring tagging experiments in 1957 and 1958
(ICES CM Documents;1960/6, Working paper, 1960) -
Ikke noe ekstra til seismikkforskning [Ole Arve Misund uttaler seg om budsjettet]
(Others, 2008-10-08) -
Image analysis at the Institute of Marine Research, Norway
(ICES CM Documents;1993/L:75, Working paper, 1993)Computer-aided analysis of images is a technology gaining importance and utilization in marine science. Whereas analyses by eye are often tedious, slow and inaccurate, state-of-the-art image analysis is rapid, accurate, ... -
Improved calibration of hydroacoustic equipment with copper spheres
(ICES CM Documents;1981/B:20, Working paper, 1981) -
In situ determination of bottom trawl ground gear contact
(ICES CM documents, Working paper, 2001)Exact definition of towed distance with proper ground gear contact is an essential parameter in bottom trawl swept area estimates of fish abundance. Errors in this key parameter may lead to a first order bias in abundance ... -
In situ of Cape horse mackerel (Trachurus capensis)
(ICES CM Documents;1999/J:4, Working paper, 1999)The acoustical target strength (TS) of Cape horse mackerel (Trachurus capensis) was measured in situ at 38 kHz using a submersible split beam transducer in combination with a SIMRAD EK 500 echosounder. The transducer ... -
In/out-flow of coastal water in Vestfjorden
(ICES CM Documents;1978/C:51, Working paper, 1978)Hydrographic sections in Vestfjorden, Northern Norway, during winter 1977 showed strong horizontal temperature gradients on the west side of the fjord indicating an outflow of cold coastal water. Analysis of sea thermograph ... -
Inclined water flow and its applications for reduced bycatch in shrimp trawls
(IMR/PINRO Joint Report Series, Conference object, 2001)The use of the Nordmøre grid in the Pandalus fishery has significantly reduced the bycatch of finfish. Grids operate on physical separation based on size to achieve bycatch reduction. However, problems arise when the size ... -
Inclined water flow and its applications for reduced bycatch in shrimp trawls
(IMR/PINRO Joint Report Series, Conference object, 2001)The use of the Nordmøre grid in the Pandalus fishery has significantly reduced the bycatch of finfish. Grids operate on physical separation based on size to achieve bycatch reduction. However, problems arise when the size ... -
Industrial Fisheries Working Group [ICES headquarters, 23 February -1 March, 1983]
(ICES CM Documents;1983/Assess:7, Working paper, 1983) -
Instituttets infrastrukturprosjekt Sea2Data
(Conference object, 2010-11-03) -
Intensive production of cod fry systems and results so far
(ICES CM Documents;1983/F:24, Working paper, 1983) -
Inter-calibration of participating vessels in the ICES coordinated surveys of North Sea herring
(ICES CM Documents;1998/OPEN:23, Working paper, 1998)Summary: Three pairwise acoustic inter-calibrations of the performance of EK500 scientific echosounders were carried out in July 1997. The first inter-calibration was carried out at about 57 40'N by OE by GO Sars and ... -
Intercalibration of acoustic systems onboard R/V "Johan Hjort" and R/V "Pinro"
(ICES CM Documents;1992/B:17, Working paper, 1992)Inter-ship calibration is a comparison between integrator output of two or more ships sailing over the same fish aggregations. Although it is a relative measurement, it is highly desireable whenever research vessels ... -
Intercalibration of the analytical method for alkylphenols in produced water
(Rapport fra Havforskningen;Nr.5-2010, Working paper, 2010-05)Fire laboratorier fra Norge og USA deltok i ringtest-undersøkelse av kjemisk analytisk metode for bestemmelse av alkylfenoler i produsert vann. Det var bra samsvar mellom resultatene fra to av laboratoraiene mens metodiske ...