ICES CM documents authored by IMR scientists (1949-2011): Nye registreringer
Viser treff 1081-1100 av 3138
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Cylindrical sonar design for fish echo surveying
(ICES CM Documents;1988/B:3, Working paper, 1988)Most applications of echo integration involve use of a fixed single-beam transducer that is rather narrow and downwards-oriented. It is often desired to sense fish in other directions, for example, to assess components ... -
New towed transducer concept
(ICES CM Documents;1988/B:59, Working paper, 1988)The history of towed transducer applications at the Institute of Marine Research, Bergen, is reviewed. Advantages and disadvantages of several designs are summarized. To improve performance significantly, a new system ... -
Report of the Industrial Fisheries Working Group [Copenhagen, 23 -29 March, 1988]
(ICES CM Documents;1988/Assess:15, Working paper, 1988) -
Report of Norwegian blue whiting survey, spring 1988
(ICES CM Documents;1988/H:36, Working paper, 1988)During the period 25 March - 24 April 1988, the blue whiting stock was surveyed in the spawning area west of The British Isles. It was found distributed along the continental slope, but this year a greater part was also ... -
Report of the Working Group on North Atlantic Salmon [Copenhagen, 21 -31 March, 1988]
(ICES CM Documents;1988/Assess:16, Working paper, 1988) -
Acoustic measurements of schooling herring. Estimation of school biomass and target strength
(ICES CM Documents;1988/B:26, Working paper, 1988)The connections between reflected echo energy and dimensions of fatty herring schools were studied by a combination of multibeam sonar and a calibrated echo integration unit. A relation between the area and the biomass ... -
A multiple approach to behaviour studies of salmon reared in marine net pens
(ICES CM Documents;1988/F:15, Working paper, 1988)The behaviour of Atlantic salmon in culture was lnvestigated by various techniques with the ultimate goal of characterlzing the behaviour typical for a situation with rapid growth. Differences in behaviour between and ... -
The killing of the north-east Atlantic plankton feeders: Man the murderer or accessory to the crime?
(ICES CM Documents;1988/H:59, Working paper, 1988) -
Report of the North Sea Roundfish Working Group [Aberdeen, UK, 18 -29 April, 1988]
(ICES CM Documents;1988/Assess:21, Working paper, 1988) -
Report of the Marine Chemistry Working Group [The Hague, Netherlands, 7 -11 March, 1988]
(ICES CM Documents;1988/C:1, Working paper, 1988) -
Production experiment of halibut fry (Hippoglossus hippoglossus) in silos
(ICES CM Documents;1987/F:42, Working paper, 1987)Silos with conical bottoms and a volume of approx 3.5 m3 are tested as storing units for halibut yolk-sac larvae. The silos were run in three different ways: A: Stagnant water with a saltplug till day 10 and later slow ... -
Explotation and state of stock
(ICES CM Documents;1988/H:57, Working paper, 1988) -
Report of the Working Group on Environmental Assessment and Monitoring Strategies [Norrköping, Sweden, 2 -5 May, 1988]
(ICES CM Documents;1988/E:28, Working paper, 1988) -
The effects of oil-base drilling mud and crude oil on demersal fish eggs
(ICES CM Documents;1988/E:19, Working paper, 1988)The Norwegian spring spawning herring and the Barents Sea capelin both with demersal eggs, spawn in relative small and concentrated areas on the Norwegian continental shelf. Besides potential impact on the fish resources ... -
Catch comparison between rockhoppers and bobbins ground gear on the Norwegian bottom sampling trawl
(ICES CM Documents;1988/B:31, Working paper, 1988)In a study aimed at improving the reliability of the Norwegian bottom sampling trawl, comparative fishing between standard bobbins gear and rockhopper ground gear were carried out in the Barents Sea. The catch ratios ... -
Target strengths of Antartic krill (Euphausia superba)
(ICES CM Documents;1988/B:6, Working paper, 1988)Encaged aggregations of swimming krill have been measured at 38 and 120 kHz. The results indicate that the target strength values are substantially lower than previously assumed. -
Report of the Working Group on Harmful Effects of Algal Blooms on Mariculture and Marine Fisheries [Lisbon, 11 -13 April, 1988]
(ICES CM Documents;1988/F:33, Working paper, 1988) -
Sonar observations of schooling mackerel during purse seining
(ICES CM Documents;1988/B:27, Working paper, 1988)The swimming behaviour and horizontal dimensions of mackerel schools have been quantified by use of a multibeam, true motion sonar during purse seining in the Northern North Sea, August 1986. The horizontal dimensions ... -
Report of the Working Group on Mass Rearing of Juvenile Marine Fish to the Mariculture Committee of ICES [Brest, France, 24 -26 June, 1987]
(ICES CM Documents;1987/F:36, Working paper, 1987) -
Report of the ICES Working Group on Pathology and Diseases of Marine Organisms [Brest, France, 22 -25 April, 1987]
(ICES CM Documents;1987/F:49, Working paper, 1987)