Blar i Published in cooperation with others på emneord "gear experiments"
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Operating Experiences with an ultrasonic current meter
(ICES CM Documents;1974/C:29, Working paper, 1974) -
Optimization of purse seines by large meshed sections and low lead weight. Theoretical considerations, sinking speed measurements and fishing trials.
(ICES CM Documents;1988/B:25, Working paper, 1988)Theoretical considerations on material requirements and sinking speed by use of different mesh size and lead weight in purse seines are outlined. Measurements confirmed that the sinking speed varied with mesh size and ... -
Optimum size of sampling unit for estimating the density of marine populations
(ICES CM Documents;1989/D:22, Working paper, 1989)Data from several trawling experiments and from some scallop dredge surveys indicate that, within limits, a srnaller sampling unit can be more effective than a larger unit for marine abundance surveys. Taking into account ... -
Performance of an acoustic sonde design
(ICES CM Documents;1994/L:30, Working paper, 1994)The potential of multi-frequency acoustic technology for quantifying fish and plankton is widely recognized. At a U.S. GLOBEC workshop in 1991, one of the considered problems was measuring macrozooplankton and micronekton. ... -
Preliminary results from tests using a high-frequency sonar as trawl-sonde
(ICES CM Documents;1986/B:37, Working paper, 1986)A high-frequency, short-range sonar is tested for trawl-geometry measurements on pelagic and bottom trawls. The sonar was operated on a standard, coaxial trawl sonde cable, and produced excellent images of the trawl ... -
Preliminary results of investigations on escapement of fish under the fishing line of a Norwegian sampling trawl
(ICES CM Documents;1986/B:30, Working paper, 1986)The Institute of Marine Research, Bergen, has carried out combined bottom trawl and acoustic surveys for cod and haddock in the Barents Sea and the Svalbard areas since 1981. These investigations have clearly demonstrated ... -
Preliminary results of saithe tagging experiments on the Norwegian coast 1975-77
(ICES CM Documents;1981/G:35, Working paper, 1981)In 1975-77, 18 942 saithe were tagged on the Norwegian coast, a continuation of a tagging program which started in 1972. The results confirm the migration pattern indicated by experiments in 1970-74. There is a substantial ... -
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 ... -
Relationships between the geometric dimensions and biomass of schools
(ICES CM Documents;1990/B:41, Working paper, 1990)Acoustic measurements of the geometric dimensions and packing density of herring, sprat and saithe schools have been conducted by multi-beam sonars and echo integrator systems. Relationships between the reflected echo ... -
Report from FTFB Subgroup: Evaluation of sources of variability in the fishing power of the GOV trawl
(ICES CM Documents;1992/B:39, Working paper, 1992) -
Report of meeting on fishing effort measurement, Ijmuiden 7-8 May 1973
(ICES CM Documents;1973/B:4, Working paper, 1973) -
Report of the Ad Hoc Working Group on Artificial Bait and Bait Attractance [Hirtshals, Denmark, 2 -4 May, 1984]
(ICES CM Documents;1984/B:7, Working paper, 1984) -
Report of the ICES-FAO Working Group on Fishing Technology and Fish Behaviour (WGFTFB) [20- 23 April, 2004, Gdynia, Poland]
(ICES CM Documents;2004/B:5, Working paper, 2004) -
Report of the International North Sea, Skagerrak and Kattegat Bottom Trawl Survey Working Group [Copenhagen, 26 February - 1 March, 1990]
(ICES CM Documents;1990/H:3, Working paper, 1990) -
Report of the Study Group on Grid Sorting Systems in Trawls, Beam Trawls, and Seine Nets [Woods Hole, USA, 13- 14 April, 1996]
(ICES CM Documents;1996/B:1, Working paper, 1996) -
Report of the Study Group on Mesh Measurement Methodology [Ijmuiden, The Netherlands, 8- 9 April, 2000]
(ICES CM Documents;2000/B:2, Working paper, 2000) -
Report of the Study Group on Mesh Measurement Methodology [Ostend, Belgium, 19- 21 March, 2003]
(ICES CM Documents;2003/B:2, Working paper, 2003) -
Report of the Study Group on Mesh Measurement Methodology [Seattle, USA, 21- 22 April, 2001]
(ICES CM Documents;2001/B:1, Working paper, 2001) -
Report of the Study Group on Mesh Measurement Methodology [Sète, France, 3- 5 June, 2002]
(ICES CM Documents;2002/B:2, Working paper, 2002) -
Report of the Study Group on Survey Trawl Gear for the IBTS Western and Southern Areas (SGSTG) [11- 13 February, 2004, Santander, Spain]
(ICES CM Documents;2004/B:1, Working paper, 2004)