Browsing ICES CM documents authored by IMR scientists (1949-2011) by Subject "VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fisheries technology: 924"
Now showing items 101-120 of 493
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Experiments with net of hexagonal meshes in purse seine
(ICES CM Documents;1977/B:39, Working paper, 1977) -
Experiments with selective prawn trawls in Norway
(ICES CM Documents;1976/B:28, Working paper, 1976) -
Factors affecting catch of long lines, evaluated by simulation model of long line fishing
(ICES CM Documents;1983/B:4, Working paper, 1983) -
Field experiences with a new miniature vector averaging current meter
(ICES CM Documents;1991/C:20, Working paper, 1991)For several years Inst. of Marine Research Bergen has been developing miniaturized modular current meters. Thanks to major improvements in electronic component technology in recent years, a physically small current meter ... -
Field intercalibrations of echo integrator systems
(ICES CM Documents;1978/B:25, Working paper, 1978)The paper reviews intercalibrations of echo integrators carried out in 1975 - 1977 where Norwegian research vessels have participated. Analog and digital integrator performance is compared, and methods to make integrator ... -
First report of the planning group for the symposium on fisheries acoustics.
(ICES CM Documents;1980/B:10, Working paper, 1980) -
First Test Results from the New Norwegian Lidar for Monitoring of Marine Resources
(ICES CM Documents;2004/R:42, Working paper, 2004)Following promising lidar test flights in 2002, Institute of Marine Research (IMR), Bergen in cooperation with NTNU University, Trondheim started the process of designing and building a new lidar to be ready by summer ... -
Fish beahaviour studies as an aid to cod and haddock longline hook design.
(ICES CM Documents;1979/B:22, Working paper, 1979)The evolution of the fishing hook to the present form has been very gradual, and only slight alterations have been made since metals became available as material for hooks. This may indicate that the form is close to ... -
Fish behaviour during sampling as observed from free floating buoys - application for bottom trawl survey assessment
(ICES CM documents, Working paper, 1999)Varying fish distribution and behaviour during bottom trawl surveys has long been considered important for the reliability of survey abundance estimates. Size and species dependent behaviour may bias the estimates and ... -
Fish behaviour in relation to long lines observed by TV
(ICES CM Documents;1976/B:38, Working paper, 1976) -
Fisheries-induced evolution of body size and other life history traits: the impact of gear selectivity
(ICES CM documents;2008/F:07, Working paper, 2008) -
Fishing experiments with an alternative longline bait based on nylon bags
(ICES CM Documents;1987/B:19, Working paper, 1987)This report describes two fishing trials using an alternative longline bait, one in the fishery for torsk and ling, the other in the fishery for cod and haddock. A bait based on fine-meshed nylon bags as reinforcement ... -
Full scale fishing trials for tusk (Brosme brosme) and cod (Gadus morhua) with a collapsible fish trap
(ICES CM Documents;1988/B:33, Working paper, 1988)A collapsible fish trap with low weight and low stacking volume has been developed and tested in full scale fishing operations. The catch rates of tusk were promising, while the catches of cod were too low and variable ... -
Full scale tests of improved longline gear
(ICES CM Documents;1985/B:45, Working paper, 1985)A new type of bottom set longline was tested in trials during the cod fishery off Finnmark November-December 1984. This gear differed from traditional longloine, by being rigged with swivel-mounted monofilament gangions ... -
Fullscale experiments with a new midwater 3-foil type and standard Waco and süberkrüb otterboards.
(ICES CM Documents;1979/B:25, Working paper, 1979)The experiments included comparative spread and depth measurements with equal rigging of a large blue-whiting trawl for 1500 HP vessel engine (6 to 8 m2 boards) and a 600 HP 4-pane1 combination trawl (4 to 4.5 m2 boards). ... -
Further experiments with radial escape section (RES) as fish-shrimp separator in trawl
(ICES CM Documents;1986/B:29, Working paper, 1986)A new approach to the bycatch problem when trawling for shrimp was initiated in Norway in 1984 utilizing the difference in swimming behaviour of fish and shrimp. A radial escape section (RES) in the aft belly of the ... -
Further results of Norwegian longline studies
(ICES CM Documents;1977/B:43, Working paper, 1977) -
A general system for logging information from instruments in the sea.
(ICES CM Documents;1978/B:23, Working paper, 1978)The paper describes a logging system which aims at integrating various forrns for primary data recording into a common standard that can be handled by the same reading and data processing equipment, Some illustrative ... -
Grid devices to select shrimp size in trawls
(ICES CM Documents;1993/B:35, Working paper, 1993)Discard of small shrimps and fish is a substantial problem in the fishery for deepwater shrimp in the Northwest Atlantic. In order to solve this problem, different grid devices are under development to sort out discard ... -
Haddock avoidance reactions during trawling
(ICES CM Documents;1986/B:36, Working paper, 1986)Fish reaction to the whole trawling operation was studied using a stationary echo sounder-system observing the fish in front of the vessel and during trawl passage. Strong avoidance reactions were observed on haddock, ...