Blar i ICES CM documents authored by IMR scientists (1949-2011) på tittel
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Assessing the precision of the estimated age distribution of the commercial catch of Northeast Arctic cod
(ICES CM documents, Working paper, 2001)The assessment of Northeast Arctic cod is based on estimates of the commercial catch numbers at age. The age structure of the catch is estimated by sampling individuals from commercial fishing trips. Though it is commonly ... -
Assessing trawl-survey estimates of frequency distributions
(ICES CM Documents;2000/K:23, Working paper, 2000)Marine trawl surveys catch a cluster of fish at each station and fish caught together tend to have more similar characteristics, such as length, age, stomach contents etc., than those in the entire population. When this ... -
Assessment of potential oil pollution damages on fish resources. Some examples from the area outside mid-Norway
(ICES CM Documents;1987/E:13, Working paper, 1987)Detailed mapping of fish eggs and larvae both in space and time is essential knowledge when realistic assessments of oil pollution damages to the fish resources are established. The text explain with some examples our ... -
Assessment of the North-East Arctic and North Sea Stocks of Saithe Taking Into Account Migration
(ICES CM Documents;1981/G:36, Working paper, 1981)Tagging experiments have shown that there is a substantial migration of young saithe from the Norwegian coast north of 62°N to the North Sea. Assessments of the North-East Arctic and North Sea Stocks of saithe were made ... -
Assessments of the Arcto-Norwegian cod stock : The yield and size of the mature stock versus fishing pattern, fishing effort, natural mortality and mesh size
(ICES CM Documents;1975/F:34, Working paper, 1975) -
Assigning values of target strength and equivalent beam angle in acoustic surveys of fish
(ICES CM Documents;1991/B:34, Working paper, 1991)Contrary to popular opinion, the equivalent beam angle (~) is not determined solely by the transducer directivity. Rather, like the target strength TS, it also depends on the scattering properties of the target fish, but ... -
The atlantic inflow to the North Sea and the Skagerrak indicated by surface observations
(ICES CM Documents;1978/C:17, Working paper, 1978)By means of surface observations of temperature and salinity along shipping routes across the North Sea it is shown that the Atlantic inflow along the western and southern edge of the Norwegian Channel seems to reach ... -
Atlanto-Scandian herring and capelin working group report : Part 1 [12-14 May 1981, Copenhagen, Denmark]
(ICES CM Documents;1981/H:11, Working paper, 1981) -
Atlanto-scandian herring and capelin working group report [Copenhagen, 28 - 30 October, 1981]
(ICES CM Documents;1982/Assess:2, Working paper, 1982) -
Atlanto-scandian herring and capelin working group report [Copenhagen, 4 -6 May, 1982]
(ICES CM Documents;1982/Assess:12, Working paper, 1982) -
Atlanto-Scandian Herring and Capelin Working Group Report [ICES headquarters, 25 -28 October, 1983]
(ICES CM Documents;1984/Assess:4, Working paper, 1984) -
Automatic calibration of the sensors used in a miniature STD instrument
(ICES CM Documents;1988/C:13, Working paper, 1988)The paper describes a system for simplified calibration of a new STD instrument. When measuring, the raw data from the instrument conductivity, temperature and pressure sensors are fed into a microprocessor inside the ... -
Automatic recording of fish heart rate on a personal computer
(ICES CM Documents;1988/B:34, Working paper, 1988)From acoustic tags operated into fish in a closed system, the heartbeat signals are sent via underwater telemetry and counted on a personal computer. The computer removes false pulses caused by noise, and calculates the ... -
Automatic species recognition, length measurement and weight determination, using the CatchMeter computer vision system
(ICES CM documents, Working paper, 2006)The collection of biological data on species composition and individual length and weight of specimen has always been an important part of fisheries research. Traditionally, the collected information has been recorded on ... -
The autumn spawning group of herring in the north-eastern North Sea
(ICES CM Documents;1966/H:26, Working paper, 1966) -
Avoidance from petroleum hydrocarbons by the cod (Gadus morhua)
(ICES CM Documents;1982/E:56, Working paper, 1982) -
Avoidance reactions of herring to a survey vessel, studied by scanning sonar
(ICES CM Documents;1988/H:46, Working paper, 1988)The behavioural response of a shallow herring layer to a steaming vessel has been studied by the use of a high-resolution scanning sonar technique. When the vessel was completely darkened, no significant reaction important ... -
Avoidance reactions of ultrasonic tagged cod during bottom trawling in shallow water
(ICES CM Documents;1991/B:41, Working paper, 1991)Introduction: Observations made by echo sounder (Ona 1988) have shown that cod (Gadus morhua L.) may avoid an approaching survey vessel horizontally and vertically. However, there has been a lack of information on the ... -
Await in the pelagic: herring compromising reproduction and survival within a vertically split school
(ICES CM documents, Working paper, 1998) -
Back-calculated length at age in Norwegian spring-spawning herring (Clupea harengus L.) : Estimating the common intercept or origin by tuning back-calculated length frequencies to observed ones
(ICES CM Documents;1996/D:9, Working paper, 1996)In Norwegian spring-spawning herring the common intercept of the back-calculating formula, as estimated by linear regression of the fish-scale relationship, grosssly overestimated the back-calculated length frequencie ...