Blar i Brage IMR på emneord "VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fisheries technology: 924"
Viser treff 581-600 av 725
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Selectivity experiments with a cod-end made of polypropylene splitfiber
(ICES CM Documents;1967/B:10, Working paper, 1967) -
Selectivity experiments with a large-meshed topside chafer
(ICES CM Documents;1966/F:13, Working paper, 1966) -
Selectivity experiments with Danish seine on cod and haddock in northern Norway in 1983
(ICES CM Documents;1985/B:25, Working paper, 1985)In August-September 1983, selectivity experiments with Danish seine were carried out in northern Norway. Two commercial vessels were used and hauls with 110 mm and 135 mm mesh size were compared, using the alternate ... -
Selectivity experiments with square mesh codends in bottom trawl
(ICES CM Documents;1986/B:28, Working paper, 1986)During selectivity experiments with square and diamond mesh codends, an evaluation of the covered codend method and a modified trouser trawl method went in favour of the last one. Both twisted knotless- and braided ... -
Selectivity experiments with topside chafers
(ICES CM Documents;1958/72, Working paper, 1958) -
Selectivity experiments with topside chafers and round straps
(ICES CM Documents;1977/B:38, Working paper, 1977) -
The Selectivity of Halibut Gill Nets
(ICES CM Documents;1961/18, Working paper, 1961) -
Seleksjonsforsøk med torskeruser
(Fisken og havet;1963 - Nr. 2, Journal article, 1963)The selection of cod in trap-nets made of cotton has been studied on the fishing localities and in an aquarium. Most of the calculations are made on data from aquarium experiments with five different mesh-sizes. The selection ... -
Selektiv flyndresnurrevad. Rapport fra forsøk med lavåpnings snurrevad for å skille torsk fra flatfisk
(Rapport fra Havforskningen;27-2016, Working paper, 2016-04-15) -
Semipelagisk trålrigging av EH 716 høgåpnings bunntrål utstyrt med rullende bunntrålgear om bord i G. O. Sars i mars 2014
(Rapport fra Havforskningen;Nr. 27-2014, Working paper, 2014-10) -
Sexual experience in cod (Gadus morhua L.) and haddock (Melanogrammus aeglefinus L.)
(ICES CM Documents;1983/G:39, Working paper, 1983) -
A simple field instrument for measuring and recording up to 16 observations of current speed and direction.
(ICES CM Documents;1979/C:53, Working paper, 1979) -
Simulating echograms
(ICES CM Documents;1989/B:6, Working paper, 1989)Simulation of echo data can be useful for verifying echo integrators realized in computer software. A model is presented which associates distinct stochastic processes with each of the following: bottom depth; number, ... -
Simulations of multi-beam sonar echos from schooling individual fish in a quiet environment
(Journal article; Peer reviewed, 2012-12)A model is developed and demonstrated for simulating echosounder and sonar observations of fish schools with specified shapes and composed of individuals having specified target strengths and behaviors. The model emulates ... -
Simultaneous two-sphere two-transducer calibration
(ICES CM Documents;1990/B:23, Working paper, 1990)When directional transducers are mounted nearby, the central lobes of their beam patterns may partly overlap at ranges typical for standard-target suspension in calibration exercises, e.g., 20 m. According to the ... -
Size and condition of mackerel in research vessel trawl hauls versus commercial purse seine catches: implications for acoustic biomass estimation
(ICES CM documents, Working paper, 2006)In September, after the summer feeding has ceased, the Northeast Atlantic mackerel (Scomber scombrus) stock tends to aggregate in ICES Area IVa before they start to migrate southwards in December-February towards the ... -
Size Selection of Antarctic Krill (Euphausia superba) in Trawls
(Journal article; Peer reviewed, 2014-08-08)Trawlers involved in the Antarctic krill (Euphausia superba) fishery use different trawl designs, and very little is known about the size selectivity of the various gears. Size selectivity quantifies a given trawl’s ability ... -
Size selective effects of a plastic body on longline hooks
(ICES CM Documents;1991/B:46, Working paper, 1991)The potential for improving size selectivity of longlines by using a plastic body attached to the hook shank was tested in a fishing trial for tusk (Brosme brosme), ling (Molva molva) and haddock (Melanogrammus aeglefinus). ... -
Size structure, age-size dynamics and life history variation
(ICES CM documents;2008/F:13, Working paper, 2008)Here we present a new technique to study life history variation when only length distributions of populations are known. Shape of length distribution in a population is to a significant extent determined by the degree ... -
Size-selection of mackerel and saithe in purse seine
(ICES CM Documents;1994/B:28, Working paper, 1994)In purse seine fisheries, there may exist potentials for size selection because some of the fish in the catch are less than the legal size, and because different size groups are paid differently. Both potentials are ...