Blar i Brage IMR på forfatter "Misund, Ole Arve"
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Mykje å vinna med sorteringsrist i makrelltrål
Misund, Ole Arve (Havforskningsnytt, Working paper, 1998) -
Nok til ein god middag
Misund, Ole Arve (Chronicle, 2008-04-11) -
Norwegian fisheries in the Svalbard zone since 1980. Regulations, profitability and warming waters affect landings
Misund, Ole Arve; Heggland, Kristin; Skogseth, Ragnheid; Falck, Eva; Gjøsæter, Harald; Sundet, Jan Henry; Watne, Jens; Lønne, Ole Jørgen (Journal article; Peer reviewed, 2016-02-02)The Svalbard archipelago in the High Arctic is influenced by cold Arctic water masses from the north-east and the warm West Spitsbergen Current flowing northwards along its western coast. The eastern waters and the fjords ... -
On subjectivity in the judging of acoustic records; comparison of degree of homogenity in allocation of echo values by different teams
Korsbrekke, Knut; Misund, Ole Arve (ICES CM Documents;1993/B:21, Working paper, 1993)On four fish abundance estimation surveys in the Barents Sea, january-february 1993, the acoustic records were judged by two independent teams. We have analyzed the degree of homogenity in allocation of echo values to ... -
On the shape, size and density of North Sea herring schools as mapped by echo integration and accurate sonar projection
Misund, Ole Arve; Aglen, Asgeir (ICES CM Documents;1993/B:16, Working paper, 1993)The shape and horizontal extent of herring schools in the North Sea have been mapped by a naval sonar (SIMRAD SA 950) with narrow horizontal beam width. The density of schools that were passed over was measured by the ... -
Optimization of purse seines by large meshed sections and low lead weight. Theoretical considerations, sinking speed measurements and fishing trials.
Beltestad, Arvid K.; Misund, Ole Arve (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 ... -
Pelagic Fish Behaviour During Trawl Sampling Off Angola
Haugland, Eli Kyrkjebø; Misund, Ole Arve (Journal article; Peer reviewed, 2011-12-16)Large sardinella (Sardinella maderensis and Sardinella aurita) in warm waters off the coast of Africa are known to be a challenge for pelagic trawl sampling, for example during acoustic surveys for abundance estimation. ... -
Position prediction of herring schools in purse-seine capture situations
Misund, Ole Arve (ICES CM Documents;1987/B:10, Working paper, 1987)Sonar observations of herring schools in the North Sea and along the Norwegian Coast reveal a rather constant swimming behaviour of individual schools in purse-seine capture situations. On the basis of this a method for ... -
Predation of oyster larvae by Aurelia aurita in a Norwegian oyster pond
Aase, Hans; Misund, Ole Arve; Pedersen, Torstein (ICES CM Documents;1986/F:21, Working paper, 1986)In the norwegian oyster spatting ponds several factors may influence the spat production. During a basic, general study in a pond in 1983-84, Aurelia aurita was demonstrated to be a heavy predator on pelagic oyster ... -
Reaction of sandeel to seismic shooting: a field experiment and fishery statistics study
Hassel, Arne; Knutsen, Tor; Dalen, John; Skaar, Kristian; Østensen, Øivind; Haugland, Eli Kyrkjebø; Fonn, Merete; Høines, Åge S.; Misund, Ole Arve (Fisken og havet, Research report, 2003)The reaction to seismics of lesser sandeel (Ammodytes marinus) was investigated in the North Sea using steel cages to enclose the fish while burried in the sand. Three cages were exposed to seismic shooting from SV "Falcon ... -
Relationships between the geometric dimensions and biomass of schools
Misund, Ole Arve; Aglen, Asgeir; Beltestad, Arvid K.; Dalen, John (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 on surveys of the distribution, abundance and migrations of the Norwegian spring-spawning herring, other pelagic fish and the environment of the Norwegian Sea and adjacent waters in late winter, spring and summer of 1997
Vilhjálmsson, Hjálmar; Misund, Ole Arve; Arrhenius, Fredrik; Holst, Jens Christian; Gislason, Ástthor; Gudmundsdottir, Asta; Jacobsen, Jan Arge; Krysov, Alexander; Malmberg, Svend-Aage; Reid, David (ICES CM Documents;1997/Y:4, Working paper, 1997)The distribution and migrations of Norwegian spring spawning herring in the Norwegian Sea in the spring and summer of 1997 were mapped during 11 coordinated surveys carried out by Faroese, Icelandic, Norwegian, Russian ... -
Rist-seleksjon av sei i merd
Misund, Ole Arve; Skeide, Roar L. (Havforskningsnytt, Working paper, 1992) -
Ristsortering av makrell i not og trål
Beltestad, Arvid K.; Misund, Ole Arve (Fisken og havet, Research report, 1993)During the last few years, development of systems for selection of fish size in purse seines has become an important task for gear research. In the mackerel fishery, there is a demand for size selection both in the purse ... -
Sampling herring in the Norwegian Sea by pelagic trawl
Misund, Ole Arve (ICES CM Documents;1997/W:21, Working paper, 1997)When the stock of Norwegian spring-spawning herring is distributed in the Norwegian Sea in summertime, pelagic trawl sampling may be rather challenging because of substantial variation in vertical distribution (from ... -
School geometry measurements using a sonar accuracy and an algorithm for school detection
Misund, Ole Arve (ICES CM Documents;1991/B:36, Working paper, 1991)The accuracy of geometric measurements of schools, using horizontal guided single-beam or multi-beam sonar, is simulated. For both types of sonars, the accuracy is dependent of horizontal beam-width and range. As multiple ... -
Schooling dynamics of spawning herring (Clupea harengus L.) in a bay in South-Western Norway
Axelsen, Bjørn Erik; Misund, Ole Arve (PINRO-IMR Symposium, Conference object, 1997)The schooling dynamics of hening (Clupea harengta L.) was investigated during spawning in Raunefjord, south-westem Norway in 1994. A single school of Nonvegian spring spawning hening WSS) was tracked during daytime over ... -
Seasonal changes in distribution and aggregation characteristics of sardinella species in Angolan waters
Misund, Ole Arve; Luyeye, Nkosi (ICES CM documents, Working paper, 1998) -
Size-selection of mackerel and saithe in purse seine
Misund, Ole Arve; Beltestad, Arvid K. (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 ... -
Sonar observations of schooling herring: School dimensions, swimming behaviour, and avoidance of vessel and purse seine
Misund, Ole Arve (Conference object, 1990)Horizontal dimensions and swimming and avoidance behaviour of herring schools were quantified by means of a multi-beam, true-motion sonar. The schools were usually elliptical with an average length to width ratio of about ...