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Scientific basis for management of fish resources with regard to seismic exploration
(Fisheries and offshore petroleum exploitation 2nd internationl conference Bergen, Norway,April 6-8, 1992, Conference object, 1992) -
Session 9: Rapporteur's review. Introduction and edited discussion
(Conference object, 1990)Acoustic classification of fish must be one of the few notions in our business that appeals to the popular imagination, both among laymen and non-fisheries scientists. Just estimating fish density by acoustics has been a ... -
Some results of abundance estimation studies with echo integrators
(Symposium on acoustic methods in fisheries research, Bergen, Norway, 19-22 June, 1973, Conference object, 1973) -
Sonar observations of schooling herring: School dimensions, swimming behaviour, and avoidance of vessel and purse seine
(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 ... -
Target strength measurements of fish
(Symposium on acoustic methods in fisheries research, Bergen, Norway, 19-22 June, 1973, Conference object, 1973) -
Target tracking with a split-beam echo sounder
(Conference object, 1990)The split-beam technique makes it possible to determine the precise location of a fish in the acoustic beam. This is a very useful feature, as it permits behavioural observations to be conducted without disturbing the fish. ... -
Technological aspects of the modern Norwegian purse seine fisheries
(Technical Conference on Fish Finding, Purse Seining and Aimed Trawling, Reykjavik (Iceland), 24-30 May 1970., Conference object, 1970) -
The role of cod in the decline in arctic fishes in the Barents sea
(Lecture, 2018) -
The use of acoustic and bottom trawl surveys in the assessment of north-east arctic cod and haddock stocks [fra "a workshop on comparative biology, assessment and management of gadoids from the North Pacific and Atlantic oceans" 24-28 June, 1985 Seattle, Washington]
(Proceedings: Part II, Conference object, 1986)In recent years survey results constitute the most important part of the material on which the stock assessments of North-east Arctic cod and haddock are based. Both acoustic surveys and bottom trawl surveys have been ... -
Viral Haemorrhagic Septicemia (VHS) in wild and farmed fish in Norwegian waters
(Conference object, 2011-05)Viral Haemorrhagic septicaemia viruses (VHSV) are isolated from 82 different fish species and are globally spread in freshwater as well as marine environments. The virus can cause disease outbreaks both in wild and ...