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Management strategies for the fish stocks in the Barents Sea : proceedings of the 8th PINRO-IMR Symposium, Bergen, 15-16June 1999
(IMR/PINRO Joint Report Series;5/2002, Research report, 2002) -
Maturity studies of Barents Sea capelin: Variations in length at maturity for female capelin
(PINRO-IMR Symposium, Conference object, 1985)The sexual maturation of female capelin in the Barents Sea is studied using a new method based on microscope investigation of eggs. A "length at maturity" (L) is defined, and a method for synthesizing the data is ... -
A method for estimation of predation mortalities on capelin using a cod-capelin model for the Barents Sea
(PINRO-IMR Symposium, Conference object, 1992)The Barents Sea capelin stock coliapsed during the period 1983-1986. One of the main factors causing the colIapse was a rapid increase in consumption of capelin by cod, caused by the strong 1983 cod year class. Based ... -
Methods and results in the joint PINRO-IMR stomach sampling program
(PINRO-IMR Symposium, Conference object, 1992)In 1984IMR started a stomach samling program om cod (Gadus morhua) in the Barents Sea. The aim of the program was to provide the multispecies model with the quantitative data on the cod's food selection. Later other species ... -
Methods of index calculation and presentation of fish abundance data using standard computer programs
(PINRO-IMR Symposium, Conference object, 1995)Standard 0-group indices distribution maps are now produced based on hand-drawn maps using AutoCad with some additional procedures. This paper briefly describes the mathod. The paper further describes ways of importing ... -
Methods to reduce bycatch of Red King Crab (Paralithodes camtschatica) in passive fishing gears
(IMR/PINRO Joint Report Series, Conference object, 2001) -
Migration, mingling and homing of North-East Arctic cod from two separated spawning grounds
(PINRO-IMR Symposium, Conference object, 1984)Migration of mature North-east Arctic cod tagged in 1975 and 1979-81 on two different spawning areas were studied. The numbers tagged were 11,500 in Lofoten and 3,350 off More, of which 1,088 and 476 recaptures are ... -
Modelling age-dependent natural mortality of juvenile Norwegian spring-spawning herring (Clupea harengus L.) in the Barents Sea
(PINRO-IMR Symposium, Conference object, 1995)Understanding the patterns of mortality in the juvenile stages is essential for improving current stock assessment procedures. A crucial aspect is at which stage in the life cycle of fish is year-class strength determined. ... -
Multisampler - a new tool for use in sampling trawls
(PINRO-IMR Symposium, Conference object, 1997)The MultiSampler is a system to be mounted in sampling trawls to give better estimates and knowledge about fish stocks.The system is remotely controlled via a hydroacoustic link from the vcssel. It consists of a rigid ... -
The NE Atlantic seal resources, their management and their role in the ecosystem [presentation]
(IMR/PINRO Joint Report Series;5/2008, Conference object, 2008) -
The North-East Arctic cod stock's consumption of various prey species 1984-1989
(PINRO-IMR Symposium, Conference object, 1992)The North-East Arctic cod stock's consumption of different prey species has earlier been calculated by Mehl (1989) for the period 1984-1986. However, a new model to describe gastric evacuation on cod has now been presented ... -
Oil hydrocarbons and PAH in the Barents Sea sediments [presentation]
(IMR/PINRO Joint Report Series;5/2007, Conference object, 2007) -
Overview of fish stocks in the Barents Sea and adjacent areas
(IMR/PINRO Joint Report Series, Conference object, 2002)The paper deals in short with the stock and catch history of the most important fish stocks in the Barents Sea and adjacent waters. -
Polyaromatic hydrocarbons (PAHs) in the Barents Sea sediment: Small changes over the recent 10 years
(IMR/PINRO Joint Report Series;5/2007, Conference object, 2007) -
Pre-recruit studies of the North-East Arctic Greenland halibut stock
(PINRO-IMR Symposium, Conference object, 1995)Abundance indices of 0-group Greenland halibut (Reinhardtius hippoglossoides) from the international 0-group surveys in the Barents Sea showed a sudden decrease from 1987 to 1988 to a low level which has remained for the ... -
Precision in recruitment estimates and its implications on management of demersal fish stocks
(PINRO-IMR Symposium, Conference object, 1995)Errors in abundance indices of recruiting year-classes will affect stock predictions. The contribution of recruiting year-classes to the predictions of catch and spawning stock biomass for the stocks of Northeast Arctic ... -
Predation by juvenile herring (Clupea harengus L.) on Barents Sea capelin (Mallotus villosus Muller) larvae
(PINRO-IMR Symposium, Conference object, 1995)In years with high abundance of juvenile Norwegian spring spawning herring in the Barents sea, the year-class strength of capelin has frequently been observed to be poor. It has therefore been suggested that predation ... -
Prediction of capelin growth for use in CapTool
(IMR/PINRO Joint Report Series;2/2005, Conference object, 2005) -
A preliminary assessment of the effects of introducing a grid in the trawl fishery for the North-East Arctic cod
(IMR/PINRO Joint Report Series, Conference object, 2001)A number of studies have dealt with the testing of alternations of existing gears meant to reduce by-catch of non-target species or sizes. Such alternations can for example be changes in mesh size, mesh shape or introduction ...