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Position prediction of herring schools in purse-seine capture situations
(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 ... -
Positive relationships between bottom trawl and acoustic data
(ICES CM documents, Working paper, 2004)Demersal fish stock biomass is usually estimated using commercial landings data, ‘tuned’ by various types of survey data, usually trawl. When collecting fish data by trawl it is only possible to take relatively small numbers ... -
Possibilities and limitations of extensive aquaculture of marine fish: evaluation of current results with Atlantic cod and further prospects
(ICES CM documents, Working paper, 1998) -
The potential importance of the paternal contribution to the ‘Stock Reproductive Potential’ of North-East Arctic cod (Gadus morhua)
(ICES CM documents, Working paper, 2005)Over the years there has been a growing interest in determining the real stock reproductive potential (SRP) as a means of understanding the dynamics of a fish population. For the purposes of assessment the spawning stock ... -
Potential sources of unaccounted mortality in the fishery for Norwegian spring spawning herring
(ICES CM documents, Working paper, 2002)The stock of Norwegian spring spawning herring (NSSH) is managed and fished by 5 different parties. These are the EU, Faroe Islands, Iceland, Norway and Russia. The most common gears are purse seine and pelagic trawl. The ... -
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 Benguela hake (Merluccius polli) on commercially exploited shrimps (Parapenaeus longirostris and Aristeus varidens) in Angolan waters.
(ICES CM documents, Working paper, 1997) -
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 ... -
Predation of oyster larvae by Aurelia aurita in a Norwegian oyster pond
(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 ... -
Predation on fish larvae as a regulatory force illustrated in enclosure experiments with large groups of larvae
(ICES CM Documents;1983/L:39, Working paper, 1983) -
Predation on herring (Clupea harengus) eggs and young larvae.
(ICES CM Documents;1980/H:33, Working paper, 1980)The study presented here is part of a greater project dealing with recruitment studies of a local herring stock in Lindåspollene north of Bergen. Fish predators on herring spawn, mainly cod and haddock, were trapped ... -
Predation on the eggs of Norwegian spring-spawning herring at a spawning ground outside the westcoast of Norway in 1981
(ICES CM Documents;1985/H:55, Working paper, 1985)Predation on the eggs of demersal spawners has been reported several times, and findings of haddock feeding on capelin or herring eggs is a well known phenomenon. A spawning ground where spawning has been detected through ... -
Predicting recruitment of 0-group gadoids in the Barents Sea - critical interaction between models and observations
(ICES CM documents, Working paper, 2007)The most important gadoid fish stocks of the Barents Sea spawn along the coast of Norway. The eggs, larvae and juveniles are transported northwards with the oceanic coastal currents from the spawning grounds towards their ... -
Prediction of capelin growth for use in CapTool
(IMR/PINRO Joint Report Series;2/2005, Conference object, 2005) -
Prediction of capelin growth for use in CapTool
(IMR/PINRO Joint Report Series;2/2005, Conference object, 2005) -
Prediction of habitats on a fishing bank off Northern Norway using a combination of multivariate analysis and GIS classification
(ICES CM documents;2008/G:09, Working paper, 2008) -
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 ... -
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 ...