Browsing Brage IMR by Subject "VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452"
Now showing items 81-100 of 1326
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Biological reference points for north-east Arctic cod and haddock
(ICES CM Documents;1989/G:29, Working paper, 1989)It has been suggested by ACFM that Fmed might be preferable to Fmax as a biological reference point for the North-East Arctic cod. However, the Fmed level of more than twice Fmax appeared high, and it was known to have ... -
Biologiske innsamlinger og observasjoner på sommertoktet med G. O Sars i Norskehavet 20/5 - 2/7- 1954
([Toktrapport/Havforskningsinstituttet];, Working paper, 1952-05-20) -
Biomass of Scyphozoan Jellyfish, and Its Spatial Association with 0-Group Fish in the Barents Sea
(Journal article; Peer reviewed, 2012-03-22)An 0-group fish survey is conducted annually in the Barents Sea in order to estimate fish population abundance. Data on jellyfish by-catch have been recorded since 1980, although this dataset has never been analysed. In ... -
Blue whiting in the Norwegian Sea, spring and summer 1995 and 1996
(ICES CM Documents;1997/CC:15, Working paper, 1997)The Norwegian Sea is an important feeding area for blue whiting in the Northeast Atlantic. The adult blue whiting migrates into the Norwegian Sea after spawning along the continental slope west of The British Isles. A ... -
Bycatch of juvenile fish in the shrimp fishery - management based on bioeconomic criteria
(ICES CM Documents;1994/T:14, Working paper, 1994)The bycatch of juvenile fish can be a major problem in fisheries with small meshed trawls, such as fisheries for shrimp, (Pandalus borealis). A sorting grid that effectively removes most of the undersized fish has been ... -
Can a bioenergetics model explain growth of the northeast Arctic cod?
(ICES CM Documents;1994/G:7, Working paper, 1994)For the period 1984 to 1991, the individual maximum daily consumption in calories (cmax) based on 33000 cod stomach samples is given by the power equation: Cmax = 68.84 · W ^0,934 where W represents the total fish ... -
Changes in abundance and distribution of the Barents Sea long rough dab, hippoglossoides platessoides (Fabricius) during the period 1980- 1992
(ICES CM Documents;1993/G:36, Working paper, 1993)Abundance and biomass of long rough dab in tha Barents Sea and adjacent waters were assessed from bottom trawl survey data from research surveys by Norway and Russia, during the period 1980- 1992. Although there was no ... -
Changes in the Norwegian Sea deep water
(ICES CM Documents;1996/O:11, Working paper, 1996)This paper deals with observed changes in the Norwegian Sea Deep Water (NSDW) after the cessation of bottom water formation in the Greenland Sea. Current measurements indicate that the deep water flow from the Greenland ... -
Changes on horse mackerel (Trachurus trachurus) catch distribution in the Northeast Atlantic
(ICES CM Documents;1996/S:26, Working paper, 1996)The distributions of international commercial catch data were mapped by ICES rectangle and quarter from 1983-1994. These indicate a northward expansion of horse mackerel distribution in the Northeast Atlantic since 1987. ... -
Climate-Driven Ichthyoplankton Drift Model Predicts Growth of Top Predator Young
(Journal article; Peer reviewed, 2013-11-12)Climate variability influences seabird population dynamics in several ways including access to prey near colonies during the critical chick-rearing period. This study addresses breeding success in a Barents Sea colony of ... -
Climatic changes at the North Sea plateau during 1967 - 1984
(ICES CM Documents;1987/C:17, Working paper, 1987)The average temperature and salinity in the water masses with S> 35.0 in the Utsira and Hanstholmen sections for the periode 1967-1984 is presented. The influence of the mid 1970`s salinity anomaly at the North Sea ... -
Climatic changes in the deep Norwegian coastal waters and Skagerrak 2000-2005 in relation to previous decades
(ICES CM documents, Working paper, 2006) -
Climatic effects filtered through the food web affect the dynamics of Arcto-Norwegian cod
(ICES CM documents, Working paper, 2005)The world's largest cod stock, the Arcto-Norwegian cod (a.k.a. North-East Arctic cod), is heavily influenced by temperature in two ways: First, cod recruitment tends to be high when Barents Sea temperature in the spawning ... -
Climatic variability in the Skagerrak and coastal waters of Norway
(Journal article; Peer reviewed, 2011-12-18)The Institute of Marine Research in Norway collects marine data from all national waters. Data are primarily collected from vessels, but observation buoys, manual measurements, and oceanographic gliders are also used. The ... -
Climatic variations in the Barents Sea
(PINRO-IMR Symposium, Conference object, 1987)The eireulation system of the Barents Sea is described. Warm water flows into the sea from west and is gradually transformed into Artic waters flowing out from the sea, partly as surface currents, partly as dense bottom ... -
Climatic variations in the Barents Sea during the 1970`s
(ICES CM Documents;1984/GEN:15, Working paper, 1984) -
Coastal and fjord resources off Finnmark and Troms counties, Norway, based on the 1992 survey
(ICES CM Documents;1994/G:38, Working paper, 1994)In 1992 an acoustic survey in fjords and shelf areas off Finnmark and Troms, two counties in northern Norway, was made to estimate the total biomass of cod, haddoc, saithe, redfish species and herring to be 876.000 tonnes. ... -
Cod in a changing climate Match-mismatch and Threshold for the North Sea cod recruitment
(ICES CM documents;2005 / AA:01, Working paper, 2005)Climatic changes are disrupting otherwise tight trophic interactions between predator and prey. Most of the earlier studies have primarily focused on the temporal dimension of the relationship in the framework of the ... -
Combining hydrographical particles-tracking models with spatial analyses to evaluate spatial dynamics of cod larvae and 0-group in the Barents Sea
(ICES CM Documents;2009/C:06, Working paper, 2009)Recruitment ecology of cod has been an important focus within the framework of GLOBEC. A large part of this work focused on understanding the spatiotemporal component of cod populations. For the early pelagic life stages, ... -
Comparative analysis of split beam data
(ICES CM Documents;1988/B:44, Working paper, 1988)Split beam data can provide high quality, in situ, fish target strength estimates, however a careful calibration is required to realize this potential. In same cases a standard target has been used to make a large number ...