Browsing Brage IMR by Author "Skjoldal, Hein Rune"
Now showing items 41-60 of 66
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Pro mare tokt med KV "Senja" og KV "Andenes" 1. - 25. April 1986.
Skjoldal, Hein Rune ([Toktrapport/Havforskningsinstituttet];, Working paper, 1986-03-12) -
Recruitment variability of fish stocks in the Barents Sea: Spatial and temporal variation in 0-group fish length of six commercial species during recent decades of warming (1980–2017)
Skjoldal, Hein Rune; Eriksen, Elena; Gjøsæter, Harald; Skagseth, Øystein; Prozorkevich, Dmitry A.; Lien, Vidar Surén (Peer reviewed; Journal article, 2022)Young-of-the-year (0-group) fish in the Barents Sea have been investigated in an annual joint Norwegian-Russian pelagic trawl survey in autumn, using a standardized procedure since 1980. We use a conceptual framework of ... -
Report from cruise with KV "Senja" and KV "Andenes" to the Barents Sea, 1-24 April 1986 : (PRO MARE cruise no.7)
Skjoldal, Hein Rune (Rapport/Notat Biologisk og kjemisk oseanografi;BKO 8604, Working paper, 1986-06-26)The purpose of the cruise was to investigate the plankton development in early spring. This report, which is mainly administrative, summarizes information on cruise participants, cruise tracks and stations, sampling and ... -
Report from North Sea Task Force Workshop on Ecological Quality Objectives [Geilo, 20-22 September, 1993]
Skjoldal, Hein Rune (Working paper, 1993) -
Reproduction and development of Calanius finmarchicus, C. glacialis and C. hyperboreus in the Barents Sea
Melle, Webjørn; Skjoldal, Hein Rune (Journal article; Peer reviewed, 1998)The aim of this study is to examine the reproduction and development of Calanus finmarchicus, C. glacialis and C. hyperboreus in relation to the timing and progress of the phytoplankton spring bloom in different water ... -
Reproduction of zooplankton in relation to initiation of spring phytoplankton bloom in the Barents Sea
Melle, Webjørn; Skjoldal, Hein Rune; Hassel, Arne; Rey, Francisco (ICES CM Documents;1987/L:30, Working paper, 1987)The phytoplankton spring bloom development and zooplankton reproduction were investigated in April 1986 in the central and northern Barents Sea. Different stages of phytoplankton bloom development were found, reflecting ... -
Seasonal and interannual variability in abundance and population development of Calanus finmarchicus at the western entrance to the Barents Sea, 1995–2019
Skjoldal, Hein Rune; Aarflot, Johanna Myrseth; Bagøien, Espen; Skagseth, Øystein; Rønning, Jon S.; Lien, Vidar Suren (Peer reviewed; Journal article, 2021)Data on copepodid abundance and stage composition of Calanus finmarchicus was collected with seasonal resolution (5–6 times a year) from four stations along an oceanographic transect across the western Barents Sea Opening ... -
Seasonal development of plankton in the Barents Sea: A conceptual model
Rey, Francisco; Skjoldal, Hein Rune; Hassel, Arne (Working paper, 1987)Capelin (Mallotus villosus) is a small salmonid fish that forms the basis of one of the most important fisheries in the Barents Sea. Relatively large variations in growth of capelin prompted ecological investigations ... -
Sedimentation of particulate organic matter and silicium during spring and summer in Lindaspollene, Western Norway
Skjoldal, Hein Rune; Wassmann, Paul (Journal article; Peer reviewed, 1986-04-24)Sedimentation of organic and inorganic matter was determined at 18, 38, 70 and 85 m between 17 March and 8 October 1982, m the land-locked flord Llndespollene Rates of sedimentation were highest dunng spnng with 2 peaks ... -
Size-fractioned zooplankton biomass in the Barents Sea: Spatial patterns and temporal variations during three decades of warming and strong fluctuations of the capelin stock (1989–2020)
Skjoldal, Hein Rune; Eriksen, Elena; Gjøsæter, Harald (Peer reviewed; Journal article, 2022)Zooplankton biomass has been monitored on joint Norwegian-Russian surveys in late summer and autumn since the 1980s. We report here on zooplankton biomass in three size fractions (<1, 1–2, and > 2 mm in screen mesh opening) ... -
Skyld ikke på havbruket [kronikk i Bergens Tidende]
Skjoldal, Hein Rune (Others, 2008-02-14) -
Spatial and temporal changes in the Barents Sea pelagic compartment during the recent warming
Eriksen, Elena; Skjoldal, Hein Rune; Gjøsæter, Harald; Primicerio, Raul (Peer reviewed; Journal article, 2017) -
Spawning and development of Calanus spp. in the Barents Sea
Skjoldal, Hein Rune; Melle, Webjørn (ICES CM Documents;1994/L:22, Working paper, 1994)From 1986 to 1988 eight cruises were conducted in the Barents Sea, covering Atlantic water in central parts of the Sea and meltwater and Arctic water in the Polar front region. During the cruises hydrography, ... -
Species composition of three size fractions of zooplankton used in routine monitoring of the Barents Sea ecosystem
Skjoldal, Hein Rune (Peer reviewed; Journal article, 2021)Size fractionation with 2000 and 1000 μm screens is used by the Institute of Marine Research in Norway in routine monitoring of zooplankton biomass. This study examines the separation of taxa by this procedure. For copepods ... -
Spring phytoplankton development and zooplankton reproduction in the central Barents Sea in the period 1979-1984
Skjoldal, Hein Rune; Hassel, Arne; Rey, Francisco; Loeng, Harald (PINRO-IMR Symposium, Conference object, 1987)Physical and biological conditions have been studied along a fixed transect across the polar front in the central Barents Sea in late spring or early summer in each year from 1979 to 1984, These data are analysed with ... -
Sudden change in long-term ocean climate fluctuations corresponds with ecosystem alterations and reduced recruitment in Norwegian spring-spawning herring (Clupea harengus, Clupeidae)
Toresen, Reidar; Skjoldal, Hein Rune; Vikebø, Frode Bendiksen; Martinussen, Monica Bente (Journal article; Peer reviewed, 2019)Fish stocks vary in abundance. The causes behind the fluctuations may be difficult to determine, especially ones caused by natural fluctuations, but long‐term data series may provide indications of the mechanisms. Assessments ... -
The Arctic Ocean Review :: Phase I report (2009-2011)
Hoel, Alf Håkon; Skjoldal, Hein Rune; Sander, Gunnar; Loeng, Harald; Jakobsen, Ingvild; Dahl, Irene (Research report, 2011) -
The Jutland Current: Nutrients and physical oceanographic conditions in late autumn 1989
Aure, Jan; Svendsen, Einar; Rey, Francisco; Skjoldal, Hein Rune (ICES CM Documents;1990/C:35, Working paper, 1990)Hydrography, currents, nutrients, water transparency, in situ chlorophyll fluorescence and primary production were studied during a cruise with R/V "G.O. Sars" to the west coast of Denmark, Skagerrak and Kattegat from ... -
Toktrapport [20/5 - 16/6, 6/6 - 19/6, 1983]
Gjøsæter, Harald; Hassel, Arne; Loeng, Harald; Rey, Francisco; Skjoldal, Hein Rune ([Toktrapport/Havforskningsinstituttet];, Working paper, 1983-12-12) -
Towards a North Sea ecosystem component of GOOS for assessment and management: report from a strategic workshop in Bergen 5-7 September 2001
Sætre, Roald; Skjoldal, Hein Rune; Flemming, Nicholas C.; Beek, Frans van (Fisken og havet, Research report, 2001)ICES and IOC have established a joint Steering Group on GOOS (SGGOOS), which also involves the European component of GOOS (EuroGOOS). To increase the efficiency and effectiveness of the use of data products from current ...