Blar i Havforskningsinstituttet på emneord "planteplankton"
Viser treff 1-20 av 40
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A combined fish larval, phytoplankton and oceanographic survey in the Skagerrak and the Kattegat in April 1983
(ICES CM Documents;1983/L:26, Working paper, 1983) -
Abundance and productivity of the pelagic ecosystem along a transect across the northern Mid Atlantic Ridge in June 2003
(ICES CM documents;2008/C:12, Working paper, 2008)A research cruise was conducted into the Irminger Sea west and southwest of Iceland on the Icelandic vessel Árni Friðriksson, from 4-30 June 2003, investigating redfish, Sebastes mentella, other pelagic fishes, zooplankton, ... -
Can silicate and turbulence regulate the vertical flux of biogenic matter? A mesocosm study
(Journal article; Peer reviewed, 2001-07-31)The effects of silicate and turbulence on the vertical flux of biogenic matter were studied in mesocosms. The experiment consisted of eight 27 m3 enclosures all fertilised with nitrate and phosphate (NP), while 4 of the ... -
Effect of turbulence and different types of fertilizers on phytoplankton and oyster larvae (Ostrea edulis) in mesocosms
(ICES CM Documents;1986/K:41, Working paper, 1986)Different types of inorganic fertilizers were added to five cubic metres plastic bags. Different turbulent regimes were established in the bags. The effects of these manipulations on nutrient salts, chlorophyll a, ... -
Flomvann fra Glomma og miljøforholdene i Skagerrak sommeren 1995. (The Glomma flood and the environmental conditions in the Skagerrak in the summer 1995)
(Fisken og havet, Research report, 1996)The fresh-water influence from the flood in June, 1995 to the eastern Skagerrak created an unusual and very fresh surface layer with a strong halocline. The surface water with extremely low salinities was detected all ... -
Geografisk og sesongmessig fordeling av plante- og dyreplankton i det nordlige Barentshavet. Sluttrapport.
(Fisken og havet, Research report, 1995)The present report summarizes our knowledge on the distribution of phyto- and zooplankton in the northern Barents Sea. More than 50% of the biomass of phytoplankton is produced during the spring bloom period and takes ... -
Grazing by the heterotrophic dinoflagellate Protoperidinium steinii on a Ceratium bloom
(Journal article; Peer reviewed, 2002-01-11)Variations in heterotrophic dinoflagellate populations at a station in the inner Oslofjord, Norway, were studied by sampling at ca 4 d intervals. Cells were concentrated from 1 l samples by filtration before being counted ... -
Grazing Rates of Calanus finmarchicus on Thalassiosira weissflogii Cultured under Different Levels of Ultraviolet Radiation
(Journal article; Peer reviewed, 2011-10-18)UVB alters photosynthetic rate, fatty acid profiles and morphological characteristics of phytoplankton. Copepods, important grazers of primary production, select algal cells based upon their size, morphological traits, ... -
Green water in larviculture - An experiment with natural phytoplankton in tanks for first feeding of halibut larvae (Hippoglossus hippoglossus L.)
(ICES CM Documents;1990/F:61, Working paper, 1990)At 232 day degrees, halibut larvae were transferred from indoor tanks to 1.7 m^3 outdoor tanks for first feeding. The number in each tank was approximately 750. Three tanks were continuously given algal suspension ("green ... -
The hydrographical background for regional differences in phytoplankton abundance and specific composition within the Hardangerfjord area
(ICES CM Documents;1966/P:14, Working paper, 1966) -
Impact of grazin from capelin (Mallotus villosus) on zooplankton: a case study in the northern Barents Sea in August 1985
(ICES CM Documents;1991/L:62, Working paper, 1991)The distribution of capelin was mapped in the area east of Hopen. Zooplankton was sampled with Juday net and 1m^2 MOCNESS sampler, and analyzed with respect to hydrography and capelin abundance. The capelin "front" ... -
Joint Norwegian-Russian environmental status report on the Barents Sea Ecosystem. Update for current situation for climate, phytoplankton, zooplankton, fish and fisheries in 2011.
(IMR/PINRO Joint Report Series;3/2013, Research report, 2013) -
Non-linear dynamics in marine-phytoplankton population systems
(Journal article; Peer reviewed, 2004-06-08)Although non-linear density-dependence has been widely emphasized in population dynamics studies, the existence of non-linear exogenous forces have been less explored. In articular, we propose that the formulation of ... -
Phytoplankton depletion by mussel aquaculture: high resolution mapping, ecosystem modeling and potential indicators of ecological carrying capacity
(ICES CM documents;2008/ H:12, Working paper, 2008)Mussels held in suspended culture have an exceptional capacity to filter the water column and reduce suspended particle concentrations. However, seston depletion is only of concern if the phytoplankton are cleared faster ... -
Pollution effect upon the phytoplankton of the Oslofjord
(ICES CM Documents;1969/L:15, Working paper, 1969) -
Primary production enhancement by artificial upwelling in a western Norwegian fjord
(Journal article; Peer reviewed, 2007-12-20)To enhance primary production rate for shellfish cultivation in fjords, a large-scale artificial upwelling experiment was carried out in a western Norwegian fjord during the summers of 2004 and 2005. Pumping 2 m3 s–1 ... -
The production of plankton in the coastal waters off Bergen : March-April 1922
(Report on Norwegian Fishery and Marine Investigations;vol 3 no 8, Research report, 1927) -
Qvantitative investigations of plankton at Lofoten, March-April, 1922-1924 : preliminary report
(Report on Norwegian Fishery and Marine Investigations;vol 3 no 7, Research report, 1926) -
Report of the Study Group on Zooplankton Production
(ICES CM Documents;1991/L:32, Working paper, 1991)