Browsing Havforskningsinstituttet by Title
Now showing items 4875-4894 of 11581
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MCAP Chair's Report of MCAP-MIRAC Meeting 2007 [22-23 January ICES Headquarters]
(ICES CM documents;2007/MCAP: 01, Working paper, 2007) -
Me, myself and I -Teachers’ self-motivation and sense of responsibility determine the use of active learning methods
(Peer reviewed; Journal article, 2019) -
The Mean Sea Level Pressure (MSLP) Gradient across the Denmark Strait as Index for the Oceanographic Conditions in North Icelandic Waters
(ICES CM documents, Working paper, 2002)The oceanographic conditions in Icelandic waters are closely related to atmospheric forcing. In the present paper winter means of the atmospheric sea level pressure gradient across the Denmark Strait are correlated to a ... -
Measurement error model for the Norwegian common minke whale (Balaenoptera acutorostrata acutorostrata) surveys 2008-2013
(Peer reviewed; Journal article, 2021)A discrete measurement error model for radial distance and angle to detected objects in line transect surveys is considered. This approach directly quantifies the effect of measurement error on the estimated effective strip ... -
Measurement of fish target strength with a split-beam echo sounder
(Journal article; Peer reviewed, 1986)Data derived with a 38-kHz split-beam echo sounder have been analyzed to yield target strengths suitable for use with echo integrators. This has required compensation for both thresholding and saturation, since these ... -
Measurement of salinity with a new ultrasonic salinity sensor
(ICES CM Documents;1977/C:21, Working paper, 1977)The paper describes a way of measuring salinity by direct measurements of the fraction of total sound velocity that is dependent of salinity only. Preliminary experiments indicate an obtainable precision of appr. 1/100 ... -
Measurements of condition and growth of cod larvae reared in mesocosms: individual variability as a function of environmental condition or genetic inheritance
(ICES CM Documents;2001/V:8, Working paper, 2001)Size, dry weight and RNA/DNA measurements of 3876 cod larvae from 26 different families of recruit and repeat spawners reared in two mesocosms ( 2500m³ and 4400m³) under natural conditions were analysed. To be able to ... -
Measurements of Iceland scallop (Chlamys islandica müller) in the Spitzbergen and Bear Island regions
(ICES CM Documents;1986/K:26, Working paper, 1986)A stratified bottom trawl fish survey was carried out in the Spitzbergen and Bear Island regions from 9 September to 5 October 1985. On 30 out of 108 trawl stations, Chlamys islandica were caught as a by-catch, and ... -
Measurements of Target stength and Spatial Orientation of Euphausiids (krill).
(ICES CM Documents;1981/B:l7, Working paper, 1981) -
Measurements of the density coefficient and average target strength of herring using purse seine.
(ICES CM Documents;1982/B:33, Working paper, 1982)Integrator values were obtained from a school of herring. The fish density of this school was determined on the basis of a purse seine catch. From these values a conversion factor and average target strength for herring ... -
Measurements of the primary production and recordings of water transparency in the Norwegian Sea during May - June 1958 : Preliminary Report
(ICES CM Documents;1959/2, Working paper, 1959) -
Measurements of the Reflection of Sound by Fish
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1962) -
Measurements of underwater noise radiated by commercial ships at a cabled ocean observatory
(Journal article; Peer reviewed, 2020)Measurements of underwater noise radiated under ship normal operations are presented. The acoustic data, from the cabled ocean observatory, are analyzed under each identified ship passage, which was obtained by the Automatic ... -
Measuring Adversarial Robustness using a Voronoi-Epsilon Adversary
(Peer reviewed; Journal article, 2023)Previous studies on robustness have argued that there is a tradeoff between accuracy and adversarial accuracy. The tradeoff can be inevitable even when we neglect generalization. We argue that the tradeoff is inherent to ... -
Measuring distribution and density of sprat in Årdalsfjorden with a kayak drone - 15-16 August 2020
(Rapport fra havforskningen;2020 - 28, Research report, 2020)Sprat is a key species in several Norwegian fjords, as an important prey for fish, sea mammals and sea birds. The sprat populations are monitored with routine acoustic-trawl surveys using a large research vessel, which ... -
Measuring the effect of changes in catchability on the variance of marine survey abundance indices
(ICES CM Documents;1992/D:9, Working paper, 1992)The average catch per tow by a research vessel survey is often used as an index of abundance. An estimate of the variance of such indices that is based only on the between station variability in catch may underestimate ... -
Measuring uncertainty in trawl surveys: implementation in DATRAS
(ICES CM documents, Working paper, 2006)Abstract The basic data from several ICES coordinated trawl and beam trawl surveys in the Baltic Sea, the North Sea, the area west of Scotland and France are stored in the DATRAS database in the ICES Secretariat; every ... -
Mechanisms a ecting the transport of early stages of Norwegian Coastal Cod - a fjord study
(ICES CM documents;2008/L:16, Working paper, 2008)An increasing concern in sheries management in Norway is how the Arcto-Norwegian Cod (ANC), with its feeding habitat in the Barents Sea, is separated from or mixed with the local populations of Norwegian Coastal Cod ... -
Mechanisms and consequences of life cycle diversity of beaked redfish, Sebastes mentella
(ICES CM documents;2009/H:01, Working paper, 2009)Recent genetic research, supported by life history information, indicates that there are three biological stocks of S. mentella in the Irminger Sea and adjacent waters: a ‘Deep Pelagic’ stock (>500m), a ‘Shallow Pelagic’ ... -
Mechanisms of Ocean Heat Anomalies in the Norwegian Sea
(Journal article; Peer reviewed, 2019)Ocean heat content in the Norwegian Sea exhibits pronounced variability on interannual to decadal time scales. These ocean heat anomalies are known to influence Arctic sea ice extent, marine ecosystems, and continental ...