Browsing Havforskningsinstituttet by Title
Now showing items 3915-3934 of 11576
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Individual growth rate and age at sexual maturity in rainbow trout
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1979)Growth rate possible connection between growth rate and age at sexual maturity were studied on individually tagged rainbow trout from different sib groups. Considerable variation in growth rate and age at first sexual ... -
Individual-based modeling of feeding ecology and prey selection of larval cod on Georges Bank
(Journal article; Peer reviewed, 2009-02-11)Understanding larval fish survival dynamics is essential to determining variability in future adult population structure. Realistic modeling of larval fish feeding ecology depends on incorporating both the biotic and abiotic ... -
Induced deformities on larvae of the Atlantic halibut (Hippoglossus hippoglossus L.). A new experimental approach.
(ICES CM Documents;1990/F:45, Working paper, 1990)Introduction: The atlantic halibut is viewed as a promising species for cold water aquaculture, and have been subjected to extensive research efforts both in Norway and in U.K. the later years. As the biology, and ... -
Industrial Fisheries Working Group [ICES headquarters, 23 February -1 March, 1983]
(ICES CM Documents;1983/Assess:7, Working paper, 1983) -
Industrial Fisheries Working Group [ICES headquarters, 7 -13 March, 1984]
(ICES CM Documents;1984/Assess:9, Working paper, 1984) -
Industritrålfisket i Nordsjøen: En studie i hvordan utbyttet kan økes ved hjelp av reguleringer uten at kvoten på torsk, hyse og hvitting overskrides
(Fisken og havet - Serie B, Working paper, 1977) -
Infant iodine status and associations with maternal iodine nutrition, breastfeeding status and thyroid function
(Peer reviewed; Journal article, 2022)Adequate iodine nutrition during infancy is required for normal thyroid function and, subsequently, brain development. However, data on infant iodine status in the first year of life are scarce. This study aimed to describe ... -
Infaunal and epifaunal secondary production in the BarentsSea, with focus on snow crab (Chionoecetes opilio)preyresources and consumption
(Peer reviewed; Journal article, 2022)Since the first observation of snow crab (Chionoecetes opilio) in the Barents Sea in 1996, the population has increased significantly, supporting a commercial fishery on the Norwegian shelf since 2012. To investigate whether ... -
The infection cycle of Marteilia pararefringens in blue mussels, Mytilus edulis, in a heliothermic marine oyster lagoon in Norway.
(Peer reviewed; Journal article, 2022)Agapollen is a traditional heliothermic marine oyster lagoon in western Norway, representing the northernmost site of any Marteilia sp. protists detected in Europe. The semi-closed lagoon is a unique site to study the life ... -
Infection dynamics and tissue tropism of Parvicapsula pseudobranchicola (Myxozoa: Myxosporea) in farmed Atlantic salmon (Salmo salar)
(Peer reviewed; Journal article, 2018) -
Infection of wild fishes by the parasitic copepod Caligus elongatus on the south east coast of Norway
(Journal article; Peer reviewed, 2007-09-14)Natural Caligus elongatus Nordmann infections of wild coastal fishes on the Norwegian south east coast were monitored at various times of the year from 2002 to 2004. The prevalence for all coastal fish (n = 4427) pooled ... -
Infection success of salmon lice related to temperature and implications for regional size of salmon production areas
(ICES CM Documents;2002/T:1, Working paper, 2002)The development rate for salmon lice larvae is highly temperature-dependent. Hence, the time from hatching of nauplii to an infectious copepodid will vary with the natural cycles in the sea. The salmon lice life span is ... -
Inferences regarding predation on the early life stages of cod and other fishes. In: The propagation of cod Gadus morhua L.: an international symposium, Arendal, 14 - 17 June 1983
(Flødevigen rapportserie, Conference object, 1984)Little information exists on the predation on the early life stages of marine fish in general and even less on cod. Thus the approach used in this review was to infer the predatory processes that may be significant in ... -
Inferring Atlantic salmon post-smolt migration patterns using genetic assignment
(Journal article; Peer reviewed, 2019)Understanding migratory patterns is important for predicting and mitigating unwanted consequences of environmental change or anthropogenic challenges on vulnerable species. Wild Atlantic salmon undergo challenging migrations ... -
Inferring ecological separation from regional differences in radioactive caesium in harbour porpoises Phocoena phocoena
(Journal article; Peer reviewed, 2002-03-06)Geographic variation in the level of radioactive caesium-137 (Cs-137) was examined from the axial muscle of 36 harbour porpoises Phocoena phocoena obtained as bycatch from 5 locations along the coast of Norway, ranging ... -
Inferring fish behaviour at the trawl mouth from escape location
(Peer reviewed; Journal article, 2023)In this study, we used escape location underneath the trawl to understand groundfish herding behaviour at the trawl mouth. Three collecting bags (port, center, starboard) were mounted under the trawl and behind the footgear ... -
Inferring genetic connectivity in real populations, exemplified by coastal and oceanic atlantic cod
(Journal article; Peer reviewed, 2018)Genetic data are commonly used to estimate connectivity between putative populations, but translating them to demographic dispersal rates is complicated. Theoretical equations that infer a migration rate based on the genetic ... -
Inferring genetic connectivity in real populations, exemplified by coastal and oceanic Atlantic cod
(Journal article; Peer reviewed, 2018)Genetic data are commonly used to estimate connectivity between putative populations, but translating them to demographic dispersal rates is complicated. Theoretical equations that infer a migration rate based on the genetic ... -
Inferring individual fate from aquatic acoustic telemetry data
(Peer reviewed; Journal article, 2020)Acoustic telemetry has become a popular means of obtaining individual behavioural data from a wide array of species in marine and freshwater systems. Fate information is crucial to understand important aspects of population ... -
Influence of bottom topography on the circulation at the continental shelf off northern Norway
(Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1984)The three banks Sveinsgrunnen, Malangsgrunnen and Nordvestbanken, which lie off the coast of northern Norway, are separated by troughs. Synoptic hydrographic surveys and data from satellite-tracked buoys drogued in the ...