Browsing Havforskningsinstituttet by Subject "cod"
Now showing items 1-20 of 358
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Abundance and mortality of Northeast Arctic cod and haddock during their first years of life
(ICES CM Documents;2010/C:04, Working paper, 2010)For Northeast Arctic cod and haddock in the Barents Sea, long time series of year-class abundance are available at several stages before they recruit to the fishery, i. e. before they reach age 3. Several studies have ... -
Abundance indices for the arcto-norwegian cod in 1979-1986 based on larvae investigations [HELP 5]
(help, Research report, 1987) -
Accumulation and disposal of some byproducts from vinylchloride production in cod liver
(ICES CM Documents;1971/E:10, Working paper, 1971) -
Acoustic abundance estimate of 0-group north-east Arctic cod and haddock
(ICES CM Documents;1997/BB:15, Working paper, 1997)The abundance of the 1991-1994-year classes of north-east Arctic cod and haddock at the age of six month have been estimated on the basis of Norwegian acoustic data from the International 0-group fish survey in the Barents ... -
Acoustic and Bottom Trawl Surveys; How Much Information Do They Provide for Assessing the Northeast Arctic Cod Stock?
(ICES CM documents, Working paper, 1999)Acoustic and bottom trawl surveys of the Northeast Arctic cod stock provide fishery independent estimates of trends in abundance and population characteristics. Given the recent uncertainties in the catch based assessment ... -
Acoustic data collected during and between bottom trawl stations: consistency and common trends
(Journal article; Peer reviewed, 2007)Acoustic data are often collected during bottom trawl surveys. Their use can potentially improve the precision and accuracy of fish abundance estimates if acoustic data collected between trawl stations are consistent with ... -
Acoustic estimates of spawning cod off Lofoten in 1986
(ICES CM Documents;1986/G:79, Working paper, 1986)The annual survey on the spawning stock of North-east Arctic cod were carried out in the Lofoten area in March 1986. This survey was undertaken to estimate the size and age structure of the spawning cod on the main ... -
Akustisk mengdemåling av sei, kysttorsk og hyse : Finnmark - Møre hausten 2009
(Toktrapport;Nr. 11 - 2009, Working paper, 2009) -
Akustisk mengdemåling av sei, kysttorsk og hyse : Finnmark - Møre hausten 2010
(Toktrapport/Havforskningsinstituttet;Nr. 9 - 2010, Working paper, 2010) -
An evaluation of the IMR Summer Bottom Trawl Survey in the Barents Sea
(ICES CM Documents;2001/P:16, Working paper, 2001)Summary: A committee was formed to evaluate the Institute of Marine Research summer survey in the Barents Sea, which has been conducted annually since 1995. The primary focus of the committee was the survey’s importance ... -
The application of tank experiments to the study of reproductive potential in teleosts using Gadus morhua as a test model
(ICES CM documents, Working paper, 2000)Age-based population assessments (VPA) have often failed to show a clear relationship between spawning stock biomass and either recruitment or biomass estimated from annual egg production. Recent work has shown that the ... -
Assessing changes in age and size at maturation in collapsing populations of Atlantic cod (Gadus morhua)
(Journal article; Peer reviewed, 2005)By estimating probabilistic reaction norms for age and size at maturation, we show that maturation schedules of Atlantic cod (Gadus morhua) off Labrador and Newfoundland shifted toward earlier ages and smaller sizes ... -
Assessing the precision of the estimated age distribution of the commercial catch of Northeast Arctic cod
(ICES CM documents, Working paper, 2001)The assessment of Northeast Arctic cod is based on estimates of the commercial catch numbers at age. The age structure of the catch is estimated by sampling individuals from commercial fishing trips. Though it is commonly ... -
Assessments of the Arcto-Norwegian cod stock : The yield and size of the mature stock versus fishing pattern, fishing effort, natural mortality and mesh size
(ICES CM Documents;1975/F:34, Working paper, 1975) -
Avoidance from petroleum hydrocarbons by the cod (Gadus morhua)
(ICES CM Documents;1982/E:56, Working paper, 1982) -
B2 protein from betanodavirus is expressed in recently infected but not in chronically infected fish
(Journal article; Peer reviewed, 2009-02-12)Betanodavirus infects both larvae and juvenile fish and can cause the disease viral encephalopathy and retinopathy (VER). During an acute outbreak of VER, infected individuals display several clinical signs of infection, ... -
Behavioural rhythm of cod during migration in the Barents Sea
(ICES CM Documents;2000/K:34, Working paper, 2000)To assess fish abundance by direct methods and to understand and model species interaction, it is important to have proper knowledge about behavioural patterns. Patterns in vertical distribution might strongly affect ... -
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