Browsing Brage IMR by Author "Tjelmeland, Sigurd"
Now showing items 1-20 of 54
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A quest for management objectives – case study on the Barents Sea Capelin
Røttingen, Ingolf; Tjelmeland, Sigurd (ICES CM documents;2008/O:08, Working paper, 2008)The Barents Sea capelin is a short lived arctic pelagic species and a shared Norwegian-Russian stock. Although the management objectives for Barents Sea capelin have not been explicitly stated, the management authorities ... -
The capelin assessment model: a documentation
Tjelmeland, Sigurd (PINRO-IMR Symposium, Conference object, 1985)The mathematical model used for management of the Barents Sea is documented. The model is used for predicting the evolution of the stock to evaluate the consequence of various catch quotas. -
Cod Consume Capelin
Johannesen, Edda; Johansen, Geir Odd; Bogstad, Bjarte; Mehl, Sigbjørn; Tjelmeland, Sigurd; Dolgov, Andrey V. (Working paper, 2006) -
The construction of a multi-species model for the Barents Sea with special references to the cod-capelin interactions [fra foredrag på "a workshop on comparative biology, assessment and management of gadoids from the North Pacific and Atlantic oceans" 24-28 June, 1985 Seattle, Washington]
Mehl, Sigbjørn; Nakken, Odd; Tjelmeland, Sigurd; Ulltang, Øyvind (Proceedings: Part III, Conference object, 1986) -
The dependence of management strategies for Barents Sea cod and capelin on the recruitment models
Tjelmeland, Sigurd (PINRO-IMR Symposium, Conference object, 1995)The least studied subject in the assessment and management of Barents Sea cod and capelin is the management strategy. Using a cod-capelin-herring model, the uncertainty in the management strategy of cod and capelin arising ... -
Ecosystem approach to estimation of long-term yield of cod in the Barents Sea
Filin, Anatoly; Tjelmeland, Sigurd (IMR/PINRO Joint Report Series, Conference object, 2005) -
Ecosystem approach to estimation of long-term yield of cod in the Barents Sea
Filin, Anatoly; Tjelmeland, Sigurd (IMR/PINRO Joint Report Series, Conference object, 2005) -
Ecosystem approach to estimation of long-term yield of cod in the Barents Sea [presentation]
Filin, Anatoly; Tjelmeland, Sigurd (IMR/PINRO Joint Report Series;2/2005, Conference object, 2005) -
Ecosystem approach to estimation of long-term yield of cod in the Barents Sea [presentation]
Filin, Anatoly; Tjelmeland, Sigurd (IMR/PINRO Joint Report Series;2/2005, Conference object, 2005) -
Ecosystem dynamics and fisheries management in the Barents sea
Filin, Anatoly; Tjelmeland, Sigurd; Stiansen, Jan Erik (IMR/PINRO Joint Report Series;5/2007, Conference object, 2007) -
Ecosystem dynamics and fisheries management in the Barents sea
Filin, Anatoly; Tjelmeland, Sigurd; Stiansen, Jan Erik (IMR/PINRO Joint Report Series;5/2007, Conference object, 2007) -
Ecosystem dynamics and fisheries management in the Barents sea [presentation]
Filin, Anatoly; Tjelmeland, Sigurd; Stiansen, Jan Erik (IMR/PINRO Joint Report Series;5/2007, Conference object, 2007) -
Ecosystem dynamics and fisheries management in the Barents sea [presentation]
Filin, Anatoly; Tjelmeland, Sigurd; Stiansen, Jan Erik (IMR/PINRO Joint Report Series;5/2007, Conference object, 2007) -
The effect of ambient temperature on the spawning migration of capelin
Tjelmeland, Sigurd (PINRO-IMR Symposium, Conference object, 1987)The model presently in use for management of the Barents Sea capelin stock may be considerably improved by utilization of biological information from the spawning stock. The distributions of length and age for capelin ... -
Estimating initial stomach content using stochastic simulation
Tjelmeland, Sigurd; Alvarez, Jaime (ICES CM Documents;1994/G:16, Working paper, 1994)The stomach evacuation model now in use when quantifying the predation from cod on Barents Sea capelin assumes that the evacuation rate is dependent on the stomach fullness after the last meal, which is not known in the ... -
Estimation of predation mortalities on capelin using a cod - capelin model for the Barents Sea
Bogstad, Bjarte; Tjelmeland, Sigurd (ICES CM Documents;1990/H:16, Working paper, 1990)The Barents Sea capelin stock collapsed during the period 1983-1986. One of the main factors causing the collapse was a rapid increase in consumption of capelin by cod. Based on measurements of stomach evacuation rates ... -
Evaluation of long-term optimal exploitation of cod and capelin in the Barents Sea using the bifrost model
Tjelmeland, Sigurd (IMR/PINRO Joint Report Series, Conference object, 2005) -
Evaluation of long-term optimal exploitation of cod and capelin in the Barents Sea using the bifrost model
Tjelmeland, Sigurd (IMR/PINRO Joint Report Series, Conference object, 2005) -
Harvesting control rules and future development of the precautionary approach: Northeast arctic cod as an example
Tjelmeland, Sigurd; Tretyak, Viktor (IMR/PINRO Joint Report Series, Conference object, 2002) -
Harvesting control rules and future development of the precautionary approach: Northeast arctic cod as an example
Tjelmeland, Sigurd; Tretyak, Viktor (IMR/PINRO Joint Report Series, Conference object, 2002)