A stochastic length-based assessment model for the Pandalus stock in Skagerrak and the Norwegian Deep

Anders Nielsen; Sten Munch-Petersen; Ole Ritzau Eigaard; Guldborg Søvik; Mats Ulmestrand

A stochastic length-based assessment model for the Pandalus stock in Skagerrak and the Norwegian Deep

Anders Nielsen, Sten Munch-Petersen, Ole Ritzau Eigaard, Guldborg Søvik, Mats Ulmestrand

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Abstract

This working document describes a length based stochastic assessment model of Pandalus in ICES areas IIIA and IVA. The model describing stock development is age based, but the model also estimates the relation between age and length assuming a von Bertalany growth curve. The model presented in this paper is based on the assessment data presented at the 2012 NIPAG meeting, but with updated survey information. Also the estimates shown here are based on equal standard deviations for survey and catch L = (c) L , which is the natural assumption, as this parameter describes the standard deviation of the length distribution in the population

Original language	English
Journal	Scientific Council Research Documents NAFO
Volume	13/074
Number of pages	12
ISSN	0256-6915
Publication status	Published - 2013
Event	35th Scientific Council Research Meeting NAFO - Nova Scotia, Canada Duration: 23 Sept 2013 → 27 Sept 2013

Conference

Conference	35th Scientific Council Research Meeting NAFO
Country/Territory	Canada
City	Nova Scotia
Period	23/09/2013 → 27/09/2013

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http://archive.nafo.int/open/sc/2013/scr13-074.pdf

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title = "A stochastic length-based assessment model for the Pandalus stock in Skagerrak and the Norwegian Deep",

abstract = "This working document describes a length based stochastic assessment model of Pandalus in ICES areas IIIA and IVA. The model describing stock development is age based, but the model also estimates the relation between age and length assuming a von Bertalany growth curve. The model presented in this paper is based on the assessment data presented at the 2012 NIPAG meeting, but with updated survey information. Also the estimates shown here are based on equal standard deviations for survey and catch L = (c) L , which is the natural assumption, as this parameter describes the standard deviation of the length distribution in the population",

author = "Anders Nielsen and Sten Munch-Petersen and Eigaard, {Ole Ritzau} and Guldborg S{\o}vik and Mats Ulmestrand",

year = "2013",

language = "English",

volume = "13/074",

journal = "Scientific Council Research Documents NAFO",

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T1 - A stochastic length-based assessment model for the Pandalus stock in Skagerrak and the Norwegian Deep

AU - Nielsen, Anders

AU - Munch-Petersen, Sten

AU - Eigaard, Ole Ritzau

AU - Søvik, Guldborg

AU - Ulmestrand, Mats

PY - 2013

Y1 - 2013

N2 - This working document describes a length based stochastic assessment model of Pandalus in ICES areas IIIA and IVA. The model describing stock development is age based, but the model also estimates the relation between age and length assuming a von Bertalany growth curve. The model presented in this paper is based on the assessment data presented at the 2012 NIPAG meeting, but with updated survey information. Also the estimates shown here are based on equal standard deviations for survey and catch L = (c) L , which is the natural assumption, as this parameter describes the standard deviation of the length distribution in the population

AB - This working document describes a length based stochastic assessment model of Pandalus in ICES areas IIIA and IVA. The model describing stock development is age based, but the model also estimates the relation between age and length assuming a von Bertalany growth curve. The model presented in this paper is based on the assessment data presented at the 2012 NIPAG meeting, but with updated survey information. Also the estimates shown here are based on equal standard deviations for survey and catch L = (c) L , which is the natural assumption, as this parameter describes the standard deviation of the length distribution in the population

M3 - Conference article

SN - 0256-6915

VL - 13/074

JO - Scientific Council Research Documents NAFO

JF - Scientific Council Research Documents NAFO

T2 - 35th Scientific Council Research Meeting NAFO

Y2 - 23 September 2013 through 27 September 2013

ER -

A stochastic length-based assessment model for the Pandalus stock in Skagerrak and the Norwegian Deep

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