• norsk
    • English
  • English 
    • norsk
    • English
  • Login
View Item 
  •   Home
  • Øvrige samlinger
  • Publikasjoner fra CRIStin - NTNU
  • View Item
  •   Home
  • Øvrige samlinger
  • Publikasjoner fra CRIStin - NTNU
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

A State-Space Model for Abundance Estimation from Bottom Trawl Data with Applications to Norwegian Winter Survey

MacKean, Peter M.; Storvik, Geir Olve; Aanes, Sondre
Research report
Thumbnail
View/Open
Statreport.pdf (295.4Kb)
URI
http://hdl.handle.net/11250/2365380
Date
2015
Metadata
Show full item record
Collections
  • Institutt for matematiske fag [2246]
  • Publikasjoner fra CRIStin - NTNU [35008]
Original version
Preprint Series in Statistics. 15 p. Matematisk Institutt, UiO, 2015  
Abstract
We study a hierarchical dynamic state-space model for abundance

estimation. A generic data fusion approach for combining computer

simulated posterior samples of catch output data with observed re-

search survey indices using sequential importance sampling is pre-

sented. Posterior samples of catch generated from a computer soft-

ware are used as a primary source of input data through which sheries

dependent information is mediated. Direct total stock abundance es-

timates are obtained without the need to estimate any intermediate

parameters such as catchability and mortality. Numerical results of a

simulation study show that our method provides a useful alternative

to existing methods. We apply the method to data from the Barents

Sea Winter survey for Northeast Arctic cod (Gadus morhua). The re-

sults based on our method are comparable to results based on current

methods.
Publisher
Matematisk Institutt, UiO
Series
Preprint series. Statistical Research Report;

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit
 

 

Browse

ArchiveCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsDocument TypesJournalsThis CollectionBy Issue DateAuthorsTitlesSubjectsDocument TypesJournals

My Account

Login

Statistics

View Usage Statistics

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit