Consideration of measurement errors for the Norwegian common minke whale (Balaenoptera acutorostrata acutorostrata) surveys

A discrete measurement error model for radial distance and angle to detected objects in line transect surveys is considered. This approach directly quantifies the effect of measurement error on the estimated effective strip half-width. We apply the method to experimental data collected over the peri...

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Bibliographic Details
Published in:J. Cetacean Res. Manage.
Main Authors: Solvang, Hiroko Kato, Skaug, Hans Julius, Øien, Nils Inge
Format: Article in Journal/Newspaper
Language:English
Published: International Whaling Commission 2021
Subjects:
Vågehval
Minke whale
Linjetransekt metoder
Line Transect Survey
VDP::Matematikk og naturvitenskap: 400
VDP::Mathematics and natural scienses: 400
Balaenoptera acutorostrata
minke whale
North Atlantic
vågehval
Online Access:https://hdl.handle.net/11250/2993219
https://doi.org/10.47536/jcrm.v22i1.158
Description
Summary:A discrete measurement error model for radial distance and angle to detected objects in line transect surveys is considered. This approach directly quantifies the effect of measurement error on the estimated effective strip half-width. We apply the method to experimental data collected over the period 2008-2013 in North Atlantic both under the assumption of multiplicative and additive measurement errors. Our results indicate that the abundance estimates considering the measurement error are consistently larger than the abundance estimates without any measurement error correction. publishedVersion

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