Reassembling broken otoliths for population discrimination

Citation

Bardarson H, McAdam BJ, Petursdottir G & Marteinsdottir G (2013) Reassembling broken otoliths for population discrimination. ICES Annual Science Conference 2013, Reykjavik, Iceland, 23.09.2013-27.09.2013. http://www.ices.dk/news-and-events/asc/ASC-2013/Pages/default.aspx

Abstract
Twenty five Atlantic cod Gadus morhua otoliths were examined using eight shape measurements along with Fourier analysis of their outlines to test whether discrimination using otolith shape is affected by reassembling broken otoliths. Small differences in seven of the eight shape measurements were found between unbroken otoliths and the same otoliths after breaking and subsequently gluing together; however, none of the Fourier descriptors differed. Cluster analyses indicated that resultant morphological differences will have no impact when applying discriminant analysis.

Notes
Output Type: Poster