Directional Bilateral Asymmetry in Fish Otolith: A Potential Tool to Evaluate Stock Boundaries?

17282 7 94473 2 275051 document 94473 symmetry-13-00987-v2.pdf application/pdf 8f15b2b76a9a06dc4e8671e3ec24d311 MD5 3211390 2021-06-23 07:53:42 https://pure.iiasa.ac.at/id/eprint/17282/1/symmetry-13-00987-v2.pdf 17282 1 1 application/pdf text en public cc_by_4

symmetry-13-00987-v2.pdf

published 94479 1 275062 document 94479 indexcodes.txt text/x-c++ 342d3ae9db5363c466b3481a18940768 MD5 13930 2021-06-23 08:03:08 https://pure.iiasa.ac.at/id/eprint/17282/2/indexcodes.txt 17282 2 2 text/x-c++ other Generate index codes conversion from text to indexcodes en public

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/94473 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/94473 http://eprints.org/relation/issmallThumbnailVersionOf https://pure.iiasa.ac.at/id/document/94473 archive 353 disk0/00/01/72/82 2021-06-23 07:56:03 2021-08-27 17:34:55 2021-06-23 07:56:03 article show Mahé K. MacKenzie K. Ider D. Massaro A. Hamed O. Jurado-Ruzafa A. Gonçalves P. Anastasopoulou A. Jadaud A. Mytilineou C. Randon M. Elleboode R. Morell A. Ramdane Z. Smith J. Bekaert K. Amara R. de Pontual H. Ernande B. 7797 Directional Bilateral Asymmetry in Fish Otolith: A Potential Tool to Evaluate Stock Boundaries? pub prog_eep otolith shape; side effect; Fourier descriptors; stock identification; Mediterranean Sea; Atlantic Ocean; common sole; bogue The otolith, found in both inner ears of bony fish, has mainly been used to estimate fish age. Another application that has been developing significantly in recent years, however, is the use of otolith shape as a tool for stock identification. Often, studies have directly used the shape asymmetry between the right and left otoliths. We tested the magnitude of directional asymmetry between the sagittal otoliths (left vs. right) of 2991 individuals according to their catch locations, and we selected species to evaluate whether directional asymmetry may itself be a tool to evaluate stock boundaries. Elliptical Fourier descriptors were used to describe the otolith shape. We used a flatfish, the common sole (Solea solea, n = 2431), from the eastern English Channel and the southern North Sea as well as a roundfish, the bogue (Boops boops, n = 560), from the Mediterranean Sea. Both species showed significant levels of directional asymmetry between the testing locations. The bogue otoliths showed significant asymmetry for only 5 out of 11 locations, with substantial separation between two large areas: the Algerian coast and the western part of the Italian coast. The sole otoliths showed significant asymmetry in the shape analysis (3.84–6.57%), suggesting a substantial separation between two large areas: the English and French parts of the English Channel and the southern North Sea. Consequently, directional bilateral asymmetry in otolith shape is a potential new method for stock identification. 2021-06 published 10.3390/sym13060987 1238 public Symmetry 13 6 e987 TRUE 2073-8994 FALSE no info:eu-repo/semantics/article