DETERMINATION OF SAGITTAL OTOLITH BIOMETRY AND BODY SIZE OF Serranus cabrilla (Linnaeus, 1758) DISTRIBUTED IN SOUTHERN AEGEAN SEA
Abstract
Fish otoliths are generally used to determine taxon, age and size of the teleost fishes and are useful tools for studies of prey-predator relationships, population dynamics and ichthyo-archaeology. In the present study, the equations for the relationships were calculated between fish length (TL), weight (W) versus sagittal otolith length (OL), height (OH) and weight (OW) in comber (Serranus cabrilla, Linnaeus, 1758) specimens (N=310, 95–225 mm in TL and 7.54–111.27 g) captured via bottom trawl vessels from off the Güllük Bay (Southern Aegean Sea) between January and December 2013. Since there has been no statistical differences between left and right otoliths (p>0.05), left otoliths were used for calculations. Regression formulas were calculated as follows: TL=28.75*OL–22.31, TL=64.36*OH–6.808, TL=2380*OW0.640, W=0.056*OL3.618, W=2.029*OH3.254, W=5168*OW–28.33, OH=0.414*OL–0.054, OW=0.0000053*OL1.542, and OW=0.003*OH1.382. The aim of this study is to fill in the missing data concerning otolith and fish size relationships of the species in the southern Aegean Sea, thereby providing researchers studying food habits of top predators to determine the size and weight of prey fish from length or weight of recovered otoliths.
Keywords
References
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Details
Primary Language
English
Subjects
Hydrobiology
Journal Section
Short Communication
Authors
Gökçen Bilge
*
Muğla Sıtkı Koçman University, Faculty of Fisheries, Kötekli, Muğla
0000-0001-9072-8350
Türkiye
Halit Filiz
Muğla Sıtkı Koçman University, Faculty of Fisheries, Kötekli, Muğla
0000-0003-0096-6123
Türkiye
Publication Date
February 24, 2018
Submission Date
January 23, 2018
Acceptance Date
February 20, 2018
Published in Issue
Year 2018 Volume: 1 Number: 2