Back-Calculation of Total Lengths of Luciobarbus mystaceus (Pallas, 1814) from Scale and Otolith Measurements
Abstract
In this study, the total lengths of Luciobarbus mystaceus species at previous ages were estimated from scale and otolith lengths by using back-calculation methods. For this purpose, 20 fish samples with 4-7 years in age, 37.1-47.4 cm in total length and 426.1-874.1 g in weight were obtained from a commercial fisherman in Keban Dam Lake. By using the back-calculation methods, the mean total length values for each ages calculated from scale lengths and otolith lengths were calculated as L1=7.7, L2=14.9, L3=21.4, L4=28.1, L5=30.3, L6=33.5, L7=35.7 cm and L1=7.5, L2=14.5, L3=19.2, L4=26.3, L5=29.6, L6=33.3, L7=33.9 cm respectively. The total lengths of fish calculated from scale and otolith measurements for all age groups were always determined smaller than observed total lengths of fish. There was a significant differences between calculated and observed lengths, but did not differ between total fish lengths calculated from scale and otolith measurements.
Keywords
References
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Details
Primary Language
English
Subjects
Engineering
Journal Section
Research Article
Publication Date
March 15, 2019
Submission Date
January 3, 2019
Acceptance Date
January 26, 2019
Published in Issue
Year 2019 Volume: 14 Number: 1