Fisheries Biology and Management - Poster Presentations
DETERMINATION OF RELATIONSHIP BETWEEN OTOLITH BIOMETRY AND FISH LENGTH OF Nemipterus randalli RUSSELL, 1986 DISTRIBUTED IN GÖKOVA BAY, TURKEY Umut UYANa, Halit FĠLĠZa, Gökçen BĠLGEa, Özgen YILMAZb, Sercan YAPICIa a b
Faculty of Fisheries, Mugla Sitki Kocman University Mugla, Turkey Biology Department, Mugla Sitki Kocman University Mugla, Turkey
[email protected]
Objective: In the current study, it was aimed to reveal relationships between otolith length, width and weight, and fish length and weight of Nemipterus randalli which is a lessepsian fish species and distributed in Gökova Bay, Turkey. Methods: 96 specimens of N. randalli were obtained from Akyaka Fisheries Cooperative between November 2015 and June 2016, and were transported to laboratory on ice. First, total length (TL) of fish was measured to the nearest 0.1 cm. Fish and otolith weight were measured by using digital balance to the nearest 0.0001 g. For measuring, left and right sagittal otolith were removed and length and width measurements were taken under a stereo microscope equipped with 10 µm of micrometric ocular. Differences between left and right otolith were tested by paired t-test (using STATISTICA v8) Results and Discussion:Mean length measurements of left and right otoliths (OL) were 7.33-7.32 mm, respectively and those for otolith weights (OWe) were 0.036180.04220 g, respectively and no significant differences were observed (t-test, P>0.05), otolith widths (OW) were 4.87-4.84 mm while left otolith width was found to be bigger than that of right, and the statistical difference between the width measurements of otoliths of either sides was significant (t-test, P0.05), otolith widths (OW) were 4.87-4.84 mm while left otolith width was found to be bigger than that of right, and the statistical difference between the width measurements of otoliths of either sides was significant (t-test, P
