| Issue |
BIO Web Conf.
Volume 112, 2024
6th EMBRIO International Symposium: “Ocean for Prosperity: Sustainably Use of the Ocean Resources for Economic Growth, Improvement of Livelihoods, and Preserve its Ocean Ecosystem Health” (EIS 2023)
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| Article Number | 04003 | |
| Number of page(s) | 13 | |
| Section | Fish Ecobiology | |
| DOI | https://doi.org/10.1051/bioconf/202411204003 | |
| Published online | 06 June 2024 | |
Morphometric relationship of otolith, length, and weight of rainbow runner, Elagatis bipinnulata (Quoy and Gaimard, 1825) from Gunungkidul Coastal Waters
1 Department of Fisheries, Faculty of Agriculture, Gadjah Mada University. Jalan Flora Building A4, Bulaksumur, Yogyakarta, Indonesia. 555281.
2 State Senior High School 1 Depok Sleman, Depok, Sleman, Yogyakarta, Indonesia. 55283
* Corresponding author: lely4192@yahoo.com
Rainbow runner, a high-value commodity caught by fishermen in southern Java, is not the main catch target. This research aimed to determine the morphological characteristics and morphometric relationship of otoliths with the length-weight of fish in rainbow runner. A total of 120 individual samples taken in October-November consisting of 68 females and 52 males from local fishermen at Sadeng Coastal Fishing Port were extracted and measured according to the Otolith shape index method with six descriptors: Form Factor (FF), Roundness (RO), Rectangularity (Rt), Circularity (C), and Aspect Ratio (AR). The otoliths were tested using the T-test, and the results showed substantial differences in the width, area, and periphery of the left and right otoliths. The results of the regression test showed that the highest relationship was between the weight of the otolith and the length of the rainbow runner, which had an R-value of 0.70, and the relationship between the weight of the otolith and the weight of the rainbow runner had an R-value of 0.51. Rainbow runner otoliths have an irregular surface, are not circular, and tend to be elongated. Otolith size varies between species, influenced by differences in calcium carbonate deposition rates, growth, age, and environmental factors.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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