PENGUKURAN ACOUSTICS TARGET STRENGTH IKAN SEMBILANG (Plotosus canius) SECARA TERKONTROL DENGAN MENGGUNAKAN KURUNGAN

PUTRI, VELIA AYETA and Ningsih, Ellis Nurjuliasti and Aryawati, Riris (2020) PENGUKURAN ACOUSTICS TARGET STRENGTH IKAN SEMBILANG (Plotosus canius) SECARA TERKONTROL DENGAN MENGGUNAKAN KURUNGAN. Undergraduate thesis, Sriwijaya University.

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Abstract

Target strength is the ability in describing a target to reverse waves that hit an object. The purpose of this research is to measure the target strength of Gray Eel-Catfish in controlled conditions by using cages and to analyze the relationship between the target strength and fish size. Acoustic data recording used in this research was the Biosonic DT-X Scientific Echosounder with frequency 200 kHz as controlled by using cage. The target strength measurement was done using the Tethered Method by hanging the dead fish using a monofilament rope. The results of the recording data were processed by using Echoview 5.4 Software. The target strength value of Gray Eel-Catfish that was obtained has range from -65.3 dB to -58.2 dB with fish length range from 39 cm to 56 cm. The average of target strength in eight Gray Eel-Catfish samples are -62.06 dB with an average total fish length is 43.95 cm. Based on the linear regression equation, the results of the regression equation is y = 27.285x - 107.85 with a R2 value of 0.4. The formula result for target strength value of Gray Eel-Catfish is TS = 20 Log L - 95.91

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Fish Length, Gray Eel-Catfish, Target Strength
Subjects:	S Agriculture > SH Aquaculture. Fisheries. Angling > SH334.5-334.7 Fishery technology
Divisions:	08-Faculty of Mathematics and Natural Science > 54241-Marine Science (S1)
Depositing User:	Users 7112 not found.
Date Deposited:	26 Sep 2020 07:40
Last Modified:	26 Sep 2020 07:40
URI:	http://repository.unsri.ac.id/id/eprint/35558

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