Kelimpahan Dan Variasi Morfometrik Trichodina Sp. Pada Benih Ikan Cupang (Betta Splendens Regan) Yang Dibudidayakan Di “Enjoy Akuarium”Dukuhwaluh Kecamatan Kembaran Banyumas

Sari, Noor Shiva and Rokhmani, and Riwidiharso, Edy (2015) Kelimpahan Dan Variasi Morfometrik Trichodina Sp. Pada Benih Ikan Cupang (Betta Splendens Regan) Yang Dibudidayakan Di “Enjoy Akuarium”Dukuhwaluh Kecamatan Kembaran Banyumas. In: Prosiding Seminar Nasional FMIPA-UT 2015: Optimalisasi Peran Sains dan Teknologi Menuju Kemandirian Bangsa.

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Abstract

Trichodina sp. is the protozoan parasite that commonly infected freshwater fish fry included betta fish fry (Betta splendens Regan). The purpose of this study was to determine the abundance and morphometric variation of Trichodina sp. in betta fish fry at Betta fish farming "Enjoy Aquarium" Dukuhwaluh, Kembaran, Banyumas. The method was survey with fish fry sampling using random sampling techniques. Fish fry taken was grouped based on the size of fish fry body length were 1 to 1,9cm; 2 to 2,9 cm and 3 to 3,9 cm. Abundance was calculated for each group of fish fry size. Differences between groups abundance of fish fry size was analyzed using analysis of variance (Annova) with standard error of 1% and 5%. Measurement of morphometric characteristics of Trichodina sp. was performed by sampling technique from each infected fish fry. Morphometric variation data of Trichodina sp. were analyzed descriptively. The results showed that as many as 98 fry Betta fish were examined,23 fish fries were infected with Trichodina sp. The number of Trichodina sp. found was as many as 162 individuals from the infected fish. Total abundance of Trichodina sp. in Betta’s fry fish was 1,65 individuals/fish that was classified as low. Each abundance of Trichodina sp. in fish of 1-1,9 cm; 2-2,9 cm and 3-3,9 cm were 4,31 individuals/fish; 1,05 individuals/fish and 0,21 individuals/fish respectively. The highest abundance of Trichodina sp. was found in fish of 1-1.9 cm. The results of analysis of variance showed that the abundance of Trichodina sp. was significantly different between groups (P<0,05). The measurement results of morphological characters of Trichodina sp. showed that body diameter ranged from 47.5-82.5 μm; denticle ring diameter 20-37.5 μm; denticle number 12-24; number of radial pins per denticle 9-10 and width membrane 2.5-7.5 μm. Trichodina sp. found were suspected from three types of Trichodina sp. namely T. heterodentata, T. nigra and T. pediculus.

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