Article Per Year (5 Year)
p-Index From 2021 - 2026
0
P-Index
This Author published in this journals
All Journal Jurnal Perikanan Universitas Gadjah Mada
Tridjoko Tridjoko
Balai Besar Riset Perikanan Budidaya Laut
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Pemeliharaan Larva Kerapu Bebek (Cromileptes altivelis) dengan Konsentrasi Pewarna Hijau Media Air yang Berbeda Suko Ismi; Wardoyo Wardoyo; Ketut Setyawati; Tridjoko Tridjoko; Jhon H. Hutepea
Jurnal Perikanan Universitas Gadjah Mada Vol 8, No 2 (2006)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.153

Abstract

The purpose of this research was to find the optimum color concentration of water for larval rearing of humbpback grouper (Cromileptes altivelis). The experiment conducted using 12 polycarbonat tanks with volume of 200 l. Initial density of larvae was 10 ind/l. Food grade coloring agent was used to result a green color water solution.  Four different water color concentration were tested as treatments i.e.: A 10 ppm; B 20 ppm ; C 30 ppm and D 40 ppm with three replications. The experiment was conducted for 30 days. The result showed that the highest survival rate was exhibited by C treatment (30 ppm) (P<0.05), the B (20 ppm) and D (40 ppm) treatments were significantly different (P<0.05) compare to A (10 ppm.) The survival rates of larvae at the end of experiment were A (8.2%); B (25.6%); C (40.4%) and D (29.3%).
INVENTARISASI DAN PENGENDALIAN PENYAKIT PARASIT PADA INDUK IKAN LAUT DI BAK PEMELIHARAAN Bejo Slamet; Tridjoko Tridjoko; Agus P.; T. Setiadharma; N. A. Giri; K. Suwirya
Jurnal Perikanan Universitas Gadjah Mada Vol 10, No 2 (2008)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.8906

Abstract

Observation on parasitic diseases had been conducted in Gondol Research Institute for Marine culture on mild fish (Chanos chanos), seabass (Lates calcarifer), tiger grouper (Epinephelus fuscoguttatus), humpback grouper (Cromileptes altivelis), mangrove grouper (E. coioides), camouflage grouper (E. microdon), coral trout (Plectropoma leopardus, P. maculatus), snappers (Lutjanus argentimaculatus, L. seabae) and napoleon wrasse (Cheilinus undulatus) rearing in captivity. The result showed that Cryptocaryon irritans was found on napoleon wrasse and humpback grouper; Amyloodinium ocellatum was found only on napoleon wrasse; Gill flukes (Haliothrema sp. dan Diplectanum sp. ) was found on humpback grouper and mangrove grouper; skin flukes Neobenedenia sp. was found only on napoleon wrasse and Benedenia was found on all grouper, snapper and seabass; Crustacea (Rhexanella sp.) and copepod (Caligus sp. and Lepeophtheirus sp.) was found on all grouper, snapper and seabass; Hirudinae (Zeylanicobdella arugamensis ) was found on all grouper, snapper and seabass.
Co-Authors Agus P. Bejo Slamet Jhon H. Hutepea K. Suwirya Ketut Setyawati N. A. Giri Suko Ismi T. Setiadharma Wardoyo Wardoyo