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Journal : AGRICOLA

Pertumbuhan dan Faktor Kondisi Ikan Gabus (Chana striata Bloch, 1793) Sunarni, Sunarni; Elviana, Sisca; Wairara, Stenly Suryani
AGRICOLA Vol 11 No 1 (2021): AGRICOLA
Publisher : Universitas Musamus, Merauke, Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35724/ag.v11i1.3059

Abstract

This study aims to analyze the growth and condition factors of Snakehead fish (Channa striata Bloch, 1793) caught in the waters of the Wasur swamp, Merauke district. The research was conducted in September-November 2020 in the Wasur swamp waters. The method used is descriptive method with purposive sampling technique. The data analysis used was the long-weight relationship data to determine the growth pattern of snakehead fish and condition factors. The results of the research at the two stations in September and October showed the same growth pattern, namely negative issometric and allometric, while in November station I was allometric negative and station II was issometric. The value of the condition factor at the two stations in September, October and November ranged from 1.003 to 1.006, including in the not fat category.
Analisis Pertumbuhan dan Tingkat Kematangan Gonad Ikan Buntal (Tetraodon Fluviatilus) Sunarni, Sunarni; Elviana, Sisca; Wairara, Stenly M.B.S
AGRICOLA Vol 10 No 2 (2020): AGRICOLA
Publisher : Universitas Musamus, Merauke, Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35724/ag.v10i2.3066

Abstract

The aim of this study was to analyze the growth and maturity level of puffer fish (Tetraodon fluviatilus). This research was conducted in October-December 2017. The research site consisted of two places, namely sampling conducted in two locations of the brackish waters of Merauke Regency while the analysis and identification of growth and maturity level of the gonads was carried out in the laboratory of Department of Aquatic Resources Management, Universitas Musamus. Sampling was conducted at Lampu Satu Beach (station I) and Payum beach (station II) using descriptive methods and survey techniques. Sampling was carried out six times at each station for three months. To find out the growth and maturity level of pufferfish gonads, an analysis of growth patterns, condition factors, sex ratio and gonad maturity levels was performed. The results of the study showed that the growth of puffer fish at Station I was negative allometric while at Station two it was positive allometric. The mean value of the puffer fish condition at Station I was 0.0499 while that at Station II was 0.7062. Gonadal maturity level (TKG) at station I and II are at TKG I, at station I is 79.04% while at station II is 69.77%. Based on the results of research conducted it can be concluded that the growth patterns and TKG at Station I are better than Station II.
Variabilitas Peubah Tanah Tambak Budidaya Udang Anugriati, Anugriati; Elviana, Sisca
AGRICOLA Vol 10 No 2 (2020): AGRICOLA
Publisher : Universitas Musamus, Merauke, Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35724/ag.v10i2.3216

Abstract

Variability of pond soil variables has an important role in many bio-environmental systems includingthe pond environment. This study aims to determine the variables of pond land. Determination ofmeasurement points and soil sampling is done randomly at 67 sample points. A total of 11 soilchemical characteristics were measured in the field and analyzed in the laboratory. The resultsshowed that in general, the type of soil in the pond area was alluvial soil with non-sulfuric acid. Theaverage negative potential for pond soil redox is -102 mV. The C-organic content of pond soil variesfrom 0,51 to 2,72% with an average of 1.60%, the PO4 content in pond soil is classified as low,between 3,27 and 53,01 ppm with an average of 20,75 ppm, meanwhile, the content of toxic elementssuch as Fe and Al in the ponds is classified as low, with an average of 529,6 and 205,0 ppm