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UJI DAYA HAMBAT EKSTRAK Chaetoceros calcitrans TERHADAP BAKTERI Aeromonas salmonicida Maftuch, Mr.; Setyawan, Febby Hadi; Suprastyani, Heny
JFMR (Journal of Fisheries and Marine Research) Vol. 2 No. 1 (2018): JFMR
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2018.002.01.6

Abstract

The impact of use antibiotic can cause problems on aquaculture such as bacterial resistance and residues for consumer. Therefore, one of alternatives that can be used to inhibit or kill bacteria, one of which is the use of plankton Chaetoceros calcitrans. This research aims to know the influence of the granting C. calcitrans extract that can inhibit or kill bacteria and know the best dose for inhibit A. salmonicida bacteria. The experiment method  used randomize completely design consist of four treatment and two control. A treatment (0.3 ppm), B treatment (15.3 ppm), C treatment (30.3 ppm),  D treatment (45.3 ppm), positive control (add chlorampenicol 5ppm) and negative control (without extract). The result of research showed the highest average of clear zone diameter in D treatment 5.37 mm and the lowest average of clear zone diameter in A treatment 2.89 mm, with linear equation y = 3.2067 + 0.0509x and coefficients R2 = 0.9262. The relationship between C. calcitrans extract in inhibitng gwoth of A. salmonicida bacteria showed that the average diameter of the clear zone has increase in line with the addition of extracts. Form the research showed that the extract of C. calcitrans was bacteriostatic (inhibits the growth of bacteria) and best obtained at the treatment dosage of D with a dose of 45.3 ppm and included into the category of middle.
The effect of the color of the rearing container on the growth and survival of tambaqui (Colossoma macropomum) Fikri, Andrian; Febri, Suri Purnama; Komariyah, Siti; Maulida, Cici; Aprita, Ika Rezvani; Nazlia, Suraiya; Setyawan, Febby Hadi; Pulungan, Ahyar; Widya, Devita Aristya Sri
Jurnal Perikanan Terpadu Vol 6, No 2 (2025): Jurnal Perikanan Terpadu Volume 6 Nomor 2
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jpterpadu.v6i2.13502

Abstract

Tambaqui (Colossoma macropomum) is a commodity with high economic value because it is a consumption fish. The purpose of this study was to analyze the effect of different colors of rearing containers on the growth and survival of freshwater pomfret fry. The method used in this study was an experimental method with 4 treatments repeated 3 times. In each treatment, a different color was given: P1 = transparent (control), P2 = black, P3 = blue, P4 = green. The results of these treatments significantly affected absolute weight growth, absolute length growth, and daily growth rate. Meanwhile, the survival rate and feed conversion ratio did not have a significant difference. The highest absolute weight growth was found in P3 at 13,67g, while the lowest absolute weight growth was found in P1 at 8,75g. The highest absolute length growth was found in P3 at 3,49cm, while the lowest absolute length growth was found in P1 at 2,39cm. Meanwhile, the highest daily growth rate was found in P3 at 34,18g, while the lowest daily growth rate was found in P1 at 21,88g. From the results of providing different container colors in the maintenance container, the brighter the color used, the better the resulting growth is categorized
Environmental Friendliness of Freshwater Lobster (Cherax quadricarinatus) Fishing Gear in Laut Tawar Lake Based on the Code of Conduct for Responsible Fisheries (CCRF) Nabila, Rahima; Febri, Suri Purnama; Komariyah, Siti; Setyawan, Febby Hadi
Jurnal Ilmiah Samudra Akuatika Vol 9 No 2 (2025): Jurnal Ilmiah Samudra Akuatika
Publisher : Fakultas Pertanian Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jisa.v9i2.12869

Abstract

Laut Tawar Lake is a stagnant freshwater body located in Central Aceh Regency with an area of approximately 5,740.10 ha and has considerable fisheries potential, including freshwater lobster (Cherax quadricarinatus). The freshwater lobster is a benthic organism that inhabits rock crevices and constructs burrows in muddy substrates for shelter. The Code of Conduct for Responsible Fisheries (CCRF) provides international principles and standards to promote responsible fishing practices in order to achieve sustainable fisheries. This study aimed to assess the environmental friendliness of freshwater lobster fishing gears based on CCRF criteria. The research was conducted in December 2024 using three types of fishing gears: seruwe traps, segapa traps, and gallon traps. The results showed that the seruwe trap obtained a score of 34, the segapa trap scored 33, and the gallon trap scored 30. Based on the environmental friendliness classification of fishing gears with a score range of 28–36, all three types of fishing gears were categorized as environmentally friendly.