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Pengaruh perbedaan konsentrasi olahan air lindi terhadap kelimpahan Chlorella sp Rosyadi Rosyadi; Agusnimar Agusnimar; Hisra Melati
Dinamika Lingkungan Indonesia Vol 9, No 1 (2022)
Publisher : Universitas Riau

Leachate, as liquid waste is rich in nutrients, can be used as organic material for the microalgae culture such as Chlorella sp. This study aims to determine the effect of different concentrations to of leachate on the abundance of Chlorella sp populations. The observation was conducted at the laboratory of Microalgae, Agriculture faculty, Islamic University of Riau. The method used in this study was an experimental method using a randomized design; one factor, namely the different concentrations of leachate with five levels, were 5%, 10%, 15%, 20%, and 25%/l of water and three replications. The testing organism in this study was phytoplankton Chlorella sp. The culture container used was a gallon with 20 L of capacity and a water volume of 16 L. The measured parameters were cell abundance, specific growth rate, and water quality. The obtained results showed that the highest abundance of Chlorella sp at a concentration of 25% at 7,322,222 cells/ml, and the peak on day 16, the lowest concentration of 5%, was 2,580,556 cells/ml. On the sixth day, the highest specific growth rate was at a concentration 5% at 0.195/day, and the lowest was 20% at 0.077/day.

Pengaruh Pemanfaatan Hasil Limbah Cair Tahu Fermentasi Terhadap Kelulushidupan dan Pertumbuhan Ikan Puyu (Anabas testudineus) Fakhrunnas MA Jabbar; T Iskandar Johan; Muhammad Hasby; Hisra Melati; Safitriani Safitriani
Dinamika Lingkungan Indonesia Vol 10, No 1 (2023)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/dli.10.1.p.52-55

Climbing perch (Anabas testudineus) is one type of swamp fish that has the potential to be cultivated. The obstacle faced in the development of quail aquaculture is its slow growth because it takes 6-7 months to reach a length of 8-10 cm and a weight of 15-16 grams. The food for quail is usually eaten by aquatic plants such as water lettuce (Pistia stratiotes), weeds, other small animals, and insects. Feed is one of the main factors that can support fish breeding. As a place for fish to live, water quality is strongly influenced by physical and chemical factors of water such as temperature, dissolved oxygen, pH, ammonia, nitrite, and nitrate. Because the use of freshwater media added with salt has several advantages, it can inhibit the growth of fungi and increase antibodies against disease attacks. The objectives and plans of this research are. To determine the effect of different doses of maintenance media on the spawning of quail (A. testudieneus Bloch). Morever, to find out and provide the best optimal dose for rearing quail (A. testudieneus Bloch). It find out the best dose for spawning quail (A. testudieneus Bloch). It be used as a reference for further research ?. Hopefully, this study can provide benefits and insights for the cultivation technology of quail (A. testudieneus Bloch) either continuously or in a way that is good for its living media.

Pengaruh Lama Waktu Perendaman Limbah Ekstrak Daun Kersen (Muntingia calabura) Dengan Dosis Sama Terhadap Lama Inkubasi, Daya Tetas dan Kelulushidupan Larva Ikan Lele Dumbo (Clarias gariepinus) T. Iskandar Johan; Muhammad Hasby; Fakhrunnas MA Jabbar; Hisra Melati; Harni Sri Mulyani
Dinamika Lingkungan Indonesia Vol 10, No 2 (2023)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/dli.10.2.p.97-101

This research is expected to be useful for fish farmers as additional information in catfish (Clarias gariepinus) aquaculture. The method used is an experimental method using a completely randomized design (CRD) with 5 treatments and 3 replications, namely:P1 = 1 minute immersed in Muntingia calabura leaf extract waste, P2 = 3 minutes immersed, P3 = 5 minutes immersed, P4 = 7 minutes immersed and P5 = 9 minutes immersed. 2.250 eggs of catfish (C. gariepinus) were obtained from artificial spawning of catfish broodstock at the Fish Seed Center, Faculty of Agriculture, Islamic University of Riau. The container used is a jar with a size of 10 liters. Based on the results of research on the effect of immersing waste extracts of M. calabura leaf extract with different immersing times on incubation time, hatchability and survival of catfish larvae, the best treatment was P5, which was 9 minutes of immersion. The parameter results obtained were 92% of egg adhesive, incubation time is 17:24 (17 hours 24 minutes), and hatchability rate is 87.78%. While the results of water quality measurements in this study were classified as optimal for catfish cultivation, with an ammonia range are 0.27-0.75 ppm, DO ranged from 3.14-4.95 mg/l, temperature are 28-31°C and the pH is 6.5.

PEMBERIAN POC DENGAN RENTANG WAKTU BERBEDA TERHADAP KELIMPAHAN Chlorella sp Rosyadi; Agusnimar; Hisra Melati
DINAMIKA PERTANIAN Vol. 35 No. 3 (2019): Jurnal Dinamika Pertanian Edisi Desember 2019
Publisher : UIR Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/dp.2019.vol35(3).7706

This study aims to determine the effect of giving POC with different time ranges on abundance. The study was carried out for 18 days in the Microalgae Laboratory of the Fish Seed Institute of the Faculty of Agriculture, Riau Islamic University, Pekanbaru. The method used is a completely randomized design (CRD) with 5 treatments 3 replications, namely: P1 giving POC on day 5, P2 giving POC on day 6, P3 giving POC on day 7, P4 giving POC on day -8 and P5 administration of POC on the 9th day. From the results of the study, the highest density of Chlorella sp was found on P3 treatment with a total density of 9,833,333 cells/ml on the 5th day. The lowest average peak was in the treatment of P1 with 2,566,667 cells/ml on the 12th day. Water quality such as temperature ranged from 25 to 300 C and pH between 6.5-7.

PENGARUH RENTANG WAKTU PENINGKATAN SALINITAS TERHADAP KELULUSHIDUPAN DAN PERTUMBUHAN LARVA IKAN BAUNG (H. nemurus) Ahlun Nazar; Fakhrunnas MA Jabbar; Hisra Melati
DINAMIKA PERTANIAN Vol. 35 No. 3 (2019): Jurnal Dinamika Pertanian Edisi Desember 2019
Publisher : UIR Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/dp.2019.vol35(3).7707

This research is expected to be useful especially for fish farmers as additional information in raising baung fish. The method used was an experimental method using a Completely Randomized Design (CRD) with 4 treatments and 3 replications namely: P1 = 5 ‰ per 3 days 7 ‰ per 3 days, 9 ‰ per 3 days, P2 = 5 ‰ per 5 days 7 ‰ per 5 days 9 ‰ per 5 days, P3 = 5 ‰ per 7 days 7 ‰ per 7 days 9 ‰ per 7 days, P4 = 5 ‰ per 9 days 7 ‰ per 9 days 9 ‰ per 9 days. The baung fish used for the study was obtained from spawning at the Fish Seed Center (BBI) of the Faculty of Agriculture, Riau Islamic University with a weight of 0.14 gr of baung fish/tail and 1.6 cm in length/tail. The container used is a jar a size of 10 liters. From the results of the study obtained the best absolute weight growth and absolute length of the treatment (P4) with a weight of 4.35 gr and a length of 1.84 cm, followed by treatment (P2) with a weight of 3.96 gr and P3 a length of 1.82 cm, (P3 ) weighing 3, 75 gr and P2, 1.73 cm long, and the lowest in treatment (P1) with a weight of 2.64 grams and a length of 1.28 cm. The daily weight growth rate in the treatment group (P2) was 17.31%, (P2) 15.17%, (P4) 13.18%, and the lowest (P3) was 12.60%. The best survival rate for treatment (P4) was 72.00%, followed by treatment (P3) at 54.67%, and the lowest for treatment (P1) was 6, 67%. The results of water quality measurements in this study were temperature 28-300C, pH 6-7, dissolved oxygen 0.4 ppm, ammonia 0.05 ppm. Based on the observations of water quality during the study was within the range of tolerance for the growth and life of baung fish.

The Effect of the Utilization of Fermented Tofu Waste Products on Hatching Rate and Survival Rate of Climbing Perch (Anabas testudineus) Hisra Melati; Fakhrunnas MA Jabbar; Safitriani Safitriani
Jurnal Natur Indonesia Vol. 22 No. 1 (2024): April
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.22.1.35-40

Climbing perch (Anabas testudineus) is a type of swamp fish that has the potential to be cultivated. The obstacle faced in developing climbing perch cultivation is that the eggs produced are very few and vulnerable to inorganic substances or waste because it takes quite a long time to reach seed size. Climbing perch usually food aquatic plants such as kiambang, weeds, and other small animals and insects. It analyzes the effect of various concentrations of tofu liquid waste on the transparent hatchability and survival of climbing perch larvae and the use of research results on the influence of various concentrations of tofu liquid waste on the transparent hatchability and survival of climbing perch fish larvae. A 100% concentration of tofu liquid waste produced the highest survival in the P4 treatment (64.00%), and the lowest concentration without giving tofu liquid waste concentration at P0 was (40.00%). A 100% concentration of tofu liquid waste produced the highest hatchability in the P4 treatment ( 60.00 %), and the lowest concentration without providing tofu liquid waste at P0 was (42.00 %). The research fulfilled the maintenance requirements by utilizing fermented tofu liquid waste as a medium for rearing climbing perch eggs and larvae. It is not possible to use 100% tofu liquid waste for climbing perch, and it is not possible to use 100% tofu liquid waste for climbing perch larvae in the long term

The Effect of the Utilization of Fermented Tofu Waste Products on Hatching Rate and Survival Rate of Climbing Perch (Anabas testudineus) Hisra Melati; Fakhrunnas MA Jabbar; Fakhrunnas MA Jabbar; Safitriani Safitriani
Jurnal Natur Indonesia Vol. 22 No. 1 (2024): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.22.1.35-40

Climbing perch (Anabas testudineus) is a type of swamp fish that has the potential to be cultivated. The obstacle faced in developing climbing perch cultivation is that the eggs produced are very few and vulnerable to inorganic substances or waste because it takes quite a long time to reach seed size. Climbing perch usually food aquatic plants such as kiambang, weeds, and other small animals and insects. It analyzes the effect of various concentrations of tofu liquid waste on the transparent hatchability and survival of climbing perch larvae and the use of research results on the influence of various concentrations of tofu liquid waste on the transparent hatchability and survival of climbing perch fish larvae. A 100% concentration of tofu liquid waste produced the highest survival in the P4 treatment (64.00%), and the lowest concentration without giving tofu liquid waste concentration at P0 was (40.00%). A 100% concentration of tofu liquid waste produced the highest hatchability in the P4 treatment ( 60.00 %), and the lowest concentration without providing tofu liquid waste at P0 was (42.00 %). The research fulfilled the maintenance requirements by utilizing fermented tofu liquid waste as a medium for rearing climbing perch eggs and larvae. It is not possible to use 100% tofu liquid waste for climbing perch, and it is not possible to use 100% tofu liquid waste for climbing perch larvae in the long term.

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