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Journal : Jurnal Ilmu Pertanian Indonesia

Kualitas Air dan Status Kesuburan Perairan Waduk Sempor, Kebumen Shaleh, Fuquh Rahmat; Soewardi, Kadarwan; Hariyadi, Sigid
Jurnal Ilmu Pertanian Indonesia Vol 19, No 3 (2014): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (792.565 KB)

Abstract

Sempor Reservoir is one of the reservoir in Central Java. This reservoir has primary function as irrigation and hydropower source. Beside, it also has some benefit for fisheries and tourism activities. Reservoir utilization which has not been optimum yet need some adjustments with water quality and aquatic trophic state in Sempor Reservoir. This study was aimed to determine water quality and aquatic trophic state of Sempor Reservoir. This study was conducted from January to March 2014 with monthly water sampling. Survey method to collect data with stratified random sampling was used for four represented station. Aquatic trophic state determination was based in Carlson Trophic State Index (TSI) measurement. This method used some represented parameters of physics, chemistry and biology such as water transparency, total phosphorus, and chlorophyll-a. The results showed that water quality of Sempor Reservoir was still good for fishery activities. Aquatic trophic state of Sempor Reservoir based on Carlson TSI was classified to low-medium in euthropic category ranging from 50.71-64.91. Inlet was the only area which had medium category of eutrophic due to highly nutrient content derived from anthropogenic activities nearby. Keywords: aquatic trophic state, carlson trophic state index, sempor reservoir
Kualitas Perairan Sungai Buaya di Pulau Bunyu Kalimantan Utara pada Kondisi Pasang Surut Kurniadi, Bambang; Hariyadi, Sigid; Adiwilaga, Enan Mulyana
Jurnal Ilmu Pertanian Indonesia Vol 20, No 1 (2015): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (889.023 KB)

Abstract

Buaya River is one of the river in Bunyu Island which is found near with domestic and agricultural activities. Moreover, Buaya River is also used for fisheries activity by people nearby (fish products collecting and processing) and also used by the fisherman as the back of the boat. These activities will influence and change water quality. This research aimed to analysed water quality condition at Buaya River. Water quality assessment was conducted at four observation station. Water quality was analysed using Storet index and was compared with threshold for marine organisms (Kepmen No. 51/MENLH/2004). The result showed that Buaya River had been polluted at medium level at tide and medium to heavy level at low tide. TSS, oil and grease were not suitable with marine organisms threshold at all stations in low high and low tide. 
Kualitas Air dan Status Kesuburan Perairan Waduk Sempor, Kebumen Shaleh, Fuquh Rahmat; Soewardi, Kadarwan; Hariyadi, Sigid
Jurnal Ilmu Pertanian Indonesia Vol 19, No 3 (2014): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (792.565 KB)

Abstract

Sempor Reservoir is one of the reservoir in Central Java. This reservoir has primary function as irrigation and hydropower source. Beside, it also has some benefit for fisheries and tourism activities. Reservoir utilization which has not been optimum yet need some adjustments with water quality and aquatic trophic state in Sempor Reservoir. This study was aimed to determine water quality and aquatic trophic state of Sempor Reservoir. This study was conducted from January to March 2014 with monthly water sampling. Survey method to collect data with stratified random sampling was used for four represented station. Aquatic trophic state determination was based in Carlson Trophic State Index (TSI) measurement. This method used some represented parameters of physics, chemistry and biology such as water transparency, total phosphorus, and chlorophyll-a. The results showed that water quality of Sempor Reservoir was still good for fishery activities. Aquatic trophic state of Sempor Reservoir based on Carlson TSI was classified to low-medium in euthropic category ranging from 50.71-64.91. Inlet was the only area which had medium category of eutrophic due to highly nutrient content derived from anthropogenic activities nearby.
Manajemen Kualitas Air Dengan Teknologi Bioflok: Studi Kasus Pemeliharan Ikan Lele (Clarias Sp.) Adharani, Nadya; Soewardi, Kadarwan; Syakti, Agung Dhamar; Hariyadi, Sigid
Jurnal Ilmu Pertanian Indonesia Vol 21, No 1 (2016): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (269.093 KB) | DOI: 10.18343/jipi.21.1.35

Abstract

Biofloc technology is one of the alternative to overcome the problem of water quality of cultivation environment which was adapted from conventional waste management techniques. The purpose of this study was to assess the young catfish culture by applying bioflocs of some consortium products, such as Bacillus megaterium (BM), Supernit (SP), Depok 165 (DP165), Kayajaga (KJ) compared to non biofloc application for improving the water quality. The results of this study and statistical test showed that the lowest concentration of TAN by probiotic KJ was about 2.56 mg L-1, while the control was about 5.47 mg L-1, and the consortium of bacteria gave effect to  TAN value (p<0.05). The Lowest concentration of amonia by probiotic KJ was about 0.0001853 mg L-1, while control was about 0.0003973 mg L-1, and the consortium of bacteria did not give effect to amonia value (p>0.05). The lowest concentration of nitrite by probiotic BM was about 0.065 mg L-1, while the control  was about 0.124 mg L-1, and the consortium of bacteria gave effect to the nitrite value (p<0.05). The lowest concentration of nitrate by probiotic BM was about 1.203 mg L-1, while the control was about 3.437 mg L-1, and the consortium of bacteria gave effect to the nitrate value (p<0.05). Consortium of bacteria gave effect to the COD value (p<0.05), but all bioflocs treatments had an average value of COD higher than the control. The conclusion that the bioflocs aplication was able to improve the water quality shown by decreasing parameter values of TAN concentrations, ammonia, nitrite, and nitrate.
Analisis Daya Dukung Lahan untuk Pengembangan Budi Daya Kerapu di Perairan Tambak Kecamatan Cilebar, Kabupaten Karawang Alifatri, La Ode; Hariyadi, Sigid; Susanto, Handoko Adi
Jurnal Ilmu Pertanian Indonesia Vol 22, No 1 (2017): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1041.242 KB) | DOI: 10.18343/jipi.22.1.52

Abstract

The aims of this research were to analyze the land suitability and carrying capacity for groupers culture. The utilized methods were land suitability analysis and carrying capacity analysis. The results of land suitability analysis showed that the area which is fit very suitable criteria is 38.16 ha (17.13%), fit enough suitable is 118.27 ha (53.11%), and appropriate-conditional suitable is 66.26 ha (29.75%). The results of carrying capacity analysis resulted in an area of 156.43 ha which is very suitable for groupers culture development in KJT systems. This area could accommodate as much as 313 ponds which are equivalent to 626 units or 6.257 KJT boxes.
Struktur Komunitas Fitoplankton di Danau Toba, Sumatera Utara Rahman, Arif; Pratiwi, Niken Tunjung Murti; Hariyadi, Sigid
Jurnal Ilmu Pertanian Indonesia Vol 21, No 2 (2016): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (728.096 KB) | DOI: 10.18343/jipi.21.2.120

Abstract

Lake Toba is the largest lake in Indonesia, located in the Province of North Sumatra. Lake Toba is used to aquaculture, agricultural, tourism, and residential areas. These activities will produce organic and anorganic matter that can affect water quality and can cause eutrophication. Some indicators of eutrophication are an increase in phytoplankton biomass and changes in phytoplankton community structure. The aim of this study was to describe the phytoplankton community structure in Lake Toba. This study was conducted on 20-24 October 2014 at 23 stations around the Samosir Island, Lake Toba. The results showed that the phytoplankton abundance ranged 216-68.319.716 cells/m3. The phytoplankton composition consists of 35 genera from four classes: Cyanophyceae, Chlorophyceae, Bacillariophyceae, and Dinophyceae. Chyanophyceae is a dominant phytoplankton groups based on the composition of abundance (>40%). Structure of phytoplankton communities in Lake Toba dominated by Anabaena.
Status Kualitas Air dan Kesuburan Perairan Waduk PLTA Koto Panjang, Provinsi Riau Hasibuan, Ika Fitria; Hariyadi, Sigid; Adiwilaga, Enan Mulyana
Jurnal Ilmu Pertanian Indonesia Vol 22, No 3 (2017): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (389.968 KB) | DOI: 10.18343/jipi.22.3.147

Abstract

PLTA Koto Panjang Reservoir is one of the reservoirs in Riau Province which has a primary function as a Hydropower source and also used for fisheries and tourism activities. Increased activity around the existing reservoir affecting water quality conditions that would interfere with function.This research was conducted in April-May 2015 with three observations on 5 stations with the aimed this research to analyzing, determining the status of water quality, and fertility status of waters in PLTA Koto Panjang Reservoir. Determination of reservoir water quality status based on parameters of physical, chemical, and biological methods STORET with water quality standard Class II and III for comparison. Fertility status was determined by Trophic Level Index (TLI) based on the brightness, chlorophyll-a, total nitrogen, and total phosphorus waters. The results showed that the status of Koto Panjang Reservoir water quality can be categorized as being contaminated with the quality standard Class III and heavily polluted the quality standard Class II. The parameters have exceeded the water quality standard Class II and III are ammonia, nitrite, and BOD5. The fertility status of the dam water is the eutrophic category with TLI values ranges from 4.6-5.2.
Efektivitas Penggunaan Bakteri Untuk Perbaikan Kualitas Air Media Budi Daya Udang Vaname (Litopenaeus vannamei) Super Intensif Herdianti, Lufisari; Soewardi, Kadarwan; Hariyadi, Sigid
Jurnal Ilmu Pertanian Indonesia Vol 20, No 3 (2015): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (915.591 KB) | DOI: 10.18343/jipi.20.3.265

Abstract

Aquaculture activities in coastal area potentially produced wastes which leads water pollution. In order to reduce pollution, the use of several bacteria is very promising. This study was aimed to determine the effectivity of commercial bacterial inocculants to reduce pollution in cultured water. Bacterial inocculant tested in this study was SN®, SB®, and the combination of both inocculants for water quality improvements in white shrimp (Litopenaeus vannamei) super intensive culture media. This study was conducting in two steps, namely (i) preliminary study and (ii) primary study. The preliminary study was aimed to determine the time required to add bacteria based on the total number of bacterial colonies. The result showed that total colonies number of media treated with addition of SN® and SB® were reached maximum within 2 days. The result of primary study showed that the combination of SN® and SB® showed best effect in maintaining water quality of the culture media. This combination are proven reduces ammonia by 96%, nitrite-N by 83%, and COD by 42%.
Hubungan Antara Degradasi Mangrove Segara Anakan dan Penurunan Hasil Tangkapan Kepiting Bakau (Scylla sp.) di Kabupaten Cilacap, Provinsi Jawa Tengah Ismail, Ismail; Sulistiono, Sulistiono; Hariyadi, Sigid; Madduppa, Hawis
Jurnal Ilmu Pertanian Indonesia Vol 24, No 3 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (397.874 KB) | DOI: 10.18343/jipi.24.3.179

Abstract

The area of mangrove Segara Anakan has a high economic value so that there is a high interest to various land uses in this area. This condition leads to the change in ecological function of the mangrove which has impacts on the decreased production of mangrove crabs. This study was desighed to analyze the areas of catching crabs related to mangrove ecosystem. This study was conducted for six months in the 3 mudcrab catching areas (Western Area, Central Area, and Eastern Area). The analysis used in this study was a one way ANOVA statistic for the crabs catching in these 3 catching areas, and a simple linear regression to analyxe the correlation betwen annual crab production and mangrove area. The results showsed that mud crabs catchings in the 3 areas is 5861.7; 6072.87; dan 7689.4 kg were significantly different (P<0.05) and the linear regression between the area of mangrove in Segara Anakan and crab’s production of the Cilacap Regency was Y= 14.951X-88357 with R2 = 0.54. These results described that the number of crabs catching was influenced by the condition of mangrove in the 3 catching areas while the regressionb analysis showed that the decreased mud crab’s production in Cilacap Regency was correlated to the decrease in the area of mangrove Segara Anakan.