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All Journal Jurnal Ilmu Pertanian Indonesia Makara Journal of Science
Enan Mulyana Adiwilaga
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Agriculture, Biological Sciences & Forestry

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Distribusi Spasial Fitoplankton di Perairan Pesisir Tangerang Dwi Yuni Wulandari; Niken Tunjung Murti Pratiwi; Enan Mulyana Adiwilaga
Jurnal Ilmu Pertanian Indonesia Vol. 19 No. 3 (2014): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

This study was conducted in describing the spatial distribution of phytoplankton in the coast of Tanggerang based on species composition and abundance. This study held on April and August 2013 in 10 sampling station. Sample survey method used to collect the data. Morisita Index of Dispersion used to describe the distribution pattern of phytoplankton and Bray-Curtis Index used to describe the similarity of sampling station based on its abundances of phytoplankton. Based on result of the study, the phytoplankton in the coast of Tangerang consist of three classes, which is Bacillariophyceae (24 genera), Dinophyceae (3 genera), and Cyanophyceae (2 genera). The result shows that the highest composition and abundance is from the species of Bacillariophyceae. The distribution pattern of phytoplankton is group distribution. The distribution of species of phytoplankton and its abundance is different even the sampling station is near each other and environmental parameters that influence.
Kualitas Perairan Sungai Buaya di Pulau Bunyu Kalimantan Utara pada Kondisi Pasang Surut Bambang Kurniadi; Sigid Hariyadi; Enan Mulyana Adiwilaga
Jurnal Ilmu Pertanian Indonesia Vol. 20 No. 1 (2015): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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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. 
Status Kualitas Air dan Kesuburan Perairan Waduk PLTA Koto Panjang, Provinsi Riau Ika Fitria Hasibuan; Sigid Hariyadi; Enan Mulyana Adiwilaga
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.
The Relationship between the Harmful Algal Blooms (HABs) Phenomenon with Nutrients at Shrimp Farms and Fish Cage Culture Sites in Pesawaran District Lampung Bay Hasani, Qadar; Adiwilaga, Enan Mulyana; Pratiwi, Niken Tunjung Murti
Makara Journal of Science Vol. 16, No. 3
Publisher : UI Scholars Hub

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Abstract

The phenomenon of harmful algal blooms (HABs) in the Lampung Bay has been reported by many researchers. The occurrence of HABs may be due to the increase of nutrient (N and P) as results of waste water of aquaculture (shrimp farms, hatcheries and fish cage farms). This study aimed to determine the relationship between N and P concentrations in some aquaculture sites with harmful algal blooms. The analysis revealed the differences concentration of N and P at each different shrimp farms and fish cage farms sites (Hurun, Sidodadi, Ringgung, and Cikunyinyi Bay). The result showed that the increase of N and P concentration were followed by the increase of harmful phytoplankton populations. High density HABs were found in this study, such as: Ceratium furca with the highest density at 5.314 x 106 cells/l, Trichodesmium erithraeum 1.05 x 105 cells/l and Noctiluca scintilans 5.99 x 104 cells/l. The Multiple regression and canonical corelation analysis (CCA) also indicated a strong positive relationship between N and P with the HABs at the shrimp farms and fish cage farms sites in the Lampung Bay.
Co-Authors Bambang Kurniadi Dwi Yuni Wulandari Ika Fitria Hasibuan Niken Tunjung Murti Pratiwi Qadar Hasani Sigid Hariyadi