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Komunitas Fitoplankton dan Konsentrasi Nutrien di Waduk Jatigede Randi FItriadi; Niken Tunjung Murti Pratiwi; Rahmat Kurnia
Jurnal Ilmu Pertanian Indonesia Vol. 26 No. 1 (2021): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.26.1.143

Abstract

Jatigede reservoir is a new reservoir in West Java Province. There is not much information about phytoplankton and nutrients in this reservoir. The aim of the research was to study the relationship between phytoplankton community and nutrient in the reservoir. The research was conducted during the dry season, from September to October 2018. Analyzed parameters were phytoplankton abundance, diversity and dominance index, orthophosphate, nitrite, nitrate, and ammonium. Reservoir zonation was divided by cluster analysis. The relationship between phytoplankton and nutrients was analyzed by principal component analysis and Pearson’s correlation test. Phytoplankton in Jatigede Reservoir consisted of Bacillariophyceae, Chlorophyceae, Cyanophycea, Dinophyceae, and Euglenophyceae within 20333‒25308 cell/L. Nitrate concentration ranged within 0.6684‒3.6115 mg/L. Nitrite concentration ranged between 0.0544‒0.2301 mg/L and ammonium ranged within 0.00538‒0.2460 mg/L. The strongest correlation between phytoplankton and nutrients were shown by Cyanophyceae and Dinophyceae, especially with the concentration of orthophosphate, nitrate, nitrite, and ammonium (r > 0,78). Keywords: Cyanophyceae, orthophosphate, nitrate, nitrite
Photosynthesis of Periphyton and Diffusion Process as Source of Oxygen in Rich-Riffle Upstream Waters NIKEN TUNJUNG MURTI PRATIWI; SIGID HARIYADI; RIFKI TAJUDIN
Microbiology Indonesia Vol. 5 No. 4 (2011): December 2011
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (234.612 KB) | DOI: 10.5454/mi.5.4.5

Abstract

Most of dissolved oxygen content in stream or river water is obtained from the process of photosynthesis and diffusion.  Photosynthesis process in running water is performed by autotrophic organisms, especially community of attached micro-algae or periphytic micro-algae that live attached to stone or other substrates, while intensive diffusion process occurred as water flows.  Rich riffle upstream waters are characterized by stony bottom and high current.  The role of the periphyton photosynthesis result and diffusion process along the water current was examined by this research. A field experimental observation was carried out at the upstream of Cisadane River (600m asl) with two different natural light conditions, the light or exposed (24630-104240 Lux) and shadowy (11120-65300 Lux) conditions.  The actual dissolved oxygen contents in the area with the two conditions are relatively similar; 7.3 (light) and 7.0 mg L-1 (shadowy).  Oxygen supports were significantly different at the light and shadowy conditions, whether from diffusion process 71.71% and 79.37%, respectively, or from periphyton photosynthesis, 21.73% and 15.30%, respectively. The compositions of periphytons living in the two conditions were similar; mostly composed by group of Diatom, with the same dominant species of Thalassiothrix sp.  The difference in periphyton growth was shown by its density.  In the light condition, the Diatom tends to grow at higher density in comparison to the shadowy condition. The role of periphyton to support oxygen in upstream waters is light dependent.  The higher the light intensity (Photosynthetic Active Radiation ranged), the higher the support of oxygen will be.
PERTUMBUHAN DAN PRODUKTIVITAS Oedogonium sp. PADA INTENSITAS CAHAYA YANG BERBEDA Niken Tunjung Murti Pratiwi; Qadar Hasani; Ahmad Muhtadi; Neri Kautsari
BERITA BIOLOGI Vol 19, No 3A (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i3A.3890

Abstract

Oedogonium sp. is important, not only from an academic standpoint but also has great ecological significance, especially in limnology. This study examines the growth and productivity of Oedogonium sp. under different light intensity in laboratory scale. The main research includes Oedogonium sp. culture, measurement of growth (doubling time (DT) and relative growth rate (RGR)), measurement of primary productivity, and the effect of light measurement on cells through observation of histological preparations. The results showed that Oedogonium sp. on indoor culture showed negative growth (RGR of -0.054), whereas in semi-outdoor culture showed positive growth (RGR 0.046 - 0.47 g / day and DT for 14.72 - 15.09 days. Primary productivity and respiration in 1000 lux lighting cultures showed greater value than cultures in 650 lux lighting. The length of Oedogonium sp. ranged from 18.68 - 34.47 µm in dark light, 51.33 - 95.00 µm in moderate light, and 48.83 - 70.75 µm in bright light. This study showed that in indoor culture, the availability of light, temperature, pH and DO significantly affect the growth of Oedogonium sp., whereas in semi-outdoor culture, temperature, pH and DO factors was not limiting factors. The difference of light intensity influenced the growth and productivity of Oedogonium sp.   
Assessment of water quality of the ex-sand mining sites in Pasir Sakti District East Lampung for tilapia (Oreochromis niloticus) culture Qadar Hasani; Niken Tunjung Murti Pratiwi; Yusli Wardiatno; Hefni Effendi; Herman Yulianto; Maulid Wahid Yusuf; Rachmad Caesario; F Farlina
Journal of Degraded and Mining Lands Management Vol 8, No 4 (2021)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2021.084.3007

Abstract

Sand mining activities in Pasir Sakti District, East Lampung Regency, have changed the landscape and the allotment of land around it. The former sand mining area now becomes large puddles that are not utilized. This study aimed to analyze the suitability of water quality in ex-sand mining areas for tilapia (Oreochromis niloticus) culture. Observations were carried out at three stations in January-October 2019. Water quality measurements were performed to check water depth, clarity, temperature, current, dissolved oxygen, pH, salinity, nitrate, phosphate, iron, sulfate, and phytoplankton density. Analysis of suitability for aquaculture was carried out using weighting and scoring methods. Based on the results of the suitability analysis, the scoring result of the sand mining land for O.niloticus culture was in the range of 64% -68%. This score is classified as marginally suitable. The parameters with low scores are clarity, dissolved oxygen, temperature, pH, ammonia, phosphate, and iron (Fe) concentration parameters. Meanwhile, salinity, nitrate, sulfate, and phytoplankton density indicate conditions that are suitable for aquaculture. Therefore, severe treatment is needed to improve water quality to make it ideal for O.niloticus culture.
Kemampuan Kijing Lokal (Pilsbryoconcha exilis) Mereduksi Limbah Organik Budidaya Ikan Sidat (Anguilla sp.) Dudi Muhammad Wildan; Ridwan Affandi; Niken Tunjung Murti Pratiwi
Musamus Fisheries and Marine Journal Volume 4 Number 1, October 2021
Publisher : Faculty of Agriculture Musamus University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35724/mfmj.v0i0.3532

Abstract

The release of organic waste into the waters due to the Eel (Anguilla sp.) rearing activity will cause eutrophication. Efforts to reduce organic waste can be done by using local mussel (Pilsbryoconcha exilis) because it has biofiltration capabilities. The purpose of this study was to determine the ability of local mussels in reducing organic waste. The research design used in this study was a randomized block design (RBD), with treatment in the form of differences in waste concentration (50% and 100%), while the group was in the form of differences in the size of the gravestone (small, medium, and large). The results showed that mussel was able to reduce organic matter, the effective time of local mussel (P. exilis) to reduce organic waste from the cultivation of eel (Anguilla sp.) Was in the first 6 days. The most effective treatment is the use of 100% waste concentration and small mussel. This treatment was able to reduce COD values ​​by 66.1 mg/L (28%), turbidity by 187.2 NTU (16%), TSS by 134 mg/L (36%), and ammonia by 0.004 mg/L (24%), and increased biomass by 7.21 grams (3%).
Pemberdayaan Masyarakat melalui Program Desa Tangguh Bencana (DESTANA) Sebagai Upaya Mitigasi Banjir Rob di Kabupaten Cirebon Ananda Diah Oktaviani; Febby Amanda Putri; Niken Tunjung Murti Pratiwi; Iriani Setyaningsih
Jurnal Pusat Inovasi Masyarakat (PIM) Vol. 2 No. 3 (2020): Juni 2020
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (520.649 KB)

Abstract

The coastal area is the border area between land and sea. Coastal areas have an important role in maintaining that seawater does not enter the mainland. Poor coastal conditions will disturb the stability of the environment around the coast. Natural disasters such as tidal floods are the focus of attention for coastal communities, especially in Cirebon District. The purpose of this community service program is to reduce the risk of tidal flooding through disaster mitigation efforts. The dedication was carried out in July 2019 with the method of socialization and brainstorming. Socialization and brainstorming were attended by villagers. The results show that the community is very enthusiastic about this program, this is evidenced by the formation of working groups (LWGs) who are fully responsible for all pre-disaster activities, during disasters and after disasters. The program that has been carried out by LWG is participating in socialization related to DESTANA and making disaster mitigation maps and following coastal cleanup activities. Keywords: tidal flooding, disaster mitigation, empowerment
Estimation of phytoplankton carbon content in Jatigede Reservoir, Sumedang, West Java Grin Tommy Panggabean; Niken Tunjung Murti Pratiwi; Sigid Hariyadi; Inna Puspa Ayu; Aliati Iswantari; Dwi Yuni Wulandari; Reza Zulmi
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 12 No 3 (2022): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.12.3.414-422

Abstract

Waduk Jatigede merupakan perairan daratan tergenang yang terbentuk dari pembendungan sungai Cimanuk. Waduk Jatigede, sebagaimana waduk umunnya, secara horizontal terbagi atas tiga wilayah, yaitu riverin, transisi, dan lakustrin. Perbedaan karakteristik setiap zona juga berdampak pada komposisi dan komunitas fitoplankton, status trofik, dan kandungan karbon. Penelitian ini bertujuan untuk mengalkulasi seberapa besar kandungan karbon pada fitoplankton di perairan Waduk Jatigede pada setiap zona dengan komposisi dan komunitas fitoplankton pada status trofik tertentu. Stasiun penelitian dipilih menggunakan purposive sampling dengan pemilihan stasiun berdasarkan zona dalam waduk, yaitu riverin, transisi, dan lakustrin. Analisis status trofik dan kandungan karbon digunakan untuk mengetahui kondisi dan keberadaan karbon di Waduk Jatiged. Status trofik Waduk Jatigede berdasarkan Indeks Nygaard dan TSI (Tropic State Index) dikategorikan ke dalam tingkat kesuburan eutrofik. Jenis-jenis dari Kelas Cyanophyceae memiliki kelimpahan tertinggi, tetapi kandungan karbon tertinggi berada di kelas Dinophyceae. Zonasi riverin, transisi, dan lakustrin memiliki status kesuburan yang sama, tetapi memiliki komposisi dan komunitas fitoplankton yang berbeda. Berdasarkan hasil penelitian, diperoleh kandungan karbon fitoplankton relatif tinggi di zona riverin dan lakustrin, dan rendah di zona transisi.
Profil fitokimia selada laut (Ulva lactuca) dan mikro alga filamen (Spirogyra sp) sebagai bahan alam bahari potensial dari perairan Indonesia Ari Sri Windyaswari; Elfahmi Elfahmi; Fahrauk Faramayuda; Soraya Riyanti; Oktiyas Muzaky Luthfi; Inna Puspa Ayu; Niken Tunjung Murti Pratiwi; Khairunisa Harizqi Nurul Husna; Ridzka Magfirah
Kartika : Jurnal Ilmiah Farmasi Vol 7 No 2 (2019)
Publisher : Fakultas Farmasi Universitas Jenderal Achmad Yani, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/kjif.v7i2.288

Abstract

AbstrakPerairan Indonesia merupakan habitat bagi berbagai spesies makro dan mikro alga. Selada laut (Ulva lactuca) adalah salah satu makroalga hijau yang secara empiris digunakan sebagai makanan oleh masyarakat Indonesia yang hidup dipesisir pantai. Pada perairan tawar, ganggang hijau (Spirogyra porticalis) merupakan mikroalga filamen yang berperan penting sebagai bioindikator dalam sistem akuatik. Penelitian ini bertujuan untuk mengetahui profil fitokimia dari selada laut dan ganggang hijau yang tumbuh di perairan Indonesia. Hasil pengujian kualitatif pada selada laut (Ulva lactuca)  menunjukkan kandungan metabolit primer  dan sekunder berturut-turut adalah karbohidrat, alkaloid, flavonoid, mono dan seskuiterpenoid. Sementara itu ganggang hijau (Spirogyra porticalis) mengandung karbohidrat, protein, alkaloid, flavonoid, fenolik, tannin, kuinon, mono dan seskuiterpenoid. Pola kromatogram selada laut (Ulva lactuca) dan  ganggang hijau (Spirogyra porticalis) mendeteksi aktivitas antioksidan yang dimiliki oleh senyawa- metabolit sekunder  seperti fenol, tannin, flavonoid, mono dan seskuiterpenoid yang memiliki variasi kepolaran dari semi hingga polar. Hasil uji pendahuluan aktivitas antioksidan menggunakan metode dinamolisis menunjukkan selada laut (Ulva lactuca) dan  ganggang hijau (Spirogyra porticalis) memiliki aktivitas antioksidan dan berpotensi dikembangkan sebagai obat, suplemen, eksipien farmasi dan makanan nutrisi. Kata kunci: selada laut (Ulva lactuca), ganggang hijau (Spyrogyra porticalis), antioksidan, bahari, Indonesia. AbstractIndonesian waters are habitat for various macro and micro algae species. Sea lettuce Ulva lactuca is one of the green macroalgae that is empirically used as food by Indonesian people. In freshwater, green algae Spirogyra porticalis is filament microalgae that play an important role as bioindicators in the aquatic system. The aim of this research was to profiling the chemical constituent from native Indonesian sources, Ulva lactuca  and Spirogyra porticalis. The results of  Ulva lactuca  qualitative analysis showed the content of primary and secondary metabolites are carbohydrates, alkaloids, flavonoids, mono, and sesquiterpenoids, respectively. On the other hand, green algae Spirogyra porticalis carbohydrates, proteins, alkaloids, flavonoids, phenolics, tannins, quinones, mono, and sesquiterpenoids, respectively. The chromatogram pattern of sea lettuce Ulva lactuca and  Spirogyra porticalis showed the antioxidant activity caused by secondary metabolites such as phenol, tannin, flavonoids, mono and sesquiterpenoids which were various polarity. Preliminary test results of antioxidant activity with the dinamolysis method showed sea lettuce Ulva lactuca  and and green algae Spirogyra porticalis have antioxidant activity. It potentially developed as drugs, supplements, pharmaceutical excipients and nutritional foods. Keywords: sea lettuce Ulva lactuca, green microalgae Spyrogyra porticalis, antioxidant, marine, Indonesia,
Marine Suitability Assessment for Mariculture: Combining GIS and AHP Technique in Dampier Strait Conservation Area, West Papua Province, Indonesia Ichsan Suryo Wibowo; Ali Mashar; Niken Tunjung Murti Pratiwi; Fery Kurniawan
Jurnal Ilmiah Perikanan dan Kelautan Vol. 15 No. 2 (2023): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v15i2.40172

Abstract

Highlight Research Mariculture is one of the activities that can pressure the aquatic environment. Mariculture activities are carried out by considering the sustainability aspects of environmentally friendly implementation. The suitability of the location for mariculture activities refers to the geographical and hydro–oceanographic conditions seen from the waters' physical, chemical, and biological parameters. The suitability index produced using multiple approaches (GIS-based AHP) can be used to determine the potential locations for mariculture development.   Abstract Potential mariculture activities in the Dampier Strait Conservation Area, which are indicated by the availability of water space and local commodities, can have a multiplier effect on socio-ecological aspects. Therefore, reasonable development steps are needed to carry out environmentally friendly aquaculture. This study aims to determine the potential use of water space for the development of mariculture activities based on the level of suitability using multiple approaches. Suitability analysis was carried out with Geographic Information System (GIS) based on the Analytical Hierarchy Process (AHP) by considering the area's characteristics using several aspects seen from the geographical conditions and water quality (physical, chemical, and biological). Based on the suitability analysis results, the potential water space that can be used for mariculture development activities, namely seaweed and pearl oyster cultivation was 1,130.45 ha (0.49% of the overall space allocation 232,588.59 ha). A justification was then carried out to determine a suitable location in terms of its accessibility and environmental friendliness. The analysis has shown promising results in determining potential locations for developing mariculture activities for seaweed and pearl oyster commodities based on sustainable and environmentally friendly cultivation.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar

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.