Garuda - Garba Rujukan Digital

Water Quality and Nitrogen Load in Jatigede Reservoir: Kualitas Air dan Beban Nitrogen di Waduk Jatigede Melani, Asri; Iswantari, Aliati; Wulandari, Dwi Yuni; Pratiwi, Niken Tunjung Murti
Habitus Aquatica Vol 3 No 1 (2022): Habitus Aquatica : Journal of Aquatic Resources and Fisheries Management
Publisher : Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/HAJ.3.1.21

Waduk Jatigede yang berdekatan dengan daerah pemukiman dan kegiatan pertanian berpotensi menerima buangan limbah, yang diduga juga mengandung bahan pencemar nitrogen. Peningkatan kandungan nitrogen secara kontinyu dapat memberikan dampak buruk, seperti penurunan kualitas air dan terjadinya eutrofikasi. Analisis daya tampung beban nitrogen di Waduk Jatigede, Jawa Barat ini dilakukan berdasarkan data primer yang dikumpulkan. Pengambilan contoh air dan pengumpulan data perairan Waduk Jatigede dilakukan terhadap enam stasiun pengamatan dan dua sungai utama inlet Waduk Jatigede. Selanjutnya dilakukan penentuan beban nitrogen dari sungai (inlet) dan dalam waduk, sedimentasi nitrogen, serta daya tampung beban nitrogen. Beban nitrogen di Waduk Jatigede sebesar 24.374 ton telah melebihi batas maksimum menurut baku mutu perairan, sebesar 1.739 ton. Sementara, daya tampung beban nitrogen maksimal sesuai dengan baku mutu perairan di Waduk Jatigede adalah sebesar 595 ton. tahun-1. Dapat disimpulkan bahwa Waduk Jatigede sudah tidak mampu lagi menampung beban nitrogen yang masuk.

Growth of Chlorella sp. and Dunaliella sp. at Different Light Intensities: Pertumbuhan Chlorella sp. dan Dunaliella sp. pada Intensitas Cahaya yang Berbeda Masitoh, Ega Hana Masitoh; Widigdo, Bambang; Pratiwi, Niken Tunjung Murti
Habitus Aquatica Vol 3 No 1 (2022): Habitus Aquatica : Journal of Aquatic Resources and Fisheries Management
Publisher : Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/HAJ.3.1.35

Pertumbuhan fitoplankton, seperti Chlorella sp. dan Dunaliella sp. dipengaruhi oleh intensitas cahaya. Penelitian bertujuan untuk menganalisis keterkaitan antara kepadatan Chlorella sp. dan Dunaliella sp. dengan besar intensitas cahaya yang berbeda. Kedua jenis fitoplankton tersebut ditumbuhkan pada intensitas cahaya 1000 lux, 3000 lux, dan 7000 lux. Sumber pencahayaan didapat dari lampu pendah putih (cool daylight TLD). Kepadatan diamati setiap hari selama 10 hari menggunakan haemocytometer. Analisis data dilakukan untuk menganalisis signifikansi antara pertumbuhan sel pada kondisi intensitas cahaya yang berbeda. Hasil penelitian menunjukkan bahwa kepadatan Chlorella sp. dan Dunaliella sp. tertinggi didapatkan pada intensitas cahaya 1000 lux, (4,8 × 106 sel/mL dan 1,33 × 106 sel/mL) sedangkan kepadatan terendah didapatkan pada intensitas cahaya 7000 lux. Kepadatan Chlorella sp. Lebih dipengaruhi oleh ortofosfat, sedangkan Dunaliella sp. lebih dipengaruhi oleh keberadan nitrat. Secara umum tampak bahwa perbedaan intensitas cahaya berpengaruh secara signifikan terhadap kepadatan Chlorella sp. dan Dunaliella sp.

Characteristic and Water Quality Status in Karst Sinkhole Cileungsi, Bogor, West Java: Karakteristik dan Status Kualitas Air di Cekungan Karst Cileungsi, Kabupaten Bogor, Jawa Barat Dirgantara, Pedryn; Hariyadi, Sigid; Pratiwi, Niken Tunjung Murti
Habitus Aquatica Vol 3 No 2 (2022): Habitus Aquatica : Journal of Aquatic Resources and Fisheries Management
Publisher : Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/HAJ.3.2.109

Kawasan karst merupakan suatu bentuk permukaan bumi dengan kondisi hidrologi yang khas akibat terdapatnya batuan yang mudah larut. Penelitian ini bertujuan mendeskripsikan karakteristik dan status kualitas air melalui pendekatan Indeks Kualitas Air (IKA-NSF) dan Indeks Pencemaran (IP). Penelitian dilakukan pada bulan Februari sampai Maret 2015. Pengambilan contoh air dilakukan tiga kali pada ketiga cekungan dengan interval dua minggu. Nilai indeks kualitas air (IKA-NSF) pada cekungan Klapanunggal 1, 2 dan 3 berkisar antara 50,50-60,75. Tingkat status kualitas air pada ketiga cekungan tergolong dalam kategori sedang. Berdasarkan nilai indeks pencemaran (IP) untuk baku mutu kelas II dan III, hanya cekungan klapanunggal 2 yang memenuhi baku mutu, sedangkan cekungan Klapanunggal 1 dan 3 tergolong tercemar ringan dengan parameter fosfat total dan fecal coliform yang melampaui baku mutu.

Correlation of P Concentration in Water and Sediment at Crown Golf, Pantai Indah Kapuk, North Jakarta: Hubungan Kandungan P di Air dan Sedimen pada Perairan Danau Crown Golf, Pantai Indah Kapuk, Jakarta Utara Wulandari, Dwi Yuni; Pratiwi, Niken Tunjung Murti; Sumaryani, Rica; Kurnia, Rahmat
Habitus Aquatica Vol 2 No 1 (2021): Habitus Aquatica : Journal of Aquatic Resources and Fisheries Management
Publisher : Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/HAJ.2.1.12

Crown Golf merupakan danau hias dangkal yang berlokasi di Perumahan Cluster Crown Golf, Pantai Indah Kapuk, Jakarta Utara. Telah terjadinya eutrofukasi pada perairan tersebut menyebabkan berkurangnya fungsi danau hias. Tujuan penelitian ini adalah untuk menganalisis hubungan kandungan P yang terdapat di air dan sedimen di Danau Crown Golf. Analisis contoh air dan sedimen dilakukan di Laboratorium Produktivitas dan Lingkungan Perairan, Departemen Manajemen Sumberdaya Perairan, FPIK IPB University. Aplikasi STELLA 9.0.2 digunakan untuk simulasi pengelolaan pada Danau Hias Crown Golf. Berdasarkan hasil, terdapat 5 dari 13 parameter kualitas air yang tidak sesuai dengan baku mutu kelas II pada PP No. 82 Tahun 2001. Kandungan P di air selama pengamatan cenderung naik, sedangkan pada sedimen hasilnya cenderung turun. Berdasarkan hasil simulasi, jika dilakukan skenario pengelolaan dengan penggunaan empat buah kincir air selama enam jam pengoperasian menyebabkan kondisi P di air danau cenderung stabil. Keberadaan P di air tidak berkaitan erat dengan keberadaan P di sedimen, keberadaan P di sedimen dipengaruhi oleh DO dan suhu kolom air bawah.

The potency of plankton as natural food for hard-lipped barb larvae (Osteochilus hasselti C.V.) Pratiwi, Niken Tunjung Murti; Winarlin, .; Frandy, Yuki Hana Eka; Iswantari, Aliati
Jurnal Akuakultur Indonesia Vol. 10 No. 1 (2011): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

Plankton is aquatic organism that can be utilized as natural food. Hard-lipped barb is one of herbivorous fish that most of its life using plankton as its food source. Growing phytoplankton in pond can be conducted by providing nutrient source, such as fertilizing. In this study, we examined the growth of hard-lipped barb larvae related to the existence of natural food in different fertilized ponds. Four types of fertilizer were applied i.e. 100% organic fertilizer (PO), mixing of 85% organic and 15% inorganic fertilizer (PCa), mixing of 60% organic and 40% inorganic fertilizer, and 100% inorganic fertilizer (PA). Hard-lipped barb larvae were put into ponds after fertilizing process. Plankton was observed in ponds and larval intestines (Index of Preponderance and Ivlev Index). The growth of hard-lipped barb larvae was also observed. The result showed that larvae tend to utilize phytoplankton from the class of Bacillariophyceae and zooplankton in the early of its life. Utilizing plankton with those compositions as natural food in the early period generates a good growth performance. The best performance of growth was shown by larvae in PA treatment which utilized most on zooplankton in the early period. Key words: fertilizer, natural food, hard-lipped barb, plankton ABSTRAK Plankton merupakan organisme akuatik yang dapat digunakan sebagai sumber pakan alami. Ikan nilem merupakan salah satu jenis ikan herbivora yang hampir sepanjang hidupnya memanfaatkan plankton sebagai sumber makanannya. Cara untuk menumbuhkan fitoplankton di kolam adalah dengan menyediakan sumber nutrien, di antaranya melalui pemupukan. Oleh karena itu, penelitian ini dilakukan untuk mempelajari tingkat pertumbuhan larva ikan nilem berkaitan dengan keberadaan pakan alami yang ditumbuhkan pada media dengan jenis pupuk berbeda. Dalam penelitian ini diterapkan empat jenis pupuk berbeda, yaitu 100% pupuk organik (PO), campuran 85% pupuk organik dan 15% pupuk anorganik (PCa), campuran 60% pupuk organik dan 40% pupuk anorganik, dan 100% pupuk anorganik (PA). Larva ikan nilem ditebar di kolam setelah proses pemupukan. Pengamatan dilakukan terhadap keberadaan plankton di kolam dan di usus (Indeks Preponderance dan Ivlev). Di samping itu juga dilakukan pengamatan pertumbuhan larva. Berdasarkan hasil penelitian diketahui bahwa fitoplankton dari kelas Bacillariophyceae dan zooplankton banyak dimanfaatkan oleh larva di awal hidupnya. Pemanfaatan plankton dengan komposisi tersebut sebagai pakan alami di awal masa pemeliharaan menghasilkan pertumbuhan yang baik. Larva dengan pertumbuhan yang paling baik ditunjukkan oleh perlakuan PA yang memanfaatkan zooplankton lebih besar di awal masa pemeliharaan. Kata kunci: ikan nilem, pakan alami, plankton, pupuk

The Community Perception of Waste Management on The Belawan Coast, North Sumatra: Persepsi Masyarakat Terhadap Pengelolaan Sampah di Pesisir Belawan, Sumatera Utara Hasibuan, Febya Rizki; Hariyadi, Sigid; Pratiwi, Niken Tunjung Murti
Habitus Aquatica Vol 6 No 1 (2025): Habitus Aquatica : Journal of Aquatic Resources and Fisheries Management
Publisher : Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/HAJ.6.1.17

The abundant natural potential in the Belawan coastal area has great opportunities for the development of various activities. In addition, the Belawan coastal area is also vulnerable to high pollution, especially because of its role in supporting the regional economy through sectors such as tourism, fisheries, transportation, and industry. Effective waste management is a special concern of the government along with maximum efforts in developing economic potential. Waste has become a global problem, especially in Indonesia with its increasing population growth. This research aims to analyze strategies for controlling pollution from waste in the Belawan coastal area. The method used is a Likert Scale to evaluate the community's perception of the issue of waste problems. On the economic aspect, the community assessed that waste management has not had a significant impact, but on the social aspect, waste management was rated positively with the highest score reaching 68,80 which was obtained on waste management activities that increased fraternal ties. The problem of low sanitation awareness is the main obstacle that requires solutions based on community participation in waste management.

Trophic State of Situ Patengan, Bandung Regency, West Java: Status Kesuburan Perairan Situ Patengan, Kabupaten Bandung, Jawa Barat Wahyuni, Ari; Iswantari, Aliati; Damar, Ario; Wulandari, Dwi Yuni; Krisanti, Majariana; Pratiwi, Niken Tunjung Murti; Ayu, Inna Puspa
Habitus Aquatica Vol 6 No 1 (2025): Habitus Aquatica : Journal of Aquatic Resources and Fisheries Management
Publisher : Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/HAJ.6.1.27

Situ Patengan is designated as a Natural Tourism Park, offering recreational opportunities. However, human activities in the surrounding area can introduce both organic and inorganic materials, leading to changes in the lake’s trophic conditions. The trophic state level, which indicates the presence of nutrients, is used to evaluate the potential for the utilization of water bodies. The aim of this study was to assess the trophic state of Situ Patengan in Bandung Regency, West Java. Water samples were collected from the lake at four locations over three sampling periods. The trophic index (TRIX) method was applied to evaluate the lake’s trophic state. Total phosphate concentrations ranged from 0.041–0.187 mg/L, dissolved inorganic nitrogen concentrations varied between 0.20 and 0.64 mg/L, and chlorophyll-a levels ranged from 10.08 to 33.83 μg/L. According to the TRIX classification, the trophic state of Situ Patengan is considered eutrophic, with values ranging from 4.25 and 6.54. This information is valuable for predicting potential increases in trophic levels and guiding the sustainable management of Situ Patengan ecosystem.

a PHYTOPLANKTON BIODIVERSITY AND POLLUTION BIOINDICATOR IN BOJONEGARA COASTAL WATERS, BANTEN BAY, INDONESIA: Keanekaragaman Fitoplankton dan Bioindikator Pencemaran di Perairan Pesisir Bojonegara, Teluk Banten, Indonesia sulistiono sulistiono; Eva Cristine Ronauli; Niken Tunjung Murti Pertiwi; Hefni Effendi
Biospecies Vol. 15 No. 1 (2022): Januari 2022
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/biospecies.v15i1.12491

Coastal waters of Bojonegara in Banten Bay has a lot of pressure from the surrounding environment, including industry and sand mining. The high intensity and limited space encourage reclamation in coastal areas which can trigger changes in water quality. Research was conducted from October to December 2019, aims to analyze the phytoplankton biodiversity and pollution bioindicator of the waters. The phytoplankton was obtained through filtering 50 liters of water at a depth of 30 cm or surface waters. Observations were also made on water quality conditions including transparency, depth, color, temperature, pH, salinity, and dissolved oxygen (in-situ) and turbidity, Total Suspended Solid (TSS), nitrate, nitrite, and total phosphate (ex-situ). Data analysis was performed on abundance, diversity index, eveness and dominance, similarity index, and saprobic index. Based on observations, it is known that the phytoplankton found were in the class Bacillariophyceae, Chlorophyceae, Cyanophyceae, Dinophyceae, and Chrysophyceae. The index values of diversity, eveness, and dominance of phytoplankton each ranged from 0.2223-1.0070; 0,1289-0,5664; and 0.1550-0.8181, respectively. According to these values, the Bojonegara waters were classifeied as mild to moderate ecological pressure. The similar conditions are also indicated by the saprobic index values. The result of Main Component Analysis (PCA) shows the first component with 53.726% variance represented by turbidity parameters, TSS, total phosphate, transparency, depth, temperature, pH, and DO. These parameters have the most influence on the presence of phytoplankton.

Phytoplankton Abundance and Distribution Chloropyll-a in Reservoir Lubis, Syahnan Aly; Pratiwi, Niken Tunjung Murti; Effendi, Hefni
Depik Vol 13, No 1 (2024): APRIL 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.1.33923

Organic matter entering through the inlet and activities in the Koto Panjang Reservoir body is feared to be the main source of nutrient contribution in the form of nitrogen (N) and phosphate (P) for reservoir waters. Nutrients N and P are utilised by phytoplankton in the photosynthesis process. If this condition continues, it is feared that it will affect water quality (blooming algae) which has an impact on aquatic biota. This study aims to determine the type and abundance of phytoplankton along with the distribution of chlorophyll a in reservoir waters. This study used descriptive, qualitative and quantitative methods and analysed the distribution of chlorophyll a using surfer software. Based on the results of the study, it is known that water quality is relatively good with temperatures ranging from 26-310C, brightness ranging from 0.69-1.96 m, dissolved oxygen (DO) is 5.60-6.80 mg/L and turbidity is 1-6 NTU. The results showed that phytoplankton composition was composed of 5 classes consisting of Euglenophyceae (1 species), Cyanophyceae (3 species), Conjugatophyceae or Zygnematophyceae (4 species), Chlorophyceae (4 species) and Bacillariophyceae (10 species). The dominating class in the reservoir zonation is different. In the riverine zone the Bacillariophyceae class dominates by 60.06%, in the transition zone the Cyanophyceae class by 91.60% and in the lacustrine zone the dominating class is Conjugatophyceae or Zygnematophyceae by 78.69%. Phytoplankton abundance ranged from 166.5-2,193 sell/m3. The highest abundance was located in the lacustrine zone and the lowest abundance in the riverine zone. The distribution of chlorophyll a in Koto Panjang Reservoir is varied, the highest distribution is located in the transition zone to the lacustrine zone.

Phytoplankton Abundance and Distribution Chloropyll-a in Reservoir Lubis, Syahnan Aly; Pratiwi, Niken Tunjung Murti; Effendi, Hefni
Depik Vol 13, No 1 (2024): APRIL 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.1.33923

Organic matter entering through the inlet and activities in the Koto Panjang Reservoir body is feared to be the main source of nutrient contribution in the form of nitrogen (N) and phosphate (P) for reservoir waters. Nutrients N and P are utilised by phytoplankton in the photosynthesis process. If this condition continues, it is feared that it will affect water quality (blooming algae) which has an impact on aquatic biota. This study aims to determine the type and abundance of phytoplankton along with the distribution of chlorophyll a in reservoir waters. This study used descriptive, qualitative and quantitative methods and analysed the distribution of chlorophyll a using surfer software. Based on the results of the study, it is known that water quality is relatively good with temperatures ranging from 26-310C, brightness ranging from 0.69-1.96 m, dissolved oxygen (DO) is 5.60-6.80 mg/L and turbidity is 1-6 NTU. The results showed that phytoplankton composition was composed of 5 classes consisting of Euglenophyceae (1 species), Cyanophyceae (3 species), Conjugatophyceae or Zygnematophyceae (4 species), Chlorophyceae (4 species) and Bacillariophyceae (10 species). The dominating class in the reservoir zonation is different. In the riverine zone the Bacillariophyceae class dominates by 60.06%, in the transition zone the Cyanophyceae class by 91.60% and in the lacustrine zone the dominating class is Conjugatophyceae or Zygnematophyceae by 78.69%. Phytoplankton abundance ranged from 166.5-2,193 sell/m3. The highest abundance was located in the lacustrine zone and the lowest abundance in the riverine zone. The distribution of chlorophyll a in Koto Panjang Reservoir is varied, the highest distribution is located in the transition zone to the lacustrine zone.

Title

Found 31 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 31 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 31 Documents
Search