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INDONESIA
Jurnal Hidrosfir Indonesia
Published by Badan Pengkajian dan Penerapan Teknologi
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Articles 128 Documents
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ANALISIS KESEDIAAN MASYARAKAT MENERIMA PEMBAYARAN JASA LINGKUNGAN DALAM PENGELOLAAN AIR MINUM DI DAS CISADANE HULU Sutopo, M.Fauzi
Jurnal Hidrosfir Indonesia Vol 5, No 3 (2010)
Publisher : Jurnal Hidrosfir Indonesia

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Abstract

Ecocentrisme paradigm in development are intended to ensure the sustainability of water resources in the future for future generations. The research methodology was conducted with the model approach the public's willingness to accept (receive) payment for environmental services (YWTA). The results in Willingness to Accept Model in Drinking Water Management in the Upstream Watershed Cisadane illustrates that the existence of community support during the response level of society's willingness to accept or receive payment for environmental services (YWTA) because it will affect the increased revenue (sig. 0037). Variable in income (YWTA) significant at 95% confidence level. Policy implications of this research that the community (upstream) is willingness to accept (WTA) for environmental services with averaging Rp 1.589,29 per m3 as payment or reward for environmental services to society (upstream), so the Government (Local)PES has a potential revenue to fund conservation of Rp 110,46 billion per years, but in current conditions the government only accepts Rp20.57 billion per year, so that only reached 18,62%.
SPATIAL DISTRIBUTION OF PHYTOPLANKTON AT THE HURUN BAY, LAMPUNG Darmawan, Rahmania A
Jurnal Hidrosfir Indonesia Vol 3, No 2 (2008)
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Abstract

It is already known that several ecological factors affected phytoplankton distribution in coastal waters, but since the global increase of Harmful Algal Blooms (HABs) phenomenon, people pay more attention on nutrient enrichment. Previous researches showed that HABs phenomenon was happened at the Lampung Bay, especially Trichodesmium erythraeum and Pyrodinium bahamense (Widiarti, 2000). This study was focus on spatial distribution of phytoplankton around the Hurun Bay. Seventeen sampling sites were investigated for phytoplankton assessment and the result showed that a high phytoplankton distribution was found close to coastal area andgetting decreased toward offshore. This phenomena was support by total phosphate concentration where their high concentration was found close to coastal area. During the observation, it was found that Leptocyindricus dominate the area beside Chaetoceros, which was also dominance at the station 8. Total nitrogen and dissolved oxygen distribution were almost the same among those stations. Furthermore, it could be concluded as well that Hurun Bay was tend to phosphate limited area.
DISTRIBUSI BAHAN ORGANIK DI BENDUNGAN CIRATA Soetrisno, Yudhi
Jurnal Hidrosfir Indonesia Vol 4, No 3 (2009)
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Abstract

It has been widely known that the Cirata reservoir has beenheavily polluted by waste from aquaculture and Industry. Thisresearch was conducted to determine the spread of organic matterin the waters of the Cirata reservoir The result revealed that Cirata reservoir has heavily pollutedby organic waste, so since the year 1997 has become a hypertrophicwaters, and until the year 2003 the situation has not changed. If thepollutant load is not also decrease the Cirata reservoir feared wouldturn into "a the biggest cesspool in the world. that will create variousnegative impacts, like the mass death of fish culture whichsometimes have occurred in Cirata reservoir. Organic matter (pollutant) in dam Cirata water bodiesdominated by dissolved organic matter with a range between 68,2-84,2 percent. Organic matter in the inlet water (derived from B.Saguling) tend to be greater than in the water at the outlet so thatimplied that some organic matter carried in water S. Citarum weresedimentated and decomposed in Cirata reservoir. Fraction of life particle organic matter in total organic matterin the water in the Cirata reservoir and outlets tend to be larger thanthe water in the inlet which entering water from Saguling reservoir.
DISTRIBUSI SALINITAS ESTUARIA DELTA MAHAKAM PERAIRAN KUTAI KARTANEGARA Riyadi, Agung
Jurnal Hidrosfir Indonesia Vol 1, No 3 (2006)
Publisher : Jurnal Hidrosfir Indonesia

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Abstract

Many estuary have a different salinity distribution, influence for the differentlevel of tide, river discharge flow, velocity and current direction. Januari 2006 at Delta Mahakam, going to salinity measurement activity covered by four village closed to the sea, that is Kersik, Marang Kayu, Muara Jawa and Muara Kembang. Water deep at Delta Mahakam relatif shallow, around 0.5 9 meter. Every estuary founded 2 5 point measurement salinity from the surface water until bottom and found the different for the salinity distribution. Kersik region have a higher salinity until 30 psu, whereas at the Muara Kembang region salinity level only 12 psu with a distance from the coast line about 3 km. This location similar with the Muara Jawa region. Pattern circulation and stratification water estuary base for clasification, Marang Kayu region have a mix completelly or vertical homogeneous estuary, while a Kersik, Muara Kembang and Muara Jawa region have a moderat sratification estuary. This type is very common in Indonesia, fresh water flow throungh to the river very dominant at several estuary.
PEMETAAN TINGKAT KEPEKAAN LINGKUNGAN PESISIR DI KOTA SEMARANG Wibowo, Mardi
Jurnal Hidrosfir Indonesia Vol 4, No 1 (2009)
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Abstract

Coastal zone of Semarang area has big potencial in fishery, tourism, industrial and service activities. In development of Semarang s coastal zone, is met much of environmental problems such as abration, land subsidence, sedimentation, water and land pollution and seawater intrusion. On the other hand, this area has limited carrying capacity and very sensitive to oil spill pollution and sedimentation. Therefore it is need index environmental sensitivity assessment/mapping with Geographical Information System (GIS) technology in Semarang s coastal zone. For Semarang s coastal zone development plan, should be: western part of Semarang s coastal zone is developed as fishery cultivation; central part as industrial, residential area activity and eastern part as fishery activity with special treatment and protection.
BENTIK MAKROINVERTEBRATA SEBAGAI BIOINDIKATOR POLUSI LAHAN PERAIRAN Tjokrokusumo, Sabaruddin Wagiman
Jurnal Hidrosfir Indonesia Vol 1, No 1 (2006)
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Abstract

Inline with increasing population growth and progressive development inIndonesia, implementation of environmental regulation and enforcement ofenvironmental law, aquatic ecosystem was impacted by wastewater pollutionfrom several sources, including point and non-point sources of pollution.Aquatic pollution could be seen physically and can be traced through chemical and biological monitoring. Biologically water pollution can be detected through occurrence of flora and fauna of stream dwelling organisms because they were interacted physically and adapted with daily pollution materials and wastewater loadings. Stream dwelling flora and fauna either benthic macro and micro organisms have ability to adapt and assimilate pollution based on their sensitivities. Therefore their variable sensitivities can be used for approaching water pollution index. Hynes (1977) stated that water flora and fauna can be used as indicators of water pollution, such as algae, bacteria, protozoa, macroinvertebrates, and fish. However, a group of macro-invertebrates has been used for biomonitoring for decades, because of their habitat preferential factors, their slow mobility, biodiversity, and sensitivity. In addition, macroinvertebrates can been seen with naked eyes or using only with simple devices. A macroinvertebrate is an organism without backbone dwelling water ecosystem as its niche and habitat. This animal is ubiquitous in freshwater habitat, and also in brackish water and even in marine environment. An effort to use this biota as indicator of water pollution has been attempted in foreign countries such as Europe, America and Australia, and even South Africa. We believe that this kind of method can be applied one day in Indonesia.
KARAKTERISTIK LINGKUNGAN PERAIRAN HABITAT BENIH DAN INDUK IKAN KERAPU DI PERAIRAN PANGKEP, SULAWESI SELATAN Aliah, Ratu Siti; Amarullah, M. Husni; Sachoemar, Suhendar I.
Jurnal Hidrosfir Indonesia Vol 2, No 3 (2007)
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Abstract

The environmental characteristics of seed and broodstock of the grouper, a reef fish species was investigated in the Pangkep water area, South Sulawesi to understand the water quality of the physical and chemical parameters condition. The environment of the Pangkep area was found in a good condition and it is suitable for habitat of the grouper as a reef fish though in some area the reef has degraded due to the utilization of an illegal fishing devise such bomb and cyanide. But application of the local wisdom in some area of Pangkep has succeeded in protecting the reef and fish population to serve the life of the islands people.Keywords: The environmental characteristics, seed and broodstock, grouper, Pangkep
KUALITAS AIR DAN DINAMIKA FITOPLANKTON DI PERAIRAN PULAU HARAPAN Soetrisno, Yudhi
Jurnal Hidrosfir Indonesia Vol 3, No 2 (2008)
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Abstract

This research was conducted to known water quality and phytoplankton dynamics in the coastal of Harapan island. The research reveal that during the period of research the coastal water of Harapan island was an olygotrophic withphytoplankton density about 654,7-1.745 cells/ml. The phytoplankton community in November was dominated by Thalassionema sp. (303.64 cells/ml); in 10 December was by Pseudonitzchia sp (117,7 cells/ml); in 7 January was byChaetoceros sp (218 cells/ml), in 28 January was by Trichodesmium sp; (727,3cells/ml) and in 22 April was by Chaetoceros sp. (775.8 cells/ml). It have to payattention to the dominating phytoplankton community by Pseudonitzchia sp andTrichodesmium sp due to their bloom will create negative impact to otherorganisms and ecosystem stability.
PENILAIAN DAMPAK KENAIKAN MUKA AIR LAUT PADA WILAYAH PANTAI: STUDI KASUS KABUPATEN INDRAMAYU Dasanto, Bambang Dwi
Jurnal Hidrosfir Indonesia Vol 5, No 2 (2010)
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Abstract

Indramayu is located on the North Coast of Java, and their the physical characteristics are low elevation, flat topography and slope about 2%. This region is vulnerable to sea level rise and / or high tide. The rate of sea level rise in this region is about 0.2 mm / year. This rate is not consideringexpansion of sea temperatures, and melting of polar ice volume. Based on the global scenario, the rate of sea level rise in the study area is a 10 mm / year and the year 2000 as the baseline year. Sea level around Indramayu region could expose many more thousands of people and billions of Rupiahs in assets to flooding. To investigate this condition, four sea level events (0.5, 1.0, 2:53 and 3:03 m) are considered in this study. Based on 0.5 and 1.0 meter of sea level four sub-district (Kandanghaur, Losarang, Sindang and Indramayu) can be inundated. For 2.53 and 3.03 meterof sea level, the flood direction to the south and almost the entire northern coast of Indramayu is affected by flooding. Four scenarios of sea level can predict the flood area, that are, around 2900, 7300, 34 600 and 42 000 ha. Number of people exposed and threatened by floods due to changes in sea level is approximately 29 000, 100 000, 351 000 and 579 000 inhabitants. The more widespread and the number of people threatened by flooding, the amount of the loss is also higher, namely 1.1, 1.9, 82.6 and 104.3 billion rupiah. In the period of 0.5 and 1.0 meter of sea level, the highest losses are in the fish pond sector, but when combined with high tide (sea surfaceheight reaches 2.53 and 3.03 m) then the paddy fields suffered very high losses.
CAD_TOOL (CAGE AQUACULTURE DECISION SUPPORT TOOL) PERANGKAT PENDUKUNG KEPUTUSAN DALAM BUDIDAYA KERAMBA JARING APUNG Santoso, Arif Dwi
Jurnal Hidrosfir Indonesia Vol 3, No 1 (2008)
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Abstract

CADS_TOOL is a software decision support tool for floating net cages management which constructs of two elemens, software and technic module. It has been developed by the copyright holders (the Australian Centre of International Agriculture Research ( ACIAR ), the Australian Institute of Marine Science ( AIMS ) and the Departemen Kelautan dan Perikanan ( DKP : Ministry of Marine Affairs and Fisheries, Indonesia)as a tool. The objective of this software is to classify a site, to select the best site from several site alternatives, to calculate the sustainable holding density of a chosen site and to perform a basic economic appraisal of a farm at that site. CADS_TOOL includes 4 models for calculating holding or carrying capacity as sub-tabs under the Holding Capacity tab. For marine cages, the methods used are: Simplified MOM based on Stigebrandt et al., (2004), Tookwinas et al. (2004) and Hanafi et al. (2006), while Pulats et al. (2003) is used for freshwater cages in lakes/dams. In this paper will describe only a Tookwinas model.

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