scholarly journals KUALITAS LINGKUNGAN PERAIRAN PANTAI DI SEKITAR LOKASI TAMBAK PERIKANAN KECAMATAN GEROKGAK KABUPATEN BULELENG BALI

2020 ◽  
Vol 14 (2) ◽  
pp. 111
Author(s):  
Beny Mustofa ◽  
I Wayan Arthana ◽  
Ni Luh Watiniasih
Keyword(s):  
Water Quality ◽  
Research Method ◽  
Species Abundance ◽  
Field Research ◽  
Dominant Type ◽  
Blue Green Algae ◽  
Sampling Locations ◽  
Quality Of Waters ◽  
Better Than

The purpose of this study was to determine the quality of waters, community structure of phytoplankton and zooplankton around the fishponds waters of Gerokgak Subdistrict. This research was conducted for 2 months, from May to June 2019. There were three sampling locations, namely in Gerokgak, Patas and Sumberkima Villages. The research method used was field research using quantitative analysis of phytoplankton biological indice. The waters condition around the Gerokgak Subdistrict waters was rather polluted, except for the around Sumberkima Village waters. The quality of the waters of Sumberkima Village was better than that of Gerokgak Village and Patas Village waters. Plankton abundance in the waters of Sumberkima Village was slightly low. The highest abundance of plankton in the waters of Patas Village and the lowest in Gerokgak Village waters. The dominant type of plankton was Cyanophyceae (blue-green algae). Keywords: water quality; plankton; species; abundance.

scholarly journals ANALISIS KESESUAIAN PERAIRAN UNTUK BUDIDAYA IKAN KERAPU MACAN (Epinephelus fuscoguttatu) DI PERAIRAN PULAU TEGAL KECAMATAN TELUK PANDAN KABUPATEN PESAWARAN

2018 ◽  
Vol 6 (2) ◽  
pp. 705 ◽  
Author(s):  
Glenn Valentino ◽  
Abdullah Aman Damai ◽  
Herman Yulianto
Keyword(s):  
Water Quality ◽  
Secondary Data ◽  
Fish Farming ◽  
Primary Data ◽  
Marine Aquaculture ◽  
Quality Of Waters ◽  
Epinephelus Fuscoguttatus ◽  
Tiger Grouper ◽  
Physical And Chemical

Tiger grouper is a marine aquaculture commodities that has good prospects to be developed. One of the areas that could potentially be used as a place of tiger grouper fish farming is the Tegal Island, Pesawaran. The purpose of this research was to analyze the level of water quality for fish farming tiger grouper (Epinephelus fuscoguttatus). This research was carried out in March-May 2017 descriptive analytic nature by doing the observations on the quality of waters which include physical and chemical parameters. The data that used in this research sourced from primary data about the suitability waters of the island while the secondary data is form in research location maps. There were 4 sampling stations which determined with global positioning system (GPS). The results showed that the water quality which is owned by the island's waters on station 1, 2, 3 and 4 were in the quite appropriate category for the cultivation of tiger grouper.

scholarly journals Pesquisa de campo qualitativa: uma vivência em geografia humanista

GeoTextos ◽  
2011 ◽  
Vol 6 (2) ◽  
Author(s):  
Rita Jaqueline Nogueira Chiapetti
Keyword(s):  
Everyday Life ◽  
Oral History ◽  
Research Method ◽  
Field Research ◽  
Research Experience ◽  
The South ◽  
Humanistic Geography ◽  
The People ◽  
Humanistic Approach

O objetivo deste artigo é descrever a experiência de uma pesquisa de campo qualitativa em Geografia, com uma abordagem humanista. A pesquisa de campo foi feita no município de Itacaré, sul do estado da Bahia, com o propósito compreender como os sujeitos de Itacaré percebem o rio das Contas, qual é o significado do rio para eles. Como método de pesquisa de campo, optamos pela história oral e pelas técnicas da entrevista, da observação e, ainda, pelo registro de paisagens através de fotografias. A nossa presença em Itacaré foi importante para o êxito da pesquisa porque pudemos conhecer melhor as pessoas e o seu cotidiano, fato que contribuiu para a qualidade das informações contidas nas 41 entrevistas feitas. Também, essa convivência com as pessoas do lugar foi uma grande experiência vivida na perspectiva da Geografia Humanista. Abstract QUALITATIVE FIELD RESEARCH: EXPERIENCE IN HUMANISTIC GEOGRAPHY This paper aims at describing the experience of a qualitative field research in Geography under a humanistic approach. The field research was carried out in Itacaré, located in the south of Bahia state, aiming at understanding how the individuals from Itacaré perceive Rio das Contas, what the river means to them. We have chosen oral history as field research method and the techniques of oral interview, observation and the record of landscapes through photography. Our presence in Itacaré was critical for the field research’s success as we could get to know better the people and their everyday life, which contributed for the quality of the information contained in the 41 oral interviews collected. Also, staying with these people was a valuable experience under the Humanistic Geography perspective.

scholarly journals Quality of water resources in the Niger basin and in the region of Lagos (Nigeria)

2017 ◽  
Vol 13 (1) ◽  
pp. 51-60 ◽  
Author(s):  
Olusegun Adeaga ◽  
Gil Mahe ◽  
Claudine Dieulin ◽  
Francoise Elbaz-Poulichet ◽  
Nathalie Rouche ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Resources ◽  
Trace Element ◽  
Quality Standards ◽  
Water Type ◽  
Metal Concentrations ◽  
Quality Of Water ◽  
Sampling Locations ◽  
Trace Element Contamination

AbstractWater quality studies in Nigeria are usually conducted at local scales and limited to a restricted number of chemical contaminants, while reliable data on trace metal concentrations (including arsenic) are relatively scarce. This study focuses on the quality of available renewable water resources in terms of major ion and trace element concentrations at selected sampling locations in the Lower River Niger basin and part of the Lagos region. A screening of water contamination by arsenic and heavy metals was carried out through water sampling at selected locations using in situ measurement and laboratory testing to estimate heavy metal concentrations and water type. The analysis reveals moderate trace element contamination of the water resources, with the exception of Pb, while Mn and, to a lesser extent, Al exceeded WHO quality standards, but the Arsenic concentrations are within drinking water quality standards and are safe for consumption and irrigation, while the water type is Bicarbonate.

scholarly journals Keanekaragaman dan Kemelimpahan Tumbuhan Paku di Cagar Alam Donoloyo sebagai Bahan Pengembangan Multimedia Interaktif Biologi di SMA

2020 ◽  
Vol 2 (2) ◽  
pp. 104
Author(s):  
Fitria Nur Hasanah
Keyword(s):  
High School ◽  
Research Method ◽  
Interactive Multimedia ◽  
Nature Reserve ◽  
Interactive Media ◽  
Species Abundance ◽  
Biology Teacher ◽  
Alternative Source ◽  
Quadrat Method

This study aims 1) to determine the index of species abundance, characteristics, morphology of ferns in the nature reservearea of Donoloyo, Watusomo, slogohimo 2) to obtain an alternative source of learning biology in high school about the abundance of ferns based on interactive multimedia in the form CD 3) to find out the multimedia validation of interactive learning biology of ferns. This research method is descriptive quantitative exploration, the instrument used is a direct observation technique with the quadrat method and validation sheet. The results of the study showed that in the Donoloyo nature reserve, 12 species of ferns were found in 2 classes and 5 families which showed in the medium category. Observations of ferns are used as learning resources in the form of interactive multimedia learning. The quality of interactive media assessed by 3 validators namely material experts, media experts, and biology teacher get a percentage >80% (very valid) interactive multimedia is ready to be used as a learning media for biology in high school.

scholarly journals Ecological restoration and effect investigation of a river wetland in a semi-arid region, China

2015 ◽  
Vol 368 ◽  
pp. 417-423
Author(s):  
S. Xu ◽  
X. Jiang ◽  
Y. Liu ◽  
Y. Fu ◽  
Q. Zhao
Keyword(s):  
Water Quality ◽  
Economic Value ◽  
Level Control ◽  
Wetland Ecosystems ◽  
Restoration Techniques ◽  
Semi Arid Region ◽  
Ecological Methods ◽  
Regional Water ◽  
Better Than

Abstract. River wetlands are heavily impacted by human intervention. The degradation and loss of river wetlands has made the restoration of river ecosystems a top priority. How to rehabilitate rivers and their services has been a research focus. The main goal of it is to restore the river wetland ecosystems with ecological methods. The Gudong River was selected as a study site in Chaoyang city in this study. Based on the analysis of interference factors in the river wetland degradation, a set of restoration techniques were proposed and designed for regional water level control, including submerged dikes, ecological embankments, revegetation and dredging. The restoration engineering has produced good results in water quality, eco-environment, and landscape. Monthly reports of the Daling River show that the water quality of Gudong River was better than Grade III in April 2013 compared with Grade V in May 2012. The economic benefit after restoration construction is 1.71 million RMB per year, about 1.89 times that before. The ratio of economic value, social value and eco-environmental value is 1:4:23.

New challenges for the management of plant nutrients and pathogens in the Waikato River, New Zealand

2001 ◽  
Vol 43 (5) ◽  
pp. 137-144 ◽  
Author(s):  
W. N. Vant
Keyword(s):  
Water Quality ◽  
Algal Blooms ◽  
Diffuse Sources ◽  
Industrial Wastewaters ◽  
The Past ◽  
Green Algal ◽  
New Challenges ◽  
Better Than ◽  
Waikato River

The water quality of the Waikato River is currently much better than it was in the 1950s. Major improvements in the treatment of the sewage and industrial wastewaters which are discharged to the river mean that levels of indicator bacteria in the lower reaches of the river are now many times lower than in the past. Eve so, conditions are still not suitable for swimming, and blue-green algal blooms occur at times. Non-point or diffuse sources of contaminants now dominate the nutrient and pathogens budgets. Progressively-intensifying farming, particularly in lowland areas, is thought to contribute the majority of the contaminants found in the river. Future improvements in water quality will therefore depend more on activities like changes to farming practice – such as retiring the riparian margins of lowland tributaries of the river – than on further advances in wastewater treatment.

Effect of Wastewater Injection on Ground Water Quality

1992 ◽  
Vol 25 (12) ◽  
pp. 283-286
Author(s):  
M. Legeas ◽  
J. Carré ◽  
Ph. Mérot
Keyword(s):  
Water Quality ◽  
Ground Water ◽  
Coastal Area ◽  
Salt Water ◽  
Treatment Plant ◽  
Water Interface ◽  
Ground Water Quality ◽  
Quality Of Waters ◽  
Overflow Pipe

Effluents from the treatment plant of Saint Jean de Monts and Saint Hilaire de Riez have been injected into a confined ground water for twelve years. This ground water is connected with the sea. Effluent floats on the surface of the aquifer and it disperses by dilution at the freshwater/salt water interface. The aquifer acts as a direct overflow pipe. The injection of effluent has preserved the quality of waters in the coastal area and in the Breton Marsh.

scholarly journals Water Quality, Survival, and Growth of Red Tilapia, Oreochromis niloticus Cultured In Aquaponics System

2018 ◽  
Vol 47 ◽  
pp. 02006
Author(s):  
Eri Setiadi ◽  
Yohana R. Widyastuti ◽  
Tri Heru Prihadi
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Oreochromis Niloticus ◽  
Quality Parameters ◽  
Leaf Production ◽  
Red Tilapia ◽  
Survival And Growth ◽  
Good Price ◽  
Better Than

Red tilapia, Oreochromis niloticus is the main commodity of freshwater fish in Indonesia. Red tilapia have a good price compared to tilapia. The aims of this experiment to determine of survival, growth, and water quality of red tilapia cultured in aquaponic system. The treatment of this experiment, namely A) Red tilapia cultured without aquaponic (control), B) Red tilapia cultured with pakcoy, and C) Red tilapia cultured with caisin. The result showed that the highest of survival rate, weight, and length absolute found at Red tilapia cultured with pakcoy (96.00±1.73%, 32.31±0.74g, and 7.57±0.21 cm) and Caisin (96.00±1.73%, 32.31±0.74g, and 7.57±0.21 cm) than that of without aquaponic (86.67±1.15%, 25.77±1.05g, and 6.43±0.31 cm) (P<0.05). Vegetable leaf production of pakcoy was 6.57±0.16 Kg and Caisin was 6.17±0.11 Kg. The water quality parameters such as DO, TAN, nitrite, and nitrate of Red tilapia cultured using aquaponics was better than that of without aquaponic.

scholarly journals Tingkat dan laju penurunan kualitas air di DAS Brantas Malang Raya

2019 ◽  
Vol 5 (2) ◽  
pp. 185
Author(s):  
Ima Yudha Perwira
Keyword(s):  
Water Quality ◽  
Electrical Conductivity ◽  
Dissolved Oxygen ◽  
Organic Materials ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Decrease Rate ◽  
Better Than

The decrease level of water quality of Brantas Watershed in Malang Raya was observed in this study. The aim of this study was to observe the decrease level of water quality of Brantas Watershed from Batu to Malang City. This study was carried out in the Brantas Watershed of Malang Raya (8 stations: A, B, C, D, E, F, G, and H) for 18,4 Km. The water quality parameters observed in this study were: CODmn (permanganometry), CODcr (CODmn correlation based analysis), dissolved oxygen (DO) (Winkler iodometry), TDS and electrical conductivity (EC) (EC meter), pH (pH meter), and turbidity (Turbidity meter). The result showed the value of CODmn: 1,8-10,2 mg/L, CODcr: 5,6-31,5 mg/L, DO: 4,0-6,1 mg/L, TDS: 204-289 mg/L, EC: 430-617 µS/cm, pH: 7,1-7,6, and turbidity: 2,02-10,30 NTU. There are 3 stations (A, B, and C) with 1st class water quality, 1 station (D) with the 2nd class water quality, and 4 stations (E, F, G, and H) with 3rd class water quality. The decrease of water quality in the Brantas Watershed from Batu to Malang City was up to 3 times with a decrease rate of 2,3 mg/L-1Km-1. The decomposition of organic materials in the water of Batu City and western part of Malang City is relatively better than that of central parts of Malang City which might be caused by the over capacity of recovery (Self-purification mechanism).

Quality Evaluation of Jajrood River (IRAN) by Quality Indices Methods

2013 ◽  
Vol 650 ◽  
pp. 652-657
Author(s):  
Mohammad Mirzaei ◽  
Hamed Hasanian
Keyword(s):  
Water Quality ◽  
Quality Index ◽  
Quality Indices ◽  
Wet Season ◽  
Management Actions ◽  
Acceptable Quality ◽  
Negative Effect ◽  
Dry Seasons ◽  
Better Than

This Regular evaluation and analysis of river quality helps accurate management to reach acceptable quality. In this study, water quality indices (WQI) method applied to evaluate quality of Jajrood River which is one of the main sources of Tehran drinking water. It helps to subsidize management actions in Jajrood watershed. Sampling carried out for 9 years during 2001-2010 in 10 stations along the river in wet and dry stations to identify water quality and the main source of pollution. Results show water quality in all stations classifies as medium according to National Sanitation Foundation (NSF) and water quality index in wet season is better than the corresponding value in dry seasons. Entrance of pollution during the upstream of Latian Dam (especially in populated centers) has negative effect on the water quality, however river has a good natural attenuation capacity, therefore quality index of river in the main inlet of Latian dam (Lashkarak Bridge) classifies as medium. Collecting wastewater at the populated centers and developing soil conservation and controlling erosion at the upstream of watershed can effectively improve the water quality of river.

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