scholarly journals Phytoplankton Chlorophyll-a Biomass and the Relationship with Water Quality in Barrang Caddi, Spermonde, Indonesia

2022 ◽  
Vol 23 (1) ◽  
pp. 25-33
Author(s):  
Lilik Maslukah ◽  
Riza Setiawan ◽  
Nurjannah Nurdin ◽  
Muhammad Helmi ◽  
Rikha Widiaratih
Keyword(s):  
Water Quality ◽  
Chlorophyll A ◽  
The Relationship

scholarly journals SEBARAN BAKTERI HETEROTROF, BAHAN ORGANIK TOTAL, NITRAT DAN KLOROFIL-A AIR MUARA SUNGAI CIPASAURAN, SERANG

2018 ◽  
Vol 6 (3) ◽  
pp. 222-229
Author(s):  
Denita Irma Santi ◽  
Norma Afiati ◽  
Pujiono Wahyu Pujiono Wahyu Purnomo
Keyword(s):  
Water Quality ◽  
Chlorophyll A ◽  
Organic Material ◽  
Heterotrophic Bacteria ◽  
Sampling Technique ◽  
Local Communities ◽  
Nutrient Elements ◽  
Purposive Sampling ◽  
Household Activities ◽  
The Relationship

ABSTRAK Muara Sungai Cipasauran merupakan ekosistem yang dimanfaatkan oleh masyarakat setempat untuk kegiatan rumah tangga. seperti mandi, mencuci pakaian dan kegiatan nelayan. Aktivitas kegiatan tersebut menyebabkan masuknya air limbah ke saluran air sungai lainnya. Hilir Cipasauran Muara, berakhir di Pantai Anyer. Kegiatan penangkapan ikan di sekitar Pantai Anyer menunjukkan kualitas air yang relatif baik. Tujuan dari penelitian ini adalah untuk menentukan sebaran bakteri heterotrofik, bahan organik total, nitrat dan klorofil-a, serta untuk mengetahui hubungan antara variabel. Bahan yang digunakan dalam penelitian ini adalah air sampel dari 4 lokasi di muara Cipasauran ke Pantai Anyer. Penelitian ini menggunakan teknik purposive sampling. Pengambilan sampel dilakukan dengan interval dua minggu, masing-masing dengan dua kali pengulangan. Hasil penelitian menunjukkan bahwa jumlah bakteri heterotrofik  di empat stasiun berkisar antara 250-2500 cfu/ml, kandungan bahan organik jumlah berkisar 27,83-100,64 mg/l, konsentrasi nitrat berkisar antara 4,12-11,8 mg/l, dan klorofil-a pada empat stasiun berkisar 0,01- 6,31 mg/m3. Muara Sungai Cipasauran termasuk dalam kategori perairan yang subur (Eutrofik). Analisis regresi berganda memperlihatkan bakteri heterotrof signifikan pada bahan organik total (0,02< p<0,05). Adapun, ekstrak klorofil-a yang dihasilkan dari fitoplankton lebih tergantung kepada kadar nitrat (0,03<p< 0,05) dibandingkan terhadap kadar bahan organik total (0,11>p>0,05), sehingga unsur hara yang lebih banyak dibutuhkan adalah nitrat. Namun tingginya nitrat dapat memicu terjadinya eutrofikasi.  Kata Kunci : Bakteri Heterotrof; Bahan Organik Total; Nitrat; Klorofil-A; Muara Sungai Cipasauran ABSTRACT Cipasauran estuarine ecosystems utilized by local communities for household activities, such as bathing, washing clothes and fishing activities. These activities led to an influx of wastewater into waterways of the river. Downstream Cipasauran Estuary, ends at Anyer Beach. Fishing activities around Anyer Beach indicates the relatively good water quality. The purpose of this study is to determine the distribution of heterotrophic bacteria, total organic material, nitrate and chlorophyll-a, as well as to study the relationship between those variables. The material used in this study is water sampled from 4 location, at the estuary of Cipasauran down to Anyer Beach. The study used purposive sampling technique. Sampling was conducted at intervals of two weeks, each with two replication. The results showed that number heterotrophic bacteria in four stations ranged between 250-2500 cfu/ml, where as total organic materials ranged from 27.83 to 100,64 mg/l, nitrates ranged from 4.12 to 11.8 mg/l, and  chlorophyll-a at four stations ranged from 0.01 to 6.31 mg/m3. Cipasauran estuarine included in the fertile waters (Eutrofik). Regression analysis showed a significant increase in heterotrophic bacterial organic matter total (0.02<p<0.05). So, extract the chlorophyll-a resulting from more phytoplankton depend on nitrate levels (0.03<p<0.05) compared against the total organic material levels (0.11>p>0.05), so the more nutrient elements needed is nitrate. But high nitrate can trigger the onset of eutrophication.                Keywords: Heterotrophic Bacteria, Total Organic Material, Nitrate, Chlorophyll-a Cipasauran Estuary 

scholarly journals ASSESSMENT OF SEAGRASS PERCENT COVER AND WATER QUALITY USING UAV IMAGES AND FIELD MEASUREMENTS IN BOLINAO, PANGASINAN

2019 ◽  
Vol XLII-4/W19 ◽  
pp. 233-240
Author(s):  
M. K. M. R. Guerrero ◽  
J. A. M. Vivar ◽  
R. V. Ramos ◽  
A. M. Tamondong
Keyword(s):  
Water Quality ◽  
Regression Analysis ◽  
Chlorophyll A ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Support Vector ◽  
Percent Cover ◽  
Chl A ◽  
Relationship Of ◽  
The Relationship

Abstract. The sensitivity to changes in water quality inherent to seagrass communities makes them vital for determining the overall health of the coastal ecosystem. Numerous efforts including community-based coastal resource management, conservation and rehabilitation plans are currently undertaken to protect these marine species. In this study, the relationship of water quality parameters, specifically chlorophyll-a (chl-a) and turbidity, with seagrass percent cover is assessed quantitatively. Support Vector Machine, a pixel-based image classification method, is applied to determine seagrass and non-seagrass areas from the orthomosaic which yielded a 91.0369% accuracy. In-situ measurements of chl-a and turbidity are acquired using an infinity-CLW water quality sensor. Geostatistical techniques are utilized in this study to determine accurate surfaces for chl-a and turbidity. In two hundred interpolation tests for both chl-a and turbidity, Simple Kriging (Gaussian-model type and Smooth- neighborhood type) performs best with Mean Prediction equal to −0.1371 FTU and 0.0061 μg/L, Root Mean Square Standardized error equal to −0.0688 FTU and −0.0048 μg/L, RMS error of 8.7699 FTU and 1.8006 μg/L and Average Standard Error equal to 10.8360 FTU and 1.6726 μg/L. Zones are determined using fishnet tool and Moran’s I to calculate for the seagrass percent cover. Ordinary Least Squares (OLS) is used as a regression analysis to quantify the relationship of seagrass percent cover and water quality parameters. The regression analysis result indicates that turbidity has an inverse relationship while chlorophyll-a has a direct relationship with seagrass percent cover.

Correlation Analysis between Primary Productivity Factors and Water Environment Factors

2013 ◽  
Vol 448-453 ◽  
pp. 902-907
Author(s):  
Shih Chieh Chen ◽  
Chao Cheng Chung ◽  
Wen Liang Lai ◽  
Chung Yi Chung ◽  
Hwa Sheng Gau ◽  
...  
Keyword(s):  
Water Quality ◽  
Correlation Analysis ◽  
Chlorophyll A ◽  
Primary Productivity ◽  
Explanatory Power ◽  
Water Environment ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Canonical Variables ◽  
The Relationship

In this study, we use canonical correlation analysis to interpret the relationship between water quality parameters (T, Alk, Cl, EC, TN, TP, UV-254, pH, HPC, DO) and primary productivity parameters (algae and chlorophyll-a). In these two sets of constructed canonical variables, the water quality parameters can account for 39.25% of the total variance of primary productivity. The majority of the explanatory power is from the first set of canonical variables, which has a correlation coefficient of 0.84. The main factors that control chlorophyll-a are HPC, Alk, T, TN, and pH.

scholarly journals RELATIONS OF SEVERAL PHYSICOCHEMICAL PARAMETERS AND PHYTOPLANKTON IN COASTAL KUBU RAYA DISTRICT, WEST KALIMANTAN

2018 ◽  
Vol 9 (2) ◽  
pp. 727-737
Author(s):  
Sri Endah Purnamaningtyas ◽  
Dimas Angga Hedianto ◽  
. Riswanto
Keyword(s):  
Water Quality ◽  
Chlorophyll A ◽  
Phytoplankton Biomass ◽  
Physicochemical Parameters ◽  
High Fertility ◽  
Chemical Parameters ◽  
Phytoplankton Abundance ◽  
High Concentration ◽  
West Kalimantan ◽  
The Relationship

This research was conducted in April, July and October 2013 at 8 (eight) stations: 1. Tj. Intan, 2. Tj. Tempurung, 3. Tj. Bunga Dalam, 4. Tj. Bunga dalam, 5. Tj. Burung, 6. P. Dabung, 7. Tasik Malaya, and 8. Tj. Harapan. This study aims to determine the relationship between several physic-chemical parameters and phytoplankton abundance. The results show the growth of phytoplankton biomass (chlorophyll a) was determined by high concentration of NH4 and NO3, while its growth is limited by turbidity (turbidity). Station that has high fertility in the Coastal District of Kubu Raya is Dabung Island. Keyword: water quality, chlorophyll a, coastal Kubu Raya district

Seasonal dynamics of plankton communities and water chemistry in a eutrophic wetland (Lake Monger, Western Australia): implications for biomanipulation

2000 ◽  
Vol 51 (4) ◽  
pp. 321 ◽  
Author(s):  
Mark A. Lund ◽  
Jennifer A. Davis
Keyword(s):  
Water Quality ◽  
Chlorophyll A ◽  
Food Limitation ◽  
Nutrient Inputs ◽  
Linear Relationships ◽  
Phytoplankton Communities ◽  
Zooplankton Communities ◽  
The Relationship ◽  
Plankton Communities ◽  
Total P

In a large (70 ha) shallow (<2m deep) eutrophic wetland investigated between November 1988 and October 1989, there were marked seasonal changes in water quality and the composition of zooplankton, and to a lesser extent phytoplankton communities, with three distinct groupings evident: summer, winter–spring and autumn. Summer conditions were characterized by high levels of total P (689198 ˜g L –1 ), N limitation, blooms of Microcystis aeruginosa (mean chlorophyll a = 46630 ˜g L –1 ) and zooplankton communities dominated by cyclopoid copepods (Mesocyclops sp. and Microcyclops sp.). Winter–spring conditions were characterized by Secchi disk transparencies to the bed (chlorophyll a <50 ˜g L –1 ), low total P (7140 ˜g L–1 ) and zooplankton communities dominated byDaphnia carinata King. Autumn conditions represented an intermediate state between these two. Significant linear relationships were recorded between chlorophyll a and total P and between chlorophyll a and D. carinata. Abundances of hemipteran predators (Anisops sp.) were correlated with D. carinata, but the relationship did not appear to be causal. The decline in D. carinata in summer was attributed to food limitation. Reductions in nutrient inputs to the lake in 1990–91, resulted in improved water quality and high abundances of D. carinata during summer.

The relationship between musty-odor-causing organisms and water quality in Lake Biwa

1995 ◽  
Vol 31 (11) ◽  
pp. 153-158 ◽  
Author(s):  
M. Kajino ◽  
K. Sakamoto
Keyword(s):  
Water Quality ◽  
Data Analysis ◽  
Green Algae ◽  
Analytical Methods ◽  
Lake Biwa ◽  
Blue Green Algae ◽  
Odor Compounds ◽  
Musty Odor ◽  
The Relationship

Musty odor has occurred annually in Lake Biwa since 1969. Osaka municipal waterworks, which is located downstream of Lake Biwa, has made many efforts to treat musty-odor compounds produced in Lake Biwa from spring through autumn. With the development of analytical methods for the determination of musty-odor compounds, we have been able to confirm that planktonic blue-green algae are the major causes of the musty-odor occurrences. The relationship between the growth of blue-green algae and the water quality was not so apparent. However, through our data analysis focusing on the relationship between musty-odor occurrences due to Phormidium tenue or Oscillatoria tenuis and some nutrients in Lake Biwa, we found that the concentration of nitrate in water may be an important parameter for the estimation of growth of the algae and the musty-odor behavior.

The relationship between health effects in triathletes and microbiological quality of freshwater

1995 ◽  
Vol 31 (5-6) ◽  
pp. 19-26 ◽  
Author(s):  
G. J. Medema ◽  
I. A. van Asperen ◽  
J. M. Klokman-Houweling ◽  
A. Nooitgedagt ◽  
M. J. W. van de Laar ◽  
...  
Keyword(s):  
Water Quality ◽  
Geometric Mean ◽  
Microbiological Quality ◽  
Quality Parameters ◽  
Health Complaints ◽  
E Coli ◽  
Thermotolerant Coliforms ◽  
Microbiological Water Quality ◽  
The Relationship ◽  
Faecal Streptococci

This pilot study was carried out to determine the relationship between microbiological water quality parameters and the occurrence of health complaints among triathletes. Data were collected at an Olympic distance triathlon (n=314) and a run-bike-run (n=81; controls for exposure to fresh water). At the time of the triathlon, the concentrations of Escherichia coli , thermotolerant coliforms, faecal streptococci, entero- and reoviruses, F-specific RNA phages, Salmonella, Campylobacter, Aeromonas, Plesiomonas shigelloides, Pseudomonas aeruginosa and Staphylococcus aureus were examined over the swimming course. Information on the occurrence of health complaints during the competition and in the week thereafter was collected through a written questionnaire. The results show that triathletes and run-bike-runners are comparable with respect to factors other than water exposure (age, sex, training history, physical stress, lower intestinal health complaints during the competition) that may influence the occurrence of health complaints in the week after the competition. Triathletes and run-bike-runners reported gastro-intestinal (7.7% vs 2.5%), respiratory (5.5% vs 3.7%), skin/mucosal (2.6% vs 1.2%), general (3.5% vs 1.2%) and total symptoms (14.8% vs 7.4%) in the week after the event. The health risks for triathletes for all symptom groups are not significantly higher than for run-bike-runners. The geometric mean concentration of faecal indicator bacteria is relatively low: E. coli 170/100 ml; faecal streptococci 13/100 ml, enteroviruses were present at concentrations of 0.1/l. The group of triathletes was homogeneusly and relatively intensely exposed to water; they all swam in the same body of water at the same time and 75% reported to have swallowed freshwater. It was concluded that this study design is suitable to study the relationship between health complaints and microbiological water quality. In the summers of 1993 and 1994, a study will be carried out concerning several run-bike-runs and triathlons in freshwaters of different quality.

The effect of type of water supply on water quality in a developing community in South Africa

1997 ◽  
Vol 35 (11-12) ◽  
pp. 35-40 ◽  
Author(s):  
B. Genthe ◽  
N. Strauss ◽  
J. Seager ◽  
C. Vundule ◽  
F. Maforah ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Supply ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
E Coli ◽  
Guideline Values ◽  
Developing Communities ◽  
Quality Guideline ◽  
And Control ◽  
The Relationship

Efforts to provide water to developing communities in South Africa have resulted in various types of water supplies being used. This study examined the relationship between the type of water supply and the quality of water used. Source (communal taps, private outdoor and indoor taps) and point-of-use water samples were examined for heterotrophic plate counts (HPC), total and faecal coliforms, E. coli, and coliphages. Ten percent of samples were also analysed for enteric viruses, Giardia and Cryptosporidium. Approximately 320 households were included in a case-control study. In addition, a cross-sectional study was conducted. Both studies examined the relationship between different types of water facilities and diarrhoea among pre-school children. The source water was of good microbial quality, but water quality was found to have deteriorated significantly after handling and storage in both case and control households, exceeding drinking water quality guideline values by 1-6 orders of magnitude. Coliphage counts were low for all water samples tested. Enteric viruses and Cryptosporidium oocysts were not detected. Giardia cysts were detected on one occasion in case and control in-house samples. Comparisons of whether in-house water, after handling and storage, complied with water quality guideline values demonstrated households using communal taps to have significantly poorer quality than households using private outdoor or indoor taps for HPC and E. coli (χ2 = 14.9, P = 0.001; χ2 = 6.6, P = 0.04 respectively). A similar trend (although not statistically significant) was observed for the other microbial indicators. The cross-sectional study demonstrated an apparent decrease in health risk associated with private outdoor taps in comparison to communal taps. This study suggests that a private outdoor tap is the minimum level of water supply in order to ensure the supply of safe water to developing communities.

scholarly journals Effect of red algal bloom on growth and production of carps

Our Nature ◽  
2018 ◽  
Vol 16 (1) ◽  
pp. 48-54
Author(s):  
Ram Bhajan Mandal ◽  
Sunila Rai ◽  
Madhav Kumar Shrestha ◽  
Dilip Kumar Jha ◽  
Narayan Prasad Pandit
Keyword(s):  
Water Quality ◽  
Body Weight ◽  
Chlorophyll A ◽  
Total Nitrogen ◽  
Total Phosphorus ◽  
Algal Bloom ◽  
Total Dissolved Solids ◽  
Dissolved Solids ◽  
Aquaculture Farm ◽  
Red Algal

An experiment was carried to assess the effect of red algal bloom on growth and production of carp, water quality and profit from carp for 120 days at Aquaculture Farm of Agriculture and Forestry University, Chitwan. The experiment included two treatments: carp polyculture in non-red pond and carp polyculture in red pond with algal bloom each with three replicates. Carp fingerlings were stocked at 1 fish/m2 and fed with pellet containing 24% CP at 3% body weight. Net yield of rohu was found significantly higher (p<0.05) in non-red ponds (0.38±0.01 t ha-1) than red ponds (0.24±0.05 t ha-1). Survival of rohu (84.9±1.4%), bighead (95.2±2.0%) and mrigal (88.1±14.4%) were also significantly higher (p<0.05) in non-red ponds than red ponds. Red algal bloom affected DO, nitrate and chlorophyll-a, nitrite, total nitrogen, total phosphorus, total dissolved solids and conductivity. However, overall carp production and profit from carp remained unaffected.

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