scholarly journals Limitations and Prospects of Citizen Participating in Management of Irrigation Pond

2019 ◽  
Vol 38 (3) ◽  
pp. 341-344
Author(s):  
Kohei SHIBAZAKI
Keyword(s):  
Irrigation Pond

scholarly journals Seasonal variation of the plerocercoid ligula intestinalis (L) observed in roach (Rutilus rutilus, L) from the yenice irrigation pond, Çanakkale, Turkey

2004 ◽  
Vol 58 (1-2) ◽  
pp. 127-133 ◽  
Author(s):  
Cemal Oguz ◽  
Öztürk Oguz ◽  
Hayati Güre
Keyword(s):  
Seasonal Variation ◽  
Parasite Species ◽  
Abdominal Cavity ◽  
Rutilus Rutilus ◽  
The Other ◽  
Host Fish ◽  
Roach Rutilus Rutilus ◽  
Mean Intensity ◽  
Ligula Intestinalis ◽  
Irrigation Pond

This study was carried out at the Yenice Irrigation Pond between October 1999 and October 2000. For this study 368 roach (Rutilus rutilus) were examined and 37 parasites and 93 Ligula intestinalis were found in the abdominal cavity of the host (prevalence 10.1%, mean intensity 2.51 specimens/fish). Based on season, the highest number of infected fish occurred during summer (33.3%, 4 parasite/fish), and during the other season the mean intensity of infection was relatively low (prevalence 3.3%, 1 specimens/fish). On the other hand, the parasite species was determined especially on small and medium host fish sizes (2.17-100%). Basic criteria for the assessment of the parasite species of host fish were the general parameters related to parasite populations, which are prevalence, mean intensity, seasonal variation, and relationship between host size and infection.

CONTAINMENT AND REMOVAL OF FUEL OIL FROM GROUNDWATER BENEATH A DENSELY POPULATED HOUSING DEVELOPMENT

1985 ◽  
Vol 1985 (1) ◽  
pp. 267-271 ◽  
Author(s):  
Joseph T. McNally ◽  
Craig G. Robertson ◽  
Ned E. Wehler
Keyword(s):  
Water Table ◽  
Product Recovery ◽  
Water Levels ◽  
Housing Development ◽  
Fuel Oil ◽  
Monitoring Wells ◽  
Irrigation Pond ◽  
New Castle County ◽  
Periodic Monitoring ◽  
Product Thickness

ABSTRACT A leak from a buried pipeline resulted in the loss of approximately 30,000 gallons of No. 2 fuel oil beneath a housing development in suburban New Castle County, Delaware. After seeping to the water table, the resultant hydrocarbon plume threatened the homes as well as a downgradient stream and an irrigation pond. Site geology consisted of a highly-weathered metamorphic rock overlain by varying thicknesses of fill material. A steep water table gradient existed; the depth to the water table ranged between 6 and 17 feet below grade. Two-inch monitoring wells were installed in public easements and the back yards of private residences. The extent of the oil plume was determined by measuring product thicknesses, which ranged from a few inches to over 5 feet, in monitoring wells. To establish hydrodynamic control and prevent further migration of the plume, two eight-inch recovery wells were drilled and configured with water-table depression pumps. For product recovery, Auto-Skimmers were selected because of the variable water levels and need to leave no measurable product thickness in the wells. The potential for product recovery in other parts of the site was determined by performing unattended one-week recovery tests in the two-inch monitoring wells under non-pumping conditions using an Auto-Skimmer. Based on these results, three additional six-inch recovery wells were drilled. The recovery operation successfully halted the advancement of the contaminant plume and protected the downgradient stream and irrigation pond. In addition, more than 3,000 gallons of fuel oil were recovered from the subsurface. After 18 months, the recovery equipment was removed and only periodic monitoring of the monitoring wells was required.

scholarly journals Waste Stabilization Ponds as Teaching and Research Tools

1987 ◽  
Vol 19 (12) ◽  
pp. 389-391 ◽  
Author(s):  
A. Hall ◽  
A. C. Duarte ◽  
J. P. Oliveira
Keyword(s):  
Research Laboratory ◽  
Fish Processing ◽  
Waste Stabilization Ponds ◽  
Teaching And Research ◽  
Septic Tanks ◽  
Irrigation Pond ◽  
Stabilization Ponds ◽  
Waste Stabilization ◽  
In Series ◽  
To Receive

In any campus where there is an excess of land or where a decorative pond is available, it is often possible to establish a system of waste stabilization ponds (WSP) to be used as an open air research laboratory, as source of water for watering the campus grounds and as a demonstration unit for the community at large. One such system, comprising one photosynthetic and one macrophyte pond in parallel, followed by one fish and one irrigation pond in series, was built at the Faro Polythecnic in Portugal. The ponds are proceeded by an underground unit formed by three septic tanks in series followed by two upflow anaerobic filters in parallel. This system is expected to receive 120m3/day of a mixed effluent coming from the sanitary facilities, the refectory and the fish processing laboratory, with concentrations of about 600mg/l in both BOD and SS.

BREACH AND FLOOD OF YAMANOKAMI IRRIGATION POND IN ASAKURA CITY, FUKUOKA PREFECTURE DUE TO 2017 NORTHERN KYUSHU FLOOD

2018 ◽  
Vol 74 (4) ◽  
pp. I_1183-I_1188
Author(s):  
Kengo SUZUKI ◽  
Asataro SHINOHARA ◽  
Hirotaka MORIYA ◽  
Yasuo NIHEI ◽  
Yuri HASEBE ◽  
...  
Keyword(s):  
Fukuoka Prefecture ◽  
Irrigation Pond

scholarly journals Hyperspectral Imaging from a Multipurpose Floating Platform to Estimate Chlorophyll-a Concentrations in Irrigation Pond Water

2020 ◽  
Vol 12 (13) ◽  
pp. 2070
Author(s):  
Geonwoo Kim ◽  
Insuck Baek ◽  
Matthew D. Stocker ◽  
Jaclyn E. Smith ◽  
Andrew L. Van Tassell ◽  
...  
Keyword(s):  
Water Quality ◽  
Chlorophyll A ◽  
Hyperspectral Imaging ◽  
Near Infrared ◽  
Imaging System ◽  
Principal Component ◽  
Hyperspectral Images ◽  
Water Sampling ◽  
Floating Platform ◽  
Irrigation Pond

This study provides detailed information about the use of a hyperspectral imaging system mounted on a motor-driven multipurpose floating platform (MFP) for water quality sensing and water sampling, including the spatial and spectral calibration for the camera, image acquisition and correction procedures. To evaluate chlorophyll-a concentrations in an irrigation pond, visible/near-infrared hyperspectral images of the water were acquired as the MFP traveled to ten water sampling locations along the length of the pond, and dimensionality reduction with correlation analysis was performed to relate the image data to the measured chlorophyll-a data. About 80,000 sample images were acquired by the line-scan method. Image processing was used to remove sun-glint areas present in the raw hyperspectral images before further analysis was conducted by principal component analysis (PCA) to extract three key wavelengths (662 nm, 702 nm, and 752 nm) for detecting chlorophyll-a in irrigation water. Spectral intensities at the key wavelengths were used as inputs to two near-infrared (NIR)-red models. The determination coefficients (R2) of the two models were found to be about 0.83 and 0.81. The results show that hyperspectral imagery from low heights can provide valuable information about water quality in a fresh water source.

scholarly journals The Way of Securing Human Resource for Management of Irrigation Pond in Suburban Areas

2020 ◽  
Vol 39 (Special_Issue) ◽  
pp. 175-182
Author(s):  
Kohei SHIBAZAKI ◽  
Masaya NAKATSUKA ◽  
Takayuki UCHIHIRA ◽  
Satoshi HOSHINO
Keyword(s):  
Human Resource ◽  
Suburban Areas ◽  
Irrigation Pond ◽  
The Way

scholarly journals Effect of the Ecological Management on the Regeneration of the Aquatic Plant Community at the Irrigation Pond

2004 ◽  
Vol 67 (5) ◽  
pp. 515-518 ◽  
Author(s):  
Kazushi YAMADA ◽  
Atsushi NAKASHIMA ◽  
Satoshi MIZOGUCHI ◽  
Kyoichi OGATA ◽  
Takehiko SUZUKI ◽  
...  
Keyword(s):  
Plant Community ◽  
Aquatic Plant ◽  
Ecological Management ◽  
Irrigation Pond
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