Impact of thermal loading and other water quality parameters on the epizootiology of Aeromonas hydrophila infections of centrarchids. [Etiology and host-pathogen relations in red-sore disease of largemouth bass]

1979 ◽  
Author(s):  
G. Esch ◽  
T. Hazen
Keyword(s):  
Water Quality ◽  
Largemouth Bass ◽  
Aeromonas Hydrophila ◽  
Thermal Loading ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Host Pathogen

scholarly journals PENAMBAHAN SARI BUAH BELIMBING WULUH (Averrhoa bilimbi) PADA PAKAN UNTUK MENGOBATI IKAN LELE SANGKURIANG (Clarias sp.) YANG DIINFEKSI Aeromonas hydrophila

2018 ◽  
Vol 5 (2) ◽  
pp. 155-168
Author(s):  
Herdia Agustina ◽  
Ade Dwi Sasanti ◽  
Marini Wijayanti
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Freshwater Fish ◽  
Aeromonas Hydrophila ◽  
Chemical Properties ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Optimum Range ◽  
And Chemical Properties

ABSTRACT Motile Aerhomonas Septicemia (MAS) is one of bacteria diseases which is often attack freshwater fish. Motile Aerhomonas Septicemia (MAS) or hemmorage septicemia caused by bacteria A. hydrophila. The aim of this reserch examine Averrhoa bilimbi juice mixed on feed in order to effect sangkuriang catfish by A. hydrophila. The research was conducted at September until October 2016 in Laboratorium Budidaya Perairan, Fakultas Pertanian, Universitas Sriwijaya and Laboraturium UPT Klinik Universitas Sriwijaya. Method of the research uses Completely Ranomized Design with six treatments and three replications. This research was conducted for 25 days of rearing. The catfish given feed mixed A. b          ilimbi juice about 150 mL.kg-1 (P1), 200 mL.kg-1 (P2), 250 mL.kg-1 (P3) dan 300 mL.kg-1 (P4) with frequency was three times a day. The parameters of this reserch is wound diameter, the percentage of cured fish, hematocrit, growth, food convertion ratio, survival rate, and chemical properties (temperature, pH, DO and ammonia). The results showed that the addition of A. bilimbi juice at P1 be obtained the percentage of cured fish was 64.47% and survival rate was 71.11%. P2 be obtained the percentage of cured fish was 68.89% and survival rate was 73.33%. P3 be obtained the percentage of cured fish was 72.53% and survival rate was 80.00%. P4 be obtained the percentage of cured fish was 95.40% and survival rate was 95.56%. P4 with dose 300 mL.kg-1 feed is the best treatment bacterial A. hydrophila infection of hematocrit was 32%, the percentage of cured fish was 95.40%, and survival rate was 95.56%. Water quality parameters during maintenance is still in a state of optimum range. Keywords: Aeromonas hydrophila, Sangkuriang catfish, Averrhoa bilimbi juice.

Investigation of Some Water Quality Parameters of Pond Water under Mymensingh Municipality

2015 ◽  
Vol 8 (1) ◽  
pp. 85-89
Author(s):  
F Zannat ◽  
MA Ali ◽  
MA Sattar
Keyword(s):  
Water Quality ◽  
Water Samples ◽  
Chemical Properties ◽  
Pond Water ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Urban Region ◽  
Mn Toxicity ◽  
Ph Values ◽  
Drinking Water Standard

A study was conducted to evaluate the water quality parameters of pond water at Mymensingh Urban region. The water samples were collected from 30 ponds located at Mymensingh Urban Region during August to October 2010. The chemical analyses of water samples included pH, EC, Na, K, Ca, S, Mn and As were done by standard methods. The chemical properties in pond water were found pH 6.68 to 7.14, EC 227 to 700 ?Scm-1, Na 15.57 to 36.00 ppm, K 3.83 to 16.16 ppm, Ca 2.01 to 7.29 ppm, S 1.61 to 4.67 ppm, Mn 0.33 to 0.684 ppm and As 0.0011 to 0.0059 ppm. The pH values of water samples revealed that water samples were acidic to slightly alkaline in nature. The EC value revealed that water samples were medium salinity except one sample and also good for irrigation. According to drinking water standard Mn toxicity was detected in pond water. Considering Na, Ca and S ions pond water was safe for irrigation and aquaculture. In case of K ion, all the samples were suitable for irrigation but unsuitable for aquaculture.J. Environ. Sci. & Natural Resources, 8(1): 85-89 2015

Assessement of Water Quality Parameters in Some Potential Pollutant Areas from Romania

2018 ◽  
Vol 69 (8) ◽  
pp. 2045-2049
Author(s):  
Catalina Gabriela Gheorghe ◽  
Andreea Bondarev ◽  
Ion Onutu
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Surface Water Quality ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Quality Data ◽  
Chemical Parameters ◽  
Water Quality Data ◽  
Pollutant Sources ◽  
Water Quality Forecasting

Monitoring of environmental factors allows the achievement of some important objectives regarding water quality, forecasting, warning and intervention. The aim of this paper is to investigate water quality parameters in some potential pollutant sources from northern, southern and east-southern areas of Romania. Surface water quality data for some selected chemical parameters were collected and analyzed at different points from March to May 2017.

Influence of Discharges from Storage Reservoirs on the Tastes and Odours Appearing in the Seine and Marne Rivers

1982 ◽  
Vol 14 (4-5) ◽  
pp. 43-58 ◽  
Author(s):  
M Rizet ◽  
J Mouchet
Keyword(s):  
Water Quality ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Severe Drought ◽  
Storage Reservoirs ◽  
Metabolite Concentrations

This study was conducted in order to understand the taste and odour problems that occurred in the Seine and the Marne rivers during the severe drought of 1976. Samples were taken every 15 days from several locations in the rivers themselves and from storage reservoirs upstream from Paris. Algae and actinomycetes were identified and counted. Metabolite concentrations were measured. These data were correlated with threshold odor numbers and bacteriological water quality parameters.

scholarly journals Spatio-Temporal Analysis of Water Quality Parameters in Machángara River with Nonuniform Interpolation Methods

Water ◽  
2016 ◽  
Vol 8 (11) ◽  
pp. 507 ◽  
Author(s):  
Iván Vizcaíno ◽  
Enrique Carrera ◽  
Margarita Sanromán-Junquera ◽  
Sergio Muñoz-Romero ◽  
José Luis Rojo-Álvarez ◽  
...  
Keyword(s):  
Water Quality ◽  
Temporal Analysis ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Interpolation Methods ◽  
Spatio Temporal

scholarly journals Effect of Maritime Traffic on Water Quality Parameters in Santa Marta, Colombia

2021 ◽  
Vol 9 (5) ◽  
pp. 474
Author(s):  
René Rodríguez-Grimón ◽  
Nestor Hernando Campos ◽  
Ítalo Braga Castro
Keyword(s):  
Water Quality ◽  
Petroleum Hydrocarbons ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Maritime Traffic ◽  
Natural Park ◽  
High Concentrations ◽  
The Impact ◽  
The Relationship ◽  
Multiple Chemical

Since 2013, there has been an increase (>23%) in naval traffic using maritime routes and ports on the coastal fringe of Santa Marta, Colombia. Of major concern, and described by several studies, is the relationship between maritime traffic and coastal contamination. This study proposed a maritime traffic indicator considering the simultaneous effects of several relevant measurements of water quality parameters to estimate the impact of naval activity. The approach involved developing a model including the number of vessels, hull length, and permanence time in berths. In addition, water quality variables, considering climatic seasons, were used to verify association with maritime traffic and touristic activities. The high concentrations of total coliforms (TC) and dissolved/dispersed petroleum hydrocarbons in chrysene equivalents (DDPH) reported by the International Marina of Santa Marta (SM) were affected by the local anthropic activities, including tourism, naval traffic, and urban wastewater discharges. Moreover, our results suggest the occurrence of multiple chemical impacts within Tayrona National Natural Park (PNNT) affecting conservation goals. The estimation of the maritime traffic indicator proposed in this study may be an easy and more complete tool for future studies evaluating the impact of naval activities on environmental quality.

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