Evaluation of Physico-chemical Parameters of Water and Soil in Relation to Fish Production of Guthia Taal of Dstrict Bahraich, U.P.

An experiment was carried out on the effects of periphyton on monoculture of Thai sharputi, Puntius gonionotus at the Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh during 7th August to 8th November. In treatment-1 bamboo poles were used as artificial substrate for periphyton production and in treatment-2 there was no artificial substrate (control). Each of the six ponds was stocked with 150 fingerlings of average size 6.41 cm and 3.60 g. The ponds were fertilized fortnightly with manure (cow dung) at a rate of 10 kg decimal-1, urea 60 g decimal-1 and triple super phosphate 90 g decimal-1. During the experimental period, the ranges of physico-chemical parameters viz. air temperature (31.0-35.50C), water temperature (29-320C), water depth (0.56-0.84 m), transparency (32-63 cm), dissolved oxygen (3.5-7.8 mg L-1), pH (6.8-7.9), total alkalinity (44-92 mg L-1), free CO2 (1.5-4.0 mg L-1), phosphate-phosphorus (0.31-1.07 mg L-1) and nitrate-nitrogen (1.12-2.30 mg L-1) were within the productive range and more or less similar in the ponds under treatments-1 and 2. Among the observed biological parameters, there were 35 genera of phytoplankton composed of five groups and 13 genera of zooplankton composed of four groups in the experimental ponds. Thirty three genera under the groups of Bacillariophyceae, Chlorophyceae, Cyanophyceae and Euglenophyceae formed the periphyton on bamboo poles in the experimental ponds. Net fish production of the ponds with periphyton under treatment-1 was about 1.5 times higher than those of the ponds without periphyton (treatment-2). By analysis of variance, it was found that the net fish production of Thai sharputi under treatment-1 was significantly higher than that under treatment-2 (p< 0.05). Finally, it can be concluded that periphyton is one of the preferable food item of Thai sharputi and it is also suggested that growth and production of Thai sharputi can be increased if arrangement is made for periphyton production. Int. J. Agril. Res. Innov. & Tech. 8 (2): 13-23, December, 2018

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Comparative analysis of physico-chemical parameters of some river systems of Ebonyi State, Nigeria

Journal of Aquatic Sciences ◽

10.4314/jas.v34i1.5 ◽

2020 ◽

Vol 34 (1) ◽

pp. 33-41

Author(s):

M.O. Nwabunike ◽

G.V.C. Igwe ◽

I.J. Ochokwu

Keyword(s):

Natural Water ◽

Control Experiment ◽

Pond Water ◽

Water Bodies ◽

Fish Production ◽

Chemical Parameters ◽

Water Parameters ◽

Physico Chemical ◽

Water Fish ◽

Natural Water Bodies

The study comparatively analyzed the general physico-chemical parameters of five different water bodies to assess their suitability for fish production. Four water bodies (Enyigba, Mkpuma, Ameka and Ebonyi) close to quarry sites were selected while the fifth was a culture pond water which served as the control experiment. The water parameters: pH, temperature, dissolved oxygen (DO), free CO2 and transparency were examined using standard methods for 24 months. The results showed that the pattern of temperature variation in all the water bodies examined followed a similar trend with the lowest value observed between December and January. The pond water showed slightly varied pH levels compared to the natural water bodies. The DO contents of Ebonyi, Mkpuma and Enyigba were higher than those recorded from Ameke and pond. Relatively, lower concentrations of free CO2 were recorded in the pond water and Ebonyi river during the harmattan period (December to January) and below the detectable levels. The variation of Sechi disc depth was higher in Enyigba when compared with other water bodies all through the period of the experiment. The trend of transparency was the same in all the water bodies. Keywords: Physico-chemical parameters, natural water bodies, pond water, fish production, Ebonyi State

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Water Quality Assessment of Some Selected Hatcheries at Shambhuganj Mymensingh

Journal of Environmental Science and Natural Resources ◽

10.3329/jesnr.v11i1-2.43390 ◽

2019 ◽

Vol 11 (1-2) ◽

pp. 235-240

Author(s):

MA Mou ◽

R Khatun ◽

MA Farukh

Keyword(s):

Heavy Metals ◽

Water Quality ◽

Natural Resources ◽

Water Quality Assessment ◽

Permissible Limit ◽

Fish Production ◽

Chemical Parameters ◽

Physico Chemical ◽

Study Results

The study was conducted to investigate the physico-chemical parameters and heavy metals content of water in some selected hatcheries at Shambhuganj, Mymensingh. The water samples were collected from seven selected hatcheries during March to April 2019 to examine temperature, EC, TDS, DO, BOD, pH, ammonia, NO3 -, PO4 2- and heavy metals (Cr, Cd, Pb and Ni). The values of temperature, pH, DO, BOD, EC, TDS and ammonia were 28.5 °C, 7.9 to 8.4, 6.8 to 7.8 mg L-1, 0.1 to 0.9 mg L-1, 231.5 to 307.2 μS cm-1, 146 to 200 mg L-1 and 0.04 to o.06 mg L-1, respectively in the studied hatcheries. The NO3 - and PO4 2- content ranged from 0.48 to 0.68 mg L-1 and 0.45 to 0.63 mg L-1, respectively. Among the heavy metals, Pb was found in 5 hatcheries but the values were within the permissible limit. Other heavy metals (Cr, Cd and Ni) were not found in the studied hatcheries. The fish production of the selected hatcheries ranged from 4 to 9 metric ton. The study results revealed that all of the investigated parameters were within the permissible limit and water quality of selected hatcheries was suitable for fish culture. J. Environ. Sci. & Natural Resources, 11(1-2): 235-240 2018

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Physico-Chemical Analysis of Fish Pond Water in Candaba, Pampanga, Philippines

10.26757/pjsb.2017a11008 ◽

2017 ◽

Vol 11 (1) ◽

Keyword(s):

Pond Water ◽

Fish Pond ◽

Fish Production ◽

Fish Ponds ◽

Chemical Parameters ◽

Ph Values ◽

Quality Of Water ◽

Physico Chemical

The study of physico-chemical parameters in fish ponds in Candaba, Pampanga was conducted to determine the quality of water for fish pond from July to August, 2014. Water samples were tested in-situ using probe meter: Thermo Orion Model A920. The results showed variation in the observed parameters at the different sampling stations and two sampling dates. Temperature ranged from 29±16.74 to 35.23±1.01˚C. pH values were 8.70±5.02 to 9.57±1.11. Dissolved oxygen values were 5.20±3 to 7.57±0.77mg/l. Electrical conductivity ranged from 220±0.01 to 489±0.57µS/cm. The values for temperature and DO were higher than accepted values for fish culture while those of other parameters favored for good fish production. The observations in this study suggest that fish production in some fish ponds of Candaba, Pampanga could be practiced without adverse effects posed by the quality of water.

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Physico-chemical parameters of Ikere-Gorge, Iseyin, Oyo State, Nigeria

Ife Journal of Science ◽

10.4314/ijs.v22i2.3 ◽

2020 ◽

Vol 22 (2) ◽

pp. 025-033

Author(s):

S.O. Ajagbe ◽

D.O. Odulate ◽

O.S. Ariwoola ◽

F.I. Abdulazeez ◽

M.T. Ojubolamo ◽

...

Keyword(s):

Water Quality ◽

Electrical Conductivity ◽

Dissolved Oxygen ◽

Water Temperature ◽

Significant Relationship ◽

Trophic Status ◽

Aquatic Organisms ◽

Fish Production ◽

Chemical Parameters ◽

Physico Chemical

Water quality determines the distribution of aquatic organisms within aquatic ecosystem. Deterioration of water quality is of a great concern in freshwater ecosystem because of its adverse effects on freshwater organisms. Therefore, the physico-chemical parameters of Ikere-gorge were examined in this study to determine its suitability for fish production. Air and water temperature, transparency, electrical conductivity and totaldissolved solids were determined in-situ. Dissolved oxygen, alkalinity, hardness, phosphate and nitrate were determined with standard analytical methods. The selected parameters examined in this study were determined monthly between January 2017 and December 2018. The mean monthly values of physico-chemical parameters of Ikere-gorge obtained are as follows: air temperature (27.46±1.82 ºC), water temperature (28.14±1.57 ºC), pH (6.50±0.63), water transparency (1.34±0.12 m), dissolved oxygen (5.93±0.29 mg/L), electrical conductivity (130.59±7.59 μS/cm), total dissolved solids (67.67±4.37 mg/L), total hardness (56.70±15.76 mg/L), total alkalinity (58.97±9.53 mg/L), total phosphate (2.22±0.67 μg/L) and nitrate (2.90±1.23 μg/L). Likewise, it was observed that surface water temperature had negative significant relationship with dissolved oxygen at P < 0.05.Transparency has negative significant relationship with phytoplankton abundance at 0.05 (P ˂ 0.05) and with phosphate and nitrate at 0.01 significant level. The annual mean of Trophic Status Index based on total phosphate is 15.04±1.63. This classified Ikere-gorge trophic status as mesotrophic at stage 2. The result of this study reveals the mesotrophic status of Ikere-gorge and water quality are within the ranges recommended for fish production and should be adequately managed for sustainable fish production. Keywords: Aquatic organisms, Ecosystem, Freshwater, Trophic state, Abundance

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