scholarly journals Effects of periphyton on monoculture of Puntius gonionotus

2018 ◽  
Vol 8 (2) ◽  
pp. 13-23
Author(s):  
MI Hoque ◽  
AKMF Rahman ◽  
MA Mansur ◽  
S Rahman
Keyword(s):  
Experimental Period ◽  
Artificial Substrate ◽  
Total Alkalinity ◽  
Cow Dung ◽  
Fish Production ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Triple Super Phosphate ◽  
Average Size ◽  
Experimental Ponds

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

scholarly journals Use of Duckweed as Feed for Fishes in Polyculture

1970 ◽  
pp. 157-160
Author(s):  
ANMA Kabir ◽  
MA Hossain ◽  
MS Rahman
Keyword(s):  
Body Weight ◽  
Dissolved Oxygen ◽  
Nitrate Nitrogen ◽  
Silver Carp ◽  
Total Alkalinity ◽  
Fish Feed ◽  
Fish Production ◽  
Physico Chemical ◽  
Triple Super Phosphate ◽  
Chemical Factors

Effect of duckweed supplementation as fish feed to polyculture system was investigated. Fish were reared for 90 days with or without duckweed supplementation. The ponds were fertilized with cowdung, urea and triple super phosphate. All the important physico-chemical factors including temperature, transparency, dissolved oxygen, total alkalinity, phosphate-phosphorus and nitrate-nitrogen were within productive ranges for fish culture. Ponds were stocked with silver carp, Thai sharputui, tilapia, common carp and mrigel. After a 90 days rearing period, net fish production was found to be significantly higher in fish fed duckweed at a rate of 20% of body weight compared to fish without duckweed supplement. It was concluded that duckweed can effectively be used as feed for polyculture of fish. Key words: Duckweed; polyculture; feed. DOI: 10.3329/jard.v7i1.4437 J Agric Rural Dev 7(1&2), 157-160, June 2009

scholarly journals Suitability of Duckweed (Lemna minor) as Feed for Fish in Polyculture System

2013 ◽  
Vol 2 (1) ◽  
pp. 42-46 ◽  
Author(s):  
MZH Talukdar ◽  
M Shahjahan ◽  
MS Rahman
Keyword(s):  
Specific Growth ◽  
Lemna Minor ◽  
Survival Rates ◽  
Experimental Period ◽  
Chemical Parameters ◽  
Net Production ◽  
Physico Chemical ◽  
Average Survival ◽  
Specific Growth Rates ◽  
Experimental Ponds

In the present study, we conducted an experiment to evaluate the effects of duckweed (Lemna minor) as feed on fish production in polyculture. The experiment had 2 treatments where in treatment 1 (T1) ponds were supplied with duckweed as feed and in treatment 2 (T2) ponds were kept as control (without supply of duckweed). Average survival rates in T1 and T2 were 90 and 89%, respectively. The specific growth rates (SGR) were higher in T1. Calculated net production in T1 was 6.25 tons ha.-1 yr.-1 and in T2 was 2.84 tons ha.-1 yr.-1. The ranges of physico-chemical parameters analyzed were within the productive limit and more or less similar in all the ponds under both treatments during the experimental period. There were 24 genera of phytoplankton under 5 major groups and 10 genera of zooplankton under 3 major groups found in the experimental ponds. The net production in T1 was significantly higher than that of T2 indicated the use of duckweed as feed for fishes is economically sustainable in polyculture. DOI: http://dx.doi.org/10.3329/ijarit.v2i1.13994 Int. J. Agril. Res. Innov. & Tech. 2 (1): 42-46, June, 2012

scholarly journals Physico-Chemical Analysis of Culture Pond for Induced Pearl Production in Lamellidens marginalis

2020 ◽  
Vol 26 (2) ◽  
Author(s):  
Vijiyata Singh Rathour ◽  
Vijay Kumar Yadav
Keyword(s):  
Chemical Analysis ◽  
Pond Water ◽  
Botanical Garden ◽  
Total Alkalinity ◽  
Total Hardness ◽  
Chemical Parameters ◽  
Colour Temperature ◽  
Physico Chemical ◽  
Calcium Magnesium ◽  
Healthy Growth

Bioassay experiments were carried out in order to evaluate values of physico-chemical parameters of the cultured pond water for induced pearl production in Lamellidens marginalis. The pond was located at Botanical garden of Bipin Bihari P.G. College, Jhansi. The parameters included for this study were Colour, Temperature, Transparency, pH, Free CO2 , DO, Total Hardness, Calcium, Magnesium and Total Alkalinity of cultured pond water and to maintain them for the healthy growth of mussels during the whole culture period for obtaining designer pearls.

scholarly journals Effect of different amounts of feeds on growth and production of fishes in pond polyculture

2021 ◽  
Vol 10 (2) ◽  
pp. 128-136
Author(s):  
S Sultana ◽  
MS Rahman ◽  
KA Jackshay ◽  
K Hasan
Keyword(s):  
Body Weight ◽  
Oreochromis Niloticus ◽  
Labeo Rohita ◽  
Total Alkalinity ◽  
Biological Factors ◽  
Common Carp Cyprinus Carpio ◽  
Physico Chemical ◽  
Carp Cyprinus Carpio ◽  
Supplementary Feed ◽  
Experimental Ponds

An experiment was carried out to evaluate the effects of different amounts of supplementary feeds on growth and production of fishes in polyculture where four different species such as rui (Labeo rohita), mrigal (Cirrhinus mrigala), common carp (Cyprinus carpio) and tilapia (Oreochromis niloticus) were cultured in 6 ponds under three treatments, each with two replications. Eighty fish per decimal were stocked along with the stocking ratio of 1:1:1:1 in all the treatments. Supplementary feeds of rice bran and wheat bran (1:1), at the amount of 5% of body weight were applied in 2 ponds (treatment I) as well as at the amount of 3% of body weight were used in 2 ponds (treatment II) and 2 ponds (treatment III) were as control where no supplementary feed was used. Urea and T.S.P were applied fortnightly at the rate of 60 g decimal-1 and 90 g decimal-1, respectively under all treatments. Physico-chemical and biological factors such as air and water temperature, transparency, rainfall, pH, dissolved oxygen, free CO2, total alkalinity, PO4-P and NO3-N, phytoplankton and zooplankton were studied fortnightly and the limnological conditions were more or less similar in the experimental ponds under three treatments. The calculated gross and net fish productions of fishes under treatment I, treatment II and treatment III were 8.87 and 7.33 ton ha-1 yr-1, 7.12 and 5.58 ton ha-1 yr-1 and 4.69 and 3.16 ton ha-1 yr-1, respectively. Percent increased of net fish productions of treatment I and treatment II were 231.97% and 176.59% higher than that of treatment III (control). The present study reveals that supplementary feeding in fish culture should be done along with fertilization because supplementary feeds are very important to enhance growth of fishes significantly. Int. J. Agril. Res. Innov. Tech. 10(2): 128-136, December 2020

scholarly journals Effects of artificial feeds on growth and production of fishes in Polyculture

2015 ◽  
Vol 4 (2) ◽  
pp. 11-15
Author(s):  
MA Hosen ◽  
M Shahjahan ◽  
MS Rahman ◽  
MJ Alam
Keyword(s):  
Rice Bran ◽  
Wheat Bran ◽  
Soybean Meal ◽  
Silver Carp ◽  
Artificial Feeding ◽  
Total Alkalinity ◽  
Cow Dung ◽  
Fish Production ◽  
Stocking Rate ◽  
Indian Major Carp

A study on the effects of artificial feeds on growth and production of fishes along with some limnological conditions were conducted in polyculture system. Species of Indian major carp (Cirrhinus mrigala) and exotic fishes (Hypophthalmicthys molitrix and Oreochromis niloticus) were stocked in six ponds under two treatments, each with three replications. Stocking rate in both treatments was 100 fish per decimal at the ratio of silver carp: tilapia: mrigal = 2: 2: 1. Fertilization and artificial feeds were given in Ttreatment 1 (T1) and only fertilization was done in Treatment 2 (T2). Wheat bran, rice bran and soybean meal were given daily as artificial feed in T1 in the ratio of wheat bran: rice bran: soybean meal = 2: 2: 1 (by wt). Urea, T.S.P and cow dung were applied fortnightly at the rate of 60 g deci-1, 90 g deci-1 and 2 kg deci-1 respectively. Water temperature, transparency, pH, dissolved oxygen, free CO2, total alkalinity, PO4-P and NO3-N were determined fortnightly and phytoplankton and zooplankton were studied fortnightly. These limnological conditions were more or less similar in the ponds under two treatments and were within suitable ranges. Calculated gross and net yields of fish were 16.56 and 12.48 ton ha-1 respectively in case of fertilization and artificial feeding application (T1) and 9.99 and 5.91 ton ha-1 respectively in case of only fertilization (T2). Application of artificial feed in T1 significantly increased the growth and production of fish more than two times which indicates that artificial feeding in polyculture is very useful for increasing fish production. DOI: http://dx.doi.org/10.3329/ijarit.v4i2.22637 Int. J. Agril. Res. Innov. & Tech. 4 (2): 11-15, December, 2014

scholarly journals Physico-chemical parameters of Itahari sub-metropolitan fish pond, Nepal

2018 ◽  
Vol 30 ◽  
pp. 129-140
Author(s):  
Ganesh Bahadur Thapa ◽  
Joydeb Pal
Keyword(s):  
Oxygen Demand ◽  
Total Alkalinity ◽  
Total Hardness ◽  
Fish Ponds ◽  
Chemical Parameters ◽  
Dissolved Carbon ◽  
Adequate Knowledge ◽  
Physico Chemical ◽  
Dissolved Carbon Dioxide ◽  
Aquatic Flora

Itahari Sub-metropolitan pond is located in the centre of the city. Influence of variations in physico-chemical parameters on aquatic flora and fauna especially in fishes brought strong stress on fishes and increases the incidence of diseases leading to high mortality. Due to lack of adequate knowledge about it, productivity of ponds is very low. In the present study, maximum and minimum variations and correlation between different physico-chemical parameters - air temperature, water temperature, pH, turbidity, total dissolved solids, dissolved carbon dioxide, ammonia, dissolved oxygen, biological oxygen demand, chloride, total alkalinity, total hardness and phosphate were taken into consideration. The water quality of fish ponds were normal except high fluctuation of chloride 4.0 - 44.87mg/l and ammonia 0.48-13.6 mg/l during manuaring period and casual addition of wastes like toilet cleaners, caustic potash etc.. Due to sudden fall in DO less than 4 mg/l during April and May, 2014 and increment of ammonia after addition of toilet wastes in Sept.19, 2015 ; mass mortality of fishes Labeo rohita, Cirrhina mrigala, Hypothalamichthys molitrix, Aristichthysnobilis occurred in the study site.

scholarly journals Assessment of the Water Quality Standard of Brahmani River in terms of Physico-Chemical Parameters

2018 ◽  
Vol 6 (04) ◽  
Author(s):  
Swati Kanungo ◽  
Nirmal Kumar Bhuyan ◽  
Hemanta Kumar Patra
Keyword(s):  
Water Quality ◽  
Quality Standard ◽  
Magnesium Nitrate ◽  
Industrial Wastes ◽  
Total Alkalinity ◽  
Total Hardness ◽  
Chemical Parameters ◽  
Water Quality Standard ◽  
Physico Chemical ◽  
Working Day

The present investigation is aimed at assessing the current water quality standard along the stretch of Brahmani river in terms of physico-chemical parameters. In the selected study area, river Brahmani is receiving a considerable amount of industrial wastes and witnessing a considerable amount of human and agricultural activities .Nine samples were collected along the entire stretches of the river basin during the period from September-2013 to August-2014 on the first working day of every month. Various physico-chemical parameters like pH,, EC, total hardness, total alkalinity sodium, potassium, calcium, magnesium, nitrate, sulphate  D.O., B.O.D. etc. were analyzed. The present study indicates that the water quality of Brahmani river is well within tolerance limit taking the physico-chemical parameters into considerations.

scholarly journals Effects of Fish Population Densities on Growth and Production of Fishes

2013 ◽  
Vol 23 (1-2) ◽  
pp. 63-73
Author(s):  
JK Apu ◽  
MS Rahman ◽  
H Rashid
Keyword(s):  
Population Density ◽  
Cost Analysis ◽  
Silver Carp ◽  
Stocking Density ◽  
Experimental Period ◽  
Fish Population ◽  
Total Alkalinity ◽  
Fish Production ◽  
Net Profit

The experiment was carried out under three treatments each with two replications. Fish population density was 80 fish per decimal (silver carp 32, tilapia 32 and mrigal 16) under treatment-1, 120 fish per decimal (silver carp 48, tilapia 48 and mrigal 24) under treatment-2 and 160 fish per decimal (silver carp 64, tilapia 64 and mrigal 32) under treatment-3. The average initial length and weight of the fingerlings of silver carp, tilapia and mrigal were 7.49, 5.12, and 5.56 cm and 8.00, 2.00 and 1.50 g respectively. The ponds were fertilized fortnightly with cowdung, urea and TSP (triple super phosphate) at the rates of 5 kg, 60 g, and 90 g per decimal, respectively. During the experimental period, the range of water temperature (30.20 to 32.90°C), transparency (28 to 38 cm), dissolved oxygen (8.20 to 10.60 mg/L), pH (6.90 to 7.90), total alkalinity (92.00 to 127.00 mg/L), free CO2 (1.00 to 1.60 mg/L), phosphate-phosphorus (1.00 to 1.90 mg/L), and nitrate-nitrogen (1.90 to 3.90 mg/L) were within the productive range and more or less similar in all the ponds under three treatments. There were 25 genera of phytoplankton under five major groups and 10 genera of zooplankton under three major groups in the experimental ponds. The calculated net fish production of the ponds under treatment-1 was 2.62 ton/ha/yr and that of the ponds under treatment-2 was 4.42 ton/ha/yr and that of the ponds under treatment-3 was 5.18 ton/ha/yr. The net fish production under treatment-2 and treatment -3 were 195.58% and 229.20% higher than that of treatment-1, taking net fish production under treatment-1 for 100%. According to profit-cost analysis the ratios of net profit and total cost under treatments 1, 2, and 3 were 1:0.25, 1:0.45, and 1:0.44. According to growth and production treatment-3 is the best, and according to the profit-cost analysis, treatment-2 (ratio 1:0.45) is the best but it is almost same to that of treatment-3. So, the population density of 160 fish per decimal (under treatment-3) might be considered best. It seems that proper determination of stocking density of different fishes in polyculture is very important to increase fish production.DOI: http://dx.doi.org/10.3329/pa.v23i1-2.16566Progress. Agric. 23(1 & 2): 63 – 73, 2012

scholarly journals Comparative Analysis of some Water Quality Parameters of three Lakes in Jahangirnagar University Campus, Savar, Bangladesh

2016 ◽  
Vol 43 (2) ◽  
pp. 239-250
Author(s):  
Md Ashrafur Rahman ◽  
Sabira Sultana ◽  
Md Abdus Salam
Keyword(s):  
Water Depth ◽  
Quality Parameters ◽  
Total Alkalinity ◽  
University Campus ◽  
Chemical Parameters ◽  
Water Color ◽  
Normal Range ◽  
Temperature Conductivity ◽  
Physico Chemical ◽  
Depth Water

Study was conducted to determine the physico-chemical parameters of water of three different lakes in Jahangirnagar University campus from March to November, 2013. The selected parameters were water depth, water temperature, conductivity, transparency, pH, dissolve O2, free CO2, total alkalinity, hardness, sulfate and water color. Water depth fluctuated from 140 cm to 385 cm, temperature ranged from 250C to 310C, conductivities ranged from 627 ?S/cm to 1544 ?S/cm, transparency from 22 cm to 87 cm, considerable variation of water colors were found and pH ranged from 6.4 to 7.5 without having any significant fluctuation. Dissolve oxygen (DO) ranged from 2.7 mg/l to 7.6 mg/l, carbon dioxide level ranged from 16 mg/l to 62 mg/l, total alkalinity and hardness were ranged from 43 mg/l to 92 mg/l and 63 mg/l to 134 mg/l, respectively with slight variations in different lakes in different months. During the study period, all the spots showed minimum fluctuation of physico-chemical parameters from the normal range without having some exceptions.Bangladesh J. Zool. 43(2): 239-250, 2015

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