scholarly journals Comparative Study on some Organic Manure Commonly Used in Aquaculture

Our Nature ◽  
1970 ◽  
Vol 7 (1) ◽  
pp. 163-167 ◽  
Author(s):  
D. Chakrabarty
Keyword(s):  
Suspended Solids ◽  
Rock Phosphate ◽  
Total Suspended Solids ◽  
Organic Manure ◽  
Direct Application ◽  
Cow Dung ◽  
Chemical Parameters ◽  
Farm Yard Manure ◽  
Significant Difference ◽  
Physical And Chemical

Assorted physical and chemical parameters were measured in glass aquaria (10 l) receiving some commonly used organic manure namely cow dung (CD), compost charged with rock phosphate (CR), vermin-compost charged with rock phosphate (VCR), horse dung (HD) and farm yard manure (FYM). There was no significant difference in the moisture content of the manures tested. The values of pH, conductance, TDS, PO4-P, NH3-N was highest in the VCR treatment indicating a better manurial value for VCR than others. The size of fibers of VCR was significantly (P>0.05) lower in size when compared with other manures tested. There was almost no difference in fiber content of the manures tested except VCR where it was significantly low (p<0.05) than other four. The different organic manures used can be graded in the following descending order in manurial value as direct application manure: VCR (T3) > CD (T1) > CR (T2) > HD (T4) > FYM (T5). The values of total suspended solids (TSS) imparted by the manures showed significant differences (P>0.05) among various treatments and was in the following descending order: HD (T4) > CD (T1) > CR (T2) > FYM (T5) > VCR (T3). This indicates that the application of (VCR) will pass on less fiber garbage to aquatic body.Key words: Limnology, aquaculture, vermi-compost, organic manure, rock phosphateDOI: 10.3126/on.v7i1.2566Our Nature (2009) 7:163-167

scholarly journals Physico-Chemical Variables and Fish Parasites of River Neelum Azad Jammu and Kashmir, Pakistan

2015 ◽  
Vol 2 (2) ◽  
Author(s):  
Nuzhat Shafi ◽  
Javed Ayub ◽  
Tasleem Akhtar
Keyword(s):  
Suspended Solids ◽  
Total Suspended Solids ◽  
Fish Population ◽  
Fish Parasites ◽  
Chemical Parameters ◽  
Jammu And Kashmir ◽  
Physico Chemical ◽  
Significant Difference ◽  
Bottom Mud ◽  
Argulus Foliaceus

The physico-chemical parameters and the fish parasites of the River Neelum were studied at three sampling sites, i.e., Pattika, Tali Mandi, and Domail. Water temperature and rate of flow of water were significantly higher at Domail than Pattika and Tali Mandi. ANOVA showed that dissolved oxygen, total suspended solids, inorganic suspended solids, and organic matter of the bottom mud kept on fluctuating and showed a significant difference between three selected sites. Although, these variables showed variations, they remained within tolerable limits set by WHO. Three species of potentially harmful parasites, i.e., Dactylogyrus vastator, Procamallanus laevionchus, and Argulus foliaceus were isolated from fish population of the River Neelum, however, these parasites do not pose any severe threats to general fish life

scholarly journals Cladocera remains and vegetation types to assess the state of oxbows

2018 ◽  
Vol 29 ◽  
pp. 27-39
Author(s):  
István Gyulai ◽  
Csilla Lakatos ◽  
János Tamás Kundrát ◽  
Zsuzsanna Balogh ◽  
Edina Simon ◽  
...  
Keyword(s):  
Surface Sediment ◽  
Ecological Status ◽  
Open Water ◽  
Vegetation Types ◽  
Freshwater Lakes ◽  
Chemical Parameters ◽  
Habitat Types ◽  
Cladocera Remains ◽  
Significant Difference ◽  
Physical And Chemical

We assessed the usefulness of Cladocera remains for establishing the ecological status of oxbows and also tested the association of Cladocera species with various vegetation types. Cladocera remains were collected from the surface sediment of four habitat types (tangled vegetation, open water, reeds and tunnels) and 15 physical and chemical parameters of surface water were studied. In the surface sediment samples, we identified 32 Cladocera taxa. There was a significant difference in the number of species amongst habitat types as per ANOVA. The benthic and plant associated Cladocera communities of reeds, tangled vegetation, open water and tunnels were clearly separated from each other by NMDS ordination. CCA showed that habitat types had characteristic Cladocera species: Pleuroxus species were frequent in the tangled vegetation habitat, while Chydorus species were frequent in the open water. Remarkably, in reeds, Bosmina species were frequent, although these species are usually common in open water. Specimens of the Alona genus were found everywhere. Our findings suggest that the remains of Cladocera species may be useful indicators to assess and monitor the structure of freshwater lakes.

scholarly journals Investigation on Suitable Spat Collectiors and Culture Sites for Edible Oyster in the Coast of Bay of Bengal, Bangladesh

2021 ◽  
Vol 49 (2) ◽  
pp. 257-265
Author(s):  
Jakia Hasan ◽  
Md Mozzammel Hoque ◽  
Ahmed Fazley Rabbi ◽  
Shafiqur Rahman ◽  
Md Zulfikar Ali
Keyword(s):  
Bay Of Bengal ◽  
Suspended Solids ◽  
Total Suspended Solids ◽  
Oyster Shell ◽  
Total Dissolved Solids ◽  
Dissolved Solids ◽  
Oyster Culture ◽  
Significant Difference ◽  
Edible Oyster ◽  
Suitable Location

Potential spat collectors and suitable culture sites were investigated for the development of edible oyster culture from June to December 2019 at three study sites (Moheshkhali, the Jeti of Nuniarchora, and Sonadia) of Cox’s Bazar coast of Bangladesh. Four types of collectors such as oyster shell, earthen pot, kortal (windowpane oyster shell) and tiles were investigated. On site sampling of water quality parameters and number of spats on each collector were done at 15-days interval following standard methods. Results indicated insignificant difference (P > 0.05) in temperature, salinity, dissolved oxygen and pH, while significant difference (P < 0.05) in total dissolved solids, total suspended solids and Chl-a content of the water among the study locations. However, these parameters were in suitable range for growth and spawning of oyster. Results also indicated spat recruitment was significantly influenced by the types of collectors and study locations with significantly (P < 0.05) higher spat were recruited in Tiles. Tiles were also found to facilitate with an advantage of recycling of this collector. The location in interaction with polluting materials such as total dissolved solids and total suspended solids had a significant effect on spat recruitment rate and therefore, Sonadia was the most suitable location for spat recruitment. This study site can also be used as a suitable location for the development of oyster culture in the cost of Bay of Bengal, Bangladesh based on its environmental characteristics. Bangladesh J. Zool. 49 (2): 257-265, 2021

Comparative studies on nutrients need and uptake in Khaya senegalensis seedlings

2020 ◽  
Vol 16 (2) ◽  
pp. 1-12
Author(s):  
O.A. Iroko ◽  
A.O. Bobadoye ◽  
B.O. Bobadoye
Keyword(s):  
Comparative Studies ◽  
Water Hyacinth ◽  
Poultry Manure ◽  
Organic Manure ◽  
Cow Dung ◽  
Good Growth ◽  
Leaf Production ◽  
Significant Difference ◽  
Khaya Senegalensis ◽  
Collar Diameter

This study examine comparative studies on nutrients needs and uptake in K. senegalensis seedlings to evaluate effect of organic manure (Cow dung; 20g, 10g; Poultry manure: 20g, 10g; Water hyacinth 20g, 10g and control). The variables measured were plant height, collar diameter and leaf numbers. The experiment was laid out in a Completely Randomized Design (CRD), the data collected were subjected to Analysis of Variance (ANOVA) and Means separation using Least Significant Difference (LSD). The results showed that seedlings grown with cow dung of 20g produced the highest mean height (12.45cm), collar diameter (5.68mm) and leaf production (7). The best performance was observed in seedlings grown with cow dung at the rate of 20g. 20g of cow dung mixed with 2kg of forest top soil can therefore be used to raise K. senegalensis seedlings for good growth in the Nursery. Keywords: Nutrients, Khaya senegalensis, organic manure, nursery , water hyacinth

scholarly journals Phytoremediation of landfill leachate using Ipomoea aquatica and Pistia stratiotes

2021 ◽  
Vol 42 (3(SI)) ◽  
pp. 775-781
Author(s):  
M.M. Hanafiah ◽  
◽  
N.I.H.A. Aziz ◽  
A.A. Halim ◽  
L.S. Shamdin ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Chemical Oxygen Demand ◽  
Landfill Leachate ◽  
Suspended Solids ◽  
Oxygen Demand ◽  
Total Suspended Solids ◽  
Pistia Stratiotes ◽  
Ipomoea Aquatica ◽  
Physico Chemical ◽  
Significant Difference

Aim: In this study, Ipomoea aquatica and Pistia stratiotes were used to remove total suspended solids, chemical oxygen demand and ammoniacal nitrogen (NH3-N) from the landfill leachate collected at Ampar Tenang Closed Landfill (ATCL) site in Dengkil, Selangor, Malaysia. Methodology: The physico-chemical characteristics of landfill leachate (pH, temperature, NH3-N, dissolved oxygen, biochemical oxygen demand, chemical oxygen demand, total dissolved solids, total suspended solids, salinity, electrical conductivity and nitrite as well as selected heavy metals were determined before phytoremediation treatment. Results: The physico-chemical properties of leachate samples were found to be lower as compared to the standards set by the government, except for COD (>100 mg l-1). Heavy metals content, Na, Mg and Fe was high in leachate. It was found that the concentrations of NH3-N, COD and TSS in leachate decreased by 57.64%, 26.85% and 62.05% after treatment with Ipomea aquatica, respectively. Whereas, 61%, 32% and 74.7% removal rate was observed for NH3-N, COD and TSS, post-treatment by Pistia stratiotes. One-way ANOVA analysis for Ipomoea aquatica revealed insignificant difference (p>0.05) but for Pistia stratiotes there was a significant difference (p<0.05) in the reduction of TSS, COD and NH3-N concentrations. Interpretation: Based on the findings, Pistia stratiotes was found more effective than Ipomea aquatica for reducing TSS, COD and NH3-N concentrations from landfill leachate.

scholarly journals SOME OCEANOGRAPHIC FEATURES OF PELABUHANRATU BAY, WEST JAVA, INDONESIA

2019 ◽  
Vol 4 (1) ◽  
pp. 26-42
Author(s):  
Helmy Akbar ◽  
Andre Wizemann ◽  
Ayu Ervinia ◽  
Haidir Ilyas ◽  
Hendra Pangkey ◽  
...  
Keyword(s):  
Suspended Solids ◽  
Deep Layer ◽  
Total Suspended Solids ◽  
High Concentration ◽  
West Java ◽  
Wave Refraction ◽  
Depth Measurement ◽  
Phosphate Silicate ◽  
The Indian Ocean ◽  
Physical And Chemical

Pelabuhanratu Bay plays a big role for the flow of nutrients from the land to the sea of Sothern-Java. This study was conducted in Pelabuhanratu Bay, Sukabumi, West Java, in March 2012. The aim of this study is to measure the oceanographic parameters (physical and chemical) of Pelabuhanratu Bay i.e. tides, waves, current, temperature, salinity, depth, density, dissolved oxygen (DO), total suspended solids (TSS), turbidity, pH and nutrients. The bay directly faces the Indian Ocean, during the surveyed we found mean angle of wave refraction was about ~4.3° ± 1.5°, with left side wind direction. Overall the current direction has an irregular trend. The tidal cycle of the bay is diurnal, with the temperature decrease into the deep layer. Only the surface exhibits a slightly lower salinity compared to the rest of the water column. Some parameters (i.e. TSS, DO) found in high concentration but declining following the depth. Other chemical concentrations (e.g. ortho-phosphate, silicate) also showed diminished after 10-15 depth measurement.

scholarly journals Treatment of shrimp effluent by sedimentation and oyster filtration using Crassostrea gigas and C. rhizophorae

2009 ◽  
Vol 52 (3) ◽  
pp. 775-783 ◽  
Author(s):  
Roberto Ramos ◽  
Luis Vinatea ◽  
Walter Seiffert ◽  
Elpídio Beltrame ◽  
Júlia Santos Silva ◽  
...  
Keyword(s):  
Dissolved Oxygen ◽  
Chlorophyll A ◽  
Crassostrea Gigas ◽  
Suspended Solids ◽  
Total Suspended Solids ◽  
Control Treatment ◽  
Total Volatile ◽  
Shrimp Culture ◽  
Volatile Solids ◽  
Significant Difference

Efficiency in removing particulate matter from Litopenaeus vannamei shrimp culture effluent was assessed in laboratory scale employing sedimentation and oysters Crassostrea gigas and C. rhizophorae filtration processes. Cylindroconical tanks (100 L) were used in duplicate for sedimentation and 50-L in triplicate for oyster filtration. Fifteen oysters of each species weighing 76-80 g were stocked in each of the filtration treatment experimental units (biomass of 1065 - 1174 g oyster per unit). The control treatment was a tank similar to those used in the filtration treatment but with empty oyster shells. Hydraulic retention time of the effluent was of 6 hours in each treatment. First, effluent went through sedimentation, and then the supernatant went through the filtration tanks. Temperature, pH, dissolved oxygen, salinity, turbidity, total suspended solids, total volatile solids, chlorophyll a and BOD5 were evaluated. During sedimentation and filtration, temperature, pH, salinity and dissolved oxygen concentration remained stable. Sedimentation removed 18, 5.6, 27.5, 45.40 and 23.2% of turbidity, total suspended solids, total volatile solids, chlorophyll a and BOD5, respectively. Chlorophyll a and BOD5 after sedimentation presented significant difference (P<0.05) from the farm crude effluent. For the filtration treatment, C. rhizophorae was more efficient removing 62.1, 70.6, 36.1, 100 and 17.2% of turbidity, total suspended solids, total volatile solids, chlorophyll a and BOD5, respectively, whereas C. gigas removed 56.3, 41.2, 27.8, 51.4 and 8.0% of the same parameters. Statistically comparing C. rhizophorae and C. gigas performances, there were differences (P<0.05) in removing total suspended solids, total volatile solids and chlorophyll a.

scholarly journals The Limnological Effects of River Lesser-Zab on Tigris River, Iraq

2007 ◽  
Vol 4 (3) ◽  
pp. 452-457
Author(s):  
Baghdad Science Journal
Keyword(s):  
Dissolved Oxygen ◽  
Water Samples ◽  
Suspended Solids ◽  
Total Suspended Solids ◽  
Spring Season ◽  
Chemical Parameters ◽  
High Discharge ◽  
Tigris River ◽  
Discharge Water ◽  
Physico Chemical

The present study included the physico-chemical parameters of Lesser-Zab river and its effects on Tigris river. Monthly water samples were taken from the two rivers during January to October 1999.There were no signifcant difference in water temperatures. Both rivers were fresh to oligohalin, alkaline and very hard. Close values were determined in total suspended solids in both rivers with little increasing during rainfall period and high discharge. Water was well areated and over saturation was recorded in several occasions. Dissolved oxygen values of Tigris river were influenced by Lesser-Zab. Cations were more dominant than anions in both rivers. In Lesser-Zab, the anions were increased during spring season and declined in summer which their values influenced in Tigris river. The concentration of plant nutrients (NO2,NO3,PO4 and SiO2) were fluctuated during the study period in Lesser-Zab and their effects were cleared on Tigris river.N:P ratio values were indicated the deficiency of nitrogen in both rivers.

Monsoon and Post-monsoon Evaluation of Water Quality of Phewa Lake in Pokhara, Midwestern, Nepal

2012 ◽  
Vol 3 (1) ◽  
Author(s):  
Kriti Acharya ◽  
Krishna Raj Tiwari ◽  
Subodh Sharma ◽  
Chiranjibi Prasad Upadhyaya ◽  
Yajna Prasad Timilsina ◽  
...  
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Electric Conductivity ◽  
Suspended Solids ◽  
Surface Water Quality ◽  
Total Suspended Solids ◽  
Point Sources ◽  
Middle Point ◽  
Post Monsoon ◽  
Significant Difference

The study explored the lake as mesotrophic. Inflow streams to Phewa lake, lake itself and its outflow stream were sampled in monsoon and post-monsoon. Nine different sampling sites were chosen and physico-chemical parameters like pH, temperature, dissolved oxygen, electric conductivity were recorded at the spot and rest of the parameters (total nitrogen, total phosphorus and total suspended solids) were analyzed in the laboratory. The observed concentrations were compared with Standard of Surface water quality for sustaining aquatic life. There was no significant difference in DO level, pH, TSS whereas EC, TN and water temperature showed significant difference with respective seasons. The electric conductivity of Phirke khola (inflow stream to lake) was found high that means it was putting nutrient load to the lake. The total suspended solids were much higher (176 mg/l) at Harpan khola (inflow stream) in monsoon and maximum at the middle point of lake (11 mg/l) in post-monsoon. This showed that the TSS carried by Harpan khola are maximally deposited at middle point of lake and shortening the life of the lake. The study finally recommends controlling the discharge of pollution load and periodic surface water quality monitoring and vertical (depth wise) monitoring is necessary. Keywords - Aquatic Ecology, Wetlands, Point sources, mesotrophic, quality indicators, suspended solids, nutrient input, Phewa Lake, Pokhara, Nepal

scholarly journals Factors Affecting Macrobenthic Invertebrates Distribution in Badagry Creek, South Western Nigeria

2018 ◽  
pp. 1-11
Author(s):  
O. A. Olapoju ◽  
C. A. Edokpayi
Keyword(s):  
Dissolved Oxygen ◽  
Species Abundance ◽  
Individual Species ◽  
Chemical Parameters ◽  
Factors Affecting ◽  
Physico Chemical ◽  
Significant Difference ◽  
The Individual ◽  
Sand And Gravel ◽  
Physical And Chemical

The aim of the paper is to identify macroinvertebrates distribution in response to induced stressors and physico-chemical parameters of water and sediment. The species composition of macrobenthic invertebrates as well as the physico-chemical characteristics of Badagry creek was investigated monthly. Six sampling stations selected based on different levels of human activities along the creeks stretch and samples were collected monthly from September 2006 to February 2007. The fluctuations of some of the physical and chemical parameters such as pH, dissolved oxygen, BOD and total organic carbon appeared to have been influenced by activities along the study stretch. Analysis of variance (ANOVA)  for all parameters showed no significant differences (P > 0.05) in the parameters but  Post hoc tests analysis using Duncan showed that there was a significant difference (P = 0.05) in the mean total of some of the parameters. pH, clay, sand and gravel were significantly correlated with other parameters while canonical correspondence analysis (CCA) model showed that the environmental variables correlated with significant part of the variations in the individual species abundance and it revealed that dominant species were found to be significantly correlated with dissolved oxygen, total dissolved solids, sand and pH.

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