Carbon sources affect water quality and haemato‐biochemical responses ofLabeo rohitain zero‐water exchange biofloc system

2019 ◽  
Vol 50 (10) ◽  
pp. 2879-2887 ◽  
Author(s):  
Irshad Ahmad ◽  
Tasok Leya ◽  
Neelam Saharan ◽  
Babitha Rani Asanaru Majeedkutty ◽  
Gaurav Rathore ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Exchange ◽  
Carbon Sources ◽  
Biochemical Responses

Effect of stocking density on soil, water quality and nitrogen budget inPenaeus monodon(Fabricius, 1798) culture under zero water exchange system

2012 ◽  
Vol 44 (10) ◽  
pp. 1578-1588 ◽  
Author(s):  
Ramamoorthy Saraswathy ◽  
Moturi Muralidhar ◽  
Muniyandi Kailasam ◽  
Pitchaiyappan Ravichandran ◽  
Baijnatha Prasad Gupta ◽  
...  
Keyword(s):  
Water Quality ◽  
Soil Water ◽  
Water Exchange ◽  
Stocking Density ◽  
Nitrogen Budget ◽  
Exchange System

scholarly journals Study on Water Exchange and Water Quality Simulation of Macao Airport Expansion Project

2021 ◽  
Vol 261 ◽  
pp. 03019
Author(s):  
Huang Pengfei ◽  
Liu Pei ◽  
Xu Wei
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Exchange Rate ◽  
Water Exchange ◽  
Exchange Capacity ◽  
Two Dimensional ◽  
Water Exchange Rate ◽  
Water Quality Simulation ◽  
Significant Difference ◽  
Better Than

In this paper, we analyzed the current situation of water pollution sources near Macao airport, established a two-dimensional water exchange and water quality mathematical model near the project, and compared and simulated the reclamation schemes of Macao airport. According to the results of water exchange and COD calculation of water quality, the 80 m channel scheme was remarkably better than the 40 m one in terms of water exchange capacity and the possibility of achieving the water quality target. However, with the increase of channel width, the variation of water exchange rate and half exchange period would slow down. There was no significant difference in water exchange rate, water exchange period and water quality distribution between 80m channel and 120 m channel. The final scheme was to adopt the 80 m channel.

scholarly journals The effects of differences in water exchange on the productivity of glass eel stage in Anguilla bicolor bicolor culture

2021 ◽  
Vol 322 ◽  
pp. 02006
Author(s):  
Eri Setiadi ◽  
Adang Saputra ◽  
Imam Taufik
Keyword(s):  
Water Quality ◽  
Blood Glucose ◽  
Survival Rate ◽  
Quality Management ◽  
Water Exchange ◽  
Water Quality Management ◽  
Economic Value ◽  
Culture Technique ◽  
Glass Eel ◽  
Survival And Growth

Eel, Anguilla bicolor bicolor has an economic value for export commodity. Eel farming has been developed both of home to industries scales. However, the main problem during the glass eel culture is the low survival rate, characterized by high mortality. This condition is related to the culture technique that has not been established yet, especially water quality management. The research aims to determine the best water exchange during the culture of the glass eel on the survival, growth, and blood glucose. The different percentages of water exchange as a treatment were followed A) control (without water exchange); B) 20% of water exchange; C) 40% of water exchange; and D) 60% of water exchange. The water exchange has affected the survival, growth, and blood glucose (P<0.05). The ammonia, nitrite, and nitrate values during the culture period showed that the control was higher compared to the others. The water exchange of 40% is suitable for glass eel stage culture to obtain the best survival and growth.

scholarly journals APPLICATION OF BIOFLOC TECHNOLOGY IN INTENSIVE FARMING AFFECTED PRODUCTION AND BLOOD PERFORMANCES OF THE CATFISH [Clarias gariepinus (Burchell, 1822)]

2016 ◽  
Vol 78 (4-2) ◽  
Author(s):  
Sri Hastuti ◽  
Subandiyono Subandiyono
Keyword(s):  
Water Quality ◽  
Growth Rate ◽  
Water Exchange ◽  
Heterotrophic Bacteria ◽  
Clarias Gariepinus ◽  
Stocking Density ◽  
Relative Growth ◽  
Intensive Farming ◽  
Biofloc Technology ◽  
Control Water

The biofloc technology can control water quality under negligible water exchange. The aim of this study was to evaluate the  effects of stocking density on production and blood performance of catfish (Clarias gariepinus [Burchell, 1822]). The catfish were reared in biofloc system (heterotrophic bacteria and addition of sugar for a period of 10 wk and used three levels of density i.e. (500, 1 000, and 1 500) fish per m2. The production increased with the increasing of stocking density, relative growth rate decreased with the increasing of that. The stocking density of 1 500 fish per m2 on the biofloc technology can support maximum catfish production, health and proper water quality.

Effect of different biofloc levels on microbial activity, water quality and performance of Litopenaeus vannamei in a tank system operated with no water exchange

2013 ◽  
Vol 56 ◽  
pp. 59-70 ◽  
Author(s):  
Rodrigo Schveitzer ◽  
Rafael Arantes ◽  
Patrícia Fóes S. Costódio ◽  
Carlos M. do Espírito Santo ◽  
Luis Vinatea Arana ◽  
...  
Keyword(s):  
Water Quality ◽  
Microbial Activity ◽  
Litopenaeus Vannamei ◽  
Water Exchange ◽  
Tank System ◽  
And Performance
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