The technical feasibility of pond liners for rearing Pacific white shrimp (Penaeus vannamei) in terms of survival, growth, water exchange rate and effluent water quality

1992 ◽  
Vol 11 (3) ◽  
pp. 183-201 ◽  
Author(s):  
G.D. Pruder ◽  
E.O. Duerr ◽  
W.A. Walsh ◽  
A.L. Lawrence ◽  
W.A. Bray
Keyword(s):  
Water Quality ◽  
Exchange Rate ◽  
Water Exchange ◽  
Pacific White Shrimp ◽  
White Shrimp ◽  
Penaeus Vannamei ◽  
Effluent Water ◽  
Water Exchange Rate ◽  
Technical Feasibility

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.

A modeling study of the impact of increasing water exchange rate on water quality of a semi-enclosed bay

2019 ◽  
Vol 136 ◽  
pp. 177-184 ◽  
Author(s):  
Mohammad Hassan Ranjbar ◽  
Majid Jandaghi Alaee ◽  
Mostafa Nazarali
Keyword(s):  
Water Quality ◽  
Exchange Rate ◽  
Water Exchange ◽  
Water Exchange Rate ◽  
Enclosed Bay ◽  
The Impact ◽  
Modeling Study

scholarly journals Identification of biofloc microscopic composition as the natural bioremediation in zero water exchange of Pacific white shrimp, Penaeus vannamei, culture in closed hatchery system

2016 ◽  
Vol 7 (5) ◽  
pp. 2437-2446 ◽  
Author(s):  
Hidayah Manan ◽  
Julia Hwei Zhong Moh ◽  
Nor Azman Kasan ◽  
Suhaimi Suratman ◽  
Mhd Ikhwanuddin
Keyword(s):  
Water Exchange ◽  
Pacific White Shrimp ◽  
White Shrimp ◽  
Penaeus Vannamei

scholarly journals Effects of different salinity levels on water quality, growth performance and body composition of Pacific white shrimp (Litopenaeus vannamei Boone, 1931) cultured in a zero water exchange heterotrophic system

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Mohammad Hossein Khanjani ◽  
Moslem Sharifinia ◽  
Saeed Hajirezaee
Keyword(s):  
Water Quality ◽  
Growth Rate ◽  
Body Composition ◽  
Water Exchange ◽  
High Salinity ◽  
Pacific White Shrimp ◽  
Salinity Level ◽  
White Shrimp ◽  
Different Levels ◽  
High Salinity Level

AbstractThe present study was aimed to evaluate the effects of different levels of salinity on water quality, growth performance, survival rate and body composition of Pacific white shrimp in a heterotrophic/biofloc technology (BFT). Shrimp post-larvae with an average weight of 74.46 mg were cultured in 300 L fiberglass tanks containing 130 L water at a density of 1 post-larva/L. Three treatments including different levels of salinity of 8, 21 and 32 ppt with three replicates were considered. The highest levels of body weight, growth rate, specific growth rate, increase in body length and survival rate were observed at high salinity level (32 ppt). The highest feed conversion ratio (FCR) and the lowest level of feed efficiency were obtained in shrimps cultured at lowest salinity level (P<0.05). Biochemical analysis of shrimp body composition showed an increase in protein, lipid and ash content as the salinity elevated (P<0.05). The zero-water exchange system used in this study had no significant effects on water quality parameters. The results of the present study concluded that high salinity level (32 ppt) improves the growth and survival of the biofloc supplemented Pacific white shrimp in a BFT system.

Simulation of the Changes of Flow Fields by Ecological Islands in Wohushan Reservoir

2013 ◽  
Vol 405-408 ◽  
pp. 2190-2193
Author(s):  
Ming Hui Niu ◽  
Zheng He Xu ◽  
Ke Kong
Keyword(s):  
Water Quality ◽  
Exchange Rate ◽  
Recovery Time ◽  
Water Exchange ◽  
Vertical Direction ◽  
Quality Model ◽  
Water Exchange Rate ◽  
Before And After ◽  
Speed Up ◽  
Field Velocity

Based on the MIKE21 software, the water quality model to simulate flow field, velocity, and proliferation of pollutants before and after ecological islands is established in Wohushan Reservoir. It consists of mass equations and momentum equations. The results indicate ecological islands can ease the phenomenon of reservoir circulation and speed up the water exchange rate in the vertical direction that shortens the recovery time of water. The study provides a strong guarantee for water resources regulation, management and protection of Wohushan Reservoir.

Water quality control in a closed re-circulating system of Pacific white shrimp (Penaeus vannamei) postlarvae co-cultured with immobilized Spirulina mat

2013 ◽  
Vol 22 (3) ◽  
pp. 1181-1195 ◽  
Author(s):  
Siriphorn Sombatjinda ◽  
Chalermraj Wantawin ◽  
Somkiet Techkarnjanaruk ◽  
Boonsirm Withyachumnarnkul ◽  
Marasri Ruengjitchatchawalya
Keyword(s):  
Water Quality ◽  
Quality Control ◽  
Pacific White Shrimp ◽  
White Shrimp ◽  
Penaeus Vannamei ◽  
Water Quality Control
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