Tag salinity

• Animal Health & Welfare

  April 16, 2018

  Comparing salinities in intensive, commercial-scale biofloc for Pacific white shrimp

  Study illustrates the range of salinity options for shrimp production in commercial-scale biofloc systems and found no significant differences in any shrimp production metric. 

• Environmental & Social Responsibility

  April 8, 2016

  The importance of water analysis in aquaculture

  Proper monitoring of water quality in aquaculture production systems is critical to enable appropriate and timely management decisions. It requires reliable equipment, trained technicians that follow instructions and apply quality control measures, proper reagents and calibrated equipment, and appropriately collected 

• Environmental & Social Responsibility

  July 1, 2015

  Water composition: Dissolved inorganic solids

  A few anions and cations, and un-dissociated silicic acid represent the largest fraction of dissolved inorganic solids in water. The total concentration of ions is called the salinity. The total dissolved-solids concentration usually is roughly equal to salinity in freshwater. 

• Environmental & Social Responsibility

  May 2, 2015

  TAN, other water quality factors affect nitrification rates in biofilters

  An important criterion when studying biofilters is the conversion rate of total ammonia nitrogen (TAN) to nitrate-nitrogen in production water. Although nitrification rates have been based on media surface areas, they do not always reflect the actual nitrification achieved. Volumetric 

• Environmental & Social Responsibility

  March 1, 2015

  Defining ranges for water quality variables presents complex, challenging process

  The creation and application of reference tables for acceptable concentration ranges of physical and chemical water quality variables for culture organisms would be challenging due to the differing tolerances found among the many farmed species. 

• Animal Health & Welfare

  November 1, 2014

  Low-salinity culture water controls Vibrios in shrimp postlarvae

  In a survey of Vibrio concentrations in white shrimp postlarvae at two inland farms, hatchery postlarvae were acclimated in water with salinity reduced from 30 and 5 ppt to 2 ppt at the farms. One farm stocked postlarvae in nursery 

• Animal Health & Welfare

  November 2, 2013

  Salinity tolerance of Gulf corvina, prospective aquaculture species

  After six weeks of experimental culture, comparable growth and survival were recorded in juvenile Gulf corvina raised at salinities of 5, 15, 25 or 35 ppt. Coupled with stable plasma osmolality values observed in fish at the varied salinities, these 

• Animal Health & Welfare

  November 1, 2013

  Ammonia toxicity degrades animal health, growth

  Ammonia nitrogen occurs in aquaculture systems as a waste product of protein metabolism by aquatic animals and degradation of organic matter, or in nitrogen fertilizers. Exposure can reduce growth and increase susceptibility to diseases in aquatic species. 

• Animal Health & Welfare

  March 1, 2013

  Larval rearing of sea bass in desert-saline Middle East

  European sea bass have been raised in the favorable climate of the Middle East since 2000. For effective larval rearing of sea bass, the authors recommend the use of temperature-controlled water with about 35 ppt salinity and good aeration in 

• Animal Health & Welfare

  November 1, 2011

  Improving salinity tolerance in tilapia

  Salinity tolerance in tilapia can be improved by optimizing acclimation protocols, adding salt to the diet or hybridization between fast-growing and salt-tolerant species.