Lethal concentration (CL50) of un-ionized ammonia for pejerrey larvae in acute exposure
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منابع مشابه
Un-ionized Ammonia Exposure in Nile Tilapia: Toxicity, Stress Response, and Susceptibility to Streptococcus agalactiae
—A series of experiments were conducted to determine the toxicity, behavior, blood glucose stress response, and disease susceptibility in Nile tilapia Oreochromis niloticus following un-ionized ammonia (UIA) exposure. The acute toxicity of un-ionized ammonia to Nile tilapia was measured in a 96-h static test. The median lethal concentration (LC50) was 1.46 mg/L UIA at 24 and 48 h postexposure, ...
متن کاملLethal Concentration of Ammonia and Tolerable Range of pH in zebrafish (Danio rerio)
Increasing in water ammonia is one of the major problems in aquaculture. Nitrogen-containing materials are producing in different ways, including oxidation of nitrogen-containing organic matters such as proteins, manure decomposition and ammonia excretion by fish. The increase in these compounds in water recirculation systems and aquaria has always been considered as a stress-causing factor. On...
متن کاملThe Acute Effects of Un-ionized Ammonia on Zebrafish (Danio rerio)
Zebrafish is a commonly used species in toxicology studies investigations such as molecular genetics, histopathology and developmental biology. A toxicity test was conducted to investigate the effects of toxic ammonia (NH3) in relation to time and concentration by establishing a measurable endpoints for chemical exposure and monitoring the biological responses on zebrafish exposed to high level...
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Due to the un-sufficient information about susceptibility of Caspian roach (Rutilus caspicus) to environmental ammonia, in the present study mortality rate, clinical and histological signs of this fish in acute exposure situation to un-:union:ized ammonia have been studied. To this 180 fingerling with average weight of 6.5 ± 1 were divided in 18 aquaria (10 fish per aquarium) and acclimatized f...
متن کاملSensitivity of juvenile freshwater mussels (Lampsilis fasciola, Villosa iris) to total and un-ionized ammonia.
This study evaluated the sensitivity of juveniles of two freshwater unionid mussel species (Villosa iris [Lea] and Lampsilis fasciola [Rafinesquel) to un-ionized and total ammonia. Five concentrations of ammonium chloride were tested using 96-h static-renewal toxicity tests at 12 and 20 degrees C. Based on their respective mean 96-h lethal concentration to 50% (LC50s), V. iris (0.11 mg/ L NH3-N...
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ژورنال
عنوان ژورنال: Scientia Agricola
سال: 2006
ISSN: 0103-9016
DOI: 10.1590/s0103-90162006000200011