Acute toxicity of sodium nitrate, potassium nitrate, and potassium chloride and their effects on the hemolymph composition and gill structure of early juvenile blue swimmer crabs (Portunus pelagicus Linnaeus, 1758) (decapoda, brachyura, portunidae)

@article{Romano2007AcuteTO,
  title={Acute toxicity of sodium nitrate, potassium nitrate, and potassium chloride and their effects on the hemolymph composition and gill structure of early juvenile blue swimmer crabs (Portunus pelagicus Linnaeus, 1758) (decapoda, brachyura, portunidae)},
  author={Nicholas Romano and Chaoshu Zeng},
  journal={Environmental Toxicology and Chemistry},
  year={2007},
  volume={26}
}
  • N. RomanoC. Zeng
  • Published 1 September 2007
  • Environmental Science, Biology
  • Environmental Toxicology and Chemistry
Various nutrients, including K+ and NO−3, are increasingly being discharged into aquatic systems via anthropogenic sources, which may impact marine organisms. The present study was conducted on blue swimmer crab (Portunus pelagicus) early juveniles to determine the acute toxicity of NaNO3, KNO3, and KCl; if a toxicity interaction exists between K+ and NO−3; the hemolymph Na+, K+, and Ca2+ changes; and the gill histopathological alterations following exposure to elevated NaNO3, KNO3, and KCl… 

Changes to the histological gill structure and haemolymph composition of early blue swimmer crab Portunus pelagicus juveniles during elevated ammonia-N exposure and the post-exposure recovery

Investigation of haemolymph osmolality, Na1, K1, Ca21, pH, ammonia-N, total haemocyte counts (THC) and gill histopathology of Portunus pelagicus juveniles demonstrates that despite severe gill damage within 6- and 1h of 0.706 and 2.798mmol L1 ammonia- N exposure, the gills can completely recover within 24 and 48 h post exposure.

Toxic Effects of Ammonia, Nitrite, and Nitrate to Decapod Crustaceans: A Review on Factors Influencing their Toxicity, Physiological Consequences, and Coping Mechanisms

This review focuses on decapod crustaceans due to their high commercial value and likelihood of encountering these pollutants in their benthic or near-benthic habitat, and indicates that theoretical “safe” values, traditionally used for predicting toxicity thresholds, substantially underestimate the impact of nitrogenous waste on the growth and physiological condition of crustacean.

Short‐term toxicity of ammonia, nitrite, and nitrate to early life stages of the rare minnow (Gobiocypris rarus)

It is demonstrated that nitrogenous pollutants pose a threat to wild populations of rare minnows and provide useful information for establishing water quality criteria for this laboratory fish.

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