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      Short Communication: Effects of temperature and chemical formulation on the acute toxicity of pentachlorophenol to Simocephalus vetulus (Schoedler, 1858) (Crustacea: Cladocera)

      Willis, Kate J.; Ling, Nicholas; Chapman, M. Ann
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       www.royalsociety.org.nz
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      Willis, K.J., Ling, N. & Chapman, M.A. (1995). Short Communication: Effects of temperature and chemical formulation on the acute toxicity of pentachlorophenol to Simocephalus vetulus (Schoedler, 1858) (Crustacea: Cladocera). New Zealand Journal of Marine and Freshwater Research, 29(2), 289-293.
      Permanent Research Commons link: https://hdl.handle.net/10289/4699
      Abstract
      The influence of temperature on the acute toxicity of a technical formulation (86%) and pure formulation (99%) of pentachlorophenol (PCP) to less than 24-h-old Simocephalus vetulus neonates was determined with 48-h static toxicity tests. The technical grade PCP was significantly more toxic to S. vetulus than the pure PCP (P < 0.05). Sensitivity of S. vetulus to technical PCP also significantly increased with temperature (P < 0.05), but a significant temperature effect was not found with the pure PCP. The mean 48-h LC50 values for neonates exposed to technical PCP were 140 and 199 ug l⁻¹ at 22deg.C and 16deg.C, respectively, and for those exposed to pure PCP were 262 and 304 ug l⁻¹, respectively.
      Date
      1995
      Type
      Journal Article
      Rights
      This article has been published in the journal: New Zealand Journal of Marine and Freshwater Research. © 1995 The Royal Society of New Zealand. Used with permission.
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      • Science and Engineering Papers [3073]
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