Acute and Subchronic Effects of Branched 4-Nonylphenol Isomers on Mysid Crustacean, <i>Americamysis Bahia</i>

• Uchida Masaya

  Department of Creative Engineering, National Institute of Technology, Ariake College

• Hirano Masashi

  Department of Biological and Chemical Systems Engineering, National Institute of Technology, Kumamoto College

• Ishibashi Hiroshi

  Graduate School of Agriculture, Ehime University

• Tominaga Nobuaki

  Department of Creative Engineering, National Institute of Technology, Ariake College

• Arizono Koji

  Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto

Bibliographic Information

Other Title

• 海産甲殻類アミに対する4-ノニルフェノール異性体の急性・亜慢性毒性影響

Abstract

Nonylphenol (NP) is widely used in the manufacture of nonyphenol ethoxylates, and highly toxic to aquatic organisms. However, limited information is available on the toxic effects of NP isomers to crustaceans. In this study, we investigated the acute and subchronic effects of NP isomers on the mysid, Americamysis bahia (Crustacea: Mysidacea). In the acute toxicity test, the median lethal concentration (96 h-LC50) values of 4-NP, NP-C’, NP-I, NP-N, NP-O and NP-Q in mysids were estimated to be 78, 131, 91, 72, 144 and 89 μg/L, respectively. In order to further evaluate the subchronic effects of NP isomers on survival, growth (body and carapace length and body weight), sexual development and molting, 7-day-old mysids were exposed to NP-N and NP-Q (0.5, 5 and 50 μg/L) for 14 days. The adverse effects of NP-N and NP-Q on the body and/or carapace length were the most prominent, and the lowest observed effect concentrations (LOECs) of these NPs were 50 and < 0.5 μg/L, respectively. Furthermore, the total number of molting was significantly decreased in mysids exposed to NP-N (the LOEC value: < 0.5 μg/L) and NP-Q (5 μg/L) for 14 days. These results suggest that subchronic exposure to environmentally relevant concentrations of NP isomers affect growth and molting of the mysids. In addition, it was suggested that the toxicity may be different for each isomer.

Journal

• Japanese Journal of Environmental Toxicology

  Japanese Journal of Environmental Toxicology 20 (2), 59-68, 2018

  The Japanese Society of Environmental Toxicology

Keywords

• Acute toxicity
• <i>Americamysis bahia</i>
• Growth and maturation test
• Nonylphenol isomer

Details

• CRID: 1390285300151858176
• NII Article ID: 130007833419
• DOI: 10.11403/jset.20.59
• ISSN: 18825958
• ISSN: 13440667
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
• Abstract License Flag: Disallowed