A new generation of biocides for control of crustacea in fish farms

Peter K J Robertson*, Kenneth D. Black, Morgan Adams, Kate Willis, Fraser Buchan, Heather Orr, Linda Lawton, Cathy McCullagh

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Farming of salmon has become a significant industry in many countries over the past two decades. A major challenge facing this sector is infestation of the salmon by sea lice. The main way of treating salmon for such infestations is the use of medicines such as organophosphates, pyrethrins, hydrogen peroxide or benzoylphenyl ureas. The use of these medicines in fish farms is, however, highly regulated due to concerns about contamination of the wider marine environment. In this paper we report the use of photochemically active biocides for the treatment of a marine copepod, which is a model of parasitic sea lice. Photochemical activation and subsequent photodegradation of PDAs may represent a controllable and environmentally benign option for control of these parasites or other pest organisms in aquaculture. 

Original languageEnglish
Pages (from-to)58-63
Number of pages6
JournalJournal of Photochemistry and Photobiology B: Biology
Issue number1
Early online date25 Dec 2008
Publication statusPublished - 02 Apr 2009


  • Copepods
  • Methylene blue
  • Nuclear fast red
  • Photosensitiser
  • Sea lice
  • Toxicity

ASJC Scopus subject areas

  • Radiation
  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology
  • Biophysics


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