• Great Britain non-native species risk assessments
  http://www.nonnativespecies.org/index.cfm?sectionid=51
• Inland Fisheries Ireland
  http://www.fisheriesireland.ie/
• National Biodiversity Data Centre
  http://www.biodiversityireland.ie/

Relevant legislation

• S.I. No. 477/2011 – European Communities (Birds and Natural Habitats) Regulations 2011.
  http://www.irishstatutebook.ie/2011/en/si/0477.html