Find out more about the people behind Cawthron Institute.

Julien Vignier

Aquaculture Scientist – Shellfish Aquaculture


  • PhD (Marine Biology), Université de Bretagne Occidentale (Brest), France, 2015
  • DESTA (Aquaculture engineering), CNAM / Université de Montpellier II, France, 2005

Role at Cawthron

Julien is a shellfish biologist and bivalve hatchery specialist. Julien has joined the Cawthron Aquaculture Group and more specifically the Cultured Shellfish Programme as a research scientist and is delighted to be able to apply his Research & Development expertise in shellfish aquaculture to the development of New-Zealand aquaculture industry.

Julien is currently involved in R&D projects, supporting directly the industry, looking at optimization of hatchery production processes of oyster spat; alternative methods for triploidy induction (4N method); geoduck spat production; and, selective breeding of flat oysters for Bonamia resistance.

Technical skills, experience and interests

  • Shellfish hatchery production focusing on reproduction and larval development and optimization of hatchery processes 
  • Development of rearing protocols and innovative systems for “new” species of interest for aquaculture
  • Sustainable aquaculture (e.g. IMTA systems)
  • Mollusc ecotoxicology (oil/PAHs, pesticides, biotoxins & HAB) 
  • Shellfish physiology

View Julien's ResearchGate profile

Publication links

+64 3 548 2319 ext 733