John C. Holdsworth

Owner of Blue Water Marine Research

John Holdsworth is the owner of Blue Water Marine Research, a company that provides quality marine research, technical and advisory services to government agencies and a range of NGOs.  Holdsworth is contracted on projects to manage the New Zealand Gamefish Tagging Program, performance of the sport fishery for gamefish in New Zealand, providing estimates on the non-commercial harvest of southern bluefin tuna in New Zealand, estimates on release mortality for snapper (Pagrus auratus) from the recreational fishery, morphometrics and biological samples from the New Zealand striped marlin,

and assists fishing clubs to participate in the IGFA Great Marlin Race PSAT tagging program.