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Dolphin dissuasive device mitigation in inshore fisheries


RFx ID : 21427796
Tender Name : Dolphin dissuasive device mitigation in inshore fisheries
Reference # : MIT2019-01
Open Date : Friday, 23 August 2019 12:00 PM (Pacific/Auckland UTC+12:00)
Close Date : Monday, 30 September 2019 12:00 PM (Pacific/Auckland UTC+13:00)
Tender Type : Request for Proposals (RFP)
Tender Coverage : Sole Agency  [?]
Categories :
  • 70000000 - Farming and Fishing and Forestry and Wildlife Contracting Services
  • 77000000 - Environmental Services
  • 81000000 - Engineering and Research and Technology Based Services
  • New Zealand
Exemption Reason : None
Required Pre-qualifications : None
Contact : DOC Procurement Team
Please direct all communication through GETS
Alternate Physical Delivery Address  : N/A
Alternate Physical Fax Number  : N/A

Dolphin Dissuasive Devices (DDD) are thought to limit interactions between dolphins and fishing nets by emitting high frequency ultrasound signals. Signals can be modulated (in length and width) to limit the potential of dolphins adapting to the signal. DDDs are currently used in the deepwater jack mackerel fishery (two units deployed either on bridles facing backwards over the net or placed on the headline getting coverage immediately in front of the trawl mouth). Currently there is anecdotal evidence that shows that these devices may be effective but little quantitative research to support this.

This desk-based study would involve an international review of Dolphin Dissuasive Devices with a focus on research on species and fisheries relevant to New Zealand. It would also involve developing a proposed methodology for field trials and assessment of a dolphin deterrent device in an inshore setting plus recommendations on location(s) and technology suited to the New Zealand inshore environment and dolphin species.