New system design for the cultivation of extractive species at exposed sites - Part 1: System design, deployment and first response to high-energy environments

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

  • Kevin Heasman
  • Nicholas Scott
  • Malcolm Smeaton
  • Nils Goseberg
  • Arndt Hildebrandt
  • Peter Vitasovich
  • Andrew Elliot
  • Michael Mandeno
  • Bela H. Buck

Externe Organisationen

  • Technische Universität Braunschweig
  • Whakatohea Mussels (Opotiki) Limited
  • Kono NZ LP
  • Sanford Limited
  • Cawthron Institute
  • Alfred-Wegener-Institut (AWI) Helmholtz-Zentrum für Polar- und Meeresforschung
  • Hochschule Bremerhaven
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Aufsatznummer102603
FachzeitschriftApplied ocean research
Jahrgang110
Frühes Online-Datum21 März 2021
PublikationsstatusVeröffentlicht - Mai 2021

Abstract

The purpose of this publication is to perform a system analysis of new cultivation technology for exposed bivalve farming. The technical feasibility of the new construction, called Shellfish Tower, was assessed. The device has gone through several very different phases of development on its way to the deployment of the prototype. These included multiple iterations during the designing stage, wave tank testing, fabrication, loading and unloading on trucks and vessels, deployment at sea, installation and assembly on the single mooring line, and bring it to its final position in a submerged mode 5m-10 m below the water surface. The final structure has a hexagonal body, with a centrally orientated variable buoyancy unit with culture sub-units on each of the six corners. These sub-units can be used for the culture of oysters (Magallana gigas – formally Crassostrea gigas) as well as for the collection of mussel spat (Perna canaliculus). Other possible candidates could be seaweed, lobsters, sponges or tunicates. The operational depth of the whole system can be at any depth but was tested at between 5 and 10 m below the water surface positioned on the mooring line between the screw anchor and surface floats for the prototype tests. The system was deployed in March 2019 six nautical miles off the Bay of Plenty, North Island (New Zealand), in exposed waters near a commercial mussel farm and has been in test mode since then. The modelled structure indicates a design tolerance of significant wave height of over 7 m and currents of over 0.8 m/s. Initial results show that the new design has survived waves at 4.6 m significant height and current velocities of up to 0.7 m•s-1, while showing best growth conditions of the cultured oysters as well as for the spat settlement of juvenile greenshell™ mussels.

ASJC Scopus Sachgebiete

Zitieren

New system design for the cultivation of extractive species at exposed sites - Part 1: System design, deployment and first response to high-energy environments. / Heasman, Kevin; Scott, Nicholas; Smeaton, Malcolm et al.
in: Applied ocean research, Jahrgang 110, 102603, 05.2021.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Heasman, K., Scott, N., Smeaton, M., Goseberg, N., Hildebrandt, A., Vitasovich, P., Elliot, A., Mandeno, M., & Buck, B. H. (2021). New system design for the cultivation of extractive species at exposed sites - Part 1: System design, deployment and first response to high-energy environments. Applied ocean research, 110, Artikel 102603. https://doi.org/10.1016/j.apor.2021.102603
Heasman K, Scott N, Smeaton M, Goseberg N, Hildebrandt A, Vitasovich P et al. New system design for the cultivation of extractive species at exposed sites - Part 1: System design, deployment and first response to high-energy environments. Applied ocean research. 2021 Mai;110:102603. Epub 2021 Mär 21. doi: 10.1016/j.apor.2021.102603
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abstract = "The purpose of this publication is to perform a system analysis of new cultivation technology for exposed bivalve farming. The technical feasibility of the new construction, called Shellfish Tower, was assessed. The device has gone through several very different phases of development on its way to the deployment of the prototype. These included multiple iterations during the designing stage, wave tank testing, fabrication, loading and unloading on trucks and vessels, deployment at sea, installation and assembly on the single mooring line, and bring it to its final position in a submerged mode 5m-10 m below the water surface. The final structure has a hexagonal body, with a centrally orientated variable buoyancy unit with culture sub-units on each of the six corners. These sub-units can be used for the culture of oysters (Magallana gigas – formally Crassostrea gigas) as well as for the collection of mussel spat (Perna canaliculus). Other possible candidates could be seaweed, lobsters, sponges or tunicates. The operational depth of the whole system can be at any depth but was tested at between 5 and 10 m below the water surface positioned on the mooring line between the screw anchor and surface floats for the prototype tests. The system was deployed in March 2019 six nautical miles off the Bay of Plenty, North Island (New Zealand), in exposed waters near a commercial mussel farm and has been in test mode since then. The modelled structure indicates a design tolerance of significant wave height of over 7 m and currents of over 0.8 m/s. Initial results show that the new design has survived waves at 4.6 m significant height and current velocities of up to 0.7 m•s-1, while showing best growth conditions of the cultured oysters as well as for the spat settlement of juvenile greenshell{\texttrademark} mussels.",
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note = "Funding Information: The New Zealand Ministry for Business, Innovation and Employment for funding the research (CAW16407). Paul Barter and Marc Jary at the Cawthron Institute designed, produced and maintained the monitoring equipment. Overseas collaborators - Prof Arne Fredheim and Dr Hans Bjelland (SINTEF), Dr Michael Chambers (University of New Hampshire) for the input of ideas and auditing developments. For Sanford and Kono for design suggestions input and special thanks to Whakatohea Mussels LTD for design assistance and vessel and staff support. ",
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Download

TY - JOUR

T1 - New system design for the cultivation of extractive species at exposed sites - Part 1

T2 - System design, deployment and first response to high-energy environments

AU - Heasman, Kevin

AU - Scott, Nicholas

AU - Smeaton, Malcolm

AU - Goseberg, Nils

AU - Hildebrandt, Arndt

AU - Vitasovich, Peter

AU - Elliot, Andrew

AU - Mandeno, Michael

AU - Buck, Bela H.

N1 - Funding Information: The New Zealand Ministry for Business, Innovation and Employment for funding the research (CAW16407). Paul Barter and Marc Jary at the Cawthron Institute designed, produced and maintained the monitoring equipment. Overseas collaborators - Prof Arne Fredheim and Dr Hans Bjelland (SINTEF), Dr Michael Chambers (University of New Hampshire) for the input of ideas and auditing developments. For Sanford and Kono for design suggestions input and special thanks to Whakatohea Mussels LTD for design assistance and vessel and staff support.

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N2 - The purpose of this publication is to perform a system analysis of new cultivation technology for exposed bivalve farming. The technical feasibility of the new construction, called Shellfish Tower, was assessed. The device has gone through several very different phases of development on its way to the deployment of the prototype. These included multiple iterations during the designing stage, wave tank testing, fabrication, loading and unloading on trucks and vessels, deployment at sea, installation and assembly on the single mooring line, and bring it to its final position in a submerged mode 5m-10 m below the water surface. The final structure has a hexagonal body, with a centrally orientated variable buoyancy unit with culture sub-units on each of the six corners. These sub-units can be used for the culture of oysters (Magallana gigas – formally Crassostrea gigas) as well as for the collection of mussel spat (Perna canaliculus). Other possible candidates could be seaweed, lobsters, sponges or tunicates. The operational depth of the whole system can be at any depth but was tested at between 5 and 10 m below the water surface positioned on the mooring line between the screw anchor and surface floats for the prototype tests. The system was deployed in March 2019 six nautical miles off the Bay of Plenty, North Island (New Zealand), in exposed waters near a commercial mussel farm and has been in test mode since then. The modelled structure indicates a design tolerance of significant wave height of over 7 m and currents of over 0.8 m/s. Initial results show that the new design has survived waves at 4.6 m significant height and current velocities of up to 0.7 m•s-1, while showing best growth conditions of the cultured oysters as well as for the spat settlement of juvenile greenshell™ mussels.

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