Design and modeling of submersible fish cages with copper netting for open ocean aquaculture marine 2013

Andrew Drach, Igor Tsukrov, Judson Decew, M. Robinson Swift, Barbaros Celikkol, CARLOS FELIPE HURTADO FERREIRA

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

Open ocean aquaculture is a rapidly growing industry with the potential to satisfy the global seafood demand in the environment of declining wild fish harvesting. However, technologies developed for inshore aquaculture are not easily transferrable to the exposed fish farm locations. In particular, the structural integrity of fish cage/mooring systems, and the high cost of the maintenance (cleaning of the biofouled netting) are two major concerns in the engineering for open ocean aquaculture. This paper deals with introduction of copper alloy nets in open ocean aquaculture as a new technology to reduce biofouling, improve cage volume stability, its structural strength, and to provide additional protection from predators. Copper alloys have natural resistance to corrosion and biofouling combined with high strength and stiffness. However, these materials have higher density, different hydrodynamic properties and structural characteristics when compared to traditionally used nylon nets. The paper presents novel design and fabrication procedures needed for engineering of the offshore fish farms utilizing copper alloy netting. These procedures are illustrated on a commercial size gravity-type offshore fish cage, which was designed and successfully deployed in the Pacific Ocean near Isla Italia (Patagonia, Chile).

Original languageEnglish
Title of host publicationComputational Methods in Marine Engineering V - Proceedings of the 5th International Conference on Computational Methods in Marine Engineering, MARINE 2013
Pages178-189
Number of pages12
StatePublished - 2013
Externally publishedYes
Event5th International Conference on Computational Methods in Marine Engineering, MARINE 2013 - Hamburg, Germany
Duration: 29 May 201331 May 2013

Publication series

NameComputational Methods in Marine Engineering V - Proceedings of the 5th International Conference on Computational Methods in Marine Engineering, MARINE 2013

Conference

Conference5th International Conference on Computational Methods in Marine Engineering, MARINE 2013
Country/TerritoryGermany
CityHamburg
Period29/05/1331/05/13

Keywords

  • Copper alloy net
  • Design
  • Finite element analysis
  • Offshore aquaculture
  • Submersible fish cage

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