Navigating the future: Strategic management of a mobile aquaculture system with receding-horizon control
Pillai, AC; Ashton, IGC; Johanning, L; et al.Cook, DG; Vennell, R; Black, SE
Date: 9 August 2024
Conference paper
Publisher
American Society of Mechanical Engineers (ASME)
Publisher DOI
Abstract
The New Zealand-based Whakapohewa ki ahumoana Reimagining Aquaculture project (funded by the Ministry for
Business, Innovation and Employment Endeavour Fund) lead
by Plant & Food Research, is designing a mobile aquaculture
system for finfish, towed by an autonomous vessel, powered by
renewable energy sources.
This work presents ...
The New Zealand-based Whakapohewa ki ahumoana Reimagining Aquaculture project (funded by the Ministry for
Business, Innovation and Employment Endeavour Fund) lead
by Plant & Food Research, is designing a mobile aquaculture
system for finfish, towed by an autonomous vessel, powered by
renewable energy sources.
This work presents the vessel management strategy for this
mobile aquaculture solution, inspired by receding-horizon control, which uses available weather forecasts to minimize the energy consumption by the autonomous vessel while maintaining
an optimal flow speed through the fish enclosure such that the
optimal biological conditions (e.g. swim speed) for the fish can
be maintained. The simulations performed for a generalized
salmonid fish species cultured in Tasman Bay, New Zealand show
that the food storage capacity of the autonomous vessel is consistently a limiting factor at low swim speeds (≤ 0.4 m s−1), while
energy capacity limits at higher swim speeds. The simulations
highlight how such a strategy allows the system to successfully
shelter from storms and by virtue of going further from its “safe
haven” can maintain optimal conditions for the fish through the
enclosure. We anticipate this work to be a starting point for
more sophisticated management strategies considering engineering criteria, species specific requirements, and environmental
parameters such as temperature and water quality that impact
fish welfare explicitly.
Engineering
Faculty of Environment, Science and Economy
Item views 0
Full item downloads 0
Except where otherwise noted, this item's licence is described as © ASME 2024. This version is made available under the CC-BY licence: https://creativecommons.org/by4.0