36 SEPTEMBER 2024 • WORLD AQUACULTURE • WWW.WAS.ORG of nutrients from the fish and uptake of total ammonia nitrogen by the shellfish and seaweed surrounding the system. Parameters that will be measured are temperature, dissolved oxygen, salinity, chlorophyll, dissolved organic matter, turbidity, pH, and nitrate, as well as currents and waves. We will be taking discrete water and benthic samples to validate these parameters along with measuring ammonia and nitrate. Lastly, we will evaluate biodiversity through eDNA monitoring and FlowCam plankton sampling (Figure 5). This will help us to better understand the effects of IMTA on a coastal ecosystem. In Closing The community-scaled IMTA approach supports our philosophy to develop seafood for local markets while maintaining the culture of the working maritime waterfront. By taking a rigorous scientific approach, we strive to quantify the interactions between the fed and extractive species within our precious coastal environment while documenting system economics. Moving forward, we will continue our educational mission and explore applying similar approaches in other regions of the U.S. and abroad. Acknowledgments A special thanks to all the students, researchers, professors, and fishermen that have guided and participated in the UNH IMTA efforts, including Longhuan Zhu, Research Scientist, School of Marine Science and Ocean Engineering, Igor Tsukrov, Professor of Mechanical Engineering, Willian Howell, Professor Emeritus of Biological Sciences, M. Robinson Swift, Professor Emeritus of Mechanical Engineering, Barbaros Celikkol, Professor Emeritus of Mechanical Engineering, Ken Baldwin, Professor Emeritus of Mechanical Engineering, all with the University of New Hampshire, Durham, NH, and Arron Jones, Mariculture Technician, Alaska Sea Grant, Kodiak, Alaska. Also, a big thanks to past NOAA Sea Grant and Saltonstall-Kennedy funding opportunities that made our research possible. Notes Michael D. Chambers*, Michael Coogan, Michael Doherty, Erich Berghahn and David W. Fredriksson, School of Marine Science and Ocean Engineering, University of New Hampshire, Durham, NH 03824, USA. * Corresponding author: Michael.chambers@unh.edu References Chambers, M. D., M. Coogan, M. Doherty and W. H. Howell. 2024. Integrated Multi-trophic Aquaculture of Steelhead trout, blue mussels and sugar kelp from a floating ocean platform. Aquaculture. Volume 582, 740540. Chambers, M.D., J. Bunker, W. Watson and W.H. Howell. 2012. Comparative growth and survival of juvenile Atlantic cod (Gadus morhua) cultured in copper and nylon net pens. J. Aquaculture Research and Development, 3:5. http:// dx.doi.org/10.4172/21559546.1000137. DeCew, J., D.W. Fredriksson, P.F. Lader, M. Chambers, W.H. Howell, M. Osienki, B. Celikkol, K. Frank, and E. Høy. 2013. Field measurements of cage deformation using acoustic sensors. 2013. Aquacultural Engineering. Volume 57, November 2013, 114-125. DeCew, J., B. Celikkol, K. Baldwin, M. Chambers, J. Irish., M. Swift, and I. Tsukrov, 2012. The Design, Deployment, Utilization and Recovery of an Offshore Mooring System for Finfish Aquaculture. World Aquaculture Magazine, Volume 43 (3), 32-36. Chambers, M.D., J. DeCew, B. Celikkol, M. Yigit and M.C. Cremer. 2011. Small-Scale, Submersible Fish Cages Suitable for Developing Economies. Global Aquaculture Advocate. January/ February 2011. Chambers, M., R. Langan, W. Howell, B. Celikkol, K., W. Watson, R. Barnaby, J. DeCew and C. Rillahan. 2007. Recent Developments at the University of New Hampshire Open Ocean Aquaculture Site. Bull. Aquacul. Assoc. Canada 105-3. http://aquacultureassociation.ca/wp-content/uploads/bsk-pdfmanager/2022/02/25-Cod-Aquaculture-105-3.pdf Chambers, M. D. and W. Howell. 2006. Preliminary information on cod and haddock production in submerged cages off the coast of New Hampshire, USA. ICES Journal of Marine Science, Volume 63, no. 2. Chambers, M.D., W.H. Howell, R. Langan, B. Celikkol and D. Fredriksson. 2003. Status of Open Ocean Aquaculture in New Hampshire. Open Ocean Aquaculture, from Research to Commercial Reality. The World Aquaculture Society. Baton Rouge. Fredriksson, D.W., J. DeCew, M.R. Swift, I. Tsukrov, M.D. Chambers and B. Celikkol. 2004. The Design and Analysis of a Four-Cage, Grid Mooring for Open Ocean Aquaculture. Aqua. Eng. Volume 32 (1), 77-94. Langan, Richard and F. Horton. 2003. Design, operation and economics of submerged longline mussel culture in the open ocean. Bull. Aquac. Assoc. Can. 103, 11-20. Rillahan, C., M. Chambers, W. Howell and W. Watson. 2011. The behavior of cod (Gadus morhua) in an offshore aquaculture net pen. J. Aquaculture 310, 361-368. Rillahan, C., M. Chambers, W. Watson and W. Howell. 2009. A selfcontained system for observing and quantifying the behavior of Atlantic cod, Gadus morhua, in an offshore aquaculture cage. J. Aquaculture 293, 49-56. Willert, M., C. France, C. Baldwin and M. Hay. 2023. Historic trophic decline in New England’s coastal marine ecosystem. Oecologia. 202, 1-9. 10.1007/s00442-023-05410-0. FIGURE 5. Instrumentation that will be deployed at the AquaFort to measure physical and biological parameters of nutrient flow and uptake at the farm.
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