The IceFish Aquaculture conference took a close look at the new technologies for the Aquaculture sector and explored the latest in feeds and infrastructure.<\/p>\n
Session 2 of this new conference brought together Brett Glencross, Technical Director of IFFO, the Marine Ingredients Organisation, Jan Eric Haagensen, Senior Director Scandinavia at Moleaer, Christian Luckstadt, Technical Director of Addcon and Sigur\u00f0ur Trausti Karvelsson, PhD, R&D Project Manager at First Water.<\/p>\n
Brett Glencross started the session with a presentation, “Towards applying a circularity framework against the use of marine ingredients.”<\/p>\n
Brett defined a circular feed ingredient as “Non-food-grade ingredient recovered as a secondary raw material from the (local) circular economy with a low land-use footprint.”<\/p>\n
He told the packed audience that “two thirds of carbon comes from the feed; any improvements become magnified through the food chain.”<\/p>\n
Circular ingredients should minimise competition with human food and land while considering factors including nutritional value, resource origin and proximity to feed mills.<\/p>\n
Marine by-products can play an important role, retaining nutrients within the food system by converting materials unsuitable for direct human consumption into valuable aquaculture feed.<\/p>\n
Brett also stressed that sustainability assessments must extend beyond carbon. Ingredients account for around 65% of farmed salmon\u2019s carbon footprint, but life-cycle assessment can cover more than 16 environmental indicators, including water and land use, acidification and resource consumption.<\/p>\n
His conclusion was clear: every ingredient has an environmental impact, making context, transparency and highest-value resource use central to developing more circular aquaculture supply chains<\/p>\n
Jan Eric Haagensen, Senior Director, Scandinavia at Moleaer explored how nanobubble technology boosts oxygen efficiency, strengthens fish welfare, and cuts vessel emissions.<\/p>\n
Jan Eric believes the future of Aquaculture is \u201cdoing more with less”.<\/p>\n
In his presentation he asserted that, \u201cIt requires technologies that increase resource efficiency, stabilize water quality, and reduce environmental strain.\u201d<\/p>\n
He also noted, “You can utilise nano bubble technology in a very scalable way, a new world for fish producers.”<\/p>\n
Using three case studies from Gigante Salmon, SalMar and Rostein Jan Eric explored the efficacy of nanobubbles which can:<\/p>\n
He concluded his presentation with the clear view that \u201cThe future of aquaculture requires better water quality, greater efficiency and more productive systems.\u201d<\/p>\n
Christian Luckstadt, Technical Director of Addcon started his presentations with an interesting statistic, “60% of all fisheries on a global scale are now aquaculture hubs…”<\/p>\n
He went on to look at the impact of dietary diformates on Rainbow trout performance under challenged conditions. He shared valuable data on Aquatic production and biodiversity and then took a close look at the variety of acidifiers and their impact on performance and health of fish. He concluded that:<\/p>\n
Sigur\u00f0ur Trausti Karvelsson, R&D Project Manager for First Water delivered an informative presentation on Developing Circular Solutions for Salmon Sludge in Iceland.<\/p>\n
For those delegates who were unaware, he outlined what First Water is, a Salmon farm near \u00deorl\u00e1ksh\u00f6fn. It was founded in 2017, as 95 employees, produces 3,000 tonnes\/year production and is aiming for 60,000 in 2031. It offers hybrid flow-through, grow-out systems and 75% recirculation of seawater.<\/p>\n
Sigur\u00f0ur then posed the question, \u201cWhat could possibly go wrong?\u201d<\/p>\n
He then described in detail the challenges from Salmon sludge – \u201cIn 2031, 60k tonnes of sludge will be produced in Iceland, the equivalent of 8 x 40ft containers every day.\u201d<\/p>\n
In answer to another key question \u201cwhat can we do?\u201d Sigur\u00f0ur listed the key issues, including \u201cGAJA (Sorpa) will not accept fish sludge, it cannot be used as fertiliser on grass land (…yet), it is dangerous\/impossible to transport directly abroad and is a Gas\/Explosion risk.<\/p>\n
Sigur\u00f0ur believes the answer may lie in Terraforming LIFE, an EU-funded collaborative project, which started in 2023 and runs to 2028. Along with five other companies and organisations the \u20ac 10M project, of which 60% is co-financed by EU, looks to turn fish sludge and other Organic Waste into Biogas and Fertiliser.<\/p>\n
It\u2019s an exciting idea which drew much interest from the delegates and will no doubt be discussed during the networking lunch, held within the IceFish exhibition.<\/p>\n","protected":false},"excerpt":{"rendered":"
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