Sustainable and innovative algae products: Bridging the gap to a circular economy
This article was featured in Eurofish Magazine 4 2023.…
Tag:
Algae
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Key factor for marine fish fry stocking This article was featured in Eurofish Magazine 2 2023.…
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On a global scale European production of algae is very modest, but companies and research bodies find that algae can contribute to addressing important issues faced in Europe including sustainability, human and animal health, and plastic pollution. The positive role algae can play in these and other fields were among the topics discussed at the AlgaEurope conference.
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Aquaculture
Climate change accelerates the development of algal blooms – Growing threat to fisheries and aquaculture
Microalgae are of fundamental importance for life in the oceans. With their photosynthesis they are the first link in the marine food chains upon which the existence of life in the oceans is based. Under certain conditions, however, uncontrolled mass development of the tiny algae can occur. The resulting algal blooms often have serious ecological and economic consequences and can even be toxic. This article was featured in EM 1 / 2020. -
In May 2019, over eight million farmed salmon suffocated in northern Norway as a result of a persistent algae bloom. The estimated economic loss from the 10,000 tonnes of farmed salmon is as much as 620 million Norwegian Kroner (EUR64m). The enormous algae blooms, which occurred due to warm weather, spread rapidly around Norway’s northern coast, sticking to fish’s gills and suffocating them. While wild fish can swim away from the lethal clouds of aquatic organism, farmed fish are trapped at the mercy of the algae. Harmful algae blooms occur when the normally occurring aquatic plants grow out of control due to warm weather. Some are attributing the severity of these algae attacks to climate change.
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The Norwegian Directorate of Fisheries has issued warnings that toxic algae blooms (Chrysochromulina leadbeaterii) are affecting an area of about 450 kilometres of the northern coastline of Norway.
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Fish oil is not available in sufficient quantities to meet the growing needs of the aquaculture and nutraceutical industries. Although essential omega-3 fatty acids are also to be found in microalgae, production capacity has so far been low. That is now changing, however, and developments in this field are making rapid progress. The first feeds for aquaculture with omega-3 fatty acids from algae are now available on the market.
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September / October 2018 EM 5 Country profile: Latvia Technology: Industry 4.0 conquers the fish processing sector –…