Carp production in semi-intensive conditions can very significantly
This article was featured in Eurofish Magazine 4 2021.
Cereal grains, pelleted, and extruded feed in semi-intensive common carp production have different impacts on production, meat quality, the pond ecosystem, and profitability.
Tag:
aquaculture
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July / August 2021 EUROFISH Magazine 4 Country profile: Italy,…
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Broodstock management lies at the heart of successful aquaculture production. Fish that better meet market demand are produced through generations of strategic breeding. Regardless of species or location, monitoring broodstock success requires careful analysis of breeding efforts and the ability to trace offspring.
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Recognising women’s essential, but often unacknowledged, roles in Spanish fishing and aquaculture This article was featured in Eurofish Magazine 3 2021. Fishing is more than taking fish from the ocean or from inland lakes and streams. The simplistic image of men labouring on the sea in the face of nature’s harsh challenges does not portray the complexities of today’s fishing sector. Before and after fish are taken, a large amount of work must be done, on board and ashore, by both men and women.
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Sustainability certificates increase trust in aquaculture products This article was featured in Eurofish Magazine 3 2021. In many European countries it is currently a somewhat rare find. In other regions of the world, however, the blue and white Best Aquaculture Practices logo with its three stylised fish is much more widespread and is recognised as a symbol of socially responsible, sustainable and environmentally friendly fish and seafood products. What does the BAP seal stand for, has it earned the trust of consumers and should we be paying more attention to it?
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May / June 2021 EUROFISH Magazine 3 Country profile: Lithuania and Spain
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March / April 2021 EUROFISH Magazine 2 Country profile: Hungary and Denmark Aquaculture: Early Sturgeon Sex Discrimination (ESSD),…
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Sturgeon farmers producing fish for caviar would benefit hugely from a molecular-biological sex test for juvenile and adolescent sturgeons. Early sexual identification can significantly decrease production costs by increasing the number of females for caviar production while maintaining a balance of male animals for meat production and for use as brood stock. Additional advantages from the genomic analysis to determine sex could be the identification of genes implicated in growth, meat production, or egg quality (caviar) which opens the door for improvements in these areas. Currently, the normal male to female ratio in production facilities is approximately 1:1 through natural selection. If an early sex test is available, then this ratio could be manipulated to favour the production of either caviar or meat.
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A Danish company has developed a system based on analysing data collected from 12 locations on a fish farm to improve water quality and fish welfare while reducing costs. Blue Unit, a company founded by David Owen, a biologist, in 2009, was established to optimise the operations of recirculation aquaculture systems by exploiting the data available from the RAS. A centralised monitoring system collects data on 13 water quality parameters, including pH, oxygen and carbon dioxide levels, opacity, and salinity, that are monitored by specially designed sensors and compares the numbers with benchmark values from producers around the world.
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A new book from the Turkish Marine Research Foundation celebrates the country’s aquaculture industry, the third largest by volume in Europe after Norway and Spain. The book, Marine Aquaculture in Turkey: Advancements and Management, is a collection of papers written by academics, resource managers, and representatives from industry. Edited by M. Didem Demircan and Deniz D. Tosun from Istanbul University, and Deniz Coban from Aydin Adnan Menderes University, the papers cover all aspects of the aquaculture industry from production to the sector’s effects on the environment and on occupational health. Production Is fully integrated starting from broodstock and ending in a range of products for the market. Seabass, seabream, and rainbow trout farmed inland are the most cultivated species, but smaller volumes of several other species are also produced. The sector boasts 20 hatcheries, 23 feed plants, and over 200 processing facilities, and it maintains close links with the research establishment based in universities and institutes as well as with the government. Turkish legislation is harmonised with EU directives and regulations enabling the country to export some four fifths of its production to the EU. In 2023 the target is to produce 600,000 tonnes (up from 373,000 tonnes in 2019) and to export USD2bn (up from USD1bn in 2019) worth of fish and seafood products.
