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|Sergio Calle Lobo and Benjamin García Garcia|
|Lund University, Sweden
|Posters & Accepted Abstracts: J Aquac Res Development|
|The culture of aquatic organisms is spreading worldwide as it has the potential to decrease global hunger and relieve pressure on fishing. However, it is also important to evaluate the impacts caused by this activity – a perfect tool to fulfil this aim is the Life Cycle Assessment (LCA), which calculates impacts caused during a production process. Several aquaculture LCAs have identified aquafeed production as the main impact contributor on aquaculture. In the following study, a LCA on gilt-head sea bream (Sparus aurata L.) has been performed using different diets in order to see which protein sources produce fewer impacts. Standard diet was the commercial standard aquafeed, Diet 1 was rich in glutens, Diet 2 was rich in vegetal protein sources, Diet 3 was rich in animal by-products (Blood meal and poultry by-product meal) and Diet 4 had an equal distribution of every raw material. Results obtained indicate that, as in other species, aquafeed is the main impact contributor for S. aurata aquaculture and that blood meal and poultry by-product meal are the protein sources with fewer environmental burdens. It is also concluded that fishmeal and soybean meal are the most important contributors for global warming out of the raw materials used. Furthermore, that the LCA technique needs a unification of the criteria since the results vary widely depending on the allocation technique. This unification would enable future researchers to compare different studies more easily.|
Sergio Calle Lobo performed his Master’s thesis in IMIDA (Murcian Institute for Investigation and Development of Aliments). His research is focused on life cycle assessment, a very useful tool to determine the impacts produced during the production process of any product. The main goal of his study was to create an alternative aqua feed with less environmental burdens by using alternative raw materials. Currently this aqua feed is only theoretical and the next step is to test it in living animals.
Email: [email protected]
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