On February 17th UoS colleagues arrived in Poland to start data collection on the carp aquaculture value chain together with Polish partners from ZUT. The main goal is to gain insight into industry practices and collect value chain and life cycle assessment data from Polish carp farming value chain.
ZUT has a large network in the sector and proposed to meet the industry players at the 25th National Conference of Carp Breeders and Training for Fish Producers. This event took place between the 19th and 21st of February 2020 in Slok, a small town in the centre of Poland- this was an excellent opportunity to talk with stakeholders and introduce them to the GAIN project.
The Polish carp sector is considered ‘extensive’: traditional, functioning in large ponds (few hectares up to a few hundred hectares) with low feed or other inputs, while also exposed to predation from birds and other wildlife – as a result, these ponds are characterized by their natural production capacity. Intensification strategies like pond fertilization and feed application (e.g. grains or formulated feeds) are uncommon. This natural and traditional way of producing carp dates back to the middle ages where monks constructed earthen ponds to provide food for the communities. Such carp farming systems are unique to Eastern Europe and produce only a small share of the global carp production.
The majority of carp is farmed in China, using different production systems, of which some are considered ‘intensive’ – with high stocking densities, pond fertilization and formulated feeds. Most of these ponds use polyculture strategies where multiple species maintain the balance in an ecosystem – waste of one species is used as a feed input for the other.
Richard Newton substituted Wenbo Zhang (unable to travel from China due to the Coronavirus) and willingly gave the presentation while providing some interesting insights in the development of aquaculture in China and in particular the diversity in Chinese carp farming systems. Polish carp farmers were curious about it.
(end of part 1 – expect part 2 soon)