Multivariate factor analysis reveals the key role of management in integrated multitrophic aquaculture of veta la Palma (Spain)
| Autor: | A. Jiménez-Rodríguez, Laura Serrano, Ana Milstein, M. Medialdea, N. Mazuelos, M. J. Fernández-Rodríguez |
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| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
biology business.industry 010604 marine biology & hydrobiology 04 agricultural and veterinary sciences Aquatic Science biology.organism_classification 01 natural sciences Feed conversion ratio Veta La Palma Fishery Aquaculture Natural food 040102 fisheries 0401 agriculture forestry and fisheries Dicentrarchus Sea bass Polyculture business Palaemonidae |
| Zdroj: | Aquaculture. 495:484-495 |
| ISSN: | 0044-8486 |
| Popis: | Understanding the extent of management required by integrated multitrophic aquaculture (IMTA) is essential to foster sustainable aquaculture practices at a commercial scale. The aquaculture farm-wetland complex of Veta la Palma (SW Spain) is an example of a currently viable land-based IMTA system that produced 657 t of European sea bass ( Dicentrarchus labrax ) in 2010. This farm combined the semi-intensive production of D. labrax in grow-out fish ponds with the extensive production of Mugilidae and Palaemonidae naturally recruited in multitrophic polyculture lagoons. Two sets of polyculture lagoons and their respective adjacent fish ponds were studied biweekly in 2009–2010. The polyculture lagoons promoted an extensive natural food web and removed an estimated 91% of the total incoming dissolved inorganic nitrogen discharged by the fish ponds. Water recirculation across the farm supplied the fish ponds with natural food from the polyculture lagoons and thus the feed conversion ratio (FCR) of D. labrax was −3 ) and an external aquafeed supply limited to warmer months in the grow-out fish ponds. |
| Databáze: | OpenAIRE |
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