High rate algal pond treatment for water reuse in a marine fish recirculation system: Water purification and fish health
| Autor: | Elisabeta Metaxa, Claude Casellas, Jean-Paul Blancheton, P Pagand, Genevieve Deviller, C Alliaume |
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| Přispěvatelé: | Laboratoire Insulaire du Vivant et de l'Environnement (LIVE), Université de la Nouvelle-Calédonie (UNC), BUNC, Pole ID |
| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
[SDE] Environmental Sciences
Recirculation aquaculture systems Water flow Fish health Portable water purification 010501 environmental sciences Aquatic Science Biology 01 natural sciences Macroalgae Aquaculture 14. Life underwater Effluent High rate algal pond 0105 earth and related environmental sciences [SDV.EE]Life Sciences [q-bio]/Ecology environment Ecology business.industry Recirculating aquaculture system 04 agricultural and veterinary sciences Pulp and paper industry 6. Clean water Salinity [SDV.EE] Life Sciences [q-bio]/Ecology environment [SDE]Environmental Sciences 040102 fisheries 0401 agriculture forestry and fisheries Water treatment Seawater business Aquaculture effluent |
| Zdroj: | Aquaculture Aquaculture, 2006, 252 Aquaculture (0044-8486) (Elsevier), 2006-03, Vol. 252, N. 1, P. 92-101 |
| Popis: | Regardless of the degree of closure of a recirculation system, effluents are produced and replacement water is needed, which limits the possibility of locating a seawater production system away from the shoreline. At the Palavas Ifremer station, in the south of France, a High Rate Algal Pond (HRAP) was operated during several years to treat the effluent from a recirculating aquaculture system before reusing it. The effect of the HRAP-treated water on the recirculation system and on the fish was investigated and the optimal algae growing conditions were defined. The experiments were carried out in three rearing systems: one flow through, one recirculating and one recirculating with a HRAP. The water flow rate, temperature, pH and salinity conditions were similar in all systems. The effect of reusing the HRAP-treated water is very limited (1) on the functioning of the recirculation system and (2) on fish performance, but it allows a significant reduction of the dissolved inorganic nitrogen and phosphorus concentration in the rearing water. HRAP treatment reduced metal accumulation in muscle and liver of RAS fish, except for chromium and arsenic. All biomarkers presented no significant difference between systems, except for Superoxide Dismutase (SOD) and EROD, which showed a higher concentration in RAS and in both recirculating system respectively. (c) 2005 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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