Effect of stocking density and water flow on Halopteris scoparia IMTA cultivation

Abstract

Event Abstract Back to Event Effect of stocking density and water flow on Halopteris scoparia IMTA cultivation Rita F. Patarra1*, Maria H. Abreu2, Rui Pereira2, Alejandro H. Buschmann3 and Ana I. Neto1 1 cE3c - Centre for Ecology, Evolution and Environmental Changes/Azorean Biodiversity Group, and University of Azores, Department of Biology, Portugal 2 ALGAplus, Prod. e Comerc. de Algas e Seus Derivados, Lda., Portugal 3 Centro i-mar & CeBiB, Universidad de Los Lagos, Chile The benefits of the biological activities of the genus Halopteris to the nutraceutical and cosmetics industries (e.g. antibacterial, antifungal, antioxidant, antifouling and antiaging/antiwrinkle) is well documented. The genus is also known for its important ecological role as an arbore environment for epifauna and epiflora species, as direct food for several invertebrates, and as an environmental indicator. Halopteris scoparia (Linnaeus) Sauvageau, previously known as Stypocaulon scoparium, is a cosmopolitan species of that genus generally distributed in the Atlantic Ocean. It is present all year round in mainland Portugal and the archipelagos of Azores, Madeira and the Canaries, being harvested in some of these locations. To minimize the negative impact of this species exploitation, it is important to develop effective cultivation technics. In this study the effect of stocking density (SD) and water flow (WF) on the productivity and biofiltration capacity of this species was evaluated using a pilot-scale integrated multi-trophic aquaculture (IMTA) system installed at a land-based aquaculture facility. After 1-week acclimation, plants were submitted to different combinations of SD (2 and 5 g L-1) and WF (open flux and semi-closed flux), replicated in 3 230L tanks, for a period of 4 weeks. The best overall growth performance was achieved with a SD of 2 g L-1 independently of the water flow combination tested, reaching a RGR of 5.52±1.84 % day−1 with a biomass production of 13.28±4.43 g dw m−2 wk−1. These results suggest H. scoparia as a good candidate to IMTA cultivation. Acknowledgements Study partly supported by: Portuguese National Funds, through FCT – Fundação para a Ciência e a Tecnologia, within the project UID/BIA/00329/2013; supported by CIRN (Centro de Investigação de Recursos Naturais, University of the Azores), and CIIMAR (Interdisciplinary Centre of Marine and Environmental Research). RFP supported by doctoral grant M3.1.2/F/024/2011. We thank Pedro Sousa, Andreia Rego and Bárbara Pitarma for their assistance with the management and data collection of the IMTA system. Keywords: Halopteris scoparia, IMTA, cultivation, stocking density, productivity Conference: XIX Iberian Symposium on Marine Biology Studies, Porto, Portugal, 5 Sep - 9 Sep, 2016. Presentation Type: Poster Presentation Topic: 4. FISHERIES, AQUACULTURE AND BIOTECHNOLOGY Citation: Patarra RF, Abreu MH, Pereira R, Buschmann AH and Neto AI (2016). Effect of stocking density and water flow on Halopteris scoparia IMTA cultivation. Front. Mar. Sci. Conference Abstract: XIX Iberian Symposium on Marine Biology Studies. doi: 10.3389/conf.FMARS.2016.05.00211 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 02 Sep 2016; Published Online: 03 Sep 2016. * Correspondence: MD. Rita F Patarra, cE3c - Centre for Ecology, Evolution and Environmental Changes/Azorean Biodiversity Group, and University of Azores, Department of Biology, Ponta Delgada, 9501-801, Portugal, ana.rf.patarra@uac.pt Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Rita F Patarra Maria H Abreu Rui Pereira Alejandro H Buschmann Ana I Neto Google Rita F Patarra Maria H Abreu Rui Pereira Alejandro H Buschmann Ana I Neto Google Scholar Rita F Patarra Maria H Abreu Rui Pereira Alejandro H Buschmann Ana I Neto PubMed Rita F Patarra Maria H Abreu Rui Pereira Alejandro H Buschmann Ana I Neto Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.