Periphyton For Biofiltration And Fish Feeding in An Integrated Multi-Trophic Aquaculture System: A Case Study in The Gulf of Aqaba

Lior Guttman*

Received: September 09 2019;   Published: September 18, 2019

DOI: 10.32474/OAJESS.2019.02.000171

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Abstract

The environmental footprint of mariculture is a major obstacle towards expansion of this agro-industry. Additional economic constraints are the high costs of effluent treatment and expensive, non-sustainable ingredients in aquafeeds. Both Ulva and periphyton reveal great potential in nitrogen removal in mariculture effluent. To overcome the relatively minor uptake of nitrate by Ulva, a periphyton-based biofilter can be used either as a stand-alone biofiltration unit or as a polishing unit in an integrated Ulvaperiphyton biofilter. The biomass produced is rich in protein and is suitable for feeding of marine fish, served fresh on the plastic net substrate or included in pelleted aquafeeds to replace fishmeal.

Keywords: Aquaculture; IMTA; Nutrient removal; Periphyton; Ulva

Abstract| Introduction| Marine Periphyton Biofilter for Mariculture Effluent| The Combination of Seaweed Ulva Spp and Periphyton for Mariculture Effluent| Biochemical and Community Composition in Periphyton for Mariculture Effluent| Periphyton for Feeding of Cultured Marine Fish| Acknowledgements| References|