Technology Option for Intensive and Aquaculture

By

Shweta Desai

Preface

The dual objective of sustainable aquaculture, i.e., to produce food while sustaining natural resources is achieved only when production systems with a minimum ecological impact are used. Recirculating aquaculture systems (RASs) provide opportunities to reduce water usage and to improve waste management and nutrient recycling. RAS makes intensive fish production compatible with environmental sustainability. This review aims to summarize the most recent developments within RAS that have contributed to the environmental sustainability of the European aquaculture sector. The review first shows the ongoing expansion of RAS production by species and country in Europe. Life cycle analysis showed that feed, fish production and waste and energy are the principal components explaining the ecological impact of RAS. Ongoing developments in RAS show two trends focusing on: technical improvements within the recirculation loop and recycling of nutrients through integrated farming. Both trends contributed to improvements in the environmental sustainability of RAS. Developments within the recirculation loop that are reviewed are the introduction of denitrification reactors, sludge thickening technologies and the use of ozone. New approached towards integrated systems include the incorporation of wetlands and algal controlled systems in RAS. Finally, the review identifies the key research priorities that will contribute to the future reduction of the ecological impact of RAS. Possible future breakthroughs in the fields of waste production and removal might further enhance the sustainabilty of fish production in RAS.

Contents

1 – Managing Aquaculture Business

■ Developing Your Business Plan

■ Successful Expectations

■ Going to Market

■ Is It Feasible?

2 – Aquaculture

■ History

■ 21st-century Practice

■ Species Groups

■ Around the World

■ Methods

3 – Systems of Fisheries and Aquaculture

■ Fresh Water Fish Culture

■ Non- Fresh Water Fish Culture

■ On-Fish Aquaculture

4 – Aquaculture Extension

■ Launching Aquaculture Tension Programme

■ Important Considerations Important considerations

5 – Introduction: Aquatic Ecosystem

■ Aquatic Animal

■ Types of Fish Diseases

■ Bacterial Diseases of Fish

6 – Marine Ecosystems, Biodiversity and Conservation

■ Marine Ecosystems

■ Fishing and Marine Ecosystems

■ Fishing and Large Marine Ecosystems

■ Herbivorous Fishes from Coral Repef Ecosystems

■ Capitalism and the Degradation of Marine Ecosystems

■ Environmental Management Systems

7 – Remote Sensing and GIS for Fisheries Management

■ Application of Remote Sensing to Fisheries

■ Satellite Remote Sensing for an Ecosystem Advance to Fisheries Management

■ Satellite Remote-sensing Data for Ecosystem Analyses and Models

8 – Economic Development

■ Water Resource Reduction Caused by Extraordinary

■ Results at Nagayasuguchi Basin

■ Chaos and Sampled Daily Streamflows

■ Characterization of Groundwater

9 – Waste Aquatic Treatment by Microbes

■ Microorganisms

■ Aerobic Microbial Process in Aquacultutre

■ Isolated form of Enzymes

■ Wastewater Treatment

10 – Biotechnology and Its Applications in Aquaculture and Fisheries

■ Genetic Aquaculture Resources

■ Current Status of Aquaculture Genetics

■ Fisheries Sector

■ Biotechnology in Fisheries and Aquaculture

■ Biotechnology In Fisheries Development

11 – Diet Formulation and General Nourish Elements

■ Mill By-ProductsMlLL BY-PRODUCTS

■ Oil ExtractivesOlL EXTRACTIVES

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 Prep. / Ayman Ashry

Manage. / Mona Mahmoud