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By Thai Ngoc Chien Depart. of Fish exploitation and resource management Research Institute for Aquaculture No.3

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1 By Thai Ngoc Chien Depart. of Fish exploitation and resource management Research Institute for Aquaculture No.3

2 FUNCTIONS AND DUTIES Survey aquatic environment, inland and coastal natural resources. Assess the impacts of aquaculture to the surrounding environments Investigate and apply advanced techniques for aquaculture, exploitation, and conservation (e.g. stock enhancement) Collect and conserve native and economically important introduced species, and generate valuable hybrids Study production of brackish and marine micro algae and seaweed as food for aquatic animals Study post-harvest, formulated feeds, and food processing from freshwater and marine products for domestic and export markets INTRODUCTION MINISTRY OF FISHERIES RESEARCH INSTITUTE FOR AQUACULTURE No.3 33 Dang Tat, Nha Trang – Khanh Hoa Tel: (+84) Fax: (+84)

3 INTRODUCTION FUNCTIONS AND DUTIES Test the quality of seed, and feasibility of using feed, and bio- products in aquaculture Develop appropriate fishing gear and apply modern fishing technologies with the aim of sustainable fisheries development Provide guidance on technical, economic and environmental aspects to managers and aquaculturists Transfer techniques to farmers via workshops and training courses Cooperate in national and international research and training. Educate post-graduate students and technical personnel MINISTRY OF FISHERIES RESEARCH INSTITUTE FOR AQUACULTURE No.3 33 Dang Tat, Nha Trang – Khanh Hoa Tel: (+84) Fax: (+84)

4 SUSTAINABLE AQUACULTURE DEVELOPMENT MINISTRY OF FISHERIES RESEARCH INSTITUTE FOR AQUACULTURE No.3 33 Dang Tat, Nha Trang – Khanh Hoa Tel: (+84) Fax: (+84) To minimize the environment impacts from aquaculture, Folke and Kautsky (1992) suggested fish polyculture with water filters such as bivalve and seaweed. - Patrick (2000) proposed that in aquaculture we should combine different species who feed at different trophic levels; this will help to minimize the nutrient loads and maximize using water and food resources. - This principal is based on feeding behavior and living space.

5 SUSTAINABLE AQUACULTURE MODELS MINISTRY OF FISHERIES RESEARCH INSTITUTE FOR AQUACULTURE No.3 33 Dang Tat, Nha Trang – Khanh Hoa Tel: (+84) Fax: (+84) In , Research Institute for Aquaculture No.3 carried out a polyculture technology research project. The project introduced 5 polyculture models as follows: 1) Polyculture of grouper, green mussel and seaweed 2) Polyculture of lobster, seabass, sandfish, green mussel and seaweed 3) Polyculture of lobster, sandfish, green mussel and seaweed 4) Polyculture of Babylon snail, sandfish, green mussel and seaweed 5) Polyculture of Babylon snail, lobster, seabass, sandfish, green mussel and seaweed

6 PRINCIPLES…

7 Green mussel Babylonia snail Seaweed Sea cucumber Particulate Organic matter Dissolved Nutrients (N, P) Benthic Organic matter Oxygen

8 - Improve income at the same time, so we do not waste time and labour cost. - Maximize usage of water resources so we can grow other species without investment in building cages and ponds or reduce the investment cost. - Different species can use the waste or discharges from each other as food, therefore we can decrease the food cost. - We do not use chemicals or antibiotics, so it is very secure food for consumers. - Reduce the waste loads and eutrophication within cultured area. - Keep ecosystem balanced What are the benefits of polyculture/integrated culture? MINISTRY OF FISHERIES RESEARCH INSTITUTE FOR AQUACULTURE No.3 33 Dang Tat, Nha Trang – Khanh Hoa Tel: (+84) Fax: (+84)

9 1. Fishing: high fishing pressure, destructive fishing 2. Destruction of ecosystems and habitats: Mangroves and wetland ecosystems have been converted into aquaculture ponds. Dam constructions for irrigation and building of shipping harbors. 3. Water pollution: Industrial, agricultural and domestic waste discharges reduced the biodiversity and spawning of animals. 4. Disease outbreak: Diseases may cause increasing problems in connection with more intensive production systems. PROBLEMS MINISTRY OF FISHERIES RESEARCH INSTITUTE FOR AQUACULTURE No.3 33 Dang Tat, Nha Trang – Khanh Hoa Tel: (+84) Fax: (+84)

10 Polyculture of Babylonia snail, Sea Cucumber, Green Mussel and Seaweed

11 Polyculture of Grouper, Mussel and Seaweed

12 Polyculture of lobster, sandfish, green mussel and seaweed

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15 Author: MSc.NGUYEN CO THACH MSc. DAO VAN TRI MINISTRY OF FISHERIES RESEARCH INSTITUTE FOR AQUACULTURE No.3 33 Dang Tat, Nha Trang – Khanh Hoa Tel: (+84) Fax: (+84) APPLIED TECHNOLOGIES Penaeus monodon SEED PRODUCTION AND COMMERCIAL CULTURE

16 UPGRADING CULTURE Author: Dr. NGUYEN THI BICH THUY MINISTRY OF FISHERIES RESEARCH INSTITUTE FOR AQUACULTURE No.3 33 Dang Tat, Nha Trang – Khanh Hoa Tel: (+84) Fax: (+84) APPLIED TECHNOLOGIES Panulirus ornatus

17 SEED PRODUCTION Author: Dr. NGUYEN THI BICH THUY MINISTRY OF FISHERIES RESEARCH INSTITUTE FOR AQUACULTURE No.3 33 Dang Tat, Nha Trang – Khanh Hoa Tel: (+84) Fax: (+84) APPLIED TECHNOLOGIES Portunus pelagicus

18 SEED PRODUCTION AND COMMERCIAL CULTURE Author: MSc. NGUYEN CO THACH MINISTRY OF FISHERIES RESEARCH INSTITUTE FOR AQUACULTURE No.3 33 Dang Tat, Nha Trang – Khanh Hoa Tel: (+84) Fax: (+84) APPLIED TECHNOLOGIES Scylla serrata

19 SEED PRODUCTION AND COMMERCIAL CULRURE Author: Dr. NGUYEN THI XUAN THU MINISTRY OF FISHERIES RESEARCH INSTITUTE FOR AQUACULTURE No.3 33 Dang Tat, Nha Trang – Khanh Hoa Tel: (+84) Fax: (+84) APPLIED TECHNOLOGIES Babylonia areolata

20 SEED PRODUCTION AND COMMERCIAL CULTURE Author: Dr. NGUYEN THI XUAN THU MINISTRY OF FISHERIES RESEARCH INSTITUTE FOR AQUACULTURE No.3 33 Dang Tat, Nha Trang – Khanh Hoa Tel: (+84) Fax: (+84) APPLIED TECHNOLOGIES Chlamys nobilis

21 SEED PRODUCTION AND COMMERCIAL CULTURE Author: Prof.Dr. NGUYEN CHNH MINISTRY OF FISHERIES RESEARCH INSTITUTE FOR AQUACULTURE No.3 33 Dang Tat, Nha Trang – Khanh Hoa Tel: (+84) Fax: (+84) APPLIED TECHNOLOGIES Pinctada maxima

22 SEED PRODUCTION AND COMMERCIAL CULTURE Author: Prof. Dr. NGUYEN CHINH MINISTRY OF FISHERIES RESEARCH INSTITUTE FOR AQUACULTURE No.3 33 Dang Tat, Nha Trang – Khanh Hoa Tel: (+84) Fax: (+84) APPLIED TECHNOLOGIES Perna viridis

23 SEED PRODUCTION AND COMMERCIAL CULTURE Author: MSc. LA XUAN THAO MINISTRY OF FISHERIES RESEARCH INSTITUTE FOR AQUACULTURE No.3 33 Dang Tat, Nha Trang – Khanh Hoa Tel: (+84) Fax: (+84) APPLIED TECHNOLOGIES Anadara granosa

24 SEED PRODUCTION AND COMMERCIAL CULTURE Author: Dr. LE DUC MINH MINISTRY OF FISHERIES RESEARCH INSTITUTE FOR AQUACULTURE No.3 33 Dang Tat, Nha Trang – Khanh Hoa Tel: (+84) Fax: (+84) APPLIED TECHNOLOGIES Haliotis asinina

25 SEED PRODUCTION AND COMMERCIAL CULTURE Author: Rayner Pitt and Nguyen Dinh Quang Duy MINISTRY OF FISHERIES RESEARCH INSTITUTE FOR AQUACULTURE No.3 33 Dang Tat, Nha Trang – Khanh Hoa Tel: (+84) Fax: (+84) APPLIED TECHNOLOGIES Holothuria scabra INTRODUCTION

26 SOME NEEDS TO MOVE FORWARD SUSTAINABLE AQUACULTURE DEVELOPMENT MINISTRY OF FISHERIES RESEARCH INSTITUTE FOR AQUACULTURE No.3 33 Dang Tat, Nha Trang – Khanh Hoa Tel: (+84) Fax: (+84) The results of polyculture research are realistic and easy to apply for the farmers. -Encourage the international co-operation to work on sustainable aquaculture development, such as, re- planning, solving pollutions. -Research on environmental carrying capacity of the bays where the aquaculture exist to give recommendations to the local managers for re-planning or recovering shrimp aquaculture industry. - Conserve biodiversity; build marine protected area (MPA).

27 MINISTRY OF FISHERIES RESEARCH INSTITUTE FOR AQUACULTURE No.3 33 Dang Tat, Nha Trang – Khanh Hoa Tel: (+84) Fax: (+84) APPLIED TECHNOLOGIES


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