COVER
WORK PLAN IMPLEMENTATION   (General)             SCS/GEN/77/15     December 1977

JOINT SCSP/SEAFDEC
REGIONAL WORKSHOP ON AQUACULTURE ENGINEERING
(with emphasis on small-scale aquaculture projects)


Table Of Contents


SOUTH CHINA SEA FISHERIES DEVELOPMENT AND COORDINATING PROGRAMME
Manila, Philippines
December 1977

VOLUME 2 - TECHNICAL REPORT

Held at SEAFDEC Aquaculture Department Facilities
Tigbauan, Iloilo, Philippines
27 November - 3 December 1977

A priority activity of the SCSP is to stimulate the development of aquaculture as an integrated part of the total development of fisheries. Based on its work to date, one of the major constraints found is the lack of practical, sound, workable, engineering practices to guide development. It is felt that all the expertise required exists in the region, but that it is unevenly distributed and not well known among the countries.

This Workshop has provided a vehicle for the exchange of very useful engineering practices and further it has given valuable guidance to the Programme in its future activities to assist the region, particularly in small-scale fisheries development.

It has been carried out with close cooperation of SEAFDEC in providing its facilities and staff and as well as the lodging and living expenses of the participants while attending the Workshop. The Philippine Bureau of Fisheries and Aquatic Resources assisted also in the organization and implementation. Close collaboration, support and participation was given by the private sector, through the Philippine Federation of Fishfarm Producers, Inc.

NOTICE OF COPYRIGHT

The copyright in this publication is vested in the Food and Agriculture Organization of the United Nations. This publication may not be reproduced, in whole or in part, by any method or process, without written permission from the copyright holder. Applications for such permission with a statement of the purpose and extent of the reproduction desired, should be made through and addressed to the Programme Leader, South China Sea Fisheries Development and Coordinating Programme, P.O. Box 1184, MCC, Makati, Metro Manila, Philippines.

JOINT SCSP/SEAFDEC
REGIONAL WORKSHOP ON AQUACULTURE ENGINEERING
(with emphasis on small-scale aquaculture projects)

REPORT IN TWO VOLUMES

VOLUME 1 - GENERAL REPORT

VOLUME 2 - TECHNICAL REPORT

PREPARATION OF THE TECHNICAL REPORT

This Technical Report has been prepared as an adjunct of the General Report, separately published. The Technical Report presents the full report of each Panel Session and Sectoral Meeting, reproduces each of the Contributed Papers and furnishes an index of the Background Papers which were separately furnished to the participants. The Report essentially presents the Papers and forum discussions as developed by the participants. The General Report presents the overall aspects of the Workshop and summarizes findings and recommendations. The Workshop was jointly sponsored by the SEAFDEC Aquaculture Department and the SCSP. The Philippines, through the Bureau of Fisheries and Aquatic Resources, was the host country. This Report was compiled/prepared and edited by Mr. Robert H. Gedney, Workshop Director and Dr. Herminio R. Rabanal, Fishery Officer (Aquaculture Development) of the SCSP office.

TECHNICAL REPORT

ON

THE REGIONAL WORKSHOP ON AQUACULTURE ENGINEERING

(WITH EMPHASIS ON SMALL-SCALE AQUACULTURE PROJECTS)

HELD AT

THE SEAFDEC AQUACULTURE DEPARTMENT FACILITIES IN TIGBAUAN, ILOILO, PHILIPPINES

ON

27 NOVEMBER - 3 DECEMBER 1977

PREFACE

Dean D.K. Villaluz, Chief, Aquaculture Department, SEAFDEC, Iloilo

This Workshop was an important milestone in relating the Technical aspects of the on-going and emerging programmes of SEAFDEC with the needs of the countries participating in the Workshop. It is through these kinds of dialogues that we can keep our efforts in tune with the problems being encountered in the field and which need special attention. It has been our pleasure to furnish the use of our facilities and resources to support the logistics of the Workshop.

ABBREVIATIONS USED IN THIS REPORT

FAO-Food and Agriculture Organization of the United Nations
UNDP-United Nations Development Programme
SCSP-South China Sea Fisheries Development and Coordinating Programme, FAO/UNDP, Manila
SEAFDEC-Southeast Asian Fisheries Development Center
BFAR-Bureau of Fisheries and Aquatic Resources, Philippines
UP-University of the Philippines
UPBAC-University of the Philippines Brackishwater Aquaculture Center
AIT-Asian Institute of Technology (Bangkok)
IPFC-Indo-Pacific Fishery Commission
WVFFPI-Western Visayas Federation of Fish Producers, Inc.
PFFPI-Philippine Federation of Fishfarm Producers, Inc.

Hyperlinks to non-FAO Internet sites do not imply any official endorsement of or responsibility for the opinions, ideas, data or products presented at these locations, or guarantee the validity of the information provided. The sole purpose of links to non-FAO sites is to indicate further information available on related topics.

This electronic document has been scanned using optical character recognition (OCR) software. FAO declines all responsibility for any discrepancies that may exist between the present document and its original printed version.


TABLE OF CONTENTS

PREFACE

ABBREVIATIONS USED IN THIS REPORT

PART I - SUMMARY REPORTS

Session 1 - ENVIRONMENTAL CONSIDERATIONS - PHYSICAL ASPECTS

Session 2 - ENVIRONMENTAL CONSIDERATIONS - CHEMICAL ASPECTS

Session 3 - SITE SELECTION AND SURVEY OF AQUACULTURE PROJECTS

Session 4 - ENGINEERING DESIGNS FOR FRESHWATER AQUACULTURE PROJECTS

Session 5 - ENGINEERING DESIGNS FOR BRACKISH - WATER AND MARINE AQUACULTURE PROJECTS

Session 6 - THE DESIGN OF HATCHERIES

Session 7 - SPECIAL TOPICS IN AQUACULTURE ENGINEERING

Sectoral Meeting A - AGRI-AQUACULTURE ENTERPRISES

Sectoral Meeting B - PEN AND CAGE CULTURE

Sectoral Meeting C - SMALL-SCALE SHRIMP HATCHERIES

Sectoral Meeting D - BREAKWATERS FOR AQUACULTURE PROJECTS

PART II - CONTRIBUTED PAPERS

ENVIRONMENTAL CONSIDERATIONS IN THE ENGINEERING OF AQUACULTURE PROJECTS

SCSP-SFDC/77/AEn

/CP 3 - Thompson, G.B. and Y.C. Tai, Environment impact of coastal development arising from reclamation and associated activities, with particular reference to fisheries and aquaculture

/CP 6 - Guanzon, J.C. and S.S. Basa, Fishpond development and its relation to flooding in the Philippines with particular reference to the Pampanga River Delta and Candaba Swamp area, Luzon (Summary of Project Report)

/CP 15 - Delmendo, M.N., Environmental and engineering considerations in the development and management of aquaculture projects in floodplains

/CP 28 - Gatus, A.R. and E.S. Martinez, Engineering considerations in the release of mangrove swamps for development into fishponds

/CP 30 - Camacho, A.S., Implications of acid sulfate soils in tropical fish culture

DESIGN OF HATCHERIES

/CP 11 - Osborn, P.E., Design of a freshwater fish hatchery for small fish farmers

/CP 13 - Cook, H.L., Small-scale shrimp hatchery project

/CP 23 - Tiensongrusmee, B., Experiences and problems in the design and management of penaeid shrimp hatchery in Thailand

/CP 22 - Singholka, S., Observations on the design, construction and management of small-scale or backyard hatchery for Macrobrachium rosenbergii in Thailand

DESIGN OF HATCHERIES

/CP 32 - Ong, K.S., F.O. Ng, and Y.K. Wong, Experiences and problems in the design and operation of a Macrobrachium hatchery

SITE SELECTION, DESIGN AND CONSTRUCTION OF FRESHWATER FISHPONDS

SCSP-SFDC/77/AEn

/CP 4 - Sin, A.W., Design, layout and construction of freshwater fishponds used for finfish culture in Hong Kong

/CP 24 - Tiensongrusmee, B., Layout, construction and environmental problems of freshwater fishponds in Thailand

/CP 34 - Low, S.J. and Hashim Othman, Layout and construction of freshwater fishponds in Malaysia

/CP 7 - Rudayat, N. and K.S. Oetomo, The design and construction of freshwater fishponds in Indonesia

SITE SELECTION, DESIGN AND CONSTRUCTION OF BRACKISHWATER FISHPONDS

/CP 5 - Sin, A.W., Engineering aspects of brackishwater ponds for aquaculture in Hong Kong

/CP 18 - Esguerra, R.S., The layout, construction and management of brackishwater fishponds in the Philippines

/CP 27 - Lijauco, M.M., Plans and programmes of the SEAFDEC Leganes Station, Iloilo, Philippines, with emphasis on varied layouts and design of ponds

SCSP-SFDC/77/AEn

/CP 16 - Denila, L., Improved methods of manual construction of brackishwater fishponds in the Philippines

/CP 29 - Yamashita, M. and Sutardjo, Engineering aspects of brackishwater pond culture in Indonesia

/CP 19 - Tamiyavanich, S., Engineering aspects of brackishwater pond culture in Thailand

/CP 31 - Fisheries Division (Malaysia), Engineering considerations in the construction and management of shrimp trapping ponds in Malaysia

DESIGNS OF AGRI-AQUACULTURE PROJECTS

/CP 10 - Jamandre, E.V., Integrated piggery and milkfish culture - some problems and constraints

/CP 17 - Edwards, P., Design of an experimental stabilization and fishpond aquaculture system

/CP 8 - Oetomo, K.S., Layout construction modifications of rice fields used for fish culture in Indonesia

/CP 25 - Arce, R.G. and C.R. dela Cruz, Design/ layout considerations in a freshwater rice-fish culture farm in the Philippines

DESIGN AND CONSTRUCTION OF FISH CAGES AND PENS

/CP 2 - Chan, W.L., Design and construction of floating marine fish cages in Hong Kong

/CP 9 - Sodikin, D., Fish cage culture in Indonesia: its construction and management

DESIGN AND CONSTRUCTION OF FISH CAGES AND PENS

/CP 33 - Teng, K.S., T.E. Chua and H.C. Lai, Construction and management of floating net-cages for culturing the estuary grouper, Epinephelus tauvina (Forskal) in Penang, Malaysia

/CP 26 - Alferez, V.N., Engineering aspects and problems in the design and construction of fishpens and fish cages in Laguna Lake, Philippines

/CP 20 - Tiensongrusmee, B. and P. Aguru, The construction and management of fish cages used for aquaculture in Thailand

SPECIAL TOPICS IN AQUACULTURE ENGINEERING

/CP 1 - Jamandre, T.J., Jr., Pumps for brackishwater aquaculture

/CP 21 - Tamiyavanich, S., Water pumps and their uses for aquaculture in Thailand

/CP 12 - Osborn, P.E., A survey of aeration devices

/CP 14 - Hechanova, R.G., Practical applications of the basic principles of hydraulics and soil mechanics in aquaculture engineering

/CP 35 - Lopez, J.R., The engineering orientation of funding assistance in aquaculture development in the Philippines (Summary)

ANNEXES

ANNEX A - DIRECTORY OF PARTICIPANTS OBSERVERS/RESOURCE PERSONS, GUESTS AND STAFF

ANNEX B - GENERAL PROGRAMME OF WORKSHOP

ANNEX C - INDEX OF BACKGROUND PAPERS