This FAO publication on brine shrimp is a manual for all those who are using Artemia or have an interest in this organism, whether as a source of live food in the hatchery, as a model organism in research, or for other purpose. It is intended for those who wish to update their knowledge on its biology, production or its use, but also for those who want to learn about Artemia for the first time. This manual presents in a concise form essential information on Artemia biology and the most important natural cyst resources that find their way to the aquaculture market. It also provides detailed information on general principles and practical procedures to produce Artemia in ponds and in tank systems. Finally, the manual offers a compilation of state-of-the-art guidelines and methodologies related to the use of this crucial live food organism in aquaculture.

Collectively carps represent the largest global aquaculture sector, contributing over 20 percent of global aquaculture production. The Indian major carps including catla (Catla catla), rohu (Labeo rohita) and mrigal (Cirhinnus mrigala) are cultured widely across the Indian sub-continent with the main culture system being a multi-species polyculture in ponds, often including other carp species. This production sector is supported by major seed supply systems producing over 50 billion seed per annum. This case study analyses genetic management of Indian major carps since they were first domesticated with the development of hypophysation techniques in the 1950s. A review of literature and a survey of common hatchery practices identifies significant problems prevalent in the sector brought about by a lack of application of best practices in genetic management resulting in loss of genetic diversity, inbreeding and uncontrolled hybrid introgression.

Apple snails have become a major pest of wetland rice in much of Southeast Asia. Two species are involved, Pomacea canaliculata and P. maculata. One or both of these species have become widely established not only in many parts of Southeast Asia but also in other parts of the world. This book provides an update on research into the biology, management and use of apple snails and highlights the need to prevent further spread of these species.

The success stories of many small-scale farmers in both Asian and African countries have brought insights on the effectiveness and self-sustaining mechanism of the farmer-to-farmer approach of aquaculture extension. This document will only serve as a guide on how to implement farmer-to-farmer approaches on small-scale freshwater aquaculture extension. Translations of the guidebook are available in Arabic, Bahasa Indonesia, Burmese, English, French, Khmer, Lao, Malay, Nepali and Thai.

The objective of this manual was to provide basic guidelines for the hatchery production of Pa Phia (Labeo chrysophekadion) fingerlings. It includes information on managing and spawning broodstock, genetic guidelines, egg incubation, hatching larviculture and fry rearing. Although the guidelines were specifically developed for production of Pa Phia at government hatcheries in the Lao PDR, they may be applied to other, related, species and could be adopted and commercialised by the private sector hatcheries