The climate, land and water resources of Cameroon, combined with the high demand for fisheries products, makes this Central African country a high potential area for aquaculture. Fingerling availability and quality have been identified as key constraints which hold the sector back from rapid expansion. Nile tilapia (Oreochromis niloticus) and sharptooth catfish (Clarias gariepinus) are the two most widely cultured species and are often grown in polyculture. Some 32 government hatcheries have been built, but few are functional and none operates at full capacity.
An in-depth report on all aspects of this important industry.
This document is a report of a workshop on genetic resource management in sub-Saharan Africa.
In India, inland aquaculture has emerged as a fast-growing enterprise and a viable alternative to the declining capture fisheries. The present paper is an attempt to assess Indian inland aquaculture with respect to its resource base, output trends, systems and activities, yield gaps, adoption and impact on aquaculturists, economics, returns to inputs, investment needs, and future prospects. The paper is largely based on existing literature and observations made as part of an ICAR-WorldFish demand supply project.
This major work on carp hatchery and nursery methods was part of an Asian Development Bank (ADB) project to improve carp seed production technology in ADB-member countries notably Bangladesh, Burma, Indonesia, Nepal, Pakistan and Sri Lanka. Designed as a reference source on carp seed production and as a mini-library for those stationed at seed production centers remote from scientific information channels.
This manual describes the technologies developed for Milkfish seed production, grow-out and processing in the Philippines.
Common carp (Cyprinus carpio) breeding has a long tradition in Hungary. However, recent economic changes in Eastern Europe and new developments in aquaculture necessitated the need for ensuring quality of the brood stock used in hatcheries and the legal and institutional frameworks needed to implement the program. In addition to good research and development programs and gene banking, it became essential to establish an appropriate legal framework, organize, coordinate and control breeding activities, and provide financial support.
With the recent availability of genetically improved Nile tilapia strain in the Philippines, it is important to look at the existing profile of tilapia hatchery operations in the country to help examine the potential strategies in the dissemination of the improved strain among hatchery operators. This paper attempts to analyze the socioeconomics and production efficiency status of tilapia hatcheries in the Philippines prior to the adoption of genetically improved Nile tilapia strain.
The reproductive potential of three tilapias (Oreochromis aureus, O. spilurus and a red tilapia from Taiwan) were tested in 2 m3 fiberglass tanks with a water salinity of 3-5 ppt. Also, the hybridization of O. spilurus and O. aureus was attempted. The tests lasted for 192-207 days. Eggs were collected weekly and incubated artificially. The number of fry produced was noted. Results showed O. spilurus to have the highest reproductive potential based on fry production (75 fry/m2/day) adn the longest spawning season.