The study was conducted to assess key factors influencing suspected white spot syndrome virus (WSSV) disease and associated shrimp production and economic performance in three contrasting black tiger shrimp (Penaeus monodon) culture technologies promoted by the United States Agency for International Development funded Shrimp Quality Support Project (SQSP) in Bangladesh.
Egyptian Government expresses efforts to provide aquaculture industry with high quality fish and to prevent diseases outbreak. The production of larvae and fry is still unpredictable for some species, owing to the lack of control of the microbiota in the rearing systems. Using conventional approaches such as the use of disinfectants and antimicrobial drugs, have had limited success in the prevention or cure of aquatic disease. Also, use of antibiotics does not constitute a sustainable solution, and may result in microflora imbalance for the larvae.
Marine protected areas were established in the Philippines as early as 1974. These early models on Sumilon and Apo Islands and others set forth a framework for coral reef management that has been shown to enhance fish yields to traditional fishers as well as protect and maintain nearshore coral reef habitats for biodiversity and multiple economic uses. The history of marine protected areas in the Philippines is described in relation to their present context.
This paper assesses the costs and benefits of a proposed project for restocking sandfish (Holothuria scabra) in Khanh Hoa Province, Vietnam. It identifies the key stakeholders, institutional framework, management and financing required for its implementation. The recommended management strategy includes a 50 percent harvest at optimum size. Limiting the number of boats fishing an area, possibly through licensing, can control the number of sandfish removed. The easiest way to prevent harvesting of undersized sandfish is to control the size of processed sandfish from processors.
An system is described for the processing of data regarding the licensing and management of foreign fishing.
This Workshop, made possible by a grant from the Asian Development Bank (ADB) to the International Center for Living Aquatic Resources Management (ICLARM), brought together resource researchers and managers to examine the management of coastal fish stocks and existing resource databases in South and Southeast Asia. The results of the Workshop, documented in this volume, highlight the severe problems related to the management of coastal fish stocks throughout the region. All countries recognize that it is time to remedy these problems and that solutions require multiple action.
Coral reefs are based on a fragile and easily disrupted symbiosis between microalgs.e and coral polyps. The corals, together with macro-algae, form the base of a food web that supports a highly diverse ecosystem. The primary productivity of the system is very high but it is vulnerable to the effects of global warming and environmental degradation caused by physical damage to reefs, by sedimentation and by pollution from plant nutrients, chemical wastes, herbicides, pesticides and oil.
The lack of comprehensive regional treatments of small scale fisheries and the need for improved information for management purposes of this sector in the region are emphasized. Estimating total catches, mapping the seasonal deployment of fleets and quantifying their fishing effort as well as computing catch per unit effort and cost per unit catch for all major gears/species are crucial. In addition, the need to understand oftenly neglected issues, such as the mobility of fisherfolk in and out of the fishery and the role of women in production, distribution and trade are emphasized.
Following a survey of the important traits of Indian carp broodstock at some southern Indian hatcheries, it was found that the broodstock selection was size selective, exerting strong, negative selection of prematuration growth rate and positive selection on age at first maturation. This meant that the hatchery bred inadvertently slower growing and later maturing individuals. Details are given of approaches to avoid such negative selection and minimize inbreeding.
This article provides a short descriptions of some ICLARM programs and projects that dealt with wetlands.