Penaeids play an important role in the subsistence fishery conducted by residents of Suva in Laucala Bay, Fiji. Penaeus canaliculatus is the most abundant of the 6 species that occur. A brief account is given of the fishery and some biological aspects are detailed: catch rates, size and age at sexual maturity, reproduction, mortality and yield.
Aquaculture is the world’s fastest growing food production sector. Developing countries produce the bulk of aquaculture production, and smallholders dominate the rural landscape throughout the developing world, making up a large proportion of people involved in aquaculture production in many countries.
This paper describes the expansion of improved-extensive shrimp (Penaeus monodon) farming in the Mekong Delta, southern Vietnam, emphasizing management decisions, technological constraints and economics.
Based on on-farm surveys implemented in the Ganges Delta in Bangladesh and the Mekong Delta in Vietnam, the dynamics of shrimp aquaculture in salinity-influenced coastal areas were analysed. Qualitative data were collected through interviewing both individual and group farmers in 2005 and 2006, as well as key informants and value chain stakeholders, to obtain an overview of the dynamics of salinity-influenced aquaculture in these two deltas.
Applying Turkey's jackknife method on MSY estimates from the surplus production models of Schaefer and Fox showed that the optimum yield for shrimps in industrial fishery in Sierra Leone is estimated at 2,686.8 t with 15,822 fishing days. Annual catch for 1996 was 2,788 t, indicating an escalation in exploitation which, if prolonged, could bring reduced productivity as experienced in the fishery some years ago.
Shrimp disease of viral origin have caused large production losses worldwide. This paper presents a case study of shrimp (Penaeus monodon; Penaeus indicus) epizootic disease, covering an area of 1,050 ha in Andhra Pradesh, India. The disease struck shrimp farms in the area in July 1994. Samples from 26 shrimp farms were studied in the laboratory, and the pattern of the disease and of mortality recorded. The disease was classified as infectious hepatopancreatic and lymphoid organ necrosis disease (IHLN).
Results of the economic assessment of shrimp hatchery industry in Panay Island, Philippines are presented. In order to ensure continuous viability of hatcheries, the critical areas of concern are: financing of operating capital and improvement of facilities; collective marketing efforts through cooperatives; updating of technology especially in disease prevention and control; and diversification strategies.
This publication is adapted from the report of the project "Dissemination and adoption of milkfish aquaculture technology in the Philippines. 2007" The key lessons learned are highlighted: 1)Strengthen extension systems to better disseminate improved milkfish hatchery and nursery technologies. 2) Enhance the efficiency of milkfish grow-out culture by introducing restrictive feed management and polyculture with shrimp. 3) Train producer communities to add value by processing their milkfish harvest. 4) Improve milkfish farmers access to credit.
The Zhoushan fishing area contains the Zhoushan archipelagos, whose population is nearly 1 million, including over 300,000 fishermen. A detailed account is given of the environment and its resources; there are more than 300 species of fish, over 60 species of shrimp, more than 10 species of crab and more than 50 species of algae in the area. The history of fishery development in the area is described, outlining motorization, technology, and education. Various regulations and management activities, implemented in the 1980s, are highlighted.
A progressive farmer in Tamil Nadu state, India experimented with crop rotation and successfully cultured Penaeus monodon during the dry season and Macrobrachium rosenbergii during the wet season. The details of M. rosenbergii culture are discussed in this article. Rotation with M. rosenbergii did help the farmer overcome the disease problem since farmers who exclusively cultured P. monodon in the nearby areas during the same season suffered losses due to white spot disease.