This review focuses on yellow head complex viruses that threaten the prawn aquaculture industry and reports on the findings, current research methods, weaknesses of research and highlights knowledge gaps.
FiSAT (FAO ICLARM Stock Assessment Tools) programme was used to estimate population parameters of Lysmata ensirostris from length frequency data. The La (asymptotic length) and K (growth coefficient) were found to be 7.3 cm and 2.2/year respectively and the growth performance index (?) was found to be 2.069. An additional estimate of La Z/K was found to be 7.057 cm and 1.086 respectively. The annual rate of natural mortality (M), fishing mortality (F) and total mortality (Z) were found to be 8.44, 0.92 and 9.36 respectively. The selection pattern was found to be 5.642 cm.
Between 1999 and 2003, the WorldFish Center in Solomon Islands conducted research into the feasibility of a new fishery based on the capture and culture of postlarval coral reef fish for the live fish trade. The work was carried out in two phases: a research phase from late 1999 to the end of 2002; and a “finetuning” phase in 2003. Most of the species were of value to the marine aquarium trade, with very few live reef food fish recorded. The most valuable ornamentals were the banded cleaner shrimp, Stenopus species.
Because of changing hydrological conditions due to infrastructure development to prevent salinity intrusion into the coastal zone, local authorities in Bac Lieu Province, Vietnam, faced complex natural resource management issues concerning managing saline and freshwater resources to support diverse production activities in the coastal zone while farmers had to adjust their production strategies.
In the Bay of Bengal of Bangladesh area the values of asymptotic length (La) for tiger shrimp (Penaeus monodon), green tiger shrimp (Penaeus semisulcatus) and brown shrimp (Metapenaeus monoceros) were found to be 30.0 cm, 23.5 cm and 16.5 cm for male and 32.1 cm, 27.0 cm, and 19.4 cm for female respectively while the growth co-efIicient(K) were 0.94, 0.80 and 1.5 year¯1 for male and 0.97,0.90 and 1.52 year¯1 tor female respectively.
This article revisits through a policy analysis the ongoing debate on shrimp farming aquaculture. It describes the changes in policy orientations that have takenplace in recent years, and tries to relate them to the advocacy strategies developed by different networks and policy communities. The analysis reveals in particular the crucial contribution of the 'power of expertise' and shows how it has been instrumentalised by certain advocacy networks to depoliticise the debate.
The US-ASEAN Coastal Resources Management Project Team assessed the feasibility of brackish pond aquaculture development in Brunei. More than 2000 ha are identified as high priority sites for fishfarm development. Designs of brackishwater aquaculture farms with P. monodon as the target species, are prepared, together with estimates of development costs. The pond culture systems studied considered appropriate for Brunei are earthen ponds for semi-intensive culture, concrete-lined earthen ponds and fully concreted pond walls, both for intensive culture system.
The white spot viral disease in penaeid shrimp affects the development of the global shrimp industry. This paper reviews the viruses that cause the disease, the transmission of the virus, diagnosis and preventive measures.
Assessments made of shrimp catches in Kuwait and available stocks indicate that finfish eat a large majority of theshrimp available. Management measures to be taken in order to reduce this predation problem are considered.
Diseases have been recognized as the major obstacle to the shrimp (Penaeus monodon) and prawn (Macrobrachium rosenbergii) aquaculture production in Bangladesh. The present study assessed the range of aquatic animal health problems encountered and management practices adopted by shrimp and freshwater prawn farmers through a systematic survey.