India is the world's second largest producer of farmed freshwater fish. The state of Andhra Pradesh (AP) is by far the most important producer of fish in India. Since the late 1970s, fish culture in AP has undergone a boom (first with Indian major carps, then pangasius), resulting in expansion of pond area to 142,000 ha, and massive increases in inland farmed fish production, to 1.5 million tons. Unregulated growth of carp farming has caused severe environmental conflicts, leading to the demolition of 39,000 ha of ponds by the state.
Early computer applications in temperate stock assessment are briefly reviewed, along with some properties of present lines of programmable calculators and microcomputers. Differences and similarities between temperate and tropical fish stocks are also reviewed, emphasis being given to implications for stock assessment.
A description of the Cuban set longline fishery on Campeche Bank, Gulf of Mexico is given, with emphasis on the effects of different species of pelagic fishes used as bait. The target species is the red grouper Epinephelus morio, with incidental species consisting of other epinephelids (13%), lutjanids (5.4%) and sparids (1.6%).
The parameters a and b of the length-weight relationship of the form W=a L super(b) were computed for 46 species caught in a series of demersal trawl hauls over the period 1995-1997 in the Gulf of Salamanca, Colombia.
Parameters and related statistics of the length-weight relationship of the form W=aL super(b) are presented for 72 species of fish caught in the area of the Itaipu Reservoir in Parana, Brazil. The b values varied between 2.34 and 3.35, with the mean b=2.986 (s.d.=0.230) not significantly different from 3.0 (df=7, p=0.05).
Zooplankton are an important food source for many species of fish. They can provide an inexpensive alternative to other commercial feeds. Zooplankton have several advantages, among them a faster growth and greater feed efficiency for some species. The flavor and texture of fish are also improved with zooplankton as feed. Further research is needed on the chemical composition of zooplankton, the development of zooplankton-based dry diets and the effects of the replacement of fish meal with zooplankton meal for commercial aquaculture species.
This year's report contains the Director General's and Chairman's statements illustrating the major thrust of and progress with the approved 2011 strategy. It incorporates details of the financial statement for the past year. There are highlights from projects covering the enhancement of coastal fisheries, livelihood in the Philippines, programs on lake fisheries in Malawi, to capacity building in terms of long term training for local partners and stakeholders.
The role of the WorldFish Center is to research and disseminate appropriate aquaculture and fisheries technologies for sustainable agricultural intensification. To achieve these goals the WorldFish Center works in partnership with the government of Malawi. It leverages success by collaborating with both local and overseas academic research organizations, drawing funding from the global development community.
An examination is made of the literature on seed stock and live fish transport in the tropics. ASFA and ICLARM library and professional staff collections were used for the search.