It was obtained the optimal rotation time for the polyculture of tilapia
nilótica and white shrimp in freshwater, with a bioeconómic model. Data
for modelling were extracted from an experiment conducted in
CINVESTAV-IPN, unit Mérida, during the summer of 2008. The stocking
densities studied were 32.2 tilapia/m3 and 33.7 and...
Data were collected and investigated on 33 communes, 86 villages with a total area of 22,000 ha lagoon. The research are applied with quantitative and qualitative applications. The results were conducted in stable livelihood in the long-term, ensuring life. The results were showed the thousand of residents, the socio-economic situation,...
A total of 225 Clarias gariepinus fingerlings with average weight of 8.30 g±0.01 were fed rations in which rumen content (RC) were included in a completely randomized design. They were grouped into 5 treatments of 3 replicates, each containing 15 fish, fed RC in a practical diet at 0, 6,...
Vietnam with three-quarters of the country is mountainous and hilly, around 1.4 million ha of inland and coastal waters suitable for aquaculture purposes. In Vietnam, marine fish cage culture has been developed since the 1970s and significant expansion took place in the early 1990s. There are approximately 500 ha of...
The present paper studied system viability of tilapia nilotica and Australian redclaw crayfish in
polyculture, considering tialpia as main species. Three scenarios were analyzed: tilapia monoculture with
38.7 fish/m3 and tilapia and Australian redclaw polyculture, considering the same stocking density for
fish in monoculture and 17.5 crustaceans/m2, of which one...
The role of aquaculture industry is becoming more prominent in order to supplement marine capture in meeting the food need of the growing population. In an attempt to minimize depletion of marine fisheries only traditional vessels are allowed to fish along the coastal area while bigger vessels are regulated to...
This paper addressed the budgeting analysis of catfish marketing in Ondo
State. The catfish sellers were interviewed from the market with the aid of
structured questionnaire and personal interviews. Data were collected using
simple random sampling technique from fifty (50) marketers. The data
collected were analyzed using frequencies, percentages, profitability...
Studies on poverty have focused predominantly on low income and food poverty. Little or no attention has been given to the emerging problem of adequate calorie intake accompanied by low micronutrient levels, particularly in diets of rural households in transition and developing economies. Micronutrient deficiencies are related to child mortality,...
The european markets for some products are strongly regulated by production and price instruments. In the
fishing case, the mayority of instruments are adopted in cetralized way from experts who can only with difficulty consider
the market pecularities for some species at a national, regional or local level in their...
The objective of this study was to determine the sustainable yield of the small - scale fisheries operations in Lagos
State. Between January and December 1991, 113 mechanized and 43 non-mechanized fishing units in 21 coastal villages
were purposively chosen and surveyed on a bi-monthly basis through questionnaire administration. Costs...