Potential for agricolture by-products as feed and fertiliser inputs

Productivity and variety of crops interpreted as availability of agricultural by products as inputs for fish farming. The objective of this map is to indicate the locations, availability and variety of agricultural by-products that could be used as inputs for fish farming. These can be related to agronomic suitability as measured by the length of growing period (LGP). Agro-ecological zones for 11 crops were defined for Africa by FAO (1978). LGP was calculated from data collected from 730 stations and plotted at 30-day intervals at 1:5 million scale. **Data publication:** 1994-01-01 **Supplemental Information:** This map derives from a wider study that evaluates inland fish farming potential at a continental-level, published by J.M. Kapetsky with the title "A strategic assessment of warm-water fish farming potential in Africa ". CIFA Technical Paper. No. 27. Rome, FAO. 1994. 67p. Resolution 18 km x 18 km. **Contact points:** Metadata Contact: [Jose Aguilar-Manjarrez](mailto:Jose.AguilarManjarrez@fao.org) **Data lineage:** Conversion from ASCII files to Arc/Info GRID **Online resources:** Inputs (GRID format) CIFA Tecnical Paper 27 CIFA Tecnical Paper 27 - 8. APPENDIX IIASA

Areas with market potential for commercial fish farming in Latin America. Map based on urban locations and motorable roads. It identifies the extent and the location of areas influenced by a certain marketing centre taking into account the travel time and the importance of the urban market (in terms of number of people living in the urban area). Locations or urban centres were provided by ArcWorld at a 1:3 million scale. The road network was derived from the Digital Chart of the World (DCW). **Data publication:** 1997-01-01 **Supplemental Information:** This map derives from a wider study that evaluates inland fish farming potential at a continental-level, published by J.M. Kapetsky and S. S. Nath with the title "A strategic assessment of the potential for freshwater fish farming in Latin America " . COPESCAL Technical Paper. No. 10. Rome, FAO. 1997. 128p. Resolution 9 km x 9 km. **Contact points:** Metadata Contact: [Jose Aguilar-Manjarrez](mailto:Jose.AguilarManjarrez@fao.org) **Data lineage:** Conversion from ASCII files to Arc/Info GRID **Online resources:** Online resource Online resource Potential market demand: commercial fish farming (GRID format)

Areas with suitability for small-scale fish farming development and operation. Map derived from the combined suitability of four land-quality factors important for fish farming development and operation; net annual water loss from ponds through evaporation and seepage; soil and terrain suitability for ponds; potential for agriculture by-products and fertiliser inputs; and potential for farm gate sales. **Data publication:** 1997-01-01 **Supplemental Information:** This map derives from a wider study that evaluates inland fish farming potential at a continental-level, published by J.M. Kapetsky and S. S. Nath with the title "A strategic assessment of the potential for freshwater fish farming in Latin America " . COPESCAL Technical Paper. No. 10. Rome, FAO. 1997. 128p. Resolution 9 km x 9 km. **Contact points:** Metadata Contact: [Jose Aguilar-Manjarrez](mailto:Jose.AguilarManjarrez@fao.org) **Data lineage:** Conversion from ASCII files to Arc/Info GRID **Online resources:** Online resource Online resource Suitability for small scale fish farming (GRID format)

Economic considerations for subsistence fish farming obtained by combining local market demand with availability of agricultural by-products as inputs. Population density (inhabitants/km2) was used to represent local market demand for fish farming at the commercial level. Productivity and variety of crops were interpreted as availability of agricultural by products as inputs for fish farming. Population density as inhabitants/km2 for the year 1988 was obtained from UNEP/GRID Nairobi. Agro-ecological zones for 11 crops were defined for Africa by FAO (1978). LGP was calculated from data collected from 730 stations and plotted at 30-day intervals at 1:5 million scale. **Data publication:** 1994-01-01 **Supplemental Information:** This map derives from a wider study that evaluates inland fish farming potential at a continental-level, published by J.M. Kapetsky with the title "A strategic assessment of warm-water fish farming potential in Africa " . CIFA Technical Paper. No. 27. Rome, FAO. 1994. 67p. Resolution 18 km x 18 km. **Contact points:** Metadata Contact: [Jose Aguilar-Manjarrez](mailto:Jose.AguilarManjarrez@fao.org) **Data lineage:** Conversion from ASCII files to Arc/Info GRID **Online resources:** Economics (subsistence) (GRID format) CIFA Tecnical Paper 27 CIFA Tecnical Paper 27 - 8. APPENDIX Online resource

Spatial distribution of potential yield (crops/y) of carp fed at 75% satiation and harvested at 600g. Yield estimations for carp were based on water temperature which in turn were predicted from air temperature. Mean maximum and minimum monthly air temperatures grids were provide by FAO's Agrometeorology group. In order to explore a range of commercial aquaculture possibilities by the use of the growth model, simulations were conducted for carp, assuming two different feeding levels and two harvesting weights (600 and 1,500 g). Feed application rates corresponding to 50% and 75% satiation were assumed to represent commercial aquaculture operations with low and high feeding rates, respectively. **Data publication:** 1997-01-01 **Supplemental Information:** This map derives from a wider study that evaluates inland fish farming potential at a continental-level, published by J.M. Kapetsky and S. S. Nath with the title "A strategic assessment of the potential for freshwater fish farming in Latin America " . COPESCAL Technical Paper. No. 10. Rome, FAO. 1997. 128p. Resolution 9 km x 9 km. **Contact points:** Metadata Contact: [Jose Aguilar-Manjarrez](mailto:Jose.AguilarManjarrez@fao.org) **Data lineage:** Conversion from ASCII files to Arc/Info GRID **Online resources:** Online resource Online resource Potential yield of Carp (GRID format)

Spatial distribution of potential yield (crops/y) of pacu fed at 75% satiation and harvested at 600g. Yield estimations for pacu were based on water temperature which in turn were predicted from air temperature. Mean maximum and minimum monthly air temperatures grids were provide by FAO's Agrometeorology group. In order to explore a range of commercial aquaculture possibilities by the use of the growth model, simulations were conducted for pacu, assuming two different feeding levels and two harvesting weights (600 and 1,000 g). Feed application rates corresponding to 50% and 75% satiation were assumed to represent commercial aquaculture operations with low and high feeding rates, respectively. **Data publication:** 1997-01-01 **Supplemental Information:** This map derives from a wider study that evaluates inland fish farming potential at a continental-level, published by J.M. Kapetsky and S. S. Nath with the title "A strategic assessment of the potential for freshwater fish farming in Latin America " . COPESCAL Technical Paper. No. 10. Rome, FAO. 1997. 128p. Resolution 9 km x 9 km. **Contact points:** Metadata Contact: [Jose Aguilar-Manjarrez](mailto:Jose.AguilarManjarrez@fao.org) **Data lineage:** Conversion from ASCII files to Arc/Info GRID **Online resources:** Online resource Online resource Potential yield (crops/y) of pacu fed at 75% satiation and harvested at 600 g (GRID format)