Abstract
New data from the South American lowland tropics are used in support of a recent argument extolling the potential of fish utilization in major floodplains. The discussion will cover five points: (1) major floodplains in general, and the Amazon and Orinoco floodplains in particular, have similar characteristics that make them biologically productive regions; (2) high fish productivity and the use of mass-fishing techniques in floodplain regions are characteristics of lowland South America; (3) the ecological dynamics of the seasonally inundated savanna are particularly productive and propitious for seasonal exploitation using mass-fishing techniques; (4) differences in species composition and fish size may have implications for seasonal and spatial variations in fish exploitation; and (5) substantial biases are apparent against the retrieval of small fish remains using traditional archaeological recovery techniques.