| Reintroduced in 1962. Damaged native Orestias populations and has migrated from the original introduction site to River Desaguadero, Lakes Poopo and Titicacca. The mackerel was initially introduced in the dam Mexico of the Department of Cochabamba; from their it was transported to the lake Poopo, which belongs to the basin endorreica del Titicaca. In 1955 it established itself in the lake Titicaca where according to the study of electroacoustic evaluation (1986) reached a biomass of 20,000 tons. The biologists from Peru considered that this species is displacing the native species in the marshy (lacustrian) littoral zone; they also have detected a mackerel in the principal effluents of the Titicaca. The production of the mackerel in the Peruvian sector of the lake in 1992 was of 2.807 tons, whereas the statistics of commercialization of the fish in La Paz-Bolivia (92-93) record 150 tons. The 70% of the species commercialized come from the Titicaca. The production of mackerel in the Poopo lake reached in 1991 a production of 2,205 TM, in 1992, of 543 tons and in 1993 was reduced to zero due to the total disappearance of this water body. This lake receives the water of the Titicaca through the river Desaguadero.
Ref:
FAO, 1997
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