IMARPE Callao eastern South Pacific Latitude:   -11.9996     Longitude:   -78.9680 Associated Investigators: Jesus Ledesma_Rivera   Related Web Sites: [Instituto del Mar del Peru (IMARPE)]   Related Time Series: [ Zooplankton Region A ]   [ Zooplankton Region B ]   [ Zooplankton Region C ]   [ Callao Chemistry ]   Zooplankton time-series from the Southeast Pacific Upwelling Zone / Peruvian Upwelling Ecosystem. The survey was divided into three regions: Region A: from 03 00 S to 05 59 S Region B: from 06 00 S to 13 59 S Region C: from 14 00 S to 18 30 S Sampling Period:   1964 - present Sampling Gear:   Hensen Net (300um, vertical tows from 50-0 meters); WP2 Net (300um, surface tow)