Deployment: RR_EB04

Chief Scientist: 
David M. Nelson (Oregon State University, OSU)
Platform Type:
Start Date: 
End Date: 
equatorial Pacific Ocean; upwelling zone of the EEP (135 - 140 W)

This study was conducted in the eastern Equatorial Pacific along 110°W between 4°N and 3°S during the Equatorial Biocomplexity cruise (EB04) (December 2004) aboard R/V Revelle. Water samples were collected using a CTD rosette package equipped with 10L Niskin bottles. The ships Acoustic Dopler Current Profiling (ADCP) system was used to measure currents during transits between stations to help define the location of the EUC. Seawater samples were filtered through 0.6 µm polycarbonate filters and stored in acid-washed polypropylene or polycarbonate bottles at room temperature in the dark.

This work was supported by National Science Foundation award OCE0322074, "Plankton dynamics and carbon cycling in the equatorial Pacific Ocean: Control by Fe, Si and grazing". The UNOLS ship scheduling system mistakenly used OCE0333074.

cruise description is from:

Charlotte P. Beucher, Mark A. Brzezinski, Janice L. Jones, Sources and biological fractionation of Silicon isotopes in the Eastern Equatorial Pacific, Geochimica et Cosmochimica Acta, Volume 72, Issue 13, 1 July 2008, Pages 3063-3073, ISSN 0016-7037, DOI: 10.1016/j.gca.2008.04.021