Resources

FS Meteor M138

Cruise summary report

Cruise Info. 
Ship name (ship code)FS Meteor (06M3)
Cruise identifierM138
Cruise period2017-06-01 — 2017-07-04
StatusCompleted
Port of departureCallao, Peru
Port of returnBahia De Las Minas, Panama
PurposeResearch
ObjectivesObjectives

The work performed during the cruise M138 covered the major aspects of organic matter cycling and their links to the nitrogen and carbon cycle processes in the water column off Peru. To this end the major objectives of M138 were:
(i) to assess the particle distribution and organic matter in the OMZ off Peru,
(ii) to quantify the particle/organic matter fluxes through the OMZ and to decipher the role of zooplankton therein,
(iii) to investigate the role of particles/organic matter availability for N2 fixation, N loss, N2O formation, microbiological diversity and activity,
(iv) to assess the role of anoxia on particle remineralisation rates and elemental stoichiometry and
(v) to investigate the variability of the hydrodynamical forcing relevant for nutrient turnover.

The work in the OMZ off Peru was complemented by a CTD section from 4°S to 2°N along 85°50’W in order to investigate the eastward flowing Equatorial Undercurrent (EUC) which feeds the OMZ in the eastern tropical South Pacific Ocean (ETSP) with oxygen (O2).
Chief scientistHermann W Bange (GEOMAR Helmholtz Centre for Ocean Research, Kiel (West Shore Campus))
ProjectGEOTRACES -Trace elements and their isotopes in the water column
Cruise reportFS Meteor M138 cruise report meteor_m138.pdf (0.13 MB) 
Ocean/sea areas 
GeneralNorth East Pacific Ocean (limit 180W)
South East Pacific Ocean (limit 140W)
Track chartsFS Meteor M138 cruise track — meteor_m138trk.pdf (0.08 MB)