Downward mass fluxes of major biogenic constituents

*DATASET-NAME : Mass fluxes of particulate organic carbon and nitrogen, in the Adriatic, Otranto Strait Sea and Ionian Sea.

*TIME-PERIOD : 1997 to present

*GEOGRAPHIC COVERAGE : Southern Adriatic Sea, Otranto Strait and Northern Ionian Sea

*PROJECT : MASTIII/MTPII/MATER, MAss Transfer and Ecosystem Response

*PARAMETERS : Total mass flux, particulate organic carbon and particulate nitrogen measurements, on samples collected by sediment traps located below the euphotic layer and 150 m above the bottom.

*INSTRUMENTS : Sediment Traps Technicap mod. PPS 4/3, PPS3/3 and PPS5/2. Organic Carbon and Nitrogen were analysed by a Perkin-Elmer CHN 2400 elemental analyser. Grain size was determined by a Coulter Counter mod TA II.

*SUMMARY : Data were collected within the framework of multidisciplinary studies aimed at investigating the physical, chemical and biological characteristics of the Adriatic/Ionian basin.

To determine the vertical fluxes, sediment traps coupled with current meters were used. The sampling period was 15 days. The collecting bottles were filled with a preservative formaline solution.
Aliquots of samples were filtered on fiber glass filters to determine the total mass(dry weight), total and organic carbon and total nitrogen. Particle size analyses were carried out by means of a Model TA II Coulter Counter adopting the two-tubes technique (50 and 280 Ám) to cover a wider range. The observed size ranged from 1 to 100 Ám.

*REFERENCE :

*CENTRE :
OSSERVATORIO GEOFISICO SPERIMENTALE
Department of Oceanology
PO BOX 2011
IT-34016 TRIESTE
Italy
tel : +39 40 21401

*STORAGE-MEDIUM : Hard disk.

*AVAILABILITY : OGS, Osservatorio Geofisico Sperimentale, charged as Regional Data Center for the Adriatic/Ionian Basin. Data availability is submitted to the originator permission

*COMPLETED-BY : Alfredo Boldrin IBM (Italy) - Stefano Miserocchi IGM (Italy)

*ENTRY-DATE : 1998-05-27

Available Data Set(s) Processing Level
I1_114 - Downward mass fluxes from sediment traps IN VALIDATION
I1_2250 - Downward mass fluxes from sediment traps IN VALIDATION
A1_150 - Downward mass fluxes from sediment traps IN VALIDATION
A1_1070 - Downward mass fluxes from sediment traps IN VALIDATION
O2_150 - Downward mass fluxes from sediment traps IN VALIDATION
O2_700 - Downward mass fluxes from sediment traps IN VALIDATION


Last update 11/01/2001

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