Ocean particulates

Karl D. M. and Tilbrook B. D. (1994) Production and transport of methane in oceanic particulate matter. Nature 368, 732-743. 

Bishop J. K. B. (1988) The barite-opal-organic carbon association in oceanic particulate matter. Nature 332, 341-343. 

A Multiple-Unit Large-Volume In Situ Filtration System for Sampling Oceanic Particulate Matter in Mesoscale Environments... 

Interpretation of the ETS Measurement Conversion of Oxygen Consumption. The measurement of ETS activity in oceanic particulate mat-... 

Phosphorus distribution in sinking oceanic particulate matter. Mar. Chem., in press. 

Bishop, J.K.B., 1977. The Chemistry, Biology and Vertical Flux of Oceanic Particulate Matter. Thesis, Joint Program in Oceanography, M.I.T./W.H.O.L, Woods Hole, Mass., 291 pp. 

Compared to the extensive data describing the ocean particulate (10, 11), size distribution data on particulates in fresh water systems and wastewaters are relatively scarce. Particle size distribution data for several low ionic strength solutions are shown in Figure 1 with the water source, particulate counting method, and references as noted. The size frequency distribution of the four heterogeneous suspensions shown can be modeled by a two-parameter power-law distribution function (2) given by the expression... 

Table II. Values of the power-law coeflBcient p for these suspensions ranged from 1.8 to 4.5. Data on the ocean particulates indicate values of P between 4 and 5 (10,21,22,23).

A subject of increasing importance has been the composition of oceanic particulate matter and the sediments derived from it. While the concentrations of organic carbon and nitrogen are much lower per unit volume than in the dissolved phase, the ability to concentrate the particle load by some form of filtration or centrifugation should result in the production of samples within the range of commercial CHN analyzers. Accordingly, we would expect a better performance from laboratories in an intercomparison test for particulate organic... 

Sherrell RM. The Trace Metal Geochemistry of Suspended Oceanic Particulate Matter. PhD thesis, Massachusetts Institute of Technology/Woods Hole Oceanographic Institution Joint Program, Cambridge, 1989. 

Filtration of the samples can be done with any of the pressure or vacuum systems in common use (see Chapter 2). The filtering apparatus should be cleaned thoroughly by acid washing (see Section 12.1.4). Membrane filters release no detectable arsenic species, but should be rinsed by passing a small amount of the sample through them. Glass fibre filters may contain soluble arsenate or arsenite and should not be used. In general, filtration is not required, because oceanic particulates contain few soluble arsenic species that would be detectable with this method. 

---