Central North Pacific Ocean

CARROLL (D.), 1969. Chlorite in central north Pacific ocean sediments. 

Williams, P. M., and E. R. M. Druffel. 1987. Radiocarbon in dissolved organic matter in the central north Pacific Ocean. Nature 330 246—248. 

Jeffrey, S.W. (1976b) A report on green algal pigments in the central North Pacific Ocean. Mar. Biol. 37, 33-37. 

Figure 3-8 (A) Deviations in 5 C values (%o) for amino acids in HMWDOM from amino acids in sinking POM (5 C-AAhmwdom 5 C-AApom) isolated from several depths in the central North Pacific Ocean (adapted from McCarthy et ah, 2004 only surface POM data from 2°N are used here). Note that we assumed a value of —23.9 for lie not 23.9 (as shown in Table 3.1 of that paper). (B) Depthprofilesof5 CHMWDOM 5l3CpoM for various amino acids.

In the Central North Pacific Ocean (CNPO) it has also been reported that phosphorus availabiHty limits N2 fixation and primary production (Karl et al, 2001 a,b) (but iron availability may also play a role as suggested by Wu et al (2000). Karl et al (2001a,b) contend that since the mid 1970s there has been an enhanced stratification in the CNPO and a decreased inorganic nutrient avadabihty which selects for diazotrophs and shifts from a N-hmited phytoplankton population to one that is either P or Fe Hmited (see Karl et al. Chapter 16, this volume). 

Mague, T. H., Mague, F. C., and Hokn-Hansen, O. (1977). Physiology and chemical composition of nitrogen-fixing phytoplankton in the central north Pacific ocean. Mar. Biol. 41, 212—227. 

Campbell, L., NoUa, H. A., and Vaulot, D. (1994). The importance of Prochlorococcus to community structure in the central North Pacific Ocean. Limnol. Oceanogr. 39, 955—961. 

As an alternative to partial assimilatory NOs reduction by phytoplankton, oxidation of NH4+ by Bacteria and Archaea (the first step in the 2-step process of nitrification) can produce N02 as an intermediate product. Nitrifying bacteria were first isolated from the marine environment by Watson (1965) and are now known to be ubiquitous in the global ocean. Wada and Hattori (1971) used a sensitive chemical assay to measure changes in N02 in incubated samples, to conclude that NH4+ was the major source of N02 in the PNM in the central North Pacific Ocean. Miyazaki et al. (1973, 1975), using a N tracer method, found that, in Sagami Bay and in the western North Pacific, NH4+ and NOs were both important sources ofN02. ... 

Perry M. J. and Eppley R. W. (1981) Phosphate uptake by phytoplankton in the central North Pacific Ocean. Deep-Sea Res. 28, 39-49. 

Donat, J. R., Statham, P. J., and Bruland, K. W. (1986) An Evaluation of a C-18 Solid Phase Extraction Technique for Isolating Metal-Organic Complexes from Central North Pacific Ocean Waters, Mar. Chem. 18, 85-99. 

Segl, M., Mangini, A., Bonani, G, Hofmann, H.J., Nessi, M., Suter, M., Wolfli, W., Friedrich, G, Pluger, W.L., Wiechowski, A. and Beer, J., 1984. °Be-dating of a manganese crust from the central North Pacific Ocean and implications for ocean palaeocirculation. Nature, 309 540-543. 

Donat JR, Statham PJ, and Bruland KW (1986) An evaluation of a C-18 solid phase extraction technique for isolating metal-organic complexes from central North Pacific Ocean waters. Marine Chemistry 18 ... 

Schlanger S. O., Douglas R. G., Lancelot Y., Moore T. C. and Roth P. H. (1973) Fossil preservation and diagenesis of pelagic carbonates from the Magellan Rise, central North Pacific Ocean. Initial Reports of the Deep Sea Drilling Project 17, 407-427. 

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