Marine organic realm

Resolution of the anomalies between our analytical results and others led us to the postulate that these slope sediments contained organic matter which had not only been deposited in the marine organic realm but had also originated there. (Most previous analyses reported in the literature were on organic matter either from the terrestrial organic realm or from zones where there was admixing.)... 

Tremendous progress has been made in the past several decades in the realm of marine nitrogen (N2) fixation. The spectrum of organisms recognized to contribute to N2 fixation in the sea has been greatly expanded, and there has been a virtual revolution... 

The benthic realm is an especially rich environment for living organisms. Scientists now believe that up to 98% of all marine species (not individuals, but species) are found in or near the ocean floor. Some of these are fish or shellfish swimming just above the ocean floor, but most are organisms that burrow in the sand or mud, bore into or are attached to rocks, live in shells, or simply move about on the ocean floor. 

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