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detritus
Representatives of gamasid (three species) and uropodid (two species) mites abundant in storm detritus were used as model species.
      
Unbalanced composition of higher trophic levels results in an unstable functioning of the lake and accumulation of significant amounts of detritus, which is utilized by the abundant microzoobenthic component of the ecosystem.
      
As against zooplankton, the biomass of zoobenthos features much less contingencies with the biomass of microalgae as well as zooplankton, since detritus, higher plant tissues, and small animals are the basis of the diet of benthic organisms.
      
Specific structural features of giant fishbone detritus accumulations, which represent organic phosphate deposits with uranium and rare earth elements, are scrutinized.
      
The obtained results have made it possible to reconstruct paleotectonic and paleogeographic conditions of the formation of orebodies, as well as the mechanism for the accumulation of metalliferous bone detritus.
      
It includes unique sediments composed of fish bone detritus (FBD) and iron sulfides with high contents of REE, U, Sc, Re, Ni, Co, Mo, and other elements.
      
The outer shelf zone with islands and shoals includes metalliferous fish bone detritus and iron sulfide deposits.
      
The structure of bone detritus and iron sulfide deposits is scrutinized based on the abundant analytical data on their component composition and metal potential.
      
It is shown that maximal concentrations of bone detritus and iron sulfides are usually spatially separated.
      
The metal potential of bone detritus does not depend on sulfides.
      
Phosphate matter in the relatively deepwater deposits usually characterized by a lower content of bone detritus has the highest metal content.
      
Deposits formed in the relatively shallow-water settings are characterized by a higher concentration of bone detritus and lower metal content.
      
Microorganisms and organic detritus served as intermediate collectors of gold delivered with the continental runoff from provenances of the East European Platform.
      
Prior to precipitation on the seafloor together with the biogenic detritus, the dissolved phosphorus could repeatedly be involved in the biogeochemical cycle.
      
Comparison of the planktonic copepod ration with phytoplankton production shows that the energy demands of the copepod community are met by consumption of phytoplankton and, probably, also bacterioplankton and detritus.
      
The concentrations of active bacteria and their detritus are determined.
      
Calculated variations in the concentrations of biogenic substances and detritus, microorganism biomasses, characteristics of their activity (specific growth rates and biomass turnover times) within a year are presented and discussed.
      
Model development - nutrients, plants, and detritus
      
Electrophoresis and size-exclusion chromatography of humic substances extracted from detritus and soils of different geneses
      
The isotope composition of the carbon in dissolved carbonates formed by OM mineralization is distinct from the composition of plankton and organic detritus, being enriched in 13C by 4-7‰.
      
 

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