Oligotrophs

Perry, M. J. (1976). Phosphate utilization by an oceanic diatom in phosphorus-limited chemostat culture and in the oligotrophic waters of the central North Pacific. Limnol. Oceanogr. 21,88-107. 

Karl, D. M. and Yanagi, K. (1997). Partial characterization of the dissolved organic phosphorus pool in the oligotrophic North Pacific Ocean. Limnol. Oceanogr. 42,1398-1405. 

Guasch H, Paulsson M, Sabater S (2002) Effect of copper on algal communities from oligotrophic calcareous streams. J Phycol 38 241... 

There is an indeterminacy in the term oligotroph, and the dilemma is exacerbated by the fact that it may be impossible to isolate obligate oligotrophs by established procedures. The application of DNA probes should, however, contribute to an understanding of the role of these noncultivable organisms. Oligotrophic bacteria in the marine environment are able to utilize low substrate concentrations, and they may be important in pristine environments. 

Kamagata Y, RR Fulthorpe, K Tamura, H Takami, LJ Forney, JM Tiedje (1997) Pristine environments harbor a new group of oligotrophic 2,4-dichlorophenoxyacetic acid-degrading bacteria. Appl Environ Microbiol 63 2266-2272. 

Martin P, RA MacLeod (1984) Observations on the distinction between oligotrophic and eutrophic marine bacteria. Appl Environ Microbiol 47 1017-1022. 

Hendricks B, and 11 coauthors (2005) Dynamics of an oligotrophic bacterial aquifer community during contact with a groundwater plume contaminated with benzene, toluene, ethylbenzene, and xylenes an in situ mesocosm study. Appl Environ Microbiol 71 3815-3823. 

Kitagawa W, S Takami, K Miyauchi, E Masai, Y Kamagata, JM Tiedje, M Fukuda (2002) Novel 2,4-dichlo-rophenoxyacetic acid degradation genes from oligotrophic Bradyrhizobium sp. strain HW 13 isolated from a pristine environment. J Bacterial 184 509-518. 

Kainz M, Lucotte M, Parrish CC. 2003. Relationships between organic matter composition and methylmercury content of offshore and carbon-rich littoral sediments in an oligotrophic lake. Can J Fish Aquat Sci 6 888-896. 

Orlandini KA, Penrose WR, Harvey BR, et al. 1990. Colloidal behavior of actinides in an oligotrophic lake. Environ Sci Technol 24(5) 706-712. 

The non point source loading rates (NPSLDG) for an Eutrophic Lake or an Oligotrophic Lake can be similarly calculated using the Reinert - (3) Approach. 

The data in Table V indicate that runoff of CGA-72662 from 12 applications would result in extremely low concentrations of CGA-72662 in ponds and lakes. The water column in all cases would contain all of the chemical, the sediment little or no CGA-72662. It follows from these data that exposure of CGA-72662 to aquatic organisms would be low. The data in Table V also shows that CGA-72662 would be persistent only in eutrophic lake environments. After the load is removed, the half-life of CGA-72662 in ponds, eutrophic lakes and oligotrophic lakes was 13, 62, and 5 days respectively. Self purification times were 9, 12, and 3 months respectively. 

Species (ppm) Pond Eutrophic Lake Oligotrophic Lake... 

Oligotroph an organism with optimal growth in nutrient-limited conditions. 

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