Mesotrophic

Dungait, J. A. J., Docherty, G. and Evershed, R. P. (2008) Interspecific variation in bulk tissue, fatty acid and monosaccharide 813C values of leaves from mesotrophic grassland species. Phytochemistry 69, 2041 2051. 

The residence time is very low, less than 1 month [36], and it can even attain 5 days during high flows [38]. The trophic state of the reservoir can change from year to year, from mesotrophic conditions [36, 40] to eutrophic ones [38, 39]. 

Mesotrophic grassland, Negative (not Soil extractable P Aerts et al. 

Table 28.14 Estimated Residence Times for Some Halogenated Hydrocarbons in the Euphotic Zone of Oligotrophic, Mesotrophic, and Eutrophic Waters. ...

Mesotrophic Seawater that has biological productivity intermediate between that of eutrophic and oUgotrophic areas. 

During the summer, somebody measures how much light coming into a small mesotrophic lake is absorbed in the water column as a function of depth. He gets the following results ... 

Sampling. Water and sediments were sampled at the greatest depths of two mountain mesotrophic lakes in Nagano Prefecture, Lakes Kizaki-ko and Nakatsuna-ko. Sampling of the core sediments was made by using a core sampler devised by the author. 

Sample Collection. Pelagic lake-water samples were collected at Crystal Lake, an engineered mesotrophic lake in Champaign County, Illinois. It has an average depth of 10 feet with a maximum depth of 13 feet and is fed by ground-water from a 200-foot-deep well. For each sample 250-500 L of water was filtered with a plankton net and stored in 55-L polyethylene (Nalgene) containers until processed in the laboratory approximately 30 min later. 

Bunte, C., and M. Simon. 1999. Bacterioplankton turnover of dissolved free monosaccharides in a mesotrophic lake. Limnology and Oceanography 44 1862-1870. 

Simon, M. 1998. Bacterioplankton dynamics in a large mesotrophic lake. II. concentrations and turnover of dissolved amino acids. Archiv fiir Hydrobiologie 144 1—23. 

Schweitzer, B., and M. Simon. 1995. Growth limitation of planktonic bacteria in a large mesotrophic lake. Microbial Ecology 30 89—104. 

Mesotrophic water. A water basin with a moderate amount of nutrients (0.3mgN L 1-0.65mgN- L 1 0.01 mgPL 1 0.03 mgP L ) and middling biological productivity. 

Mesotrophic intermediate between oligotrophic (low nutrient) and eutrophic (high nutrient) systems. 

In the development of the populations of planktonic and bottom algae one can trace the seasonal dynamics of the phytocoenosis represented by the alternation of the dominating species and by the changes in their abundance and biomass. In the years different with respect to the climatic conditions, the species composition as well as the dynamics of the abundance and production of algae strongly varies. With respect to the level of the primary production, the Black Sea ecosystem may be referred to as a mesotrophic-type of marine basin. In mesotrophic waters, the phytoplankton consumption by zooplankton, which represents an important food object for fish with short lifecycles, proceeds more intensively than in oligotrophic waters. The coefficient of matter transfer from the primary production to the higher trophic levels is about... 

Ratter and coworkers placed due emphasis on the influence of high calcium levels in the soil on the cerrado vegetation when they concluded that the floristic composition and phytosociological parameters of cerradoes and cerrados on more fertile soils can be quite different from those on dystrophic soils (Ratter 1971, 1992, Ratter et al. 1977, 1978). Many species occur only on dystrophic soils, others only on mesotrophic soils. Even when species indifferent to soil fertility occur in different communities their relative importance can vary to a great extent (Araujo and Haridasan 1988). Nutritional adaptations of such species and communities have received very little attention for any useful discussion at a community or ecosystem level (Haridasan 1992). 

Araiijo, G. M., and M. Haridasan. 1988. A comparison of the nutrient status of two forests on dystrophic and mesotrophic soils in the cerrado region of central Brazil. Communications in Soil Science and Plant Analysis... 

Observations on the forests of some mesotrophic soils in central Brazil. Revta brasil Bot 1 47-58... 

Mesotrophic N Tropical Pacific Winter Euphotic zone WW 0.04-0.26 0.6-3.4 Wilkerson and Dugdale,... 

Holfeld, H. (1998). Fungal infections of the phytoplankton Seasonality, minimal host density, and specificity in a mesotrophic lake. New Phytol. 138, 507—517. 

Le Borgne, R., and Rodier, M. (1997). Net zooplankton and the biological pump A comparison between the ohgotrophic and mesotrophic equatorial Pacific. Deep Sea Res. 1144, 2003—2023. 

---