Comparisons of trophic state measurements

Trophic state and water turn-over time in six choked coastal lagoons in Brazil

“…Such studies are useful in establishing monitoring needs, represent a first step in developing management policies, and form the basis for modeling of environmental eutrophication. Of the many available methods used for TS-ranking (Carlsson 1977;Lambou et al 1983), we apply the simplest method, utilizing total phosphorus and chlorophyll-a, according to the ranking system (Rast & Holland 1988). However, it must be borne in mind that most of the concepts and standards have been developed for lakes and reservoirs, and their transfer to coastal lagoons may be problematic.…”

Suspended matter and nutrient gradients of a small-scale river plume in Sepetiba Bay, SE-Brazil

“…Chlorophyll a concentrations increased at the outer premises of the plume, suggesting that the short residence times and light limitation due to turbidity of the inner to mid-plume waters, hampered primary production nearshore, particularly during the "wet" January occasion. In accordance to the trophic state indexes of Lambou et al (1983), Chlorophyll a at the outer plume indicated mesotrophic conditions and the nutrient assemblages at the fresh water sources hypertrophic conditions. Sources and sinks along the estuarine mixing zone The horizontal dispersal patterns described, revealed a great deal of patchiness of the physical and chemical constituents throughout the plumes.…”

Eutrophication of Freshwaters

“…In a more extensive comparison, Lambou et al (1983) compared twenty nine trophic state indices, including Carlson's regressions, phosphorus loading models, algal assay techniques and the range of phytoplankton indices, in forty-four lakes. They tested their ability to rank the lakes in trophic state against rankings by measured total phosphorus and chlorophyll.…”