Titlebook: Nutrient Dynamics and Biological Structure in Shallow Freshwater and Brackish Lakes; E. Mortensen,E. Jeppesen,L. Kamp Nielsen Book 1994 Sp

完成才能戰(zhàn)勝

Does the impact of nutrients on the biological structure and function of brackish and freshwater laknkton, mysid and macrophyte populations was undertaken in 20–36 shallow brackish lakes of various trophic states and the findings compared with a similar analysis of shallow freshwater lakes based on either sampling (fish) or existing data (zooplankton, mysids and macrophytes). Special emphasis was

FLOUR

昏迷狀態(tài)

Nmda-Receptor

Top-down control of phytoplankton in a shallow hypertrophic lake: Little Mere (England)re the effects of sewage effluent caused such a reduction. This allowed the large-bodied cladoceran, . Straus, to develop huge populations, preventing potentially large algal crops from developing..Subsequent diversion of the effluent is anticipated to lead to recovery of the fish community, reduced

STANT

ADORE

Long-term compositional response of phytoplankton in a shallow, turbid environment, Neusiedlersee (Alake underwent strong eutrophication during this period. The response of annual average phytoplankton biomass and chlorophyll-. to the increase of phosphorus concentration from 10 to > 100 μg 1. was moderate (7-fold increase). This is caused by light limitation of the system because of the high inor

jaundiced

The time course of phytoplankton biomass and related limnological factors in shallow and deep lakes: Madrid (Spain). Data were collected on abiotic factors, primary production, biomass and phytoplankton losses and subjected to reduction by means of several principal component analyses. Furthermore, weekly data on the same variables were gathered from published studies on überlinger See, an embayme

Rheumatologist

完成才會(huì)征服

一再遛

Polymixis of a shallow lake (Gro?er Müggelsee, Berlin) and its influence on seasonal phytoplankton duration of oxygen at the deepest site of the lake (7.5 m). Mixing and stratification changed irregularly up to 7 times during the vegetation season (April to September), as was indicated by all of the stratification parameters. Thermally stable conditions generally lasted 1–2 weeks. A maximum of 5 w