Titlebook: Lake Kivu; Limnology and biogeo Jean-Pierre Descy,Fran?ois Darchambeau,Martin Schm Book 2012 Springer Science+Business Media B.V. 2012 Afri

危機(jī)

Stratification, Mixing and Transport Processes in Lake Kivu,fluences the top ～65 m. Below, the lake is permanently stratified, with density increasing stepwise from ～998 kg m. at the surface to ～1,002 kg m. at the maximum depth of 485 m. The permanently stratified deep water is divided into two distinctly different zones by a main gradient layer. This gradie

lavish

V洗浴

evaculate

Phytoplankton of Lake Kivu,kton is dominated by cyanobacteria – mainly . spp. and thin filaments of . – and by pennate diatoms, among which . and . are dominant. Seasonal shifts occur, with cyanobacteria developing more in the rainy season, and the diatoms in the dry season. Other groups present are cryptophytes, chrysophytes

cortex

隱藏

Zooplankton of Lake Kivu, period 2003–2004 was 0.99 g C m.. The seasonal dynamics closely followed variations of chlorophyll . concentration and responded well to the dry season phytoplankton peak. The mean annual crustacean production rate was 23 g C m. year.. The mean trophic transfer efficiency between phytoplankton and

有偏見

Fishes in Lake Kivu: Diversity and Fisheries,oduced Tanganyika sardine, .. Lake Kivu is famous, compared to the other African great lakes, for its poor fish fauna, with 29 species comprising a.o. 15 endemic haplochromines and a few non-native species. In a first part devoted to diversity and biogeography, all species are briefly described, wit

護(hù)航艦

PAGAN

隱藏

Lake Kivu Research: Conclusions and Perspectives,e of the sublacustrine springs as a driving force for physical and biogeochemical processes is highlighted, the special properties of the lake’s food web structure are discussed, and the consequences and impacts of both the introduction of a new fish species and methane extraction are evaluated. Fin