History and timing of human impact on Lake Victoria, East Africa
نویسندگان
چکیده
منابع مشابه
A review of mercury in Lake Victoria, East Africa: implications for human and ecosystem health.
Lake Victoria, East Africa, has been the site of many recent studies measuring mercury (Hg) concentrations in water, fish, sediment, soil, and humans. Most of these studies were motivated by concerns about Hg contamination from processing of gold ore on the southern shores. Total Hg (THg) concentrations in fish were usually below permissible World Health Organization (WHO) concentrations and in...
متن کاملComment on "Origin of the superflock of cichlid fishes from Lake Victoria, East Africa".
Based on an extensive mitochondrial haplotype analysis representing about 900 specimens, we developed a conclusive model for the origin and age of the Lake Victoria (LV) superflock of haplochromine cichlids (1). Our most important findings were that (i) the cichlids were initially derived from Lake Kivu (LK), which contains the genetically most diverse and oldest cichlid lineages of any of the ...
متن کاملPotential Impacts of Climate Change on Precipitation over Lake Victoria, East Africa, in the 21st Century
Precipitation over Lake Victoria in East Africa greatly influences its water balance. Over 30 million people rely on Lake Victoria for food, potable water, hydropower and transport. Projecting precipitation changes over the lake is vital in dealing with climate change impacts. The past and future precipitation over the lake were assessed using 42 model runs obtained from 26 General Circulation ...
متن کاملDetermination of Heavy Metal Content in Water, Sediment and Microalgae from Lake Victoria, East Africa
Lake Victoria, which is the largest fresh water lake in Africa, represents a unique ecosystem that has the largest fresh water fishery in the continent. However, increased anthropogenic activities has increased the potential pollution of the lake especially the heavy metal pollutants which may be toxic to humans and aquatic fauna. There is need therefore for continuous monitoring of pollution l...
متن کاملDistribution of Cr, Pb, Cd, Zn, Fe and Mn in Lake Victoria sediments, east Africa.
The presence of many metals at trace or ultra-trace levels in the human environment has received increased global attention (WHO 1977; Hutton 1982; IRPTC 1984). Surveillance of concentrations of heavy metals in the environment is of global interest since elements like cadmium, lead and mercury are listed as environmenta]ly dangerous chemical substances. Sediments as a sink for pollutants are wi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the Royal Society of London. Series B: Biological Sciences
سال: 2002
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rspb.2001.1850