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THE ENERGY BASE OF AQUATIC SYSTEMS IN SOUTH AFRICA
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: B.R. Allanson --- Institute for Freshwater Studies, Department of Zoology, and Entomology, South AfricaThe energy base of reservoirs and lakes is examined. There is considerable variation in specific productivity and photosynthetic capacity depending on trophic condition and whether algae or suspensoids reduced transparency. While limnetic production is important in freshwater, it is not... -
ASPECTS OF COMPARATIVE PLANKTON ECOLOGY IN CASCADING MGENI RIVER RESERVOIRS (MIDMAR, ALBERT FALLS, AND NAGLE): AN OVERVIEW
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: R.C. Hart --- Department of Zoology & Entomology, South AfricaAn overview of a three year study of abundance, community structure and succession of zooplankton and phytoplankton in relation to physical limnological conditions in Lakes Midmar and Albert Falls is presented, along with findings on zooplankton from a nine month... -
A COMPARISON OF CYPRINID FISH POPULATIONS IN THREE LARGE TRANSKEI RESERVOIRS WITH RESPECT TO ABUNDANCE AND REPRODUCTION
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: M. Schramm --- Zoology Department, South AfricaGill net catches of fish in three turbid reservoirs (Lakes Xonxa and Lubisi on the Kei River system and Lake Umtata on the Mtata River) between 1982 and 1985 were dominated by two cyprinids the common carp, Cyprinus carpio, and... -
Beacons in the limnological landscape
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: BR AllansonAn overview is given of a number of major developments in the limnology of South Africa, Zimbabwe and Namibia. None was possible without the involvement of enthusiastic investigators who, over some 70 years, stimulated the growth of freshwater research in... -
Effect of an impoundment on nutrient dynamics in the Kihansi River, Tanzania
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RJ Ideva J Machiwa F Schiemer T HeinThe impact of the Kihansi Dam on electrical conductivity, pH, temperature and dissolved oxygen in the Kihansi River was assessed in 2005 after 85% of the original river flow had been diverted to the Lower Kihansi power plant. The results... -
Occurrence of Tetracampos ciliotheca (Cestoda: Bothriocephalidea) in the gall bladder of Clarias anguillaris in Burkina Faso
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Y Sinaré --- Laboratoire de Biologie et Ecologie Animales, Département de Biologie et Physiologie Animales, Burkina Faso M Boungou --- Laboratoire de Biologie et Ecologie Animales, Département de Biologie et Physiologie Animales, Burkina Faso A Ouéda --- Laboratoire de Biologie et Ecologie Animales, Département de Biologie et Physiologie Animales, Burkina Faso K Mano --- Laboratoire de Biologie et Ecologie Animales, Département de Biologie et Physiologie Animales, Burkina Faso WN Kpoda --- Laboratoire de Biologie et Ecologie Animales, Département de Biologie et Physiologie Animales, Burkina Faso NG Sakiti --- Département de Zoologie, Benin GB Kabré --- Laboratoire de Biologie et Ecologie Animales, Département de Biologie et Physiologie Animales, Burkina FasoThe presence of the bothriocephalidean cestode Tetracampos ciliotheca Wedl, 1861 is reported from the gall bladders of the catfish Clarias anguillaris from Loumbila and Ziga reservoirs, Burkina Faso, in 2010–2011. Of the 159 specimens examined, 47 were infected. Mean intensity...