Yıl 2017, Cilt 3, Sayı 1, Sayfalar 1 - 13 2017-04-24

Limnochemistry and Biological Characteristics of Small High Altitude Reservoirs in a Sub-Tropical Region, Nyanga, Zimbabwe

Tamuka NHIWATIWA [1]

299 432

The ecological characteristics of ten small reservoirs in the high-altitude Eastern Highlands region of Zimbabwe, were studied. Water quality and sediment quality for a range of parameters and also the phytoplankton, zooplankton, macrophyte communities were described. The water quality of the reservoirs was in near pristine condition and their trophic status was oligotrophic and ultra-oligotrophic. In contrast, the sediments especially of the Connemara reservoirs had unusually high levels of phosphorus. Given the high levels of dissolved oxygen in the reservoirs, most phosphorus is likely to be bound to the sediment but its present source was not immediately clear. Phytoplankton densities were very low indicative of low productivity. The major phytoplankton taxa identified included Cyanophyta, Euglenophyta, Chrysophyta, Bacillariophyceae, Pyrrophyta and Chlorophyta. The least abundant taxa were the Euglenophyta while the most abundant was the Chlorophyta. Zooplankton taxa comprised of Daphniidae, Chydoridae, Bosminidae, Sididae, Macrothricidae, Cyclopoida and Calanoida. The daphniids were the most abundant species, while the rotifers were not identified further in this study. Several macrophyte species were identified but the reservoirs showed low similarity in macrophytes composition. There were no clear environmental gradients to explain the patterns. The results of this study provide an important baseline from which future studies especially on the impact of climate change and landuse can be assessed.

Small Dams, Montane, Limnology, Phytoplankton, Zooplankton
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Konular Fen
Yayımlanma Tarihi 2017
Dergi Bölümü Araştırma Makalesi
Yazarlar

Yazar: Tamuka NHIWATIWA
Kurum: University of Zimbabwe Department of Biological Sciences
Ülke: Zimbabwe


Bibtex @araştırma makalesi { limnofish288101, journal = {Journal of Limnology and Freshwater Fisheries Research}, issn = {}, eissn = {2149-4428}, address = {Su Ürünleri Araştırma Enstitüsü}, year = {2017}, volume = {3}, pages = {1 - 13}, doi = {10.17216/limnofish.288101}, title = {Limnochemistry and Biological Characteristics of Small High Altitude Reservoirs in a Sub-Tropical Region, Nyanga, Zimbabwe}, key = {cite}, author = {NHIWATIWA, Tamuka} }
APA NHIWATIWA, T . (2017). Limnochemistry and Biological Characteristics of Small High Altitude Reservoirs in a Sub-Tropical Region, Nyanga, Zimbabwe. Journal of Limnology and Freshwater Fisheries Research, 3 (1), 1-13. DOI: 10.17216/limnofish.288101
MLA NHIWATIWA, T . "Limnochemistry and Biological Characteristics of Small High Altitude Reservoirs in a Sub-Tropical Region, Nyanga, Zimbabwe". Journal of Limnology and Freshwater Fisheries Research 3 (2017): 1-13 <http://www.limnofish.org/issue/28724/288101>
Chicago NHIWATIWA, T . "Limnochemistry and Biological Characteristics of Small High Altitude Reservoirs in a Sub-Tropical Region, Nyanga, Zimbabwe". Journal of Limnology and Freshwater Fisheries Research 3 (2017): 1-13
RIS TY - JOUR T1 - Limnochemistry and Biological Characteristics of Small High Altitude Reservoirs in a Sub-Tropical Region, Nyanga, Zimbabwe AU - Tamuka NHIWATIWA Y1 - 2017 PY - 2017 N1 - doi: 10.17216/limnofish.288101 DO - 10.17216/limnofish.288101 T2 - Journal of Limnology and Freshwater Fisheries Research JF - Journal JO - JOR SP - 1 EP - 13 VL - 3 IS - 1 SN - -2149-4428 M3 - doi: 10.17216/limnofish.288101 UR - http://dx.doi.org/10.17216/limnofish.288101 Y2 - 2017 ER -
EndNote %0 Journal of Limnology and Freshwater Fisheries Research Limnochemistry and Biological Characteristics of Small High Altitude Reservoirs in a Sub-Tropical Region, Nyanga, Zimbabwe %A Tamuka NHIWATIWA %T Limnochemistry and Biological Characteristics of Small High Altitude Reservoirs in a Sub-Tropical Region, Nyanga, Zimbabwe %D 2017 %J Journal of Limnology and Freshwater Fisheries Research %P -2149-4428 %V 3 %N 1 %R doi: 10.17216/limnofish.288101 %U 10.17216/limnofish.288101
ISNAD NHIWATIWA, Tamuka . "Limnochemistry and Biological Characteristics of Small High Altitude Reservoirs in a Sub-Tropical Region, Nyanga, Zimbabwe". Journal of Limnology and Freshwater Fisheries Research 3 / 1 (Nisan 2017): 1-13. http://dx.doi.org/10.17216/limnofish.288101