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2012 (Vol. 4, Issue: 4)
Article Information:

Investigating the Opportunities for Enhancing Freshwater Fish Production to Integrating Aquaculture and Fisheries into Rural Development in Inland Areas: (A Case Study in Small Reservoirs in Mekelle Vicinity and Lake Hashengie of Tigray, Northern Eth

Tsegazeabe H. Haileselasie, Mekonen Teferi, Tadesse Dejenie, Kiros Welegerima, Gebru E. Gebremichael, Solomon A. Hiluf, Tsegaluel Abay, Solomon Tesfay, Kokob Girmay and Dawit Kidane
Corresponding Author:  Tsegazeabe Hadush Haileselasie 

Key words:  Closed basin lake, limnochemistry, lake hashengie, phytoplankton, tigray region, ,
Vol. 4 , (4): 401-406
Submitted Accepted Published
January 27, 2012 March 02, 2012 July 10, 2012
Abstract:

Phytoplankton community and limnochemistry of Lake Hashengie, a closed basin, lake situated at about 2100 m a.s.l. in Southern zone of Tigray regional state (Ethiopia), were investigated from September 2010 to early June 2011 and the fish potential yield was calculated using different models and its production potential was compared to small reservoirs constructed in two past two decades. The aim of this research was to investigate morpho-edaphic parameters and from primary production for the small reservoirs under study and the lake Hashengie. From our study we found that Family wise, Baciliariophycea, chrysophycea and cyanophycea are dominant family in Lake Hashengie with 27, 32.40 and 21.6% of representation. However the family cynaophyceae are not represented in water samples from the reservoirs. On the other hand family chrysophyceae are the least represented family in Lake Hashengie. A Comparison of Chlorophyll a between Lake Hashngie and two reservoirs (Mai-Gassa and Shelanat) indicates that there is high productivity in MaiGassa (22.04 :g chl.a/L) followed by Hashengie (2.67 :g chl-a/L) and Shelanat (1.21e-3 :g chl-a/L). The potential fish yield calculated form phytoplankton primary production (where PG is given in g O2/m2/year using the equation log10Y = 0.95+0.00034 PG has give a significantly different values with Primary production (0.02 g O2/m2/year) Hashengie giving a Yield of kg/ha 60.80678 and Primary production (0.07 g O2/m2/year) Maigassa giving a Yield kg/ha20.29589 Thus, it is concluded that there is a lot of potential for further fisheries development in different water bodies of Tigray.
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  Cite this Reference:
Tsegazeabe H. Haileselasie, Mekonen Teferi, Tadesse Dejenie, Kiros Welegerima, Gebru E. Gebremichael, Solomon A. Hiluf, Tsegaluel Abay, Solomon Tesfay, Kokob Girmay and Dawit Kidane, 2012. Investigating the Opportunities for Enhancing Freshwater Fish Production to Integrating Aquaculture and Fisheries into Rural Development in Inland Areas: (A Case Study in Small Reservoirs in Mekelle Vicinity and Lake Hashengie of Tigray, Northern Eth.  Current Research Journal of Biological Sciences, 4(4): 401-406.
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ISSN (Online):  2041-0778
ISSN (Print):   2041-076X
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