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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
Submitted: January 27, 2012
Accepted: March 02, 2012
Published: July 10, 2012 |
Abstract:
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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.
Key words: Closed basin lake, limnochemistry, lake hashengie, phytoplankton, tigray region, ,
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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, . 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): 401-406.
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ISSN (Online): 2041-0778
ISSN (Print): 2041-076X |
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