International Journal of Fisheries and Aquatic Studies
2015, Vol. 3, Issue 2, Part B
Some biological aspects of spawning migratory Labeobarbus species in some tributary rivers of Lake Tana, EthiopiaAuthor(s):
Gizachew Teshome, Abebe Getahun, Minwyelet Mengist, Biniyam HailuAbstract:
Some biological aspect of spawning migratory Labeobarbus species in small tributary rivers of Lake Tajjna (Qimon, Guanta, Shini and Chibirna) Rivers were studied starting from August 2013 to December 2013. Fish were collected bimonthly using 6 and 8 cm monofilament gillnets and 6, 8, 10 and 12 cm mesh size poly filament gillnets. A total of 933 adult Labeobarbus specimens were collected within five sampling months at all sampling rivers. Descriptive statistics was used to present the data. One way ANOVA was used to analyze the Fulton condition factor of fishes. Length–weight relationship of the dominant Labeobarbus species (L. intermedius, L. brevicephalus and L. nedgia) showed statistically significant curvilinear relationships. Fulton condition factor for L. brevicephalus showed significant difference among four rivers (P<0.05) and L. intermedius showed non-significant difference. Fulton’s condition factor of L. intermedius showed significant difference between sexes (P<0.001) and time of spawning (P<0.01). The present findings showed that the unique Lake Tana Labeobarbus species flock reproductive and productive performance were determined by development activities that are taken from each tributary rivers and streams like sand mining and irrigation activities. Finally this crucial problem should be taken appropriate mitigation measures in order to create sustainable development.Pages: 136-141 | 791 Views 14 DownloadsDownload Full Article:
How to cite this article:
Gizachew Teshome, Abebe Getahun, Minwyelet Mengist, Biniyam Hailu. Some biological aspects of spawning migratory Labeobarbus species in some tributary rivers of Lake Tana, Ethiopia. International Journal of Fisheries and Aquatic Studies. 2015; 3(2): 136-141.