International Journal of Fisheries and Aquatic Studies
2016, Vol. 4, Issue 3, Part B
Natural diets and length-weight relationship of Brycinus macrolepidotus in lower Ogun River, Akomoje, Ogun stateAuthor(s):
Adeosun FI, Amrevuawho MO, Owolabi SA, Abdul WO, Odulate DO, Idowu AAAbstract:
The natural diets and length-weight relationship of Brycinus macrolepidotus in Lower Ogun River, Nigeria was studied. 124 fish samples were collected twice monthly from February-August, 2015 from catches landed by artisanal fishermen using cast nets and long line. The total length and total body weight of all fish captured were measured and then grouped into sizes. Length-weight relationship was determined using the formular W = aLb. Gut contents were determined using the frequency of occurrence and numerical method. Index of fullness was also determined. Result of stomach content suggests omnivorous feed habit as diet were of plant and animal materials. Stomach fullness was higher during the dry season and onset of the rains than at the peak of the rains. Mean total length and weight of specimens varied from 18.19 ± 1.59 cm and 71.21 ± 15.54 g (juveniles), 34.99 ± 2.80 cm and 142.25 ±34.05 g (sub-adults) and 24.45 ± 2.53 cm and 301.46±22.67 g (adults) respectively. Length-weight analyses showed negative allometry for all sizes (b<3) and ‘r’ values 0.8252 to 0.9963. The study contributes to documented facts about the species from water bodies with a view of developing its aquaculture.Pages: 139-143 | 929 Views 25 DownloadsDownload Full Article:
How to cite this article:
Adeosun FI, Amrevuawho MO, Owolabi SA, Abdul WO, Odulate DO, Idowu AA. Natural diets and length-weight relationship of Brycinus macrolepidotus in lower Ogun River, Akomoje, Ogun state. International Journal of Fisheries and Aquatic Studies. 2016; 4(3): 139-143.