International Journal of Fisheries and Aquatic Studies
2016, Vol. 4, Issue 1, Part D
Diversity and abundance of Synodontis (Cuvier, 1816) species in the lower river Benue, Makurdi, Benue state, Nigeria
Author(s): Akombo PM, Akange ET, Adeyemi SO
Abstract: The diversity and abundance of the
Synodontis species in River Benue at Makurdi were studied over a 24 month period, from January 2009 to December 2010. A total of 1104 specimens, comprising 16 species were identified. The 16 species were:
S.schall, 635 (57.52%);
S.gambiensis,109 (9.87%);
S.membranaceus,106 (9.60%);
S.clarias, 93 (8.42%);
S.omias, 51 (4.62%);
S.melanopterus, 28 (2.54%);
S.budgetti, 19 (1.72%);
S.sorex, 12 (1.09%);
S.nigrita, 11(1.00%);
S.courteti, 9(0.82%);
S.violaceus, 9(0.82%);
S.resupinatus, 8(0.72%);
S.filamentosus, 6(0.54%);
S.batensoda, 3(0.27%);
S.ocellifer, 3(0.27%) and
S.vermiculatus, 2(0.18%). Out of the 1104 specimens, 594 (54.80%) were males, while 510 (46.20%) were females, with the male to female sex ratio of 1.2:1. The diversity indices also showed that
S. schall had the highest diversity (Shannon Weiner H 6.40; Simpson 1-D 1.00; Brillouin 6.20 and Margalef 71.30). The least was recorded from
S.vermiculatus (Shannon Weiner H 0.69; Simpson 1-D 0.52; Brillouin 0.60 and Margalef 209.23).
Pages: 238-242 | 1597 Views 326 DownloadsDownload Full Article: Click Here
How to cite this article:
Akombo PM, Akange ET, Adeyemi SO. Diversity and abundance of Synodontis (Cuvier, 1816) species in the lower river Benue, Makurdi, Benue state, Nigeria. Int J Fish Aquat Stud 2016;4(1):238-242.
