Research Article
Reproductive Strategy of Labeobarbus batesii (Boulenger, 1903) (Teleostei: Cyprinidae) in the Mbô Floodplain Rivers of Cameroon
Table 2
Annual and monthly variation in sex ratio (male : female) of Labeobarbus batesii.
| | Year | Month | Total sample () | Male () | Female () | Sex ratio | |
| | | May | 9 | 4 | 5 | 1 : 1.25 | 0.020 | | | June | 9 | 4 | 5 | 1 : 1.25 | 0.020 | | | July | 24 | 12 | 12 | 1 : 1 | | | 2008 | Aug. | 55 | 22 | 33 | 1 : 1.5 | 3.156 | | Sept. | 80 | 38 | 42 | 1 : 1.10 | 0.006 | | | Oct. | 16 | 1 | 15 | 1 : 15 | 3.480 | | | Nov. | 12 | 3 | 9 | 1 : 3 | 0.530 | | | Dec. | 32 | 20 | 12 | 1 : 0.60 | 0.120 | | Overall in 2008 | 237 | 104 | 133 | 1 : 1.28 | 1.75 |
| | | Jan. | 29 | 14 | 15 | 1 : 1.07 | 0.051 | | | Feb. | 2 | 1 | 1 | 1 : 1 | | | | March | 6 | 2 | 4 | 1 : 2 | 0.180 | | | April | 8 | 2 | 6 | 1 : 3 | 0.480 | | 2009 | May | 12 | 3 | 9 | 1 : 3 | 0.530 | | June | 7 | 4 | 3 | 1 : 0.75 | 0.141 | | | July | 5 | 0 | 5 | 0 : 5 | 4.35* | | | Aug. | 17 | 6 | 11 | 1 : 1.83 | 3.95* | | | Sept. | 42 | 18 | 24 | 1 : 1.33 | 3.042 | | | Oct. | 22 | 6 | 16 | 1 : 2.66 | 5.46* | | Overall in 2009 | 150 | 56 | 95 | 1 : 1.70 | 5.02
*
|
| | Overall in the floodplain | 387 | 160 | 227 | 1 : 1.42 | 4.05* |
|
|
: number of fish, significant at * = 0. 05, and : Chi-square.
|
