International Journal of Marine Science, 2016, Vol.6, No.24, 1-8
5
In the present study, 478 male and 530 female specimens were caught representing 47.42% and 52.58% of the fish
population respectively, giving the overall sex ratio of 1male:1.1 females (Table 4). A Chi–square revealed a
significant departure from the theoretical 1male to 1 female ratio (X2 =2.68 > X2, 0.05=3.84). Sex ratios were
generally in favour of females except in species such as
Chrysichthys nigrodigitatus
,
Tilapia zilli
,
Tilapia
guinensis
,
Sarotherondon melanotheron
which were in favour of males.
Chrysichthys auratus longifilis
had a sex
ration of 1:1.
Figure 6: Length-weight relationships in
Pomadasys peroteti
from Badagry creek.
Figure 7: Length-weight relationships in
C. longifilis
from Badagry creek.
Figure 8: Length-weight relationships in
Pomadasis jubelini
from Badagry creek.
from Badagry creek;
Figure 9: Length-weight relationships in
Gymnacus
niloticus
from Badagry creek.
Figure 10: Length-weight relationships in
Sarotherodon
melanotheron
from Badagry creek.
Figure 11: Length-weight relationships in
Tilapia mariae
from Badagry creek.
