Fig. 4From: Comparative assessment of age, growth and food habit of the black-chinned tilapia, Sarotherodon melanotheron (Rüppell, 1852), from a closed and open lagoon, GhanaRelationship between daily otolith increment (mm) and number of rings (days) for Sarotherodon melanotheron from Nakwa lagoon (n = 20) (a) and Brenu lagoon (n = 11) (b) of Ghana. The line shows the trend of the relationship between the daily otolith increment and the number of rings (days)Back to article page