Figure 1.
Map of the southern Kenyan coastline showing with locations of the eleven fishery landing sites used in this study.
Table 1.
Catch composition and proportion under lengths at first maturity. Percentage of total catch by weight and number for the 15 most commonly caught species, and percentage under length at first maturity (Lmat).
Table 2.
Catch composition, and proportion under lengths at first maturity by gear type.
Figure 2.
Distribution of species and life history parameters by gear.
A redundancy analysis showing species distribution by gear, over ten years, along the Kenyan coast; with the associated life history characteristics driving differences in gear. Replication is at the level of a year; p = 0.002, F = 6.60, C1 = 49.1%, C2 = 32.4%. Black circles- Beachseine; white square- Spearguns; grey triangle- Hook and line; white diamond- Trap; grey circle- Net; arrows - life history parameters.
Figure 3.
Size frequency distribution and mortality curves.
Size frequency distribution with length at maturity (Lmat), length to achieve optimum yield (Lopt), and length at infinity (L∞) overlain; and mortality curves calculating Z for; a) L. lentjan (y = 13.83−5.26x, r2 = 0.97); b) S. sutor (y = 11.22–3.15x, r2 = 0.98) and; c) L. vaigiensis (y = 12.98–3.24x, r2 = 0.97).
Table 3.
Life history characteristics used.
Table 4.
Mortality and exploitation estimates.
Table 5.
Management metrics for mesh in use and potential further restrictions.
Figure 4.
Logistic curve selection ogives for the three most commonly landed species in the catch, showing percent retained in the catch by body length.