Fig 1.
Sharks landing monitoring site and fishing grounds of shark fishers that land at Tanjung Luar.
Table 1.
Types of data collected on fishing behaviour and catch composition during daily landings data collection at Tanjung Luar.
Table 2.
Characteristics of surface and bottom longlines.
Table 3.
Characterisation of the different fishing vessels used to target sharks in Tanjung Luar.
Table 4.
Sharks species landed in Tanjung Luar from January 2014 –December 2015 (VU = Vulnerable, EN = Endangered, NT = Near Threatened, LC = Least Concern, NE = Not Evaluated (VU and EN classified as ‘threatened’ in this study); II = CITES Appendix II, N = Not CITES-listed (II species classified as ‘regulated’ in this study)).
Fig 2.
Plots of CPUE: Number of individuals per set (A) and number of individuals per 100 hooks per set (standardised CPUE) (B) by gear type (1), number of hooks (2), number of sets (3) and engine horsepower (4).
Table 5.
Analysis of variance for linear model of standardised CPUE (individuals per 100 hooks per set) data from Tanjung Luar; significant values (p<0.05) are given in bold.
Fig 3.
Plots of most significant factors affecting standardised CPUE (number of individuals per 100 hooks per set) of threatened species: a) hook number, b) fishing ground, c) engine power and d) trip length.
Table 6.
Analysis of variance for the best fit models of factors affecting: a) the likelihood of catching and the standardised CPUE of threatened species b) the likelihood of catching and the standardised CPUE of regulated species.
Fig 4.
Plots of most significant factors affecting standardised CPUE (number of individuals per 100 hooks per set) of regulated species: a) hook number, b) gear type, c) number of sets.