Table 1.
Locations of the twenty-five landing sites visited in this study, including the adjacent coastline (WP = West Peninsular, EP = East Peninsular, B = Borneo) and the marine region where the fish catch originated (M = Strait of Malacca, S = Strait of Johor, WSC = west South China Sea, ESC = east South China Sea, SS = Sulu Sea, CS = Celebes Sea).
Numbers in first column and species abbreviations refer to Fig 1.
Fig 1.
Neighbour-Joining (NJ) tree of CO1 barcodes for all Lutjanus species collected at Malaysian landing sites.
Tips representing sequences for all individuals sampled have been collapsed into species clades to simplify the illustration of diversity within and among species, except in the case of L. Lutjanus (LL1 & LL2) where two groups were retained to show the presence of two divergent lineages, see Fig 2. All bootstrap values for conspecific groups were > 50%, the scale bar indicates percent divergence calculated under the K2P model.
Table 2.
Average K2P divergences between CO1 barcodes of the 17 Lutjanus species sampled from Malaysian landing sites.
Intraspecific comparisons are indicated by shaded text. Minimum and maximum interspecific divergence values are bolded, highlighting comparatively low divergence between L. decussatus and L. lemniscatus and high divergence between L. malabaricus and L. vitta. For full species names see Fig 1.
Fig 2.
A: Neighbour-Joining (NJ) tree of CO1 barcode data for all species of the yellow-lined snapper complex excluding L. mizenkoi where no sequence data was available. B & C: Left ventral view of the cleithrum region for each of the two L. lutjanus phenotypes that were observed, showing difference in articulation between the supracleithrum and the cleithrum; B in LL2 specimens from site 1 the elements are somewhat unattached, while in LL1 and LL2 specimens from sites 2, 6, 19 (C) the elements are fully fused.
Table 3.
Average K2P divergences between CO1 barcodes of the yellow-lined lutjanids, including the two bigeye snapper Lutjanus lutjanus lineages (LL1 & LL2, red and green dots respectively) encountered in this study.