Supplementary Materials

Table S1. Summary of morphological and biological traits for .

Maximum Trophic Position in Migration Guild Species Length Level Water Column

Gymnostomus spp. 24.4 2 benthopelagic longitudinal

Cyclocheilos enoplos 90.3 3.2 benthopelagic longitudinal

Puntioplites proctozysron 30 2.7 benthopelagic Lateral

Mystus spp. 15.9 3.1 demersal Lateral

Channa micropeltes 158.6 3.85 benthopelagic floodplain resident

Trichopodus microlepis 25 2.8 benthopelagic floodplain resident

Osteochilus vittatus 39 2 benthopelagic floodplain resident

Hypsibarbus spp. 40.5 2.4 benthopelagic Lateral

Channa striata 122 3.4 benthopelagic floodplain resident

Labiobarbus leptocheilus 36.6 2.34 benthopelagic Lateral

Hemibagrus spilopterus 37.7 3.5 demersal Lateral

Notopterus notopterus 73.2 3.6 demersal floodplain resident

Xenentodon sp. 40 3.9 pelagic-neritic longitudinal

Anabas testudineus 25 3 demersal floodplain resident

Cyclocheilichthys armatus 25 2.9 benthopelagic Lateral

Labeo chrysophekadion 90 2 benthopelagic Lateral

Labiobarbus siamensis 22 2.3 benthopelagic Lateral

Clarias spp. 47 3.4 demersal floodplain resident

Thynnichthys thynnoides 25 2.3 benthopelagic Lateral

Osteochilus melanopleura 73.2 2.3 benthopelagic Lateral

Pangasianodon hypophthalmus 158.6 3.1 benthopelagic longitudinal

Paralaubuca typus 22 3.3 benthopelagic Lateral

Pristolepis fasciata 20 3.2 demersal floodplain resident

Cirrhinus microlepis 79.3 2.4 benthopelagic longitudinal

Parambassis wolffii 24.4 3.7 demersal floodplain resident

Lycothrissa crocodilus 40.3 3.88 pelagic-neritic longitudinal

Boesemania microlepis 122 3.7 benthopelagic Lateral

Hampala dispar 42.7 3.7 benthopelagic floodplain resident

Puntius brevis 14.6 2.91 benthopelagic floodplain resident

Coilia spp. 31.7 3.7 pelagic longitudinal

Albulichthys albuloides 36.6 2.8 benthopelagic longitudinal Amblyrhynchichthys micracanthus 48.8 2.4 benthopelagic longitudinal

Oxyeleotris marmorata 79.3 3.9 demersal longitudinal

Belodontichthys truncatus 73.2 4.1 demersal longitudinal

Pangasius larnaudii 130 3.3 benthopelagic longitudinal

Wallago attu 240 3.68 demersal Lateral

Parachela siamensis 18.3 3.4 pelagic Lateral

Pangasius spp. 36.6 3.2 benthopelagic longitudinal

Polynemus aquilonaris 30.5 3.5 demersal longitudinal

Micronema spp. 24 3.7 benthopelagic longitudinal

Ompok siluroides 36.6 3.9 demersal floodplain resident

Systomus rubripinnis 30.5 2.9 benthopelagic longitudinal

Chitala ornata 122 3.7 pelagic floodplain resident

Leptobarbus rubripinna 122 2.8 pelagic Lateral

Trichopodus pectoralis 25 2.8 benthopelagic floodplain resident

Pao cambodgiensis 18.7 3.3 demersal Lateral

Kryptopterus cryptopterus 35 3.5 benthopelagic floodplain resident

Cosmochilus harmandi 100 2 benthopelagic longitudinal

Yasuhikotakia spp. 30.5 3.4 demersal longitudinal

Probarbus jullieni 183 3.17 demersal longitudinal

Parambassis apogonoides 12.2 2.87 demersal floodplain resident

Barbonymus altus 24.4 2.4 benthopelagic Lateral

Gyrinocheilus pennocki 34.2 2.5 demersal longitudinal

Achiroides leucorhynchos 9.8 3.5 demersal longitudinal

Channa lucius 48.8 3.9 benthopelagic floodplain resident

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Figure S1. Box and Whisker plot showing the maximum water level between the two periods: before the fishing lot abolishment (BLA) and after fishing lot abolishment (ALA).

Figure S2. Eigenvalue of the Figure 3 PCA indicating axes contribution on the total variance. The first two axes that contribute 32.40% of the total variance are in black.

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Figure S3. Eigenvalue of the Figure 4 PCA indicating axes contribution on the total variance. The first two axes that contribute 64.81% of the total variance are in black.

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