Supporting tables and figures for Cancel Villamil JJ, Locke SA (2022) - Fish assemblage response to removal of a low‐head dam in the lower reach of a tropical island river, Freshwater Biology

Table S1 summarizes studies of the effects of dams on freshwater fish assemblages

Table S2 provides results of fishing in 39 samples in three rivers in Puerto Rico in 2017-2019. See 2, below. 

Figure S1 shows the relationship between fish species richness and time spent electrofishing in these samples.

Abstract of article:

1. Dams are often removed from rivers to restore habitat connectivity for biota such as fish. Removal of inland dams is well studied in temperate mainland rivers but this approach has been little studied in fish assemblages in islands, tropic systems, or for dams near the mouth of the river. In Puerto Rico, one of the most intensively dammed territories in the world, all native river fishes migrate between fresh water and the sea, and previous work shows these movements are impeded or blocked by dams.

2. Fish assemblages were compared before and after removal of the Cambalache dam, a porous, low-head structure near the mouth of the Río Grande de Arecibo...