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Fig. 3 in Fish passage post-construction issues: analysis of distribution, attraction and passage efficiency metrics at the Baguari Dam fish ladder to approach the problem

Fig. 3. Temporal variation of fish groups abundance inside the fish ladder (a) and downstream (b; CPUEn) of Baguari Dam, and total dam discharge (c) during the reproductive (RS / gray rectangle) and non-reproductive (NRS) season.

Fig. 5 in Fish passage post-construction issues: analysis of distribution, attraction and passage efficiency metrics at the Baguari Dam fish ladder to approach the problem

Fig. 5. Abundance variation of fish groups (right column) and species (left column) in the tailrace and spill bay area of the Baguari Dam for the reproductive and non-reproductive season compared to the turbine and spillway discharge (bottom). Gray rectangle indicates the reproductive season.

Fig. 2 in The fish fauna in the fish passage at the Ourinhos Dam, Paranapanema River

Fig. 2. The fish ladder of Ourinhos Dam. a) the middle stretch and b) the ladder's flow into the river.

Fig 1 in The fish fauna in the fish passage at the Ourinhos Dam, Paranapanema River

Fig 1. Location of Paranapanema River in Brazil. In detail on the right the sequence of 11 dams constructed on the river (ANEEL 2012): 1- Rosana, 2 - Taquaruçu, 3 - Capivara, 4 - Canoas I, 5 - Canoas II, 6 - Salto Grande, 7 - Ourinhos, 8 - Chavantes, 9 - Paranapanema, 10 - Piraju, and 11 - Jurumirim. Other dams in tributaries are shown as triangles.

Fig. 4 in Fish passage post-construction issues: analysis of distribution, attraction and passage efficiency metrics at the Baguari Dam fish ladder to approach the problem

Fig. 4. Temporal variation of fish groups (a and d - non-migratory; b and e - migratory; c and f,- migratory allochthonous) richness (S) downstream and inside the fish ladder of Baguari Dam along the reproductive (RS - left column) and nonreproductive (NRS - right column) season.

Fig. 4 in Fish assemblage in a dammed tropical river: an analysis along the longitudinal and temporal gradients from river to reservoir

Fig. 4. Ordination diagram from Canonical Correspondence Analysis of the abundance of the 14 most numerous species with abiotic variables. Zone codes: 1 = Zone 1; 2 = Zone 2; 3 = Zone 3; and 4 = Zone 4. Species codes: Aspar = Astyanax parahybae; Astbim = Astyanax cf. bimaculatus; Cickel = Cichla kelberi; Geobra = Geophagus brasiliensis; Hopmal = Hoplias malabaricus; Hypaur = Hypostomus auroguttatus; Hoplit = Hoplosternum littorale; Hypaff = Hypostomus affinis; Lepcop = Leporinus copelandii; Lepcon = Leporinus conirostris; Metmac = Metynnis maculatus; Olihep = Oligosarcus hepsetus; Pimmac = Pimelodus maculatus; Plasqu = Plagioscion squamosissimus.

Fig. 3 in Fish assemblage in a dammed tropical river: an analysis along the longitudinal and temporal gradients from river to reservoir

Fig. 3. Spatial variation in species number and biomass by zone (1, 2, 3, 4) in Paraíba do Sul River and Funil Reservoir.

Fig. 1 in Fish assemblage in a dammed tropical river: an analysis along the longitudinal and temporal gradients from river to reservoir

Fig. 1. Paraíba do Sul River - Funil Reservoir system. The four sampled zones are shown (1 = Zone 1; 2 = Zone 2; 3 = Zone 3, and 4 = Zone 4).

Fig. 3 in Scientific Note Swimbladder abnormalities in piapara (Leporinus obtusidens) captured downstream of the Funil Dam

Fig. 3. Histological section of piapara Leporinus obtusidens swimbladder with sac-like projection (HE staining, 10x). a) hypertrophy and hyperplasia in the inner epithelium of the sac-like projection; b) normal cells in the inner swimbladder epithelium.

Fig. 2 in Scientific Note Swimbladder abnormalities in piapara (Leporinus obtusidens) captured downstream of the Funil Dam

Fig. 2. Histological section of piapara Leporinus obtusidens swimbladder (Masson trichromic staining, 10x). In a swimbladder with sac-like projection, the muscle layer (purple) was replaced by fibrous connective tissue (blue).

Fig. 1 in Scientific Note Swimbladder abnormalities in piapara (Leporinus obtusidens) captured downstream of the Funil Dam

Fig. 1. Urogenital opening of piapara Leporinus obtusidens. a) normal; b) the arrow indicates exposure of the posterior portion of the swimbladder; c) irregular coelomic cavity caused by swimbladder deformity without exteriorization. Swimbladder of piapara Leporinus obtusidens; d) normal; e) exposure of the posterior portion at the base of the anal fin opening; f) saclike projection without exteriorization.

Fig. 2 in Fish assemblage in a dammed tropical river: an analysis along the longitudinal and temporal gradients from river to reservoir

Fig. 2. Individual-based rarefaction curves by zone (1, 2, 3, 4) for species richness in the Paraíba do Sul River and Funil Reservoir.

Fig. 4 in Spatial and temporal distribution patterns of ichthyoplankton in a region affected by water regulation by dams

Fig. 4. Average abundance of fish eggs (a) and larvae (b) in the Ilha Grande National Park, from October 2001 to March 2005.

Fig. 2 in Spatial and temporal distribution patterns of ichthyoplankton in a region affected by water regulation by dams

Fig. 2. Average egg abundances (rectangles) and standard errors (bars) by period (a), month (b) and sampling area (c) in the Ilha Grande National Park, from October 2001 to March 2005.

Fig. 1 in Scientific Note Evaluation of fish passage through the Igarapé Dam fish ladder (rio Paraopeba, Brazil), using marking and recapture

Fig. 1. Total number of fish specimens marked per year and cumulative recovery rates in rio Paraopeba, from 1997 to 2001.

Fig. 2 in Scientific Note Radiotelemetry of a female jaú, Zungaro jahu (Ihering, 1898) (Siluriformes: Pimelodidae), passed upstream of Funil Dam, rio Grande, Brazil

Fig. 2. Movements of jaú in Funil Reservoir, rio Grande, and rainfall in rio das Mortes. The y-axis on the left shows distances to Funil Dam. The horizontal dashed line indicates the location of the rio das Mortes mouth before it was flooded.

Fig. 1 in Scientific Note Radiotelemetry of a female jaú, Zungaro jahu (Ihering, 1898) (Siluriformes: Pimelodidae), passed upstream of Funil Dam, rio Grande, Brazil

Fig. 1. Map of Funil Reservoir showing locations (%) of the tagged jaú. Location numbers as in Table 1.

Fig. 6 in Utilization of the fish ladder at the Engenheiro Sergio Motta Dam, Brazil, by long distance migrating potamodromous species

Fig. 6. Number of individuals for species captured in Protocol II (assessment of ascending and descending movements). Migratory species are in bold.

Fig. 3 in Utilization of the fish ladder at the Engenheiro Sergio Motta Dam, Brazil, by long distance migrating potamodromous species

Fig. 3. Number of individuals of the main species and proportions of the life strategies (LDMI: long distance migratory species; SNPC: sedentary species that do not develop parental care; SPC: sedentary species that develop parental care; SIFI: sedentary species with internal fertilization and internal development) sampled in both protocols conducted in the fish ladder located at Engenheiro Sergio Motta Dam (Migratory species are in bold).

Fig. 3 in Blockage of migration routes by dam construction: can migratory fish find alternative routes?

Fig. 3. Relationship between the time of recapture (days) and the movement (km) of individuals of the curimba P. lineatus, after the fish were caught and tagged near the Porto Primavera Dam. The movements above the 0 km axis represent upstream movements, and movements below the axis indicate downstream travels. The release locality of the fish is indicated in the figure (downstream or upstream).