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Figure 1 in Experimental evidence that the invasive snail Potamopyrgus antipodarum (Gray, 1843) survives passage through the digestive tract of common riverine fish

Figure 1. The Number of ingested P. antipodarum individuals per fish (red bars) and the number of snails that survived passing through the digestive tract (green bars). Values are mean ± standard deviation.

Fig. 4 in The fish fauna in the fish passage at the Ourinhos Dam, Paranapanema River

Fig. 4. Relative abundance of species in the fish ladder. Abbreviations: Aa – Apareiodon affinis; Bs – Bryconamericus stramineus; Asf – Astyanax fasciatus; Pn – Parodon nasus; Ot – others; Pa – Piabina argentea; Ha – Hypostomus ancistroides; Tr – Tilapia rendalli; Hsp3 – Hypostomus sp. 3; Hr – Hypostomus cf. regani.

Fig. 6 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. 6. Abundance of fish groups (a) and species (b) along different stretches of the Baguari Dam fish ladder. Each stretch included 27 pools. Lower = first stretch after the fish ladder entrance. Upper = last stretch connected to the reservoir. Number in parenthesis indicates richness for each group.

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.

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Fig. 3 in Passage of fish larvae and eggs through the Funil, Itutinga and Camargos Reservoirs on the upper Rio Grande (Minas Gerais, Brazil)

Fig. 3. Variation in mean water residence time (days) and estimated number of eggs and larvae per second reaching the Funil (a) and Itutinga-Camargos (b) Reservoirs from November 2008 to March 2009.

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Fig. 1 in Passage of fish larvae and eggs through the Funil, Itutinga and Camargos Reservoirs on the upper Rio Grande (Minas Gerais, Brazil)

Fig. 1. Locations of sampling stations in the upper rio Grande basin upstream of the Furnas Reservoir (Minas Gerais State, Brazil). RGI = immediately downstream of the Funil Dam; RGII = immediately upstream of the Funil Reservoir; RGIII = immediately downstream of the Itutinga Dam; RGIV = immediately upstream of the Camargos Reservoir; RCA = Capivari River; RM = Mortes River; and RA = Aiuruoca River.

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Fig. 2 in Passage of fish larvae and eggs through the Funil, Itutinga and Camargos Reservoirs on the upper Rio Grande (Minas Gerais, Brazil)

Fig. 2. Box plot of the number of eggs (a) and larvae (b) per second reaching the upstream and downstream regions of the Funil and Itutinga-Camargos Reservoirs from November 2008 to March 2009. Small open dots represent the tributaries sampled; triangles represent the reservoirs; black dots represent sites where numbers of eggs and larvae were estimated; and arrows represent the direction of flow (JF = downstream of the Funil Dam; MF = upstream of the Funil Reservoir; JIC = downstream of the Itutinga-Camargos Dam; and MIC = upstream of the Itutinga-Camargos Reservoir).

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. 5 in Efficiency and selectivity of a trap and truck fish passage system in Brazil

Fig. 5. Relative abundance of migratory species per size class for the lower Mucuri River, in the Santa Clara tailrace (2002/ 2003) and in the Santa Clara Dam fish lift (2003/2004).

Fig. 4 in Efficiency and selectivity of a trap and truck fish passage system in Brazil

Fig. 4. Relative abundance of target species in the lower Mucuri River, in the Santa Clara tailrace (2002/2003) and in the Santa Clara Dam fish lift (2003/2004).

Fig. 6 in Efficiency and selectivity of a trap and truck fish passage system in Brazil

Fig. 6. Number of injured or dead fish after being passed by the fish lift according to species groups.

Fig. 2 in Efficiency and selectivity of a trap and truck fish passage system in Brazil

Fig. 2. Abundance (%) of captured species in the Santa Clara tailrace (2002/2003) and passed by the fish lift (2003/2004).

Fig. 1 in Fish passage ladders from Canoas Complex - Paranapanema River: evaluation of genetic structure maintenance of Salminus brasiliensis (Teleostei: Characiformes)

Fig. 1. Partial view of the Paranapanema River and its principal affluents (Tibagi and Cinzas Rivers). Featured are the two collection sites: HEP Canoas I and HEP Canoas II.

Fig. 5 in Can north american fish passage tools work for South american migratory fishes?

Fig. 5. Patterns in velocity magnitude (m/s) and total hydraulic strain (s-1) for the Lower Granite Dam SBC in 2000 [A] and RSW in 2003 [B]. Dam operations described in Goodwin et al. (2006). Each of the two configurations is described with 4 paired velocity magnitude and total hydraulic strain plots. For each grouping, top plots depict a cross-section through the bypass structure (middle entrance of SBC in 2000 and RSW in 2003), 3-D plots in each grouping are cross-sections parallel to dam face at 50 m intervals, and the two bottom plots are horizontal plan views (z = 37 and 42.25 m) showing the change in hydrodynamic pattern at different locations and depths.

Fig. 1 in Can north american fish passage tools work for South american migratory fishes?

Fig. 1. Comparison of observed and NFS predicted (based on 5,000 virtual fish) emigrant passage proportions for 23 configurations for behavior rules turned on (A) and behavior rules turned off (B) (virtual emigrants act as passive particles). Passage (exit) routes are bypass, spillway and turbines. Routes with either 0% or 100% of river flow in CFD model are not plotted or factored into trend lines. Sources of observed data are described in Goodwin et al. (2006).