Find research datasets worth reusing

opencc-by-4.0Jun 2009View details →

Fig. 2 in Comparative feeding ecology and habitats use of Crenicichla species (Perciformes: Cichlidae) in a Venezuelan floodplain river

Fig. 2. Map showing location of the Cinaruco River, a tributary of the Orinoco River in Venezuela's Apure State; the study reach is outlined with a rectangle.

opencc-by-4.0Jun 2009View details →

Fig. 4 in Comparative feeding ecology and habitats use of Crenicichla species (Perciformes: Cichlidae) in a Venezuelan floodplain river

Fig. 4. Number of immature and mature gonads encountered in C. lugubris (a) and C. aff. wallacii (b) of different size classes during the dry season. (black barra) Mature (gonad state> 3); (white barra) immature (gonad state 1-2). C. lugubris (n = 102), C. aff. wallacii (n = 108).

Fig. 8 in Ecology and life history of an Amazon floodplain cichlid: the discus fish Symphysodon (Perciformes: Cichlidae)

Fig. 8. Length vs. weight plots for male and female Symphysodon haraldi from a single colony in Uxi Bay, lago Amanã.

Fig. 12 in Ecology and life history of an Amazon floodplain cichlid: the discus fish Symphysodon (Perciformes: Cichlidae)

Fig. 12. Histogram showing size distribution of n = 1271 ovules from a pre-spawning (stage 4) female Symphysodon haraldi. Column bin-intervals are 0.05 mm.

Fig. 9 in Ecology and life history of an Amazon floodplain cichlid: the discus fish Symphysodon (Perciformes: Cichlidae)

Fig. 9. Frequency distribution of the size of Symphysodon haraldi from a single large colony in Uxi Bay, lago Amanã. Column bin-intervals are 3 mm. See Fig. 2 for the timing of sampling in (a) 1998 and (b) 1997. Specimens parasitized with Braga cichlae are excluded. Major modes in the multi-modal distribution of SL are marked with dotted lines and labeled as putative cohort groups (0, 1a, 1b, 2a, 2b, 3, 4) (refer to Fig. 2). Arrows on the x-axis mark the maximum known size of females. X refers to a male specimen marked and released on 20 December 1997 (X1), and recaptured (X2) on 16 November 1998. The overlapping shaded histogram for the 1998 data refers to seven discus captured in adjacent shore scrub. The histograms distributions marked by the beginnings and ends of the dotted triangles for 1a, 1b, and 2 in 1998, and 2a, 2b and 3 in 1997 fit normal distributions (p <0.01, one sample Kolmogorov-Smirnov tests).

Fig. 6 in Ecology and life history of an Amazon floodplain cichlid: the discus fish Symphysodon (Perciformes: Cichlidae)

Fig. 6. Shoreline distance dispersed by 104 tagged Symphysodon haraldi over a 7-9 day period in Uxi Bay, lago Amanã subsequent to release at their original capture site. Each bar represents a 5 m distance range.

Fig. 5 in Ecology and life history of an Amazon floodplain cichlid: the discus fish Symphysodon (Perciformes: Cichlidae)

Fig. 5. Seasonal changes in the proportional composition of food items within stomachs of Symphysodon haraldi from blackwater habitats of the Tefé region. Calculations of mean food item contribution excluded specimens with empty stom- achs. Error bars (displayed above bars) refer to one standard deviation from mean. Algae = periphyton identified as a mass of bright green filamentous structures. FOD = Fine organic detritus. GPM = green plant (macrophytes) matter – apparently mostly small triturated pieces of leaves. Periphyton, FOD and GPM were difficult to separate volumetrically, and are there- fore combined into a single category. GPM represented only a small portion of the volume of this category (perhaps less than 15%). COD = Coarse organic detritus – mainly pieces of wood and bark.

Fig. 11 in Ecology and life history of an Amazon floodplain cichlid: the discus fish Symphysodon (Perciformes: Cichlidae)

Fig. 11. Reproductive status and sex of putative (a) 1+ and (b) 2+ cohort members Symphysodon haraldi from a single large discus colony in Uxi Bay, lago Amanã, 1998. Only specimens that were dissected for sex determination are included. The single 1+ specimen with a stage 4 gonad is illustrated in Fig. 12c.

Fig. 1. NASDA JERS-1 in Ecology and life history of an Amazon floodplain cichlid: the discus fish Symphysodon (Perciformes: Cichlidae)

Fig. 1. NASDA JERS-1 radar image of the Tefé region, Brazil: (a) high water (May 1995); (b) low water (September 1995). Flooded forests appear white, illustrating the maximum extent of the seasonal flooding. The area between the dotted lines is whitewater floodplain. R. Solimões is the local name for the Amazon River. Discus occur in the following habitats: 1, blackwater flooded forest (igapó), 2, blackwater lakes, 3, whitewater flooded forest, 4, whitewater floodplain lakes. Study are marked A (Uxi Bay) and B (lago Urini). Inset (c) shows Uxi Bay from Landsat TM-5 image, 1998. Here, the white dot represents the locality of a large discus colony and the line X-Y refer to the cross-sectional schematic (d). In (d) the dotted horizontal line represents the water level at the beginning of 1998 samples. The 4 m water-level (see also Fig. 2) marks the lower levels of shore scrub growing on beaches and sand bars. Shore scrub is dominated by Coccoloba ovata Benth. and Symmeria paniculata Benth. (Polygonaceae).

Fig. 3 in Effects of extended absence of flooding on the fish assemblages of three floodplain lagoons in the middle São Francisco River, Brazil

Fig. 3. Catch per unit of effort in number of individuals (CPUEn) in the 'Curral-de-Vara' and 'Cajueiro' lagoons of the middle São Francisco River, Brazil, from September 1994 to March 1996 (dot = mean; whiskers = maximum and minimum).

Fig. 5 in Effects of extended absence of flooding on the fish assemblages of three floodplain lagoons in the middle São Francisco River, Brazil

Fig. 5. São Francisco River flow at the town of Manga, State of Minas Gerais, during the last 20 years before 2003, including the period of study.

opencc-by-4.0Mar 2006View details →

Fig. 3 in Factors influencing Serrapinnus notomelas (Characiformes: Characidae) populations in upper Paraná river floodplain lagoons

Fig. 3. Scatterplot of the abundance of Serrapinnus notomelas and the scores of axis 1 of the principal components analysis (PCA) that summarized physical variables. Variables that more contributed to formation of the axis (arrows) are also given. TSS = Total suspended solids.

Fig. 4 in Effects of extended absence of flooding on the fish assemblages of three floodplain lagoons in the middle São Francisco River, Brazil

Fig. 4. Catch per unit of effort in biomass (CPUEb) in the 'Curral-de-Vara' and 'Cajueiro' lagoons of the middle São Francisco River, Brazil, from September 1994 to March 1996 (dot = mean; whiskers = maximum and minimum). Different letters above columns indicate significant differences.

Fig. 2 in Effects of extended absence of flooding on the fish assemblages of three floodplain lagoons in the middle São Francisco River, Brazil

Fig. 2. Fish richness in the marginal lagoons of the middle São Francisco River, Brazil, from September 1994 to March 1996.

opencc-by-4.0Mar 2006View details →

Fig. 1 in Factors influencing Serrapinnus notomelas (Characiformes: Characidae) populations in upper Paraná river floodplain lagoons

Fig. 1. Map of the upper Paraná River floodplain showing the locations of the sampling stations (lagoons).

Fig. 2 in Compositional change in fish assemblages along the Andean piedmont - Llanos floodplain gradient of the río Portuguesa, Venezuela

Fig. 2. DCA ordination of species assemblages at survey sites in three different elevational zones along the longitudinal gradient of the Portuguesa River, Venezuela: Camaguan, 50-100 m (open squares); Middle, 100-150 m (filled circles); and Upper, 150-200 m (open triangles). The three regions were significantly different in assemblage composition (MANOVA, p <0.0001).

Fig.1 in Compositional change in fish assemblages along the Andean piedmont - Llanos floodplain gradient of the río Portuguesa, Venezuela

Fig.1. Map of Venezuela with inset showing locations of survey sites (n=28, filled circles) along the río Portuguesa elevational gradient.

Fig. 2 in Food resource partitioning in a fish community of the central Amazon floodplain

Fig. 2. Relative importance of food categories in supporting the community's biomass of fish species inhabiting a floodplain lake (lago do Rei) in Central Amazonia in the two seasons.

Fig. 3 in Food resource partitioning in a fish community of the central Amazon floodplain

Fig. 3. Distribution of overlaps values between diets of fish species inhabiting a floodplain lake (lago do Rei) in Central Amazonia. a: whole community all seasons (74 species); b: generalist species all seasons (27 species); and c: seasonal differences (23 species).