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300 results for “Ichthyofauna”
FIGURE 7 in Freshwater fishes of the Northeastern Mata Atlântica ecoregion, Brazil: an updated checklist with distributional patterns of a highly endemic ichthyofauna
FIGURE 7. Distribution maps of native freshwater fishes occurring in the Northeastern Mata Atlântica ecoregion. (A) Astyanax turmalinensis; (B) Astyanax varii; (C) Astyanax vermilion; (D) Atlantirivulus depressus; (E) Atlantirivulus nudiventris; (F) Atlantirivulus unaensis; (G) Australoheros ipatinguensis; (H) Australoheros oblongus; (I) Brycon dulcis; (J) Brycon ferox; (K) Brycon howesi; (L) Brycon insignis; (M) Brycon opalinus; (N) Brycon vermelha; (O) Brycon vonoi; (P) Callichthys callichthys; (Q) Cetopsorhamdia iheringi; (R) Characidium bahiense; (S) Characidium clistenesi; (T) Characidium cricarense.
FIGURE 6 in Freshwater fishes of the Northeastern Mata Atlântica ecoregion, Brazil: an updated checklist with distributional patterns of a highly endemic ichthyofauna
FIGURE 6. Distribution maps of native freshwater fishes occurring in the Northeastern Mata Atlântica ecoregion. (A) Acentronichthys leptos; (B) Acestrorhynchus falcatus; (C) Acestrorhynchus lacustris; (D) Acinocheirodon melanogramma; (E) Ammoglanis multidentatus; (F) Anablepsoides bahianus; (G) Ancistrus multispinis; (H) Apareiodon itapicuruensis; (I) Aspidoras kiriri; (J) Aspidoras maculosus; (K) Aspidoras psammatides; (L) Astyanax brevirhinus; (M) Astyanax brucutu; (N) Astyanax epiagos; (O) Astyanax jacobinae; (P) Astyanax lorien; (Q) Astyanax microschemos; (R) Astyanax pardensis; (S) Astyanax rupestris; (T) Astyanax sincora.
FIGURE 5 in Freshwater fishes of the Northeastern Mata Atlântica ecoregion, Brazil: an updated checklist with distributional patterns of a highly endemic ichthyofauna
FIGURE 5. Bioregions of the freshwater ichthyofauna of the Northeastern Mata Atlântica ecoregion, their main drainages and supporting species.
FIGURE 3 in Freshwater fishes of the Northeastern Mata Atlântica ecoregion, Brazil: an updated checklist with distributional patterns of a highly endemic ichthyofauna
FIGURE 3. Sample of Siluriformes species (Auchenipteridae and Loricariidae) endemic to the Northeastern Mata Atlântica ecoregion. (A) Glanidium botocudo (Photo by Sarmento-Soares & Martins-Pinheiro 2013c), (B) Euryochus thysanos (Photo by Pereira & Reis 2017); (C) Hirtella carinata (Photo by Pereira et al. 2014); (D) Pareiorhaphis lineata (Photo by Pereira et al. 2017); (E) Pareiorhaphis lophia (Photo by Pereira & Zanata 2014); (F) Pareiorhaphis mucurina (Photo by Pereira et al. 2018); (G) Pareiorhaphis nasuta (Photo by Pereira et al. 2007); (H) Pareiorhaphis proskynita (Photo by Pereira & Britto 2012); (I) Pareiorhaphis ruschii (Photo by Pereira et al. 2012); (J) Pareiorhaphis scutula (Photo by Pereira et al. 2010); (K) Pareiorhaphis vetula (Photo by Pereira et al. 2016); (L) Parotocinclus adamanteus (Photo by Pereira et al. 2019); (M) Hypostomus jaguar (Photo by Zanata et al. 2013); (N) Hypostomus leucophaeus (Photo by Zanata & Pitanga 2016).
FIGURE 2 in Freshwater fishes of the Northeastern Mata Atlântica ecoregion, Brazil: an updated checklist with distributional patterns of a highly endemic ichthyofauna
FIGURE 2. Sample of Characiformes species endemic to the Northeastern Mata Atlântica ecoregion. (A) Hypomasticus santanai, (B) Leporinus bahiensis, (C) Leporinus melanopleurodes, (D) Megaleporinus brinco, (E) Megaleporinus gaiero (Photos by J.L.O. Birindelli); (F) Brycon dulcis; (G) Brycon ferox; (H) Brycon howesi; (I) Brycon vermelha; (J) Brycon vonoi (Photos by Lima 2017); (K) Astyanax brucutu (Photo by Zanata et al. 2017); (L) Astyanax epiagos; (M) Astyanax jacobinae (Photos by Zanata & Camelier 2008); (N) Astyanax lorien; (O) Astyanax rupestris (Photos by Zanata et al. 2018); (P) Astyanax varii (Photo by Zanata et al. 2019); (Q) Astyanax vermillion; (R) Deuterodon burgerai (Photos by Zanata & Camelier 2009); (S) Hasemania piatan (Photo by Zanata & Serra 2010); (T) Hyphessobrycon brumado (Photo by Zanata & Camelier 2010); (U) Characidium deludens (Photo by Zanata & Camelier 2015); (V) Characidium helmeri (Photo by Zanata et al. 2015); (W) Characidium kamakan (Photo by Zanata & Camelier 2015); (X) Characidium samurai (Photo by Zanata & Camelier 2014).
FIGURE 1 in Freshwater fishes of the Northeastern Mata Atlântica ecoregion, Brazil: an updated checklist with distributional patterns of a highly endemic ichthyofauna
FIGURE 1. Maps of the Northeastern Mata Atlântica ecoregion. (A) Geographic location of the ecoregion in Brazil and South America, adjacent ecoregions, hydrographic system, and state political division. BA (Bahia), ES (Espírito Santo), MG (Minas Gerais), RJ (Rio de Janeiro), SE (Sergipe); (B) Hypsometric map of the ecoregion; (C) Basins draining the ecoregion; (D) Sampling records of freshwater fishes in the ecoregion. Each point may represent more than one sampling site.
Data from: Systematic and historical biogeography of the Bryconidae (Ostariophysi: Characiformes) suggesting a new rearrangement of its genera and an old origin of Mesoamerican ichthyofauna
Recent molecular hypotheses suggest that some traditional suprageneric taxa of Characiformes require revision, as they may not constitute monophyletic groups. This is the case for the Bryconidae. Various studies have proposed that this family (considered a subfamily by some authors) may be composed of different genera. However, until now, no phylogenetic study of all putative genera has been conducted. In the present study, we analyzed 27 species (46 specimens) of all currently recognized genera of the Bryconidae (ingroup) and 208 species representing all other families and most genera of the Characiformes (outgroup). Five genes were sequenced: 16SrRNA, Cytochrome b, recombination activating gene 1 and 2 and myosin heavy chain 6 cardiac muscle. The final matrix contained 4699 bp and was analyzed by maximum likelihood, maximum parsimony and Bayesian analyses. The results show that the Bryconidae, composed of Brycon, Chilobrycon, Henochilus and Salminus, is monophyletic and is the sister group of Gasteropelecidae + Triportheidae. However, the genus Brycon is polyphyletic. Fossil studies suggest that the family originated approximately 33 million years ago (Ma) and that one of the two main lineages persisted only in trans-Andean rivers, including Central American rivers, suggesting a much older origin of Mesoamerican ichthyofauna than previously accepted. Bryconidae is composed by five main clades, including the genera Brycon, Chilobrycon, Henochilus and Salminus, but a taxonomic review of these groups is needed. Our results points to a possible ancient invasion of Central America, dating about 17.4+/-8 Ma (late Oligocene/late Miocene), to explain the occurrence of Brycon in Central America.
FIGURE 1 in A checklist of the freshwater ichthyofauna from El Petén and Alta Verapaz, Guatemala, with notes for its conservation and management
FIGURE 1. Historical collection localities and collectors from El Petén and Alta Verapaz, Guatemala. Allgayer, R. 1991, 2002; Kihn, P. H. A. 2001; Barrientos, C. C. 1999; Bussing, W. A. & Martin, M. 1975; Collete, B. B. 1974; Glaser, U., F. Schafer, & W. Glaser. 1996; Granados, D. P. 2001; Greenfield, D. W. & J. E. Thomerson. 1997; Grey, M. 1947; ⌧Günther, A. 1868; Hubbs, C. L. 1935, 1950; Meek, S. E. 1907; Miller, R. R. 1955, 1966, 1971, 1976, 1982, 1986; Molina, O. 2000; Meyer, M. K. & M. Schartl. 2002; Poeser, F. N. 2002; Surveys by the authors of this paper in 2001, 2002, 2003; Regan, C. T. 19061908; Rivas, R. L. 1962; Rosen, D. E. 1967, 1969 1970, 1972,1979; Theodorakis, C. & J. W. Bickhan. 2000; Willink, P. W. et al. 2000.
Supplementary material 1 from: dos Santos SA, de Britto MR (2021) The ichthyofauna of a poorly known area in the middle-southern Espinhaço mountain range, state of Minas Gerais, Brazil: diagnostics and identification keys. ZooKeys 1054: 25-66. https://doi.org/10.3897/zookeys.1054.67554
Summarizes voucher information and comparative material with institutional acronyms, following Sabaj (2019).
Figure 5 in Spatial distribution of ichthyofauna in the northern Alboran Sea (western Mediterranean)
Figure 5. Non-metric multidimensional scaling (nMDS) analyses using fish abundance data (ind h−1). One- or two-letter labels stand for the sampled location. (a) Inner continental shelf (30–100 m); (b) outer continental shelf (100–200 m); (c) upper continental slope (200–500 m); (d) middle continental slope (500–800 m).
Figure 4 in Spatial distribution of ichthyofauna in the northern Alboran Sea (western Mediterranean)
Figure 4. Species rarefaction curves for the fish assemblages within the inner continental shelf (IS, 30–100 m), outer continental shelf (OS, 100–200 m), upper continental slope (US, 200– 500 m) and middle continental slope (MS, 500–800 m). The x-axis represents the number of samples for each group.
Figure 2 in Spatial distribution of ichthyofauna in the northern Alboran Sea (western Mediterranean)
Figure 2. Non-metric multidimensional scaling (nMDS) analyses using (a) abundance and (b) biomass of fish species collected in the different hauls.
Figure 1 in Spatial distribution of ichthyofauna in the northern Alboran Sea (western Mediterranean)
Figure 1. Map of the study area throughout the northern Alboran Sea showing the haul stations from the MEDITS survey series, from 1994 to 2005 (black points) and sampled stations from RADMED (Radiales del Mediterráneo) programme (black crosses).
Figure 3 in Spatial distribution of ichthyofauna in the northern Alboran Sea (western Mediterranean)
Figure 3. Mean values of (a) abundance (ind h−1), (b) biomass (kg h−1) and (c) species mean weight (g ind–1) in the different assemblages characterised. IS: Inner continental shelf (30–100 m); OS: outer continental shelf (100–200 m); US: upper continental slope (200–500 m); MS: middle continental slope (500–800 m). Bars represent ± standard error (SE).
Data from: Coordinated dispersal and pre-Isthmian assembly of the Central American ichthyofauna
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Data from: DNA barcoding of the ichthyofauna of Taal Lake, Philippines
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Data from: Systematic and historical biogeography of the Bryconidae (Ostariophysi: Characiformes) suggesting a new rearrangement of its genera and an old origin of Mesoamerican ichthyofauna
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Fig. 4 in Flowing into the unknown: inferred paleodrainages for studying the ichthyofauna of Brazilian coastal rivers
Fig. 4. Results of correlation tests: a. between the paleodrainage total area with contemporary land area encompassed by each paleodrainage (r2 = 0.99; P <0.0001); b. the number of contemporary basins encompassed by each paleodrainage (r2 = 0.17; P <0.0001); and c. between the contemporary land area and the area of the continental shelf exposed during the drop in sea level (r2 = 0.04; P = 0.01). Individual values per paleodrainages are given in Tab. 1.
Fig. 3 in Flowing into the unknown: inferred paleodrainages for studying the ichthyofauna of Brazilian coastal rivers
Fig. 3. Map of the 145 palaeodrainages inferred for a sea level retreat of -125 m during glacial periods of the Pleistocene; the black line marks the current coastline of Brazil. Both the area that includes the contemporary exposed land area, as well as the area of the continental shelf exposed when sea levels dropped (marked with stippling) is shown for each paleodrainage, with each paleodrainage shown in a different colour. Numbers along the coast indicate the paleodrainage ID on Tab. 1.
Fig. 1 in Flowing into the unknown: inferred paleodrainages for studying the ichthyofauna of Brazilian coastal rivers
Fig. 1. Map of the Brazilian coast showing main river drainages, bays, lagoons and mountain chains. Elevation and bathymetric profile for the area highlight the isolation of the coastal basins from inland rivers by mountains, including the Serra do Mar and the Chapada Diamantina in the west. Continental shelf exposed during the Pleistocene is marked with the stippled yellow shading.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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International Brain Laboratory public data
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OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.