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194 results for “Tributaries”
Fig. 1 in Influence of a large dam and importance of an undammed tributary on the reproductive ecology of the threatened fish matrinxã Brycon orthotaenia Günther, 1864 (Characiformes: Bryconidae) in southeastern Brazil
Fig. 1. Location of the study sites of the upper rio São Francisco, downstream from the Três Marias Dam, Minas Gerais State (MG), Brazil. Site 1, immediately downstream from the Três Marias Dam and site 2, below the confluence with the rio Abaeté.
Figure 1 in The influence of land use-impacted tributaries on water quality and phytoplankton in the Mooi River, North West Province, South Africa
Figure 1: Catchment area of the Mooi River from its source to the confluence with the Vaal River, showing the position of sampling sites in the main stream (1–8) and in the tributaries (WFS, GM and WS). Different types of land use activities in the catchment are also indicated on the map.
Figure 3 in The influence of land use-impacted tributaries on water quality and phytoplankton in the Mooi River, North West Province, South Africa
Figure 3: Canonical Correspondence Analysis (CCA) of the physico-chemical environmental variables, natural log of the phytoplankton data, and the different sites located in the Mooi River for 2015.
Tributary bay oscillations generated by diurnal discharge regulation in Three Gorges Reservoir
<p>The dataset include absolute water level (in m.a.s.l.) from six gauging stations along Three Gorges Reservoir and discharge data for the period January to November 2018. And the relative water level and vertical profiles of flow velocity were measured in the middle (Xiakou) and upper reach (Pingyikou) of Xiangxi bay by two RDI ADCP from September 16 - October 12, 2018. For water level, water depth and flow velocity, the respective time series were high-pass filtered with cut-off frequencies corresponding to periods of 36 h and 4 h (see excel files), respectively (half-power frequencies of a zero-phase, 20-pole Butterworth filter). Power spectra were calculated using Welch’s method. Horizontal current velocities were measured in earth coordinates and rotated into longitudinal (along the river channel) and transversal velocity components by rotation into the respective mean (depth and temporarily averaged) flow direction at the sampling sites (see 'long_trans_vel.mat'). </p>
Figure 3 in Growth, sexual maturity and sexual dimorphism of (Decapoda: Anomura: Aeglidae) in a tributary of the Ibicuí River in southern Brazil
Figure 3. Absolute frequency distribution of cephalothoracic length (CL) (mm) classes of Aegla georginae females, Perau Creek, Ibicuí Basin, Brazil.
Рис. 7–16. Carabus (Ophiocarabus) spp., генитаΛии самцов, виà сбоку (7–11 – меÃиаΛьная ÃоΛя эÃеагуса; 12–16 – энÃофаΛΛус). 7–8, 12–13 – C. ernsti ulastaiensis subsp. n., паратипы; 9–10, 14–15 – C. ernsti ernsti Kabak, 2002: 9, 14 – с гор к запаÃу от реки Сарык, 10, 15 – из ÃоΛины правого притока реки Сарык; 11, 16 – C. ernsti nilkiensis Kabak, 2014: 11 – гоAотип, 12 – паратип. ml – меÃиаΛьный бугор; pp – препуциаΛьный бугор; rbll – правый базоΛатераΛьный бугор. Figs 7–16. Carabus (Ophiocarabus) spp., male genitalia, lateral view (7–11 – medial lobe of the aedeagus; 12–16 – endophallus). 7–8, 12–13 – C. ernsti ulastaiensis subsp. n., paratypes; 9–10, 14–15 – C. ernsti ernsti Kabak, 2002: 9, 14 – from the locality in mountains to the West of the Saryk River, 10, 15 – from the locality in right tributary of the Saryk River; 11, 16 – C. ernsti nilkiensis Kabak, 2014: 11 – holotype, 12 – paratype. ml – median lobe; pp – praeputial pad; rbll – right basolateral lobe. in New data on the taxonomy of the genus Carabus Linnaeus, 1758 (Coleoptera: Carabidae) from the Ili River basin (China)
Рис. 7–16. Carabus (Ophiocarabus) spp., генитаΛии самцов, виà сбоку (7–11 – меÃиаΛьная ÃоΛя эÃеагуса; 12–16 – энÃофаΛΛус). 7–8, 12–13 – C. ernsti ulastaiensis subsp. n., паратипы; 9–10, 14–15 – C. ernsti ernsti Kabak, 2002: 9, 14 – с гор к запаÃу от реки Сарык, 10, 15 – из ÃоΛины правого притока реки Сарык; 11, 16 – C. ernsti nilkiensis Kabak, 2014: 11 – гоAотип, 12 – паратип. ml – меÃиаΛьный бугор; pp – препуциаΛьный бугор; rbll – правый базоΛатераΛьный бугор. Figs 7–16. Carabus (Ophiocarabus) spp., male genitalia, lateral view (7–11 – medial lobe of the aedeagus; 12–16 – endophallus). 7–8, 12–13 – C. ernsti ulastaiensis subsp. n., paratypes; 9–10, 14–15 – C. ernsti ernsti Kabak, 2002: 9, 14 – from the locality in mountains to the West of the Saryk River, 10, 15 – from the locality in right tributary of the Saryk River; 11, 16 – C. ernsti nilkiensis Kabak, 2014: 11 – holotype, 12 – paratype. ml – median lobe; pp – praeputial pad; rbll – right basolateral lobe.
Рис. 1–6. Carabus (Ophiocarabus) spp., общий виÃ. 1–2 – C. ernsti ulastaiensis subsp. n., паратипы: 1 – самец, 2 – самка; 3–4 – C. ernsti ernsti Kabak, 2002: 3 – самец из ÃоΛины правого притока реки Сарык, 4 – самец с гор к запаÃу от реки Сарык; 5–6 – C. ernsti nilkiensis Kabak, 2014, паратипы: 5 – самец, 6 – самка. Figs 1–6. Carabus (Ophiocarabus) spp., general view. 1–2 – C. ernsti ulastaiensis subsp. n., paratypes: 1 – male, 2 – female; 3–4 – C. ernsti ernsti Kabak, 2002: 3 – male from the locality in right tributary of the Saryk River, 4 – male from the locality in mountains to the West of the Saryk River; 5–6 – C. ernsti nilkiensis Kabak, 2014, paratypes: 5 – male, 6 – female. in New data on the taxonomy of the genus Carabus Linnaeus, 1758 (Coleoptera: Carabidae) from the Ili River basin (China)
Рис. 1–6. Carabus (Ophiocarabus) spp., общий виÃ. 1–2 – C. ernsti ulastaiensis subsp. n., паратипы: 1 – самец, 2 – самка; 3–4 – C. ernsti ernsti Kabak, 2002: 3 – самец из ÃоΛины правого притока реки Сарык, 4 – самец с гор к запаÃу от реки Сарык; 5–6 – C. ernsti nilkiensis Kabak, 2014, паратипы: 5 – самец, 6 – самка. Figs 1–6. Carabus (Ophiocarabus) spp., general view. 1–2 – C. ernsti ulastaiensis subsp. n., paratypes: 1 – male, 2 – female; 3–4 – C. ernsti ernsti Kabak, 2002: 3 – male from the locality in right tributary of the Saryk River, 4 – male from the locality in mountains to the West of the Saryk River; 5–6 – C. ernsti nilkiensis Kabak, 2014, paratypes: 5 – male, 6 – female.
Fig. 4 in New and previously known ectoparasitic monogenoids (Platyhelminthes) on native and non-native fishes from tributaries of the Usumacinta River basin (southern Mexico), a Neotropical transition zone
Fig. 4. Copulatory complexes of Ligictaluridus mirabilis (Mueller 1937; Klassen and Beverley-Burton (1985) on Southern blue catfish Ictalurus meridionalis (Ictaluridae) from the Usumacinta river basin (southern Mexico). A – copulatory complex in ventral view; B – copulatory complex in dorsal view. Abbreviations: mco – male copulatory organ; ap – accessory piece.
Fig. 1. Icelanonchohaptor tropicalis n in New and previously known ectoparasitic monogenoids (Platyhelminthes) on native and non-native fishes from tributaries of the Usumacinta River basin (southern Mexico), a Neotropical transition zone
Fig. 1. Icelanonchohaptor tropicalis n. sp. on the Usumacinta buffalo Ictiobus meridionalis (Catostomidae) from the Usumacinta river basin (southern Mexico). A – whole mount (composite, dorsal view); B – vagina; C – copulatory complex (ventral view); D – egg; E – Haptor; F – Hook. Abbreviations: mco – male copulatory organ; ap – accessory piece; sv – seminal vesicle.
Fig. 3 in New and previously known ectoparasitic monogenoids (Platyhelminthes) on native and non-native fishes from tributaries of the Usumacinta River basin (southern Mexico), a Neotropical transition zone
Fig. 3. Haptoral and copulatory complex sclerites of Heteropriapulus heterotylioides n. sp. on Pterygoplichthys pardalis (Loricariidae) from the Usumacinta river basin (southern Mexico). A, B, and C – copulatory complexes (A and C in dorsal view; B in ventral view); D – ventral anchor; E – hook; F, G and H – dorsal anchors; I and J – ventral bars; K and L – dorsal bars; M – vaginal tube.
Fig. 2. Heteropriapulus simplexioides n in New and previously known ectoparasitic monogenoids (Platyhelminthes) on native and non-native fishes from tributaries of the Usumacinta River basin (southern Mexico), a Neotropical transition zone
Fig. 2. Heteropriapulus simplexioides n. sp. on Pterygoplichthys pardalis (Loricariidae) from the Usumacinta river basin (southern Mexico). A – whole mount (composite, ventral view); B, C, and E – copulatory complexes; D – ventral anchor; F – dorsal anchor; G – hook; H – dorsal bar; I – ventral bar.
FIGURE 2 in Different stocks of Prochilodus lineatus along the Cinzas River basin: contributions from a free-flowing tributary in the Capivara Reservoir region, Paranapanema River basin (upper Paraná River)
FIGURE 2 | Results of Bayesian clustering analysis (STRUCTURE) forProchilodus lineatus samples obtained along in Laranjinha River (L1–L4), Cinzas River main channel (CI), Capivara Reservoir (CA), Tibagi River (TI) and a restocking event (ST). Estimates of the number of K groups based on mean likelihood Ln(K) (A) and ∆K statistic (B). Graphical representation based on K = 3 (C). Each column represents a different individual and the colors represent the probability membership coefficient of that individual for each genetic cluster.
FIGURE 1 in Different stocks of Prochilodus lineatus along the Cinzas River basin: contributions from a free-flowing tributary in the Capivara Reservoir region, Paranapanema River basin (upper Paraná River)
FIGURE 1 | Sampling locations for Prochilodus lineatus along the Capivara Reservoir region (Paranapanema River basin), including the Laranjinha River (L1–L4), Cinzas River main channel (CIU - upstream and CID - downstream from Salto Cavalcante falls), Capivara Reservoir (CA) and Tibagi River (TI), as well as the site (ST) of a restocking event in the Laranjinha River. Source: modified from Google Earth, 2018 (https://www.google.com.br/maps).
FIGURE 3 in Different stocks of Prochilodus lineatus along the Cinzas River basin: contributions from a free-flowing tributary in the Capivara Reservoir region, Paranapanema River basin (upper Paraná River)
FIGURE 3 | Results from mtDNA (D-Loop) of Prochilodus lineatus in Cinzas River basin, Capivara Reservoir and Tibagi River. A. Mismatch distributions of mitochondrial haplotypes for all samples. B. Haplotype network, including GenBank data revealing previous records of some haplotypes in Paraná River main channel (PR) and in the Pardo (PA), Mogi-Guaçu (MG), Verde (VE), Peixe (PE), Aguapeí (AG), and Iguaçu (IG) rivers. Circle sizes are proportional to haplotype frequency.
Data from Diel Studies of the vertical migration of Margalefidinium polykrikoides in a lower Chesapeake Bay tributary.
<p>This dataset is in support of the publication "Diel vertical migration rates of the harmful algal bloom dinoflagellate species <em>Margalefidinium polykrikoides</em> in a lower Chesapeake Bay tributary." published in Frontiers in Aquatic Microbiology. The paper provides field-derived estimates of <em>M. polykrikoides’</em> diel vertical migration (DVM) rates have been made in the Chesapeake Bay. In this study, we conducted four targeted field experiments to investigate the DVM of M. polykrikoides in the Lafayette River, a sub-tributary of the Chesapeake Bay. Vertical profiles of chlorophyll a fluorescence collected at least every 2 h over diel periods were used to track the DVM of M. polykrikoides during blooms. Here we provide two supporting data files: 1) vertical profile data collected during the diel studies; and 2) cell counts for vertically migrating dinoflagellate species present during the first three diel studies.</p>
Fig. 2 in Temporal variation in fish composition and abundance in a perennial tributary of the rio Paraguaçu, a little-known drainage in the Brazilian semi-arid region
Fig. 2. Canonical correspondence analysis ordination diagram of fish abundance data, with environmental variables, for the rainy period (November to March) and the dry period (April to October). G = Gillnet; C = Cast seine.
Fig. 1 in Temporal variation in fish composition and abundance in a perennial tributary of the rio Paraguaçu, a little-known drainage in the Brazilian semi-arid region
Fig. 1. Geographical location of the rio Paraguaçu drainage and of the sampling stretch in the rio Santo Antônio (black dot).
Fig. 2. a in Scientific Note Cytogenetic data on Astyanax jacuhiensis (Characidae) in the lago Guaíba and tributaries, Brazil
Fig. 2. a) C-banded karyotype of Astyanax jacuhiensis; b) AgNORs and c) C-banding on pair 8; d) Metaphase plate with Cbanding plus CMA staining (CB + CMA ) showing size heteromorphism of the NOR regions in pair 8 (arrows).
Fig. 4 in Fish assemblage structure in tributaries of the Meia Ponte River, Goiás, Brazil
Fig. 4. Mean scores of detrended correspondence analysis (DCA), controlling for seasons (rainy and dry) and positions (upper, intermediate and lower) (a = Axis 1; b = Axis 2).
Fig. 1 in Fish assemblage structure in tributaries of the Meia Ponte River, Goiás, Brazil
Fig. 1. Location of the sampling stations (black circles) in the Meia Ponte River basin in the State of Goiás, Brazil, and the cities in the region (open circles). Numbers are the sampling stations: 01 = Meia Ponte River; 02 = Inhumas River; 03 = Capoeirão stream; 04 = Gonçalves stream; 05 = Cachoeirão stream; 06 = Capivara stream; 07 = João Leite stream; 08 = Caldas stream; 09 = Sozinha stream; 10 = Dourado River; 11 = Aborrecido stream; 12 = Bonito stream; 13 = Meio stream; 14 = Bom Sucesso stream; 15 = Cachoeira stream; 16 = Santa Rita stream; 17 = Paraíso stream; 18 = São Pedro stream; 19 = Bocainas stream; 20 = Água Limpa stream; 21 = Formiga stream; 22 = Boa Vista do Rancho stream; 23 = São Domingos stream; 24 = Fundo stream; 25 = Lageado stream; 26 = Divisa stream; 27 = Neves stream; 28 = Boa Vista stream; 29 = Bebedouro stream; 30 = Sapê stream; 31 = Boa Vereda stream.
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