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138 results for “Clarias”
Fig. 5 in Tegumental topography and molecular characterisation of two trematodes (Platyhelminthes: Digenea) from Clarias gariepinus (Burchell, 1822) in Kenya
Fig. 5. Phylogenetic relationships of Tylodelphys mashonensis (Sudarikov, 1971) to other Diplostomidae based on cox1. Phylogram was reconstructed using Bayesian Inference (BI) with Diplostomum spathaceum (Rudolphi, 1819) as an outgroup. Nodal values <0.90 (BI) are indicated by dashes (sequences of the present study are highlighted in bold).
Fig. 3 in Tegumental topography and molecular characterisation of two trematodes (Platyhelminthes: Digenea) from Clarias gariepinus (Burchell, 1822) in Kenya
Fig. 3. Phylogenetic relationships of Glossidium pedatum Loos, 1899 to other members of Plagiorchioidea based on 28S rDNA. Phylogram was reconstructed using Bayesian Inference (BI) with Alloglossidium corti (Lamont, 1921) as an outgroup. Nodal values <0.90 (BI) are indicated by dashes (sequences of the present study are highlighted in bold).
Fig. 1 in Tegumental topography and molecular characterisation of two trematodes (Platyhelminthes: Digenea) from Clarias gariepinus (Burchell, 1822) in Kenya
Fig. 1. Geographical location of the study area: A– Kenya shaded on the African continent; B – shows position of Nyandarua County in Kenya; C – indicates the position of the Lake Ol'Bolossat and the sampling sites (S1–S3).
Fig. 4 in Tegumental topography and molecular characterisation of two trematodes (Platyhelminthes: Digenea) from Clarias gariepinus (Burchell, 1822) in Kenya
Fig. 4. Scanning electron micrographs of Tylodelphys mashonensis. (A) ventral surface ultrastructure, (B) sensory papillae surrounding the oral sucker (C) ventral sucker surrounded by small and large papillae, (D) well organized holdfast organ with spines (abbreviations: ps-pseudo suckers, os-oral sucker, ho- holdfast organ, vs-ventral sucker, pp-papillae, sp-symmetrical papillae, lp- large papillae, hf-holdfast fissure).
Figure 2 in Description of three new species of Quadriacanthus (Monogenea: Ancyrocephalidae) gill parasites of Clarias submarginatus (Siluriformes: Clariidae) from Lake Ossa (Littoral region, Cameroon)
Figure 2. Morphometrics of Quadriacanthus spp. used in this study are based on GUSSEV (1962) and modified by N'DOUBA et al. (1999). (An) Anchor: (a) length, (ba) base width, (e) point length; (Cc) copulatory complex: (Ap) accessory piece length, (Pe) penis length; (Cn) cuneus: (j) length, (i) width; (Db) dorsal bar: (ct) centre length, (h) median process length, (w) width, (x) length, (H) hooklet length; (Vb) ventral bar: (w) width, (x) length, (Vg) vagina.
Fig. 2 in Clarias Nigricans, A New Species Of Clariid Catfish (Teleostei: Siluriformes) From Eastern Borneo
Fig. 2. Dorsal views of heads of: a. Clarias nigricans, ZRC 45590, 197.4 mm SL; b. C. nieuhofii, ZRC 38978, 202.5 mm SL. Scale bar represents 10 mm.
Fig. 4 in Clarias Nigricans, A New Species Of Clariid Catfish (Teleostei: Siluriformes) From Eastern Borneo
Fig. 4. Right pectoral spines of: C. nigricans, ZRC 45590, 197.4 mm SL; b. C. nieuhofii, ZRC 43219, 186.2 mm SL. Scale bar represents 1 mm.
Fig. 3. Scatterplots for C. nigricans and C in Clarias Nigricans, A New Species Of Clariid Catfish (Teleostei: Siluriformes) From Eastern Borneo
Fig. 3. Scatterplots for C. nigricans and C. nieuhofii of head width (HW) against standard length (SL).
Figure 2 in Standard weight equations of two sub-/tropic nonnative freshwater fish, Clarias gariepinus and Oreochromis niloticus, in the Sakarya River Basin (NW Turkey)
Figure 2. Distribution of the residuals used to investigate potential length-bias in the standard weight (W ) equation for C. gariepinus (a) and O. niloticus (b) from the s Sakarya River Basin (residuals = standardized residuals of the regression; fitted values = values obtained by the model fit).
Figure 1 in Standard weight equations of two sub-/tropic nonnative freshwater fish, Clarias gariepinus and Oreochromis niloticus, in the Sakarya River Basin (NW Turkey)
Figure 1. Area of collection of the data (black rectangle = Sakarya River Basin; yellow dots = locations of the field stations within the Sakarya River Basin) (courtesy of Google Earth).
Fig. 2 in Oxidative stress biomarkers in the African sharptooth catfish, Clarias gariepinus, associated with infections by adult digeneans and water quality
Fig. 2. Monthly variation of physico-chemical parameters during the fish collection period, October 2016–September 2017. A– pH; B– Electrical conductivity; C– Temperature; D– Dissolved oxygen; E– Salinity; F– Turbidity; G– Total dissolved solids.
Fig. 1 in Oxidative stress biomarkers in the African sharptooth catfish, Clarias gariepinus, associated with infections by adult digeneans and water quality
Fig. 1. Various maps of the Incomati River showing the position of the sampling site. A– Mozambique shaded on the African continent; B– shows position of Maputo Province in Mozambique; C– indicates the position of the Incomati River and the sampling site.
Fig. 5 in Oxidative stress biomarkers in the African sharptooth catfish, Clarias gariepinus, associated with infections by adult digeneans and water quality
Fig. 5. Principal Component Analysis (PCA) of physico-chemical variables, biomarkers and parasitism in Clarias gariepinus collected in the Incomati River in Mozambique. Two principal components (PC1 and PC2) explained 45.45% of the total variation between water variables, biomarkers and occurrence of parasites. The EC, TDS and salinity (SAL) are associated with Component 1 while LPX, CAT, SOD, turbidity (TB) and temperature (T) are negatively associated with these variables. CI = co-infection; IM = M. nkomatiensis intensity; IG = G. pedatum intensity, UN = uninfected.
Fig. 10 in Camallanid nematodes from Clarias gariepinus (Burchell, 1822) in the Crocodile River, Gauteng, South Africa: Exploring diversity and divergence in an acid-mine drainage impacted environment
Fig. 10. Bar graphs showing the ratio of life stages and sexes in each sample. A- Procamallanus (Procamallanus) pseudolaeviconchus Moravec and van As, 2015. B- Paracamallanus cyathopharynx (Baylis, 1923). Prevalence of each group in each month is given in the line graphs. F = female, M = male, L = larvae, US = unknown sex.
Fig. 8 in Camallanid nematodes from Clarias gariepinus (Burchell, 1822) in the Crocodile River, Gauteng, South Africa: Exploring diversity and divergence in an acid-mine drainage impacted environment
Fig. 8. Lateral view of isolated buccal capsules of Paracamallanus specimens, morphotypes A and B. (i). Brightfield. (ii). Epifluorescence [Filter-set 09 (Ex. 470/40)]. (iii). SEM. 1 = anterior part of posterior capsule; 2 = posterior part of posterior capsule; t = trident; ellipse = elliptical shape of capsule; rectangle = rectangular shape of capsule.
Fig. 9 in Camallanid nematodes from Clarias gariepinus (Burchell, 1822) in the Crocodile River, Gauteng, South Africa: Exploring diversity and divergence in an acid-mine drainage impacted environment
Fig. 9. Principal Component Analyses (PCA) of Paracamallanus morphometry collected from Clarias gariepinus (Burchell, 1822). A- PCA using morphometric ratios for both males and females. B- PCA using buccal capsule ratios for both males and females. Each parasite is indicated as a dot, with the fill, shape and colour corresponding to morphotype and lineage (refer to key). F = female; M = male.
Fig. 5 in Camallanid nematodes from Clarias gariepinus (Burchell, 1822) in the Crocodile River, Gauteng, South Africa: Exploring diversity and divergence in an acid-mine drainage impacted environment
Fig. 5. Scanning electron micrographs of male Paracamallanus cyathopharynx (Baylis, 1923) from Clarias gariepinus (Burchell, 1822). A-posterior end, ventrolateral view, arrows show precloacal papillae; Bposterior end, ventral view, solid arrow shows right spicule, dashed arrow shows pair of adcloacal papillae, double arrows show postcloacal papillae; Cisolated right spicule, ventrolateral view, arrow shows shaft; D-right spicule tip, dorsal view; E– right spicule tip, ventral view, arrow shows ventral barb; Fisolated left spicule.
Fig. 3 in Camallanid nematodes from Clarias gariepinus (Burchell, 1822) in the Crocodile River, Gauteng, South Africa: Exploring diversity and divergence in an acid-mine drainage impacted environment
Fig. 3. Scanning electron micrographs of Procamallanus (Procamallanus) pseudolaeviconchus Moravec and van As, 2015 from Clarias gariepinus (Burchell, 1822). A-postequatorial region of female, vulva, ventral view; B- vulva, lateral view, arrows show lips; C- first-stage larva exiting vulva; D-posterior end of male, ventral view, solid arrows show pre-cloacal papillae, dashed arrows show post-cloacal papillae, circles show adcloacal papillae; D(i)- pedunculate papilla; E– isolated right spicule, lateral view, solid arrow shows shaft, dashed arrow shows spicule tip; E (i)- right spicule tip, arrow shows velum; F- posterior end of male, ventrolateral view, arrow shows right spicule; G-isolated left spicule, lateral view; G(i)- left spicule tip, arrow shows velum.
Fig. 2 in Camallanid nematodes from Clarias gariepinus (Burchell, 1822) in the Crocodile River, Gauteng, South Africa: Exploring diversity and divergence in an acid-mine drainage impacted environment
Fig. 2. Scanning electron micrographs of Procamallanus (Procamallanus) pseudolaeviconchus Moravec and van As, 2015 from Clarias gariepinus (Burchell, 1822). A-anterior end, lateral view; B- anterior end, apical view, solid arrow shows smooth peribuccal flange, dashed arrow shows marginal elevation; Cisolated buccal capsule, lateral view, arrow shows oesophagus; D-isolated buccal capsule, apical view, solid arrows show marginal elevations; E– buccal capsule interior, apical view, dashed arrow shows narrow ring, solid arrow shows basal ring; F- microdissected buccal capsule, lateral view, dashed arrow shows narrow ring, solid arrow shows basal ring; Ganterior region, lateral view, arrow shows excretory pore; G(i)- excretory pore, lateral view; H- lateral deirid, lateral view; I- lateral deirid, apical view. a = amphid; s = submedian papilla.
Fig. 7 in Camallanid nematodes from Clarias gariepinus (Burchell, 1822) in the Crocodile River, Gauteng, South Africa: Exploring diversity and divergence in an acid-mine drainage impacted environment
Fig. 7. Phylogram of Camallanidae based on CO1 mtDNA, with Spirocerca lupi (Rudolphi, 1809) as the outgroup. Procamallanus data and Paracamallanus lineage one (LI1) and two (LI2) from the present study are indicated in purple, orange and green, respectively. Nodal support presented for Bayesian inference and Maximum Likelihood approaches (BI/ML), with support lower than 0.75/75% excluded and support above 0.9/90% indicated by an asterisk (*).
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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