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1,017 results for “freshwater fish”
Figure 13 in A new family of neotropical freshwater fishes from deep fossorial Amazonian habitat, with a reappraisal of morphological characiform phylogeny (Teleostei: Ostariophysi)
Figure 13. Weberian apparatus of Tarumania walkerae, paratype, MZUSP 26245. Scale bar = 1 mm. bo, basioccipital; cl, claustrum; ex, exoccipital; in, intercalarium; na3–5, neural arch; os, os suspensorium; pp, parapophysis; sc, scaphium; sn, supraneural; so, supraoccipital; tr, tripus; vc, vertebral centrum.
FIGURE 13 in Two New Species And A Review Of The Inseminating Freshwater Fish Genus Monotocheirodon (Characiformes: Characidae) From Peru And Bolivia
FIGURE 13: Monotocheirodon kontos, MUSM 11250, female, 37.1 mm SL; gill rakers on first gill arch, lateral view, left side.
FIGURE 10 in Two New Species And A Review Of The Inseminating Freshwater Fish Genus Monotocheirodon (Characiformes: Characidae) From Peru And Bolivia
FIGURE 10: Monotocheirodon drilos, MUSM 11082, C&S, adult male, 43.5 mm SL; jaws and dentition, lateral view, left side, anterior at left.
FIGURE 9 in Two New Species And A Review Of The Inseminating Freshwater Fish Genus Monotocheirodon (Characiformes: Characidae) From Peru And Bolivia
FIGURE 9: Monotocheirodon drilos, MUSM 11082, adult male above, 33.6 mm SL and adult female, below, 33.0 mm SL.
FIGURE 6 in Two New Species And A Review Of The Inseminating Freshwater Fish Genus Monotocheirodon (Characiformes: Characidae) From Peru And Bolivia
FIGURE 6: Monotocheirodon pearsoni, CAS 59792, C&S, male, 29.4 mm SL; pelvic-fin rays, ventral view, left side.
FIGURE 1 in Two New Species And A Review Of The Inseminating Freshwater Fish Genus Monotocheirodon (Characiformes: Characidae) From Peru And Bolivia
FIGURE 1: Monotocheirodon pearsoni, CAS 59792, adult male above, 29.4 mm SL and adult female below, 35.5 mm SL.
FIGURE 5 in Two New Species And A Review Of The Inseminating Freshwater Fish Genus Monotocheirodon (Characiformes: Characidae) From Peru And Bolivia
FIGURE 5: Monotocheirodon pearsoni, CAS 59792, C&S, male, 29.4 mm SL; anal-fin rays, lateral view, left side.
FIGURE 14 in Two New Species And A Review Of The Inseminating Freshwater Fish Genus Monotocheirodon (Characiformes: Characidae) From Peru And Bolivia
FIGURE 14: Monotocheirodon kontos, MUSM11250, C&S, female, 37.1 mm SL; jaws and dentition, lateral view, left side, anterior at left.
FIGURE 8 in Two New Species And A Review Of The Inseminating Freshwater Fish Genus Monotocheirodon (Characiformes: Characidae) From Peru And Bolivia
FIGURE 8: Dorsal-fin height as function of standard length for Monotocheirodon drilos and M. kontos.
FIGURE 15 in Two New Species And A Review Of The Inseminating Freshwater Fish Genus Monotocheirodon (Characiformes: Characidae) From Peru And Bolivia
FIGURE 15: Spermatozoa of Monotocheirodon kontos, MUSM 6756, 38.1 mm SL. A, B: Longitudinal section of spermatozoa. Note lateral position of nucleus (n) relative to flagellar axis. Short midpiece containing mitochondria (m), several vesicles (v) and cytoplasmic canal (*) into which initial segment of flagellum fits (f). Proximal (p) and distal (d) centrioles located at very shallow nuclear fossa (B-inset) located near tip of nucleus. C-F: Cross section at different levels of nucleus showing strongly irregular nuclear outline, proximal centriole inside nuclear fossa (arrow), beginning of cytoplasmic canal (*) that houses initial segment of flagellum, elongate mitochondria between cytoplasmic canal and nuclear outline (E and F). Also note vesicles (v) visible along nuclear outline. G: Cross view at different levels of midpiece showing mitochondria accumulated especially at base of nucleus and decreasing progressively along midpiece. Cytoplasm of midpiece filled by vesicular system.
FIGURE 2 in Two New Species And A Review Of The Inseminating Freshwater Fish Genus Monotocheirodon (Characiformes: Characidae) From Peru And Bolivia
FIGURE 2: Monotocheirodon pearsoni, UMMZ 66485 (upper jaw), C&S, female, 26.3 mm SL, CAS 5792 (lower jaw), male, 29.4 mm SL, dentition, lateral view, left side, anterior at left.
FIGURE 7 in Two New Species And A Review Of The Inseminating Freshwater Fish Genus Monotocheirodon (Characiformes: Characidae) From Peru And Bolivia
FIGURE 7: Map of western South America showing collecting sites and type localities (black symbols) of species of Monotocheirodon. Squares: Monotocheirodon kontos; circles: M. drilos; triangle: M. pearsoni. Some symbols may represent more than one locality.
FIGURE 11 in Two New Species And A Review Of The Inseminating Freshwater Fish Genus Monotocheirodon (Characiformes: Characidae) From Peru And Bolivia
FIGURE 11: Spermatozoa of Monotocheirodon drilos (ANSP 143791, 33.9 mm SL). A, B: Longitudinal section of spermatozoa. Note lateral position of nucleus (n) in relation to flagellar axis and nuclear fossa (double arrow) near tip of nucleus; short midpiece contains cytoplasmic canal (asterisks) that houses initial segment of flagellum (f), mitochondria (m) that increase in number from tip of base of nucleus and several vesicles (v). Proximal centriole (p) inside first concavity of fossa and distal centriole (d) outside. C-H: Cross sections at different levels of nucleus showing branched format of first concavity of nuclear fossa (arrow), cytoplasmic canal (c) and initial segment of flagellum (f) running along nuclear outline. I-L: Cross sections at different levels of midpiece displaying mitochondria (m) concentrated mainly at base of nucleus and decreasing progressively along midpiece. Cytoplasm of midpiece filled by vesicular system (v). Electron dense dots (arrowhead) indicate connections of vesicles.
FIGURE 12 in Two New Species And A Review Of The Inseminating Freshwater Fish Genus Monotocheirodon (Characiformes: Characidae) From Peru And Bolivia
FIGURE 12: Monotocheirodon kontos, MUSM 6756, adult male above, 36.7 mm SL and adult females, 33.7 mm SL.
Arctic Biodiversity: Arctic Freshwater Fishes
Biogeography and other attributes for Arctic organisms, various sources.<p></p>
Figure 6 in Phylogenomics of Characidae, a hyper-diverse Neotropical freshwater fish lineage, with a phylogenetic classification including four families (Teleostei: Characiformes)
Figure 6. Phylogeny of Acestrorhamphidae and subfamilies Stethaprioninae, Pristellinae, Jupiabinae, Tyttobryconinae, and Hyphessobryconinae based on 1348 nuclear loci of ultraconserved elements (538 472 bp). Numbers near nodes represent bootstrap support.
Figure 4 in Phylogenomics of Characidae, a hyper-diverse Neotropical freshwater fish lineage, with a phylogenetic classification including four families (Teleostei: Characiformes)
Figure 4. Phylogeny of Characidae and subfamilies Aphyocharacinae, Cheirodontinae, Exodontinae, Tetragonopterinae, and Characinae based on 1348 nuclear loci of ultraconserved elements (538 472 bp). Numbers near nodes represent bootstrap support.
Figure 3 in Phylogenomics of Characidae, a hyper-diverse Neotropical freshwater fish lineage, with a phylogenetic classification including four families (Teleostei: Characiformes)
Figure 3. Phylogeny of Spintherobolidae and Stevardiidae and subfamilies Landoninae, Xenurobryconinae, Glandulocaudinae, Argopleurinae, Hemibryconinae, Stevardiinae, Planaltininae, Creagrutinae, and Diapominae based on 1348 nuclear loci of ultraconserved elements
Figure 2 in Phylogenomics of Characidae, a hyper-diverse Neotropical freshwater fish lineage, with a phylogenetic classification including four families (Teleostei: Characiformes)
Figure 2. Phylogenetic relationships of the major clades of Spintherobolidae, Stevardiidae, Characidae, and Acestrorhamphidae based on the 75% complete matrix of 1348 ultraconserved elements (575 taxa; 538 472 bp).
Figure 7 in Phylogenomics of Characidae, a hyper-diverse Neotropical freshwater fish lineage, with a phylogenetic classification including four families (Teleostei: Characiformes)
Figure 7. Phylogeny of Acestrorhamphidae and subfamilies Thayeriinae, Rhoadsiinae, Grundulinae, and Acestrorhamphinae based on 1348 nuclear loci of ultraconserved elements (538 472 bp). Numbers near nodes represent bootstrap support.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
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.