Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
65
datasets available to search
ShareScore release 0.9.0
Dataset results
65 results for “Odontesthes”
Fig. 2 in Ultrastructure of fresh and post thawed sperm of pejerrey Odontesthes bonariensis (Atheriniformes)
Fig. 2. Transmission electron microscopy photographs of fresh sperm samples: (A) Spermatozoa longitudinal section showing the transitional region of the flagellum and the classic nine doublets of microtubules (9+0), arrow. (B) Longitudinal section of the head and midpiece of a spermatid. (C) Transversal section of the midpiece showing the axoneme surrounded by mitochondria. N: Nucleus; P: Proximal centriole; D: Distal centriole; CC: Citoplasmic Channel; M: Mitochondria; F: Flagellum.
Fig. 4 in Ultrastructure of fresh and post thawed sperm of pejerrey Odontesthes bonariensis (Atheriniformes)
Fig. 4. Transmission electron microscopy photographs of pejerrey post thawed sperm showing different types of alterations. (A) Head with ruptured membranes (*). (B) Head with swollen and broken membrane (*). (C) Broken and swollen nuclear membrane (arrows) and alteration of the spatial orientation of mitochondria. (D) Ruptured and swollen membrane of the flagellum (arrows) with vesicles. (E) Tail around the head (arrows). N: Nucleus; M: Mitochondria; V: Vesicles.
Fig. 3 in Ultrastructure of fresh and post thawed sperm of pejerrey Odontesthes bonariensis (Atheriniformes)
Fig. 3. Transmission electron microscopy photographs of the flagellum. (A) Flagellum axoneme showing the typical 9+2 doublets of microtubules. (B) Transversal section of the flagellum showing the lateral extensions like "fins" in both sides (arrows). (C) Longitudinal section of the flagellum. F: Flagellum.
Fig. 2. After 73 in Osmotic induction marking with Alizarin Red S on juveniles of pejerrey, Odontesthes bonariensis (Atherinopsidae)
Fig. 2. After 73 days post-treatment, clear marks were observed for both marking procedures, in otoliths (Figs. 2a, b), scales (Figs. 2c, d) and caudal fin rays (Figs. 2e, f). The intensity of the signal in scales was higher in fish marked with OI+ARS (Fig. 2d). After 385 days, only marks in caudal fin rays were observed in fish treated with OI+ARS (Fig 2g). All control fish structures and, otoliths and scales for 385 days post- immersion showed no marks under fluorescence microscope (Fig. 2h). a, c, e: ARS treatment; b, d, f, g: OI+ARS treatment. Scale bar = 200 µm.
Fig. 8 in Populations of Odontesthes (Teleostei: Atheriniformes) in the Andean region of Southern South America: body shape and hybrid individuals
Fig. 8. Geometric Morphometric Analysis applied to O. hatcheri individuals. Left: plot of DF3 vs. DF2 showing means and 95% confidence intervals by sampling sites (locality labels as in Fig. 1) NIHL (white triangle), CDP (black circle), 7: PELE (gray square), PDA (black triangle), MITO (black diamond), CARI (white square), EPU (black and white diamond), RIV (gray circle), ROS (white diamond), AME (black square), CHU (gray diamond), MUS (gray triangle), LBA (white circle), and PUY (white triangle). Right: deformation grids correspond to a relative warps analysis involving only CDP, PDA, and NIHL and PUY. Arrowheads indicate displacement of landmarks relative to consensus. Shaded area remarks relative position of landmarks 5 (anterior insertion of the first dorsal fin) and 12 (distal tip of the pelvic fin onto fish body).
Fig. 6 in Populations of Odontesthes (Teleostei: Atheriniformes) in the Andean region of Southern South America: body shape and hybrid individuals
Fig. 6. Probability for taxonomically identified Odontesthes hatcheri individuals of being O. hatcheri (left) and probability of taxonomically identified O. bonariensis individuals of being O. bonariensis (right). Number of fish, median, quartiles, and data outside 10 and 90th percentile are indicated. Water bodies are named as in Fig. 1.
Fig. 5 in Populations of Odontesthes (Teleostei: Atheriniformes) in the Andean region of Southern South America: body shape and hybrid individuals
Fig. 5. Morphometric differences between species. DF1 and residual DF2 (of the regression of DF2 versus Standard length) vs. Standard length (SL). Odontesthes bonariensis (white circle), O. hatcheri (black circle), and presumptive hybrids (gray circle).
Fig. 4 in Populations of Odontesthes (Teleostei: Atheriniformes) in the Andean region of Southern South America: body shape and hybrid individuals
Fig. 4. Geometric Morphometric Analysis applied to Odontesthes individuals. RW2 versus RW1 and deformation grids (tied to group means) for Odontesthes bonariensis (white circle), O. hatcheri (black circle) and presumptive hybrids (gray circle). Arrowheads indicate displacement of landmarks relative to consensus. Shaded area shows relative position of landmarks 5 (anterior insertion of the first dorsal fin) and 12 (distal tip of the pelvic fin onto fish body).
Fig. 1 in Populations of Odontesthes (Teleostei: Atheriniformes) in the Andean region of Southern South America: body shape and hybrid individuals
Fig. 1. Distribution of O. hatcheri (light gray) and O. bonariensis (dark gray) described by Dyer (2006) and sampling localities: ULLM, Ullum Reservoir; CARZ, Carrizal Reservoir; NIHL, Nihuil Reservoir; D, Lake San Lorenzo; URRE, Lake Urre Lauquen; CDP, Casa de Piedra Reservoir; PELE, Lake Pellegrini; PDA, Piedra del Aguila Reservoir; MITO, Lake Morenito; CARI, Lake Carilafquen; EPU, Lake Epuyén; RIV, Lake Rivadavia; ROS, Lake Rosario; AME, Florentino Ameghino Reservoir; CHU, Chubut River at Los Altares; MUS, Lake Musters; LBA, Lake Buenos Aires; PUY, Lake Pueyrredón. White triangles show the location of the three hatcheries (Estación Hidrobiológica de Chascomús 35º36'S, 58º01'W, Estación de Piscicultura de Embalse 32º13'S, 64º29'W, and Estación de Piscicultura Río Limay 38º59'S, 68º14'W), sources of stocking practices.
Fig. 1 in The effect of rearing temperature in larval development of pejerrey, Odontesthes bonariensis - Morphological indicators of development
Fig. 1. Embryonic stages of pejerrey. A) One cell stage: bd, blastodisc; f, adherent filaments; od, oil droplets; pv, perivitelline space; B) Two cells stage: bm, blastomeres; C) Blastula stage: b, blastula; D) Animal pole view at 25% epiboly stage, es, embryonic shield; gr, germinal ring; E) Vitelline veins stage: ol, ocular lenses; op, optic capsule, ot; otic capsules; sod, single oil drop; F) Pectorals fins stage: bv, bile vesicle; pf, pectoral fins; vv, vitelline veins. G) Hatching: n, notochord; o, otoliths; sb, swim bladder; sod, single oil droplet. A-F) bar = 0.5 mm; G) bar = 1 mm.
Fig. 6 in The effect of rearing temperature in larval development of pejerrey, Odontesthes bonariensis - Morphological indicators of development
Fig. 6. Differences in the rate of fin fold restructuration among larvae. A-B) same age, same temperature and different finfold stages; C-D) same age, different temperature and different finfold stage; B-D) different temperature, same age and same finfold stage. A) 24ºC, 14 dph, TL=9.1 mm; B) 24ºC 14 dph, TL=11.7 mm; C) 17ºC 14 dph, TL=8.1 mm; D) 29ºC 14 dph, TL=11.1 mm. Bar = 1 cm.
Fig. 2. Fin fold reabsorption during larvae-juvenile transition. A in The effect of rearing temperature in larval development of pejerrey, Odontesthes bonariensis - Morphological indicators of development
Fig. 2. Fin fold reabsorption during larvae-juvenile transition. A) The characteristic lobulated caudal fin showing the first fin rays (arrowhead) and the straight notochord (arrow); B) The second segment appeared (arrowhead) and the ray started to be aligned with the rostro-caudal axis (arrow); C) The ray aligned with the rostro-caudal axis (arrow); D) The forked homocercal caudal fin; E) Bifurcation of the central fin rays (arrowhead); F) The remnant fin-fold between the anus and the anal fin; G) The body shape acquires the adult conformation. A-F, bar = 0.5 mm; G = 1 mm.
Fig. 5 in The effect of rearing temperature in larval development of pejerrey, Odontesthes bonariensis - Morphological indicators of development
Fig. 5. Body shape (DA applied on un-standardized residuals, N = 287, P <0.001). Discriminant function 2 versus discriminant function 1. Rearing temperature is indicated as black circles (FPT), triangles (MixPT) and black squares (MTP). Means and 95% confidence intervals correspond to FPT (circle), MixPT (triangle), and MTP (square).
Fig. 3 in The effect of rearing temperature in larval development of pejerrey, Odontesthes bonariensis - Morphological indicators of development
Fig. 3. Total length (A), body weight (B), both in logarithmic scale, and Condition Factor (C) in relation to days post hatching (dph) and water temperature. Female producing temperature (FPT, filled circles and solid line), mixed-sex producing temperature (MixPT, empty circles and long dashed line), and male producing temperature (MPT, triangles and medium size dashed line). Note that when Condition Factor is considered as a function of Total length (D) dispersion diminishes. Lineal regression lines are indicated in order to show the tendency. Regression coefficients and r2 are indicated in Table 3.
Fig. 5 in Assessment of condition in pejerrey Odontesthes bonariensis (Atheriniformes: Atherinopsidae) populations: which index works best?
Fig. 5. Distribution of maximum standard length from 74 sampled populations (adapted from Colautti et al., 2006).
Fig. 6 in Assessment of condition in pejerrey Odontesthes bonariensis (Atheriniformes: Atherinopsidae) populations: which index works best?
Fig. 6. Variability of weight-length regression slopes within lakes sampled at different years (adapted from Colautti et al., 2006).
Fig. 3. a in Diet and trophic ecomorphology of the silverside, Odontesthes bonariensis, of the Salto Caxias reservoir, rio Iguaçu, Paraná, Brazil
Fig. 3. a) Position and form of the mouth of O. bonariensis; b) left gill rackers; c) digestive tract.
Fig. 2 in Diet and trophic ecomorphology of the silverside, Odontesthes bonariensis, of the Salto Caxias reservoir, rio Iguaçu, Paraná, Brazil
Fig. 2. Proportion of the food items in the diet of the O. bonariensis representing by Costello's method.
Fig. 4 in Diet and trophic ecomorphology of the silverside, Odontesthes bonariensis, of the Salto Caxias reservoir, rio Iguaçu, Paraná, Brazil
Fig. 4. Odontesthes bonariensis numerical abundance (CPUE), before and after the Salto Caxias damming.
Fig. 1. Fresh pejerrey spermatozoa stained with eosin. H in Ultrastructure of fresh and post thawed sperm of pejerrey Odontesthes bonariensis (Atheriniformes)
Fig. 1. Fresh pejerrey spermatozoa stained with eosin. H: Head; MP: Midpiece; F: Flagellum.
ScienceDex guides
Understand access before you commit
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.