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.
77
datasets available to search
ShareScore release 0.7.1
Dataset results
77 results for “Cichla”
Fig. 5. Mean Gonadosomatic Index for C in Color pattern variation in Cichla temensis (Perciformes: Cichlidae): Resolution based on morphological, molecular, and reproductive data
Fig. 5. Mean Gonadosomatic Index for C. temensis variants grouped by CPV grade. a) Females from the Igapó Açú (Region 1). b) Females from the rio Caures (Region 2). c) Males from the Igapó Açú region. d) Males from the rio Caures. A significant correlation between GSI and CPV Grade was found for males and females in both collecting regions, p <.01 for a, b, d, and d.
Fig. 4 in Color pattern variation in Cichla temensis (Perciformes: Cichlidae): Resolution based on morphological, molecular, and reproductive data
Fig. 4. Maximum-likelihood phylogeny of 50 sequences sampled from the paca and açu variants of Cichla temensis (Genbank accession numbers HQ230011 - HQ230016) The phylogeny was rooted a posteriori with Cichla species of the clade A (sensu Willis et al. 2010) (GU295691- GU295704). The scale represents an HKY85 genetic distance.
Fig. 3. a in Color pattern variation in Cichla temensis (Perciformes: Cichlidae): Resolution based on morphological, molecular, and reproductive data
Fig. 3. a) Mean (± SEM) lateral line scale counts for C. temensis, C. monoculus, and C. orinocensis. ANOVA showed no significant differences among the C. temensis variants but revealed significant differences interspecifically. Post hoc t tests (horizontal starred bar) revealed that all species were significantly different, p <0.0001*. b) Mean (± SEM) body depth to Standard Length ratio (adjusted for gonad size differential) for C. temensis, C. monoculus, and C. orinocensis. ANOVA showed no significant differences among the C. temensis variants but revealed significant differences interspecifically. Post hoc t tests (horizontal starred bar) revealed that all C. temensis were significantly different from both sympatric species, p <0.0001*.
Fig. 2 in Color pattern variation in Cichla temensis (Perciformes: Cichlidae): Resolution based on morphological, molecular, and reproductive data
Fig. 2. Collecting regions in two cyclically flooding drainages in the rio Amazon basin. Region 1, the Igapó-Açu region, a blackwater tributary complex of the rio Madeira, provided specimens of C. temensis and C. monoculus. Region 2, the rio Caures, a blackwater tributary of the rio Negro, provided specimens of C. temensis and C. orinocensis.
Fig. 5 in Weight-length relationship, condition factor and blood parameters of farmed Cichla temensis Humboldt, 1821 (Cichlidae) in central Amazon
Fig. 5. Blood cells in tucunaré C. temensis stained by MGGW. A - Erythrocytes, B - Polychromatic erythroblasts, C - Neutrophil, D - Monocyte, E - Lymphocyte, and F - Thrombocytes. Scale bars = 5 μm.
Fig. 3 in Weight-length relationship, condition factor and blood parameters of farmed Cichla temensis Humboldt, 1821 (Cichlidae) in central Amazon
Fig. 3. Relationshipbetweenhematocritandredbloodcells (r = 0.950; p<0.001) in C. temensis (n = 40) farmed in central Amazon.
Fig. 4 in Weight-length relationship, condition factor and blood parameters of farmed Cichla temensis Humboldt, 1821 (Cichlidae) in central Amazon
Fig. 4. Relationship between hematocrit and hemoglobin concentration (r = 0.860; p<0.001) in C. temensis (n = 40) farmed in central Amazon.
Fig. 8 in Reproductive cycle of the Neotropical cichlid yellow peacock bass Cichla kelberi: A novel pattern of testicular development
Fig. 8. Testicular morphological characteristics of the Regression phase in C. kelberi. (a) Testicular proximal region, highlighting the big volume of melano-macrophage centers (mmc). (b) Gonad in restructuration with details to the Sertoli cells phagocytizing (Sp) the residual sperm (rSz), and the apoptotic cells (double arrow). (c) Transversal section along the testis in Regression. (d) Testicular periphery (dorsal region) highlighting the intense proliferation of primary spermatogonia in this region (Sg). primary spermatogonial cluster (dotted line); I - interstitial tissue; Sp - Sertoli cell in phagocytosis; Sc1 - primary spermatocysts; Sg1 - primary spermatogonia; Sg2 - secondary spermatogonia. H.E. stain.
Fig. 7 in Reproductive cycle of the Neotropical cichlid yellow peacock bass Cichla kelberi: A novel pattern of testicular development
Fig. 7. Testicular morphological characteristics of Late GE Development phase in C. kelberi. (a) Longitudinal section of the main testicular duct (dt). (b) Germinal epithelium discontinuity in the distal region of the testicular lobules (asterisk). (c) Spermatogenic cysts in different development phases, highlighting the spermatocytes cyst in metaphase (mt) of the first meiotic division. (d) Discontinuity of the germinal epithelium along the testicle. H.E. stain. Egd - discontinuous germinal epithelium; mmc - melano-macrophage centers; S - Sertoli cell; Sc1 - primary spermatocysts; Sg1 -primary spermatogonia; Sg2 - secondary spermatogonia cysts; St - spermatids cysts; Sz - sperm. H.E. stain.
Fig. 6 in Reproductive cycle of the Neotropical cichlid yellow peacock bass Cichla kelberi: A novel pattern of testicular development
Fig. 6. Testicular morphological characteristics of Mid GE Development phase in C. kelberi. (a and b) Testicular anastomosing region, highlighting the beginning of the germinal epithelium discontinuity (asterisk), in both the anastomosing region and lobules near the main testicular ducts. (c) Discontinuous germinal epithelium, with cysts in different development stages and lots of sperm (Sz) in the lobular lumen. (d) Peripheral lobular region (dorsal) highlighting the continuous germinal epithelium and clusters of primary spermatogonia (dotted line). ar - anastomosing region; dt - main testicular ducts; I - interstice; m - basal membrane; mt - metaphase; S - Sertoli cell; Sc1 - primary spermatocysts; Sg1 - primary spermatogonia; Sg2 - secondary spermatogonia; St - spermatids; ta - tunica albuginea; cytoplasmic extension (hollow arrow). H.E. stain.
Fig. 5 in Reproductive cycle of the Neotropical cichlid yellow peacock bass Cichla kelberi: A novel pattern of testicular development
Fig. 5. Testicular morphological characteristics of Early GE Development phase in C. kelberi. (a) Main testicular duct region (dt), highlighting the narrow light (arrow). (b) Testicular lobules with continuous germinal epithelium (Egc) and germ cells cysts in different phases of spermatogenesis. (c) Germ cells cysts in different phases of spermatogenesis. (d) Distal lobular region, highlighting the germ cells clusters (dotted line). Bv - blood vessels; S - Sertoli cell; Sc1 - primary spermatocysts; Sg1 - primary spermatogonia; Sg2 - secondary spermatogonia; St - spermatids; ta - tunica albuginea. H. E. stain.
Fig. 1 in Reproductive cycle of the Neotropical cichlid yellow peacock bass Cichla kelberi: A novel pattern of testicular development
Fig. 1. Testicular structure of C. kelberi in transversal section. (a) Testis draft highlighting the different regions. (b) A lobule representation, highlighting the cystic type spermatogenesis and the unrestricted distribution of spermatogonia. (c) Testis ventral region, showing the main testicular duct (dt), anastomosing region (ar) and the beginning of the lobular region (L). Reticulin reaction. (d) Testis dorsal region, highlighting the blind end (double arrow) of the testicular lobules, which are formed by the connective tissue septa sent by tunica albuginea (ta). Reticulin reaction. c - spermatogonial clusters; I - interstice; S - Sertoli cell; Sc - spermatocyte; Sg - spermatogonia; St - spermatid.
Fig. 3 in Reproductive cycle of the Neotropical cichlid yellow peacock bass Cichla kelberi: A novel pattern of testicular development
Fig. 3. Structure of the germinal epithelium in C. kelberi. (a and b) germinal epithelium highlighting the spermatogenic cysts in distinct layers. H.E. stain. (c) Outline highlighting the maintenance of a continuous germinal epithelium after the higher layers cysts break. Sc1 - primary spermatocyte; St - spermatid; Sz - spermatozoa.
Fig. 4 in Reproductive cycle of the Neotropical cichlid yellow peacock bass Cichla kelberi: A novel pattern of testicular development
Fig. 4. Testicular morphological characteristics of the initial phases of C. kelberi gonadal development. (a) and (b) Immature phase: germinal epithelium showing a reduced number of primary spermatogonia (Sg1). (c) and (d) Preparatory phase: presence of lots of primary spermatogonia and cysts of secondary spermatogonia (Sg2). Mitotic figures are also observed in this phase, highlighting the spermatogonial proliferation (arrow).
Fig. 2 in Analysis of propagule pressure and genetic diversity in the invasibility of a freshwater apex predator: the peacock bass (genus Cichla)
Fig. 2. Structure bar plots of probabilities of assignment of each individual from populations of CP in green (1 - TOC, 2 - ITU, 3 - ML and 4 - FU) and CK in red (5 - TOC, 6 - ITU, 7 - TRM, 8 - RD). Probabilities of assignment (q) of each individual to each cluster are shown along the x-axis.
Fig. 5 in Geometric morphometric analysis of cyclical body shape changes in color pattern variants of Cichla temensis Humboldt, 1821 (Perciformes: Cichlidae) demonstrates reproductive energy allocation
Fig. 5. Relative mean GSI vs. relative mean HSI of color pattern variants of Cichla temensis. Points for GSI represent the mean value for each CPV grade as compared to the range encountered. Points for HSI represent the mean value for each CPV grade compared to the range encountered.
Fig. 3 in Geometric morphometric analysis of cyclical body shape changes in color pattern variants of Cichla temensis Humboldt, 1821 (Perciformes: Cichlidae) demonstrates reproductive energy allocation
Fig. 3. Biplot of the uniform components in each direction (UniX and UniY) of morphometrical differences in 80 specimens of Cichla temensis in 4 color variation patterns (CPV) as measured by 9 Thin Plate Spline (TPS) distortion variables (V1-V9). Colored numbers indicate the CPV grade of individuals. The total spread of scores among individuals of each CPV are indicated by an envelope (solid line polygon) calculated as the minimum convex hull for that group. Position in the plot relative to other individuals indicates the degree of similarity in morph. Vectors point in the direction of gradient change for that TPS variable and the magnitude indicates the strength of the gradient. Angles between vectors indicate the TPS interset correlations.
Fig. 4 in Growth of the Cichla temensis Humboldt, 1821 (Perciformes: Cichlidae) from the middle rio Negro, Amazonas, Brazil
Fig. 4. Variation in the condition factor (a), gonadosomatic index (b), and marginal relative increment (c) of Cichla temensis according to hydrological period and the water level of the middle rio Negro between October 2011 and September 2012.
Fig. 3 in Growth of the Cichla temensis Humboldt, 1821 (Perciformes: Cichlidae) from the middle rio Negro, Amazonas, Brazil
Fig. 3. Relationship between standard length (cm) and total scale radius (mm) of Cichla temensis from the middle rio Negro. SL = standard length; SR = scale radius.
Fig. 5 in Growth of the Cichla temensis Humboldt, 1821 (Perciformes: Cichlidae) from the middle rio Negro, Amazonas, Brazil
Fig. 5. Relative frequency distribution of RMI observed on scales of Cichla temensis from the middle rio Negro for each hydrological period.
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.