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.
84
datasets available to search
ShareScore release 0.9.0
Dataset results
84 results for “Gomphonema”
FIGURES 2–17 in Gomphonema frequentiformis (Metzeltin & Krammer) comb. nov. (Bacillariophyta): ecology and taxonomy of a Neotropical diatom
FIGURES 2–17. Gomphonema frequentiformis comb. nov. LM. Fig. 2. Raphe length measures taken from the helictoglossa at the apical pole (A) and footpole (B) until central raphe endings. Figs 3–17. Size reduction series of a population from the Negro River. Fig. 18. Boxplot results of paired measurements taken (n=30). T-test two-tailed P <0.0001, considered extremely significant different. Scale bar = 10 µm.
FIGURE 1. A in Gomphonema frequentiformis (Metzeltin & Krammer) comb. nov. (Bacillariophyta): ecology and taxonomy of a Neotropical diatom
FIGURE 1. A) Distribution of Gomphonema frequentiformis comb. nov. in South America; B) Sampling sites located on the left bank of the Negro River, in the vicinity of Manaus city, Brazilian Amazon; C) Distribution of Gomphonema frequentiformis in the sampling stations 1 to 12 at Manaus (AM, Brazil).
TABLE 1 in Gomphonema rajaguruii sp. nov., a new diatom (Bacillariophyceae) species from the Western Ghats, India
<p><b>TABLE 1.</b> Comparison between the morphologically similar species and <i>Gomphonema rajaguruii sp. nov.</i> from the different sources. (<i>—</i> indicates unknown)</p><table><tbody><tr><th><b>Features / Species</b></th><th><i>Gomphonema rajaguruii sp. nov</i></th><th><b><i>Gomphonema kallarense</i> Pardhi <i>et al</i>. 2020</b></th><th><b><i>Gomphonema lujanense</i> E. Reichardt & Maidana 2008</b></th><th><b><i>Gomphonema pseudointermedium</i> E. Reichardt 2008</b></th><th><b><i>Gomphonema zellense</i> E. Reichardt 1999</b></th><th><b><i>Gomphonema supertergestinum</i> E. Reichardt 2009</b></th><th><b><i>Gomphonema irroratum</i> Hustedt 1945</b></th></tr></tbody><tbody><tr><th><b>Valve length (μm)</b></th><td>45.5–71.0</td><td>32.9–46.6</td><td>176.4–52.6</td><td>28.0–55.0</td><td>27.0–60.0</td><td>22.0–52.0</td><td>24.0–37.0</td></tr><tr><th><b>Valve width (μm)</b></th><td>8.8–12.8</td><td>6.8–9.1</td><td>5.6–9.0</td><td>6.6–7.7</td><td>9.2–11.0</td><td>7.0–9.0</td><td>5.5–7.5</td></tr><tr><th><b>Valve shape</b></th><td>Lanceolate - Rhombic</td><td>Lanceolate-clavate</td><td>Lanceolate-clavate</td><td>Clavate</td><td>Clavate</td><td>Lanceolate to elliptic</td><td>Clavate</td></tr><tr><th><b>Head pole</b></th><td>Slightly broadly rounded towards pole</td><td>Broadly rounded, almost flat, slight capitate</td><td>Bluntly rounded or truncate with small pore field</td><td>Obtusely rounded</td><td>Rounded</td><td>Broadly rounded</td><td>Broadly rounded</td></tr><tr><th><b>Foot pole</b></th><td>Narrowly rounded, elongated towards pole</td><td>Narrow rounded</td><td>Narrow rounded</td><td>Narrow rounded</td><td>Rounded</td><td>Narrowly rounded</td><td>Rounded</td></tr><tr><th><b>Striae (10 μm)</b></th><td>9–10 in central area 10–12 towards poles</td><td>9–13</td><td>7–12</td><td>10–11</td><td>8–10</td><td>9–12</td><td>14–16</td></tr><tr><th><b>Striae pattern (Head to Centre)</b></th><td>Slightly radiate from head pole to central valve</td><td>Slight radiate</td><td>Moderately radiate</td><td>Strongly radiate</td><td>Radiate</td><td>Radiate</td><td>Strongly Radiate</td></tr><tr><th><b>Striae pattern (Centre to Foot)</b></th><td>Strongly radiate towards the foot pole</td><td>Radiate</td><td>Radiate</td><td>Weakly radiate</td><td>Slightly radiate</td><td>Parallel</td><td>Radiate</td></tr><tr><th><b>Areolae (10 μm)</b></th><td>60–70</td><td>60–70</td><td><b>—</b></td><td><b>—</b></td><td>22–26</td><td><b>—</b></td><td>30–35</td></tr><tr><th><b>Areolae pattern</b></th><td>Biseriate, slit-shaped, aligned alternatively</td><td>Biseriate, slit-shaped, aligned alternatively</td><td>Biseriate, slit-shaped, aligned alternatively</td><td>Mostly biseriate, slit-shaped</td><td>Uniseriate and Partially biseriate</td><td>Biseriate, Round</td><td>Biseriate, round</td></tr><tr><th><b>Raphe</b></th><td>Weakly undulate</td><td>Lateral to undulate</td><td>Lateral</td><td>Lateral fissure somewhat undulate</td><td>Narrow, Lateral</td><td>Lateral or filiform</td><td>Lateral, undulated</td></tr><tr><th><b>Axial area (size)</b></th><td>Slightly broader, linear to lanceolate</td><td>Broad to narrow, lanceolate</td><td>Moderately narrow, linear to lanceolate</td><td>Narrow, linear</td><td>Narrow, linear</td><td>Narrow, linear</td><td>Narrow, linear to lanceolate</td></tr><tr><th><b>Central area</b></th><td>Distinct, small</td><td>Distinct, small</td><td>Unilaterally widened with one greatly shortened stria</td><td>Small</td><td>Large to nearly rectangular</td><td>Distinct, Extended to the edge, Very short striae</td><td>Small, irregular to elliptic</td></tr><tr><th><b>Pseudoseptum</b></th><td>Present</td><td>Present</td><td><b>—</b></td><td><b>—</b></td><td>Absent</td><td>Present</td><td><b>—</b></td></tr><tr><th><b>Stigma Externally</b></th><td><b>Oval</b></td><td>Round</td><td>Round</td><td>Round</td><td>Round</td><td>Round</td><td>1</td></tr><tr><th><b>Habitat</b></th><td>Wet wall</td><td>Stream</td><td>River</td><td>Lake</td><td>Lake</td><td>Lake</td><td>Lake</td></tr><tr><th><b>Type locality</b></th><td>Mahabaleshwar, Maharashtra, India</td><td>Kallar stream, Kerala, India</td><td>Lujan river, Argentina</td><td>Inley Lake, Burma</td><td>Zellsee Lake, Germany</td><td>Brandenburg, Germany</td><td>Balkan Highlands, Balkan Peninsula</td></tr><tr><th><b>Reference</b></th><td>Present study</td><td>Pardhi <i>et al</i>. (2020)</td><td>Reichardt (2008)</td><td>Reichardt (2008)</td><td>Reichardt (1999)</td><td>Reichardt (2009)</td><td>Hustedt (1945)</td></tr></tbody></table>
FIGURES 15–20 in A new species of Gomphonema (Bacillariophyta) from Xingkai Lake, China
FIGURES 15–20. Gomphonema subinsigniforme sp. nov. SEM, external views. Fig. 15. External view of entire valve. Fig. 16. Detail of headpole with deflected distal raphe fissure. Fig. 17. Central area showing dilated proximal raphe end (arrow) and rounded stigma opening. Fig. 18. Detail of apical pore field. Arrow indicates elongated porelli and variable size and shape. Fig. 19. Detail of stigmal opening (arrow). Fig. 20. Detail of areolar structure. Scale bars = 5μm (Fig. 15), 2.5μm (Fig. 17), 2μm (Fig. 16), 1μm (Fig. 19), 0.5μm (Figs 18, 20).
FIGURES 21–26 in A new species of Gomphonema (Bacillariophyta) from Xingkai Lake, China
FIGURES 21–26. Gomphonema subinsigniforme sp. nov. SEM, internal views. Fig. 21. Interior view of entire valve. Fig. 22. Detail of central nodule, showing curvature of proximal raphe end (black arrow) and slit-like stigmal opening (white arrow). Fig. 23. Detail of helictoglossa, offset from raphe branch (white arrow) and pseudoseptum at footpole (black arrow). Fig. 24. Detail of helictoglossa (black arrow) and pseudoseptum at headpole (white arrow). Figs 25, 26. Detail of areolae within deep troughs. Scale bars =5μm (Fig. 21), 2μm (Figs 22–24), 0.5μm (Figs 25–26).
FIGURES 28–30 in Gomphonema rajaguruii sp. nov., a new diatom (Bacillariophyceae) species from the Western Ghats, India
FIGURES 28–30. SEM images of internal valve view showing marginal lamina of Gomphonema rajaguruii sp. nov. 28. Broken valve shows the internal mantle with marginal lamina. 29. Zoom image of siliceous thickening extended from the frustule margin with a series (3–4) of solitary pores present (white arrow). 30. Broken valve with robust interstriae costae (white arrow) fused into a marginal lamina. Scale bars = 1 μm.
FIGURES 21–27 in Gomphonema rajaguruii sp. nov., a new diatom (Bacillariophyceae) species from the Western Ghats, India
FIGURES 21–27. SEM images of internal valve view of Gomphonema rajaguruii sp. nov. 21. An entire valve. 22, 23. Head pole, distal raphe ends with pseudoseptum and helictoglossa. 24, Foot pole, distal raphe ends with pseudoseptum and helictoglossa. 25. APF (white arrow) partially covered by pseudoseptum. 26. Central area with internally-projecting central nodule slit-like stigma opening (white arrow) with curved proximal raphe ends. 27. Zoom image of rounded areolae arranged alternately. Scale bars = 1 μm.
FIGURES 1–12 in Gomphonema rajaguruii sp. nov., a new diatom (Bacillariophyceae) species from the Western Ghats, India
FIGURES 1–12. Gomphonema rajaguruii sp. nov. LM. Size dimension diminution series. Figure 7 is the holotype. Scale bar: 10 μm.
FIGURES 13–20 in Gomphonema rajaguruii sp. nov., a new diatom (Bacillariophyceae) species from the Western Ghats, India
FIGURES 13–20. SEM images of the external valve view of Gomphonema rajaguruii sp. nov. 13, 14. An entire valve. 15. Biseriate striae with slit-shaped areolae. 16, 20. Striae continuing extending onto the valve mantle. White arrow in Fig. 20. shows series of solitary pores on the valve mantle. 17. Distal raphe ends deflected onto valve mantle before the apices. 18. Teardrop-shaped proximal raphe ends slightly deflected towards an isolated transapically elongated oval-shaped stigma opening (white arrow). 19. Footpole, raphe bisects the bilobed APF, restricted to the mantle. Scale bars = 1 μm.
Figure 4 in Gomphonema incrassata sp. n., a new benthic diatom species (Bacillariophyceae: Gomphonemataceae) from Walayar Dam, Palakkad district, Kerala, India
Figure 4. Scanning electron microscopic image of Gomphonema incrassata sp. n.
Figure 3 in Gomphonema incrassata sp. n., a new benthic diatom species (Bacillariophyceae: Gomphonemataceae) from Walayar Dam, Palakkad district, Kerala, India
Figure 3. Outer layer of Gomphonema incrassata sp. n.
FIGURES 1–24 in The diatom genus Gomphonema Ehrenberg in Lake Baikal. II. Revision of taxa from Gomphonema acuminatum and Gomphonema truncatum-capitatum complexes
FIGURES 1–24. LM. 1–21. Gomphonema acuminatum. 22–24. Gomphonema brebissonii. Scale bar = 10 μm.
FIGURES 25–45 in The diatom genus Gomphonema Ehrenberg in Lake Baikal. II. Revision of taxa from Gomphonema acuminatum and Gomphonema truncatum-capitatum complexes
FIGURES 25–45. Gomphonema acuminatum. LM. Scale bar = 10 μm.
FIGURES 119–166 in The diatom genus Gomphonema Ehrenberg in Lake Baikal. II. Revision of taxa from Gomphonema acuminatum and Gomphonema truncatum-capitatum complexes
FIGURES 119–166. LM. 119–166. Gomphonema angusticephalum. Scale bar = 10 μm.
FIGURE 32–47 in Two new diatom species (Bacillariophyceae) from Brazilian floodplain: Actinella hermes-moreirae sp. nov. and Gomphonema mutunensis sp. nov.
FIGURE 32–47. Gomphonema mutunensis sp. nov. LM. Valve view from type material. Scale bar = 10 μm.
FIGURES 4–11 in Two multi-stigmate Gomphonema species of Africa: Gomphonema kalahariense (nom. nov., stat. nov.) and Gomphonema chemeron (sp. nov.)
FIGURES 4–11. Light microscope images of Gomphonema kalahariense. Scale bar = 10 µm.
FIGURE 3 in Two multi-stigmate Gomphonema species of Africa: Gomphonema kalahariense (nom. nov., stat. nov.) and Gomphonema chemeron (sp. nov.)
FIGURE 3. Positions of 25-point landmark analysis of multi-stigmate Gomphonema used in this study.
FIGURE 1 in Two multi-stigmate Gomphonema species of Africa: Gomphonema kalahariense (nom. nov., stat. nov.) and Gomphonema chemeron (sp. nov.)
FIGURE 1. Original line drawing of 'Gomphonema ventricosum var. africana' from Reichelt (1903).
FIGURES 20–27 in Two multi-stigmate Gomphonema species of Africa: Gomphonema kalahariense (nom. nov., stat. nov.) and Gomphonema chemeron (sp. nov.)
FIGURES 20–27. Light microscope images of Gomphonema chemeron. Scale bar = 10 µm.
FIGURES 1–21 in Gomphonema supersaprophilum sp. nov., a new diatom species (Gomphonemataceae, Bacillariophyceae) from Flemish rivers (Belgium)
FIGURES 1–21. Gomphonema supersaprophilum Van de Vijver & E.Reichardt, sp. nov. LM and SEM images taken from the holotype sample (BR-4831, Devebeek, Ingelmunster, Wet-Vlaanderen, Belgium, sample APM23-73). 1–20. LM views of the population arranged in decreasing length. 21. SEM external view of an entire valve. Scale bars = 10 µm.
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.