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.
2,991
datasets available to search
ShareScore release 0.9.0
Dataset results
2,991 results for “indian ocean”
FIGURE 10. Lepidochitona africana n in Chitons of the genus Lepidochitona (Mollusca: Polyplacophora) in the Indian Ocean and ordering of species compositions of some genera of the subfamily Tonicellinae
FIGURE 10. Lepidochitona africana n. sp., S. Africa, Port Alfred, holotype (ZIN 2433), BL 8.6 mm: A. Valve I, dorsal view; B. Valve II, dorsal view; C. Valve V, dorsal view; D. Valve VIII, dorsal view; E. Valve IV, ventral view; F. Valve V, detail of tegmentum surface of central area; G. Valve V, rostral view; H. Valve VIII, lateral view.
FIGURE 12. Lepidochitona africana n in Chitons of the genus Lepidochitona (Mollusca: Polyplacophora) in the Indian Ocean and ordering of species compositions of some genera of the subfamily Tonicellinae
FIGURE 12. Lepidochitona africana n. sp., S. Africa, Port Alfred, holotype (ZIN 2433), BL 8.6 mm: A. Radula; B. Central and first lateral teeth of radula.
FIGURE 8. Lepidochitona turtoni, S in Chitons of the genus Lepidochitona (Mollusca: Polyplacophora) in the Indian Ocean and ordering of species compositions of some genera of the subfamily Tonicellinae
FIGURE 8. Lepidochitona turtoni, S. Africa, False Bay, Glen Cairns, intertidal, narrow specimen, BL 7.0 mm: A. Short, narrow, rounded top spine; B. Dorsal spicule; C. Marginal smooth needle; D. Marginal ribbed needle; E. Ventral rectangular scale; F. Ventral ribbed scale; G. Central tooth and first lateral teeth of radula; H. Head of major lateral tooth of radula. Scale bar 100 µm.
FIGURE 9. Lepidochitona africana n in Chitons of the genus Lepidochitona (Mollusca: Polyplacophora) in the Indian Ocean and ordering of species compositions of some genera of the subfamily Tonicellinae
FIGURE 9. Lepidochitona africana n. sp., A, C, E, F, dorsal views, B, D, lateral views: A, B. S. Africa, False Bay, Glen Cairns, intertidal, paratype (ZIN 2435) BL 14.0 mm; C, D. S. Africa, Port Alfred, holotype (ZIN 2433), BL 8.6 mm; E. S. Africa, False Bay, Gordon's Bay Beach, paratype (ZIN 2437), BL 9.0 mm; F. S. Africa, Mpenjati, paratype (ZIN 2434), BL 7.7 mm.
FIGURE 7. Lepidochitona turtoni, S in Chitons of the genus Lepidochitona (Mollusca: Polyplacophora) in the Indian Ocean and ordering of species compositions of some genera of the subfamily Tonicellinae
FIGURE 7. Lepidochitona turtoni, S. Africa, False Bay, Glen Cairns, intertidal, narrow specimen, BL 7.0 mm: A. Radula; B. Central and first lateral teeth of radula.
FIGURE 4. Lepidochitona turtoni, S in Chitons of the genus Lepidochitona (Mollusca: Polyplacophora) in the Indian Ocean and ordering of species compositions of some genera of the subfamily Tonicellinae
FIGURE 4. Lepidochitona turtoni, S. Africa, False Bay, Glen Cairns, intertidal, wide specimen, BL 7.0 mm: A. Radula; B. Central and first lateral teeth of radula.
FIGURE 5. Lepidochitona turtoni, S in Chitons of the genus Lepidochitona (Mollusca: Polyplacophora) in the Indian Ocean and ordering of species compositions of some genera of the subfamily Tonicellinae
FIGURE 5. Lepidochitona turtoni, S. Africa, False Bay, Glen Cairns, intertidal, narrow specimen, BL 7.0 mm: A. Valve I, dorsal view; B. Valve II, dorsal view; C. Valve V, dorsal view; D. Valve VIII, dorsal view; E. Valve IV, ventral view; F. Valve V, detail of tegmentum surface of central area; G. Valve V, rostral view; H. Valve VIII, lateral view.
FIGURE 23. Lepidochitona pakistana n in Chitons of the genus Lepidochitona (Mollusca: Polyplacophora) in the Indian Ocean and ordering of species compositions of some genera of the subfamily Tonicellinae
FIGURE 23. Lepidochitona pakistana n. sp., Pakistan, W. of Karachi, Goth Jafar, low tide, holotype (CASIZ 235554), BL 4.4 mm: A. Needle of tuft; B, C. Dorsal spicules; D. Marginal smooth needle; E. Marginal ribbed needle; F. Ventral rectangular scale; G. Ventral scale; H. Central tooth and first lateral teeth of radula; I. Head of major lateral tooth of radula. Scale bar 100 µm.
FIGURE 3. Lepidochitona turtoni, S in Chitons of the genus Lepidochitona (Mollusca: Polyplacophora) in the Indian Ocean and ordering of species compositions of some genera of the subfamily Tonicellinae
FIGURE 3. Lepidochitona turtoni, S. Africa, False Bay, Glen Cairns, intertidal, wide specimen, BL 7.0 mm: A, B. Dorsal spicules, ventral scales and marginal needles; C. Dorsal spicules; D. Dorsal spicules, ventral scales and marginal needle, view from dorsal side.
FIGURE 1. Lepidochitona turtoni, S in Chitons of the genus Lepidochitona (Mollusca: Polyplacophora) in the Indian Ocean and ordering of species compositions of some genera of the subfamily Tonicellinae
FIGURE 1. Lepidochitona turtoni, S. Africa, False Bay, Glen Cairns, intertidal: A. Narrow specimen, BL 7.0 mm; B. Wide specimen, BL 7.0 mm.
FIGURE 16. Lepidochitona africana n in Chitons of the genus Lepidochitona (Mollusca: Polyplacophora) in the Indian Ocean and ordering of species compositions of some genera of the subfamily Tonicellinae
FIGURE 16. Lepidochitona africana n. sp., S. Africa, Mpenjati, paratype (ZIN 2434), BL 9.0 mm: A. Valve I, dorsal view; B. Valve II, dorsal view; C. Valve V, dorsal view; D. Valve VIII, dorsal view; E. Valve IV, ventral view; F. Valve V, detail of tegmentum surface of central area; G. Valve V, rostral view; H. Valve VIII, lateral view.
FIGURE 20. Lepidochitona pakistana n in Chitons of the genus Lepidochitona (Mollusca: Polyplacophora) in the Indian Ocean and ordering of species compositions of some genera of the subfamily Tonicellinae
FIGURE 20. Lepidochitona pakistana n. sp., Pakistan, W. of Karachi, Goth Jafar, low tide, holotype (CASIZ 235554), BL 4.4 mm: A. Valve I, dorsal view; B. Valve II, dorsal view; C. Valve V, dorsal view; D. Valve VIII, dorsal view; E. Valve IV, ventral view; F. Valve V, detail of tegmentum surface of central area; G. Valve V, rostral view; H. Valve VIII, lateral view.
FIGURE 22. Lepidochitona pakistana n in Chitons of the genus Lepidochitona (Mollusca: Polyplacophora) in the Indian Ocean and ordering of species compositions of some genera of the subfamily Tonicellinae
FIGURE 22. Lepidochitona pakistana n. sp., Pakistan, W. of Karachi, Goth Jafar, low tide, holotype (CASIZ 235554), BL 4.4 mm (B), paratype (CASIZ 019915) BL 3.0 mm (A, C) paratype (CASIZ 024429), BL 5.2 mm (D): A. Two kinds of ventral scales; B. Radula; C. Dorsal spicules, two rows of tufts with needles and two kinds of marginal needles; D. Central, first lateral and major lateral teeth of radula.
FIGURE 19. Lepidochitona pakistana n in Chitons of the genus Lepidochitona (Mollusca: Polyplacophora) in the Indian Ocean and ordering of species compositions of some genera of the subfamily Tonicellinae
FIGURE 19. Lepidochitona pakistana n. sp., Pakistan, W. of Karachi, Goth Jafar, low tide, paratype (CASIZ 019907), BL 4.4 mm.
Niche variation in sympatric delphinids: Indo-Pacific bottlenose and Indian Ocean humpback dolphins on the south-east coast of South Africa
The ecological interactions and mechanisms that mediate coexistence among species are often poorly understood, despite its relevance to conservation management. A case in point is the Indo-Pacific bottlenose dolphin (Tursiops aduncus) and Indian Ocean humpback dolphin (Sousa plumbea) that occur sympatrically along the south-east coast of South Africa. To improve on our understanding of their coexistence, data on spatial distribution and habitat use were collected using boat-based surveys during 2014-15 along 145 km between Goukamma and Tsitsikamma MPAs. During 235 hours of survey effort, 55 and 42 encounters with T. aduncus and S. plumbea were recorded respectively. We investigated differences in their space use and habitat preferences. There was a strong overlap of the core areas used by both species, located mainly along Goukamma MPA and the eastern section of Plettenberg Bay. For both species, foraging was observed in mornings and travelling in afternoons. T. aduncus showed a preference for rocky areas in the afternoon while S. plumbea preferred estuarine and sandy habitats. We demonstrated that coexistence among dolphins with overlapping distributional patterns can be driven by fine-scale spatial segregation in feeding activities. Spatial conservation management measures such as the protection of sandy and estuarine habitats are recommended.
Relative paleointensity stack during the last 500 ka in the western equatorial Indian Ocean
<p>Relative paleointensity (RPI) records can reflect the evolution of the Earth’s axial dipole field and provide a signal suitable for global stratigraphic correlation. Marine sediments have the potential to preserve continuous records of paleointensity, although with relative variations. Numerous RPI records have been obtained thus far, and global RPI stacks and the axial dipole field model PADM2M that integrate RPI records with absolute paleointensities from volcanic rocks have been proposed. However, current RPI records are mostly from the Atlantic and Pacific Ocean, especially in the mid-latitudes of the Northern Hemisphere, and less RPI records are from the Indian Ocean, in particular of those low latitude areas, which limits the sediment dating and the geomagnetic evolution studies in these regions. Therefore, it is required to make efforts for constructing new RPI records in such areas for global coverage of paleointensity data. We carried out systematic paleomagnetic studies on four sediment cores recovered from the Western Equatorial Indian Ocean (WEIO). Four RPI records were synthesized for the equatorial Indian ocean, which will provide a reference for the establishment of the chronological framework in these areas.</p>
A stacked record of relative paleointensity for the past 500 ka in the western equatorial Indian Ocean
<p>High-quality relative paleointensity (RPI) is important for the study of Earth Interior and sediments dating. Many existing high-resolution RPI curves have been obtained from the North Atlantic and Pacific Ocean. New high-quality relative paleointensity (RPI) stacks are required for other regions, e.g., Indian Ocean, because the geomagnetic field is a global phenomenon. There has been no such stack reported from this region, and it is required to make efforts for constructing a new stack in such areas for global coverage of paleointensity data. A new stack will be useful as a chronology tool because the water depths of some regions are below the calcium carbonate compensation depth and oxygen isotope stratigraphy is usually not applicable. Recent studies have revealed that high-quality RPI records have great potential for a global correlation of marine sediments in the late Pleistocene. In this context, we conducted a paleomagnetic study on 4 sediment cores recovered from the western equatorial Indian Ocean. The purpose is to establish a regional RPI stack during the last 500 ka (WEIO-500) for global coverage of paleointensity data as well as a regional reference for paleointensity-assisted stratigraphy.</p>
FIGURE 3 in A conspicuously coloured new species of the Alpheus macrocheles group from the central Indian Ocean (Decapoda: Alpheidae)
FIGURE 3. Alpheus dingabadi sp. nov.: holotype, male (cl 5.4 mm) from Faafu Atoll, Maldives (FLMNH UF 39660): shrimp in life, dorsolateral, fifth pereiopod missing on right side. Photograph by Jenna Moore.
FIGURE 2 in A conspicuously coloured new species of the Alpheus macrocheles group from the central Indian Ocean (Decapoda: Alpheidae)
FIGURE 2. Alpheus dingabadi sp. nov.: holotype, male (cl 5.4 mm) from Faafu Atoll, Maldives (FLMNH UF 39660): A— major (right) cheliped, lateral; B—same, distal portion of merus, carpus and chela, lateral; C—same, distal portion of merus, carpus and chela, mesial; D—same, distal portion of chela, fingers open (setae omitted); E—same, ischium, merus and carpus, mesial; F—same, detail of ventromesial margin of ischium and merus, mesial; G—minor (left) cheliped, mesial; H—same, lateral; I—same, detail of ventromesial margin of ischium and merus, mesial.
FIGURE 1 in A conspicuously coloured new species of the Alpheus macrocheles group from the central Indian Ocean (Decapoda: Alpheidae)
FIGURE 1. Alpheus dingabadi sp. nov.: holotype, male (cl 5.4 mm) from Faafu Atoll, Maldives (FLMNH UF 39660); A— frontal region, dorsal; B—same, lateral; C—telson, dorsal (plumose setae omitted); D—antennule and antenna, dorsal; E— antennular flagella, dorsal; F—tooth on ventromesial carina of first article of antennular peduncle, lateral (drawn without scale); G—third maxilliped, lateral; H—second pereiopod, lateral; I—third pereiopod, lateral; J—same, distal portion of propodus and dactylus, lateral; K—fourth pereiopod, lateral; L—fifth pereiopod, lateral; M—same, distal portion of propodus and dactylus, lateral; N—second pleopod, anterior (lateral); O—same, detail of appendices masculina and interna, anterior (lateral); P— uropod, dorsal (plumose setae omitted).
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.