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464 results for “Swimming”
Linked collectors and determiners for: Further studies on south eastern Asian Luciolinae: 1. Sclerotia Ballantyne, a new genus of fireflies with back swimming larvae 2. Triangulara Pimpasalee, a new genus from Thailand (Coleoptera: Lampyridae).
Natural history specimen data linked to collectors and determiners held within, "Further studies on south eastern Asian Luciolinae: 1. Sclerotia Ballantyne, a new genus of fireflies with back swimming larvae 2. Triangulara Pimpasalee, a new genus from Thailand (Coleoptera: Lampyridae)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/31934b20-b4b6-4246-ac24-98843a1c0c1a">https://bionomia.net/dataset/31934b20-b4b6-4246-ac24-98843a1c0c1a</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/31934b20-b4b6-4246-ac24-98843a1c0c1a">https://gbif.org/dataset/31934b20-b4b6-4246-ac24-98843a1c0c1a</a>. Formatted as a Frictionless Data package.
Data from: Sperm head morphology is associated with sperm swimming speed: a comparative study of songbirds using electron microscopy
Sperm exhibit extraordinary levels of morphological diversification across the animal kingdom. In songbirds, sperm have a helically shaped head incorporating a distinct acrosomal membrane or 'helical keel', the form and extent of which varies across species. The functional significance of this helical shape, however, remains unknown. Using scanning electron microscopy, we quantified inter- and intra-specific variation in sperm head morphology across 36 songbird species (Passeriformes: Passerida). Using phylogenetic comparative methods, we investigated the relationship between sperm head morphology and both sperm swimming speed and the frequency of extra-pair young (EPY). We found that species whose sperm had a relatively more pronounced helical form (i.e. long acrosome, short nucleus, wide helical membrane, and a more pronounced waveform along the sperm head 'core') had faster-swimming sperm. We found no evidence of a relationship between inter-specific variation in sperm head morphology and EPY, although we did find that among- and within-male variation in sperm head traits were negatively correlated with EPY. Applying principles of fluid mechanics, we discuss how the helical form of the sperm head may influence swimming speed, and suggest that further studies considering aspects of sperm morphology beyond sperm length are needed to improve our understanding of sperm structure-function relationships.
FIGURE 3. Kume tigra n in Kume tigra, a new genus and new species of carupine swimming crab (Crustacea: Brachyura: Portunidae) from Kume Island, Ryukyu Islands, Japan*
FIGURE 3. Kume tigra n. gen. et sp. Holotype male (2.4 × 4.7 mm), RUMF-ZC-1400.
FIGURE 2. Kume tigra n in Kume tigra, a new genus and new species of carupine swimming crab (Crustacea: Brachyura: Portunidae) from Kume Island, Ryukyu Islands, Japan*
FIGURE 2. Kume tigra n. gen. et sp. Paratype female (2.9 × 6.1 mm), ZRC 2010.0182.
Figure 5 in Variation in elasmoid fish scale patterns is informative with regard to taxon and swimming mode
Figure 5. Principal components analysis (PC1 and PC2) of mean scale shapes in each area: A1, A2, A3, C1, C2, C3, P1, P2, P3 as defined in Fig. 1. A, Mugil cephalus; B, Mugil curema; C, Dicentrarchus labrax.
Figure 7 in Variation in elasmoid fish scale patterns is informative with regard to taxon and swimming mode
Figure 7. Specific swimming modes identified within body/caudal fin propulsion, based on the extended classification scheme (Lindsey, 1978) proposed by Breder (1926). Reprinted from Lindsey CC. Form, function and locomotory habits in Fish. Pages. 9 & 10, Figs 1 and 2. In: Hoar D, Randall DJ, eds. Fish Physiology. Vol. VII New York: Academic Press, Copyright (1978), with permission from Elsevier.
Fig. 2 in A swimming medusoid gonophore in the life cycle of Ventromma halecioides (Alder, 1859) (Hydrozoa: Leptothecata: Kirchenpaueriidae)
Fig. 2. (A-B) Male medusoid either showing colors in life (A), or stained (B) and displaying an Y-shaped spadix. (C) Partially spawned female medusoid with aggregate of oocytes. (D-F) Three steps of spawning (note presence of velum). (G) Emptied female medusoid. (H) Stained male medusoid partly liberating its gametes, showing directional arrangement of sperm cells. (I) Spawned male medusoid partly liberated from its membrane. (J, K) Spawned medusoids of unknown sex(es), the latter with the bell inside-out. (L-M) Belt of refringent corpuscles seen apically in a male medusoid (L) and laterally in a female (M). (N) Close-up of the refringent corpuscles. (O) Bell margin of a female medusoid showing large, vacuolated cells after the dissolution of the concretions (blue arrowheads). (P-Q) Pseudostenoteles from exumbrella either undischarged (P) or discharged (Q). Scale bars: 10 μm (P, Q), 20 μm (N), 100 μm (L, M, O), 200 μm (B, D-F, H), 400 μm (A, C, G, I-K).
Fig. 1 in A non-avian dinosaur with a streamlined body exhibits potential adaptations for swimming
Fig. 1 Natovenator polydontus (MPC-D 102/114, holotype). Photographs (a, c) and line drawings (b, d) of the main block containing most of the specimen in opposite views. cav caudal vertebra, co coracoid, cv cervical vertebra, d dentary, dc distal carpal, dv dorsal vertebra, fem femur, fu furcula, h humerus, mx maxilla, ph phalanx, pm premaxilla, r radius, ul ulna.
Fig. 2 in Genotype diversity, phylogenetic analysis and seasonality of isolates of Acanthamoeba spp. in swimming pools in Kafrelsheikh, Egypt
Fig. 2. The maximum-likelihood constructed phylogenetic tree of Acanthamoeba isolates inferred from the small subunit ribosomal RNA gene sequences from GenBank showing the phylogenetic position of three strains detected in the present study; T4 (blue), T9 (green) and T11 (red). The tree with the highest log likelihood (-1201.92) is shown.
Figure 3. – A in Swimming depth and behaviour of newly recruiting post-larvae of Sicyopterus japonicus (Gobioidei: Sicydiinae) in the estuary of the Ota River, Wakayama, Japan
Figure 3. – A: Relationships between water depth and depth of swimming of newly recruited Sicyopterus japonicus post-larvae observed in the estuary of the Ota River from April to July 2008. Dashed and thin lines indicate bottom depth and swimming depth at 0, and open circles and closed triangles indicate observations near the river mouth and other areas, respectively. B: Percentage of bottom depth with the surface as 0 where post-larvae were swimming.
Figure 1. – A in Swimming depth and behaviour of newly recruiting post-larvae of Sicyopterus japonicus (Gobioidei: Sicydiinae) in the estuary of the Ota River, Wakayama, Japan
Figure 1. – A: A shoal of newly recruiting post-larvae of Sicyopterus japonicus swimming near rocks along the river bank; B: Head-down stationary holding (hovering) behaviour in the estuary of the Ota River.
Effects of Calisthenics and Life Kinetics on Reaction Time, Balance, and Swimming in Male Swimmers
ClinicalTrials.gov study NCT07089563. IPD Sharing: NO. Countries: 1. Publications: 0.
Sildenafil for Swimming-Induced Pulmonary Edema (SIPE) Prevention
ClinicalTrials.gov study NCT03686813. IPD Sharing: UNDECIDED. Countries: 1. Publications: 0.
Effects of Inspiratory Muscle Training Added to a Swimming Program in Children With Asthma
ClinicalTrials.gov study NCT07394127. IPD Sharing: NO. Countries: 1. Publications: 0.
Data from: Selection experiments reveal trade-offs between swimming and twitching motilities in Pseudomonas aeruginosa
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Data from: Unravelling anisogamy: egg size and ejaculate size mediate selection on morphology in free-swimming sperm
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Data from: Sperm head morphology is associated with sperm swimming speed: a comparative study of songbirds using electron microscopy
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Data from: Measuring sperm swimming performance in birds: effects of dilution, suspension medium, mechanical agitation, and sperm number
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Data from: Sperm morphology, adenosine triphosphate (ATP) concentration and swimming velocity: unexpected relationships in a passerine bird
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Data from: Combined effects of ocean acidification and temperature on larval and juvenile growth, development and swimming performance of European sea bass (Dicentrarchus labrax)
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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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.