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40 results for “Manta”
FIGURE 3 in Redescription of the genus Manta with resurrection of Manta alfredi (Krefft, 1868) (Chondrichthyes; Myliobatoidei; Mobulidae)
FIGURE 3. Variation in ventral markings on Manta birostris from: (a) Inhambane, Mozambique; (b) Inhambane, Mozambique; (c) Revillagigedo Archipelago, Mexico; (d) Revillagigedo Archipelago, Mexico; (e) Inhambane, Mozambique; (f) Inhambane, Mozambique; (g) Ogasawara Islands, Japan; (h) Inhambane, Mozambique.
FIGURE 6 in Redescription of the genus Manta with resurrection of Manta alfredi (Krefft, 1868) (Chondrichthyes; Myliobatoidei; Mobulidae)
FIGURE 6. Skin and denticle morphology in Manta birostris: (a) superior view of dorsal skin in male ray; (b) superior view of ventral skin in female ray; (c) lateral view of single denticle; (d) superior view of single denticle.
FIGURE 1 in Redescription of the genus Manta with resurrection of Manta alfredi (Krefft, 1868) (Chondrichthyes; Myliobatoidei; Mobulidae)
FIGURE 1. Natural colouration patterns in Manta birostris: (a) dorsal surface, arrows pointing to the shape and colouration of the shoulder patches and the colouration on the pectoral fins, box showing chevron shaped marking anterior to dorsal fin; (b) ventral surface, box showing region of highest spot density and distribution, arrows showing size of spot anterior to the 5th gill slit, colouration of mouth region, and colouration of the pectoral fin margin.
FIGURE 9 in Redescription of the genus Manta with resurrection of Manta alfredi (Krefft, 1868) (Chondrichthyes; Myliobatoidei; Mobulidae)
FIGURE 9. General characteristics and natural colouration patterns in Manta alfredi: (a) dorsal surface, arrows pointing to the shape and colouration of the shoulder patches and the colouration on the pectoral fins, box showing chevron shaped marking anterior to dorsal fin; (b) ventral surface, box showing region of highest spot density and distribution, arrows showing size of spot anterior to the 5th gill slit, colouration of mouth region, and colouration of the pectoral fin margin.
FIGURE 2 in Morphological measurements of manta rays (Manta birostris) with a description of a foetus from the east coast of Southern Africa
FIGURE 2. Juvenile female manta ray (Manta birostris) from Durban, South Africa: (a) anterior dorsal coloration; (b) ventral view showing natural markings; (c) lateral view of dorsal fin and base of tail.
FIGURE 1 in Morphological measurements of manta rays (Manta birostris) with a description of a foetus from the east coast of Southern Africa
FIGURE 1. Male manta ray (Manta birostris) foetus collected from Paindane Beach, Mozambique: (a) anterior view showing dorsally folded pectoral fins; (b) dorsal view showing pectoral fin measurements P1, P2 and P3; (c) ventral view showing natural markings; (d) open umbilical scar; (e) detail of teeth on lower jaw; (f) clasper.
Manta Spondylus
Source: Objaverse 1.0 / Sketchfab
Manta
Source: Objaverse 1.0 / Sketchfab
Manta Study: Avastin Versus Lucentis in Age Related Macular Degeneration
ClinicalTrials.gov study NCT00710229. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Data from: It’s not all black and white: investigating colour polymorphism in manta rays across Indo-Pacific populations
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Phylogenomics and species delimitation for effective conservation of manta and devil rays
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Numerical and mass concentrations of microplastic debris collected by manta net; Numerical concentrations of Halobates sericeus adults/juveniles and eggs; zooplankton biomass concentration. Various cruises from 1972 - 2010 (completed).
Microplastic, Halobates, and zooplankton were collected using a standard manta net tow. Each sample was sorted at 6-12x magnification under a Wild M-5 dissecting microscope, and plastic particles and H. sericeus removed for further analysis. Plastic particles were soaked in deionized water to remove salts, dried at 60°C, and stored in a desiccator. Dry mass was measured on an analytical balance. Particles were then digitally imaged with a Zooscan digital scanner (Gorsky et al. 2010). The total number of particles was measured using NIH ImageJ-based tools in the Zooprocess software, calibrated against manual measurements (Gilfillan et al. 2009, Gorsky et al. 2010). H. sericeus samples were enumerated and classified into 5 categories: juvenile, adult male, adult female, newly molted, and molted exoskeletons. H. sericeus eggs, both those attached to plastic and those that had become detached during the collection process, were also enumerated. Dry mass of zooplankton was obtained from preserved manta tow samples. After fixation in 1.8% formaldehyde for 24 months, samples were split in a Folsom splitter, filtered onto 202 µm Nitex mesh disks and rinsed with isotonic ammonium formate. Filters were dried for 24 hours at 60°C and placed in a vacuum dessicator until weighing. Filters were weighed to the nearest 0.0001 gram on the same analytical balance as the plastic samples. A 20% correction factor was applied in order to compensate for the biomass lost by preservation.
Feret diameter (mm), area (mm2), and circularity of microplastic debris collected by manta net aboard the Scripps Environmental Accumulation of Plastic Expedition (SEAPLEX) cruise, August 2009, and NOAA Okeanos Explorer expedition, 2010.
Microplastic was collected using a standard manta net tow. Each sample was sorted at 6-12x magnification under a Wild M-5 dissecting microscope, and plastic particles and H. sericeus removed for further analysis. Plastic particles were soaked in deionized water to remove salts, dried at 60°C, and stored in a desiccator. Particles were then digitally imaged with a Zooscan digital scanner (Gilfillan et al. 2009, Gorsky et al. 2010)
Genome-wide SNPs detect no evidence of genetic population structure for reef manta rays (Mobula alfredi) in southern Mozambique
Little is known about the extent of genetic connectivity along continuous coastlines in manta rays or whether site visitation is influenced by relatedness. Such information is pertinent to defining population boundaries and understanding localised dispersal patterns and behaviour. Here, we use 3057 genome-wide single nucleotide polymorphisms (SNPs) to evaluate population genetic structure and assess levels of relatedness at aggregation sites of reef manta rays (Mobula alfredi) in southern Mozambique (n = 114). Contrary to indications of limited dispersal along the southern Mozambican coastline inferred from photo identification and telemetry studies, our results show no evidence of population structure (non-significant FST <0.001) for M. alfredi along this coast. We also found no evidence that individuals sampled at the same site were more related than expected by chance for males, females or across both sexes, suggesting kinship may not influence visitation pattern s at these sites. We estimated the effective population size (Ne) of this population to be 375 (95% CI = 369-380). Comparison to a distant eastern Indian Ocean site (Western Australia; n = 15) revealed strong genetic differentiation between Mozambique and Western Australia (FST = 0.377), identifying the Indian Ocean basin as a barrier to dispersal. Our findings show that genetic connectivity in M. alfredi extends for several hundred kilometres along continuous coastlines. We therefore recommend the population in Mozambique be considered a discrete management unit and future conservation plans should prioritize integrated strategies along the entire southern coastline.
MANTA Ultrasound Closure Study
ClinicalTrials.gov study NCT05142566. IPD Sharing: YES. Countries: 2. Publications: 0.
Comparison Between Manta and Prostar Closure Devices
ClinicalTrials.gov study NCT05662748. IPD Sharing: NO. Countries: 1. Publications: 0.
Data from: Reverse diel vertical movements of oceanic manta rays off the northern coast of Peru and implications for conservation
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Genome-wide SNPs detect no evidence of genetic population structure for reef manta rays (Mobula alfredi) in southern Mozambique
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Prospective Clinical Registry Evaluating Contemporary MANTA Outcomes
ClinicalTrials.gov study NCT05936996. IPD Sharing: YES. Countries: 2. Publications: 0.
Manta™ Versus Suture-based Closure After Transcatheter Aortic Valve Implantation Trial
ClinicalTrials.gov study NCT03811119. IPD Sharing: NO. Countries: 1. Publications: 0.
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International Brain Laboratory public data
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OpenNeuro
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