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The yellow stingray (Urobatis jamaicensis) is a species of stingray in the family Urotrygonidae, found in the tropical western Atlantic Ocean from North Carolina to Trinidad. This bottom-dwelling species inhabits sandy, muddy, or seagrass bottoms in shallow inshore waters, commonly near coral reefs. Reaching no more than 36 cm (14 in) across, the yellow stingray has a round pectoral fin disc and a short tail with a well-developed caudal fin. It has a highly variable but distinctive dorsal color pattern consisting of either light-on-dark or dark-on-light reticulations forming spots and blotches, and can rapidly change the tonality of this coloration to improve its camouflage. Relatively sedentary during the day, the yellow stingray feeds on small invertebrates and bony fishes. When hunting it may undulate its disc to uncover buried prey, or lift the front of its disc to form a "cave" attractive to shelter-seeking organisms. This species is aplacental viviparous, meaning that the developing embryos are sustained initially by yolk and later by histotroph ("uterine milk"). Females bear two litters of up to seven young per year in seagrass, following a gestation period of 5–6 months. Though innocuous towards humans, the yellow stingray can inflict a painful injury with its venomous tail spine. This species is taken as bycatch by commercial fisheries and collected for the aquarium trade; it may also be negatively affected by habitat degradation. Nevertheless, it remains common and widespread, which has led the International Union for Conservation of Nature (IUCN) to list it under Least Concern.
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Octopus Dykcenter i Kalmar genomförde ett prova på dyk utomhus under en svensexa. Dykarna fick se många fina maneter och uppleva tyngdlösenheten i vattnet. Häng med oss under ytan i denna undervattensfilm!
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Developed by an indie team in Australia with the mission to inspire, train and connect sailors:
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C'est BON de partager ! C'est BON pour moi, c'est BON pour les autres et c'est BON pour la planète ! Bienvenue au cœur du partage avec https://www.PLACEdelaLOC.com ! #engagement #placedelaloc #cbondepartager
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For hardcore sailing fans, join us for a deep dive into the role of Headsail Trimmer on Team Nika with Pierluigi De Felice.
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