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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.

joanwicktanner2999

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Dans les #TutosGazelle, toutes les réponses pour apprendre comment faire du voilier, notamment les tuto sur les noeuds marins. Avec nos video, vous deviendrez rapidement autonome pour manoeuvrer un petit voilier comme La Gazelle des Iles, le canot breton Morgat 320 ou le mini voilier La Gazelle Des Sables. Parmi les classiques : quel noeud marin ? comment faire un noeud marin ? Apprendre à faire des noeuds marins est simple, en image, avec les tuto des Ateliers de La Gazelle des Sables Chez nous, avec nos petits voiliers, il suffit d'en maitriser 3. Aujourd'hui : le noeud de taquet. Il sert à maintenir en place un cordage sur un taquet sans le surcharger. + de Video + de Tutos : https://www.lagazelledessables.fr

atelierdesgazelles

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For the last 20 years we have prepared for this moment…

sailingbananapancakes

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Here's what the Finn fleet looks like going into the Medal Race at the Rio 2016 Olympic Games. Follow World Sailing on: Facebook - http://www.facebook.com/ISAFWorldSailing Twitter - http://www.twitter.com/worldsailing Website - http://www.sailing.org

worldsailingtv

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We are one step closer to putting Sabado back together— even if it doesn’t look like it yet! 🛠️ Today, we pulled the mast as part of our big refit. #boatlife #boatrefit 👉 Subscribe for real-time updates and behind-the-scenes boat work!

Hollyandray

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The New Bali 7.0 blurs the line between a luxury villa and a sailing yacht: a loft on the sea. The Catana Group have built longer yachts (the Catana 90), but none of them have looked like this. ▫️ The saloon opens fully from the stern, via the famous Bali door, to the bow. ▫️ Impressive volumes flooded with natural light and high-end materials create a unique yacht: the new Bali flagship. What do you think? ▫️ Can you see yourself on a 2 week vacation on the 7.0? ▫️ #multihulls #ocean #penthouse @BaliCatamarans

Katamaranscom

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