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Shorts Lumikha
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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A close, really close, more than close encounter with a beautiful Manta Ray on Karang Makassar... Never get tired of that kind of diving ! Is it close enough for you ?? ;-)
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douche de pont et coquepit !!!
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Il Corso Skipper 1°Comando è rivolto a tutti coloro che, con una buona conoscenza delle manovre fondamentali della barca e della navigazione, desiderano partecipare ad una full-immersion di una settimana di navigazione nel bacino di mare compreso tra Italia, Slovenia e Croazia. Il Corso viene organizzato per consentire all’allievo comandante di acquisire l’esperienza nella preparazione di crociere costiere in condizioni di sicurezza anche con cattivo tempo e in navigazione notturna. Il corso è particolarmente adatto per coloro che sono in procinto di iniziare il corso di patente nautica e per coloro che pur avendo superato l’esame di patente, non hanno ancora acquisito l’esperienza sufficiente per condurre in autonomia un’imbarcazione da crociera. Il programma comprende 6 giorni di navigazione durante i quali gli allievi si alterneranno al comando effettivo della barca sotto la guida dei nostri istruttori per acquisire la competenza idonea al comando.
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