Brazilian park reveals what happened when the rains finally came to Dune

After the rainy season , the switch dunes ofLençóis Maranhenses National Parkin northeastern Brazil become pockmarked by ephemeral lagoons that dry up as the year wend on . lensman George Steinmetz has captured the beauty of these momentaneous oases .

Even though the 600 - square - nautical mile park is covered with Amandine Aurore Lucie Dupin , its plentiful rain set aside the sphere to support freshwater fauna . SaysNational Geographic :

Actually , by the most proficient of standards , the Lençóis is n’t really a desert , says Antonio Cordeiro Feitosa , a geographer at the Federal University of Maranhão . Forty - seven inches or so of rain fall on the realm a yr . By definition , a desert average fewer than ten inches a year [ … ] Lagoons are expect afresh each year after the January - to - June rains fill the valleys between the dune . Some of these temporary bodies of water are more than 300 feet longsighted and up to ten foot deep . In early July , at their replete , the lagoons can become interconnected when river , such as the Rio Negro , rationalise through the dune . So fish have a path to migrate into the laguna , where they feed on other Pisces the Fishes or the larva of insects buried in the sand . A few Pisces species , such as the wolffish ( Hoplias malabaricus ) , even spend the dry season dormant in the mud , emerging when the rain shower deliver . Once the rainy time of year ends , the lagoon begin to evaporate in the equatorial heat ; their water level may omit by as much as three foot a month .

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