The nutrients in the fresh water plume often feed large plankton blooms offshore. The International Space Station Program supports the laboratory to help astronauts take pictures of Earth that will be of the greatest value to scientists and the public, and to make those images freely available on the Internet. Image of the Day Land Water. The South Atlantic Ocean off the coast of Argentina and Uruguay is a rich mixing bowl of different water masses.
Under the right conditions, especially in spring and early summer, the nutrients fertilize the offshore surface waters allowing for large plankton blooms. This unique image captures traces of several different water masses just southeast of Montevideo, Uruguay, and the Rio de la Plata. Close to the coast of Uruguay, the muddy fresh water plume snakes along the coast. Montevideo was only established in by Spaniards from Buenos Aires and then only as a garrison designed as part of the effort to repel the Portuguese.
About 70 per cent of the Uruguayan population lives in Montevideo, and much of the Spanish spoken in Uruguay can be regarded as an extension of the Buenos Aires dialect. The Italo-Spanish interlanguage that flourished among Italian immigrants was known as cocoliche. Much caricatured in literature and on the stage, it came to occupy a prominent position in popular culture but has now more or less died out. Canary Island immigration to the region in the 19th and 20th centuries was significant also although the figures were never as high as in the Caribbean.
This palato-alveolar fricative was traditionally voiced, i. One of the most emblematic features of Argentine Spanish is voseo , which is the norm throughout the social spectrum.
In the Cuyo region and in the far north-west, the relevant verbal morphology approximates to the Chilean pattern , which also includes dissimilated endings. The standard Argentinian pattern, with less acceptable variants shown in parentheses, is summarized in Table 1 below :. The use of vos in Uruguay is not quite as entrenched as in Argentina. The imperative endings that go with vos in Uruguay are the same as in Argentina. The present subjunctive may be used in an embedded clause governed by a verb that is inflected for the preterite or the imperfect, as in 1 below.
This is a context in which standard Spanish usually requires the past subjunctive:. Vernacular speech in many parts of the region exhibits a range of what might be called non-technically vulgarismos , some of which have been immortalized in the once flourishing Gaucho literary genre.
For instance, a resumptive indirect object clitic may have a subject pronoun such as yo as its clitic left dislocated antecedent, as in example 2 below :. Besides turtles, other reptiles such as the caiman, rattlesnakes, iguanas, and Cross vipers, as well as a number of amphibian species, also thrive in the Rio de la Plata region.
These include such fish as the carnivorous piranha, the pacu, the Dorado, catfishes, and the manduva, all of which are abundant in the waters of the estuary. Nearly species of birds nest in this region as well, including a variety of parrots, eagles, and kites.
Even though a large number of people are dependent on the waters of the Rio de la Plata and its rivers for their domestic water consumption, the pollution of these same waters from industrial wastes and sewage, as well as pesticide and fertilizer run-offs from agricultural lands, has led to a sharp decline in the water quality here. Introduction of non-native species from Asia and Africa, like golden mussels, into the waters of the Rio de la Plata by ships harboring these species in their hulls, chains, and keel further threatens to replace the native aquatic flora of the wetland ecosystem.
Such invasive secies are disturbing the food chain, and thus displacing the native species of the region and their ecological roles. Oishimaya Sen Nag April 25 in Environment. Puma, Cougar, Or Mountain Lion? Bhopal Gas Tragedy.
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