malodino

Bueno para contestar la pregunta de lo que es un fiordo tropical voy a postear la informaciòn que encontrè en este link que està en inglès y otras en español.

El Golfo Dulce, en el Pacífico de Costa Rica, presenta características morfológicas que tienden a restringir la circulación del agua en su cuenca interna y a favorecer la formación de aguas profundas anóxicas. Por esta razón, su circulación se asemeja la de fiordos de latitudes altas (Richards et al. 1971). El término fiordo es aplicado a un estuario o a una cuenca profunda rodeada por terrenos de pendiente fuerte y en muchos casos, un umbral en su desembocadura (Rattray 1967). Lo anterior es de gran relevancia debido a que solamente existen cuatro cuencas tropicales con tales características: el Golfo Dulce, el Golfo de Cariaco (Venezuela), la bahía Darwin (Ecuador) y la bahía Kaoe (Indonesia) (Richards 1965).
Fuente: http://www.scielo.sa.cr/scielo.php?p...pt=sci_arttext




The Osa Peninsula, located in Southwestern Costa Rica, contains extremely high species diversity, including more than 10,000 species of insects, 2,418 species of plants, 700 species of trees, 140 species of mammals, 367 species of birds, 117 species of amphibians and reptiles, and 40 species of freshwater fish. The Osa also contains the most significant populations of large endangered mammals such as jaguars, ocelots, white-lipped peccaries, and tapirs on the Pacific coast of Central America. This diversity is due to an exceptional variety of habitats, including lowland rainforest, transitional forest, cloud forest, mangrove forest, Yollillo palm swamps, lakes, rivers and streams, and marine ecosystems such as coral reefs, sea grass beds, and the Golfo Dulce, a unique tropical fjord.



Currently, there are significant protected areas on the Osa Peninsula, including Corcovado (47,000 hectares) and Piedras Blancas (14,025 hectares) National Parks. However, these protected areas are too small to maintain the biological process necessary to maintain present levels of diversity. Unless the Corridor is consolidated, endangered species such as the jaguar and peccary will become locally extinct.



CEDARENA Land Trust and the other members of the Osa Biological Corridor Coalition have identified key properties necessary to consolidate the Osa Biological Corridor. Conservation strategies include conservation easements, purchase of development rights and land purchase.

PROJECT SNAPSHOT
Location: Osa Peninsula, Southwestern Costa Rica.

Habitat: Lowland humid forest, transitional forest, cloud forest, wetlands and marine habitats.

Biological Importance: High species diversity, including many endangered and endemic species.

Area: Area of influence = approximately 100,000 hectares. Core area of biological corridor = 17,672 hectares.

Conservation Action: Donation of conservation easements, purchase of development rights and land purchase on key properties in the core of Osa biological corridor.

Local Partners: CEDARENA and associated groups in the OSA Biological Corridor Coalition.

Financial needs: $ 4.9 million: $3.3 million for acquisition through land purchase and purchase of development rights and $1.6 million for stewardship.


Fundaciòn Neotròpica:

La Península de Osa es una de las zonas del mundo con mayor diversidad biológica. En esta zona y los sectores adyacentes se localiza el último bosque tropical lluvioso de la vertiente del Pacífico de América Central. El Golfo Dulce, calificado como un fiordo tropical y rodeado de manglares, constituye un recurso de extraordinaria belleza escénica.

Bordering Panama and Nicaragua, with coasts on the Pacific Ocean and the Caribbean Sea, Costa Rica hosts an amazing wealth of biodiversity. An estimated four percent of the world’s species can be found within its borders, though Costa Rica’s 19,652 square miles represent just a tiny fraction of the planet’s land mass. With more than 200 mammal species, 214 reptiles, 130 fish, 168 amphibians, 600 birds and over 12,000 different plant species, Costa Rica is a biodiversity mecca. As variable in terrain as it is in natural beauty, the country contains both tropical and subtropical climates with landscapes ranging from coastal plains to rugged mountains. Costa Rica is also a hotbed of volcanic activity with100 volcanic cones and several active volcanoes.

As with any area that contains wealth of natural resources, balancing peoples’ need to make a living with their desire to preserve biodiversity is a complex issue. Air and coastal pollution, agriculture, -- which occupies about 45% of the land in Latin America -- and solid waste management are but some of the threats to the Earth’s equilibrium in this part of the world.

Costa Rica is exemplary in its measures to combat one of Latin America's highest deforestation rates. A quarter of the country is protected park land, and the beauty found in these preserves draw millions of visitors each year.

To ensure sustainable use within areas of critical natural importance, the government’s Ministry of the Environment and Energy (MINAE) has created the National System of Conservation Areas (SINAC), a network consisting of eleven areas with sustainability-oriented management plans.


One example is the Osa Conservation Area, which includes a remarkable variety of ecosystems including cloud forests, mangroves, marine ecosystems, and even a tropical fjord. An estimated half of the country’s biodiversity -- including the endangered jaguar, ocelot, scarlet macaw, and the Pacific green sea turtle -- is found in this region.

Another area central to national conservation efforts is La Amistad/ Talamanca within the Talamanca mountain range in south-central Costa Rica. Designated a UNESCO Biosphere Reserve in 1982, this area contains one of the largest tracts of virgin rainforest in all of Central America. As a result, it is also home to several endangered species including the giant anteater, as well as several notable birds such as the harpy eagle and the resplendent quetzal. Roughly 25,000 people reside in the area, relying on traditional subsistence methods to earn their livelihoods.

A third area of great importance is the Guanacaste Conservation Area. Located in the northwest and covering over 400 square miles, its designation as a conservation area serves to protect varying ecosystems including evergreen and cloud forests. Protected status provides a safe haven for migratory animals native to the region, which is home to several species of monkeys, over 300 bird species and over 10,000 insect species.

The Tortuguero Conservation Area, along the Caribbean shore is also critical to conservation efforts. Tortuguero, or “turtle catcher” is one of the largest nesting areas on the planet for the green sea turtle as well as several other turtle species and crocodiles, bull sharks and manatees. The area includes Tortuguero National Park, Barra del Colorado Wildlife Reserve and Tortuguero Protected Area.

Fuente:http://www.rainforest-alliance.org/l...ica/index.html

Protecting the Tropical Fjords of Costa Rica
By Costa Rica Surf

The Golfo Dulce in Costa Rica is one of three tropical fjords in the Pacific Ocean . This unique aquatic habitat is home to a great diversity of marine life including dolphins, sea turtles, tropical fish including marlin, parrotfish, dorado, red snapper, over 87 species of stomatopods and decapods, and is an important place for humpback whales and whale sharks to both breed and give birth.


The beaches surrounding the Golfo Dulce also serve as a nesting ground for hawksbill, Olive Ridley and leatherback ocean turtles. The topography of the Golfo Dulce is such that the mouth of the gulf has a depth of 50 m, while the interior region of the gulf reaches depth of over 200 m. These inner regions of great depth are highly saline and anoxic. Anaerobic sulfur-reducing bacteria, whose metabolism produces highly toxic by-products, thrive in these regions, while nitrates also become concentrated at these depths. It is therefore crucial that currents from the open ocean dilute these toxic compounds such that the gulf does not become uninhabitable.


The abundance of wildlife in the Golfo Dulce is thought to be attributed to its unique topography, which makes it a sanctuary for marine life. The shallow mouth of the gulf is subject to open ocean currents and circulate more rapidly than the inner regions of greater depth, the latter having an estuary-like pattern of water circulation. This inner region of estuary-like water circulation and great depth provides an ideal breeding ground for both mollusks and large animals such as the humpback whale as they are protected from the dangers of the open ocean.

The mouth of the Golfo Dulce is therefore crucial both for the circulation of the purifying currents entering the gulf and for the passage of marine life that uses the gulf at various times throughout the year.

malodino

¿ A nadie le interesa?

kuquito

Si me interesa, lo que pasa es que no se porque es un fiordo?

Hasta donde se los fiordos se producen por hundimiento de valles provocados por glaciares y como producto terminado tienen como caracteristicas acantilados. Estaba esperando que alguien me lo aclarara. Tambien lei que son levantamientos del suelo del mar o algo asi.

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UN SIGLO AMANDOTE

Gabo

Eso mismo se pero como son los tropicales???
me interesa mucho esto!

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El Tico

Yo soy bastante ignorante con este tema, gracias por enseñarme algo Malodino.