Stn.9 Head of Montevideo Submarine Canyon | SOI Divestream 835

Описание: Dive Description (Spanish follows):

Located in the southwestern sector of the study area, the landing point is 351 km (190 nautical miles) southeast of Berrondo (Florida). It is 484 km (261 nautical miles) from Cenutrion (Cerro Largo) and 490 km (264 nautical miles) from Los Feos (Tacuarembo).
At the head of the Montevideo Canyon, on its upper slope and immersed in Antarctic Intermediate Waters, the station is located, with depths ranging from 561 to 301 m (0°-10°). The area features sandy bottoms and possibly a "pockmark"-shaped depression, where chemosymbiotic fauna could coexist due to the high concentration of organic matter or low oxygen levels. There may be some light, but not enough for observation or photosynthesis. A heterogeneous habitat gradient with different associations of organisms is expected to be encountered as the slope of the proposed route is ascended.

Ubicado en el sector suroeste del área de estudio, el punto de descenso se encuentra a 351 km (190 mn) de la Localidad Berrondo (Florida) en dirección sureste. A 484 km (261 mn) de Cenutrion (Cerro Largo) y a 490 km (264 millas náuticas) de Los Feos (Tacuarembó).
Sobre la cabecera del cañón Montevideo, en su ladera superior e inmersa en Aguas Intermedias Antárticas se ubica la estación con profundidades que oscilan entre 561 y 301 m (0°-10°). El área presenta fondos arenosos y varios escapes de fluidos y depresiones con forma de Pockmark, donde podría coexistir fauna quimiosimbiótica debido a la alta concentración de materia orgánica o los bajos niveles de oxígeno y presencia de gases. Podría haber algo de luz, pero no la suficiente para observarla ni para realizar la fotosíntesis. Se espera encontrar un gradiente de hábitat heterogéneo con diferentes asociaciones de organismos a medida que se asciende la pendiente de la ruta propuesta.

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