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The reference water level of the lake is set at 257.33 AMSL. This level corresponds to a maximum depth of around 6m. Actions are planned to reduce the water level when it climbs above 257.60 AMSL, but since the maximum level was set the lake has reached that height only occasionally. July 2007, a fishing boat on Lake Trasimeno July 2008. The ...
Optima Lake was built to be a reservoir in Texas County, Oklahoma.The site is just north of Hardesty and east of Guymon in the Oklahoma Panhandle. [2]The earthen Optima Lake Dam (National ID # OK20510) was completed in 1978 (46 years ago) () by the United States Army Corps of Engineers, with a height of 120 feet (37 m), and a length at its crest of 16,875 feet (5,144 m). [3]
Casting the Net, by pioneering Iraqi photographer Murad al-Daghistani, 1930s. A casting net, also called a throw net, is a net used for fishing. It is a circular net with small weights distributed around its edge. The net is cast or thrown by hand in such a manner that it spreads out while it's in the air before it sinks into the water.
In 1927-1928 Michael Graham conducted the first ever systematic Fisheries Survey of Lake Victoria. The dominant species in the 1927–8 survey catches were two, now critically endangered tilapia species, the 'Ngege' or Singida tilapia (Oreochromis esculentus) and Victoria tilapia (O. variabilis). [2][3] Other commonly observed species included ...
Lake Nacimiento. Lake Nacimiento is an 18-mile (29 km) long lake on the Nacimiento River in northern San Luis Obispo County, California. The lake contains many arms including Snake Creek and Dip Creek, nearer the dam, and the central Las Tablas and Franklin Creeks. Due to the dragon-like shape created by the positions of these arms, it is ...
At high tide, sea level rises above lake level and fresh seawater is fed into the lake through the underground pipe, where an automatic hydraulic gate opens. At low tide, that same gate shuts as the lake reaches its highest level, and at the northern end of the lake, an automatic outlet gate opens allowing water to flow through to the Port River .
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Lake George, New York, an oligotrophic lake. The Trophic State Index (TSI) is a classification system designed to rate water bodies based on the amount of biological productivity they sustain. [1] Although the term "trophic index" is commonly applied to lakes, any surface water body may be indexed. The TSI of a water body is rated on a scale ...