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Automatic fish counters are automatic devices for measuring the number of fish passing along a particular river in a particular period of time. Usually one particular species is of interest. One important species studied by fish counters are Atlantic salmon. This species is of interest owing to its ecologically vulnerable status and anadromous ...
The Three Mile Island accident was a partial nuclear meltdown of the Unit 2 reactor (TMI-2) of the Three Mile Island Nuclear Generating Station on the Susquehanna River in Londonderry Township, near Harrisburg, the capital city of Pennsylvania, United States. The reactor accident began at 4:00 a.m. on March 28, 1979, and released radioactive ...
Pool-and-weir fish ladder at Bonneville Dam on the Columbia River Drone video of a fish way in Estonia, on the river Jägala FERC Fish Ladder Safety Sign. A fish ladder, also known as a fishway, fish pass, fish steps, or fish cannon is a structure on or around artificial and natural barriers (such as dams, locks and waterfalls) to facilitate diadromous fishes' natural migration as well as ...
The Three Mile River or Threemile River is a river in Bristol County, Massachusetts. It is formed by the junction of the Rumford and Wading rivers in the town of Norton . [2] It flows in a southeasterly direction for 13.5 miles (21.7 km) [3] through the towns of Norton, Taunton and Dighton , where it joins the Taunton River .
8,900 sq mi (23,000 km 2) [5] Red Bluff Diversion Dam is a disused irrigation diversion dam on the Sacramento River in Tehama County, California, United States, southeast of the city of Red Bluff. Until 2013, the dam provided irrigation water for two canals that serve 150,000 acres (61,000 ha) of farmland on the west side of the Sacramento Valley.
April 13, 1977. Designated CP. November 13, 1984. The Great Stone Dam (also called the Lawrence Dam or Lawrence Great Dam) was built between 1845 and 1848 [2] on the site of Bodwell's Falls [3] on the Merrimack River in what became Lawrence, Massachusetts. The dam has a length of 900 feet (270 m) and a height of 35 feet (11 m).
The blue shiner is a temperate, freshwater fish that occupies benthopelagic zones in streams. [6] It occurs in second to fourth order streams with a moderate to low river currents, favoring sand and gravel substrates, and sometimes cobble. It generally remains at depths of 0.15 to 1 meter. It requires clear waters for feeding, because it is a ...
This category includes dams with various types of infrastructure to enable fish to bypass the dam, not all of which are strictly ladders. Pages in category "Dams with fish ladders" The following 30 pages are in this category, out of 30 total.