Removal of this dam allowed fish migration from the Allegheny River throughout the upper reaches of the Conewango Creek drainage basin.
32.
The Tye River is used by anadromous fish are found above Alpine Falls as it is a total barrier to fish migration.
33.
Notably, Dalhousie is the headquarters of the Ocean Tracking Network, a research effort using implanted acoustic transmitters to study fish migration patterns.
34.
El Nino started affecting Peru last year by upsetting fish migration patterns and making agricultural output less predictable because of unusual rainfall levels.
35.
The weir at this location is currently ( August 2010 ) undergoing modification, having been identified as a major barrier to fish migration.
36.
A major effort of the FOAL project has been to lower a weir that blocked upstream fish migration at Ty Nant Ddu, Pontypool.
37.
Outlet Creek provides groundwater recharge, recreation, and agricultural and industrial water supply plus wildlife habitat including cold freshwater habitat for fish migration and spawning.
38.
Around the world, coordination and promotion is done through local activities supported and coordinated by a central office of the World Fish Migration Platform.
39.
The technology is so new that the impact on matters like fish migration and water circulation patterns are not well understood, according to Charters.
40.
It is expected that fish migration routes ( which support the world's largest inland fishery on the Tonl?Sap ) will be essentially wholly impeded.
