Exclusion of salmonid fish from water intakes

SIGLEAvailable from British Library Document Supply Centre- DSC:7761.0388(RD/L--3371/R88) / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Field evaluation of a sound system to reduce estuarine fish intake rates at a power plant cooling water inlet

An acoustic deterrent system producing 20-600 Hz sound was used to repel estuarine fishes away from a power station cooling water inlet. During sound emission, total fish impingement decreased by 60%. The avoidance response varied among species from no effect to highly efficient deflection. Lampetra fluviatilis and Pleuronectiformes were less affected by the sound system while the deflection of clupeoid species was particularly effective. Average intake rates of Clupea harengus and Sprattus sprattus decreased by 94·7 and 87·9%, respectively. The results were explained as a function of species-specific differences in hearing ability and swimming performance. In general, species without swimbladders showed no or a moderate response while intake rates of species with accessory structures increasing the hearing abilities, such as a swimbladder or a functional connection between the swimbladder and the inner ear, were significantly reduced during test periods

The CERL fish behaviour flume

SIGLELD:3106.133(CERL-RD/L--2178N81). / BLDSC - British Library Document Supply CentreGBUnited Kingdo

The equivalent adult approach for assessing the value of juvenile fish kills, with reference to commercial species in British waters

SIGLEAvailable from British Library Document Supply Centre- DSC:7761.0388(RD/L--3454/R89) / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Trial of a Johnson 715 alloy wedge-wire screen at a UK coastal site

SIGLEAvailable from British Library Document Supply Centre- DSC:3106.12875(TPRD/L--3012/R86) / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Variations in migration behaviour and mortality of Atlantic salmon smolts in four different hydroelectric facilities

202