Results 291 to 300 of about 2,123,623 (331)

Downstream migration: problems, devices, research and development

1995
Rappel des problèmes posés par les aménagements hydroélectriques à la dévalaison des migrateurs. Evocation des différents dispositifs permettant de réduire ces dommages. Définition des priorités à accorder dans le domaine de la recherche et du développement.
Larinier, M., Travade, F.
openaire   +1 more source

Lateral and vertical distribution of downstream migrating juvenile sea lamprey

Journal of Great Lakes Research, 2018
Abstract Sea lamprey is considered an invasive and nuisance species in the Laurentian Great Lakes, Lake Champlain, and the Finger Lakes of New York and is a major focus of control efforts. Currently, management practices focus on limiting the area of infestation using barriers to block migratory adults, and lampricides to kill ammocoetes in infested ...
V. Alex Sotola, Scott M. Miehls, Lee G. Simard, J. Ellen Marsden   +3 more
openaire   +1 more source

The Migrant Dipper: A Trap for Downstream-Migrating Fish

The Progressive Fish-Culturist, 1966
(1966). The Migrant Dipper: A Trap for Downstream-Migrating Fish. The Progressive Fish-Culturist: Vol. 28, No. 2, pp. 96-102.
openaire   +1 more source

Downstream Migration, Population Size, and Feeding of Juvenile Rainbow Trout

Journal of Great Lakes Research, 1983
Emigration of juvenile rainbow trout (Salmo gairdneri) from a tributary of Lake Superior was associated with receding water levels and rising water temperatures (peaking in mid-June). According to 1973 and 1979 estimates, about 23,000 juvenile rainbow trout inhabited the creek each year. Eleven major taxa of benthic organisms were collected in 1972, of
openaire   +1 more source

Downstream migration and mortality of larval Ayu (Plecoglossus altivelis altivelis) on the Sanriku coast, northern Japan

Environmental Biology of Fishes, 2019
M. Hata, T. Otake
semanticscholar   +1 more source

The Dependence of the Duration of Downstream Migration of Burbot (Lota lota) Larvae on the Hepatosomatic Index of Spawners

Russian journal of ecology, 2019
A. R. Koporikov, V. Bogdanov
semanticscholar   +1 more source

Active Outcome of Pink Salmon Oncorhynchus gorbuscha (Salmonidae) Fry into the Water Current for Passive Downstream Migration

Journal of Ichthyology : A Translation of Voprosy Ikhtiologii, 2019
D. Pavlov, E. A. Kirillova, P. Kirillov
semanticscholar   +1 more source

Multiscale comparison of eel downstream migration and water discharge

2005
As a migratory fish, the eel is particularly threatened by obstacles on waterways. One of the ways to mitigate entrainment of downstream migrants into the turbines of hydroelectric facilities, would be to predict the runs and behavior of eels according to environmental parameters. Here we investigate the link between migration peaks and river discharge
Durif, Caroline, Travade, F., Elie, Pierre, Gosset, Claude   +3 more
openaire   +1 more source

Method for Monitoring Downstream-migrating Alewives

The Progressive Fish-Culturist, 1980
George S. Libey, James R. Beltz
openaire   +1 more source

Patterns of Downstream Migration of Pink Salmon Oncorhynchus gorbuscha in the Malaya Khusi River (Sakhalin Oblast)

Journal of Ichthyology : A Translation of Voprosy Ikhtiologii, 2018
P. Kirillov, E. A. Kirillova, D. Pavlov
semanticscholar   +1 more source