Migratory behaviour of adult fast-growing brown trout (Salmo trutta, L.) in relation to water flow in a regulated norwegian river
Biogeography ; Discharge ; Fish ; Hydraulic works ; Migration ; Norway ; Population dynamics ; Stream ; Stream flow
The migration pattern of spawners of brown trout (Salmo trutta) in relation to water flow was analysed by radio-tracking in the regulated River Gudbrandsdalslågen, Norway. By being able to follow individual fish on their migration, the AA. were able
to study the effect of specially induced high flows and to determine the minimum discharge values to safeguard the spawning migration of the Hunder trout.
Age group ; Internal migration ; Migratory balance ; Migratory behaviour ; Migratoryflow ; Population redistribution ; Probability ; Regional disparities ; Time series ; United Kingdom
Clandestine immigration ; Europe ; European Union ; Frontier ; Geopolitics ; International migration ; Migratoryflow ; Turkey
The map of human mobility on the borders of European Union shows that the Turkey became one of the most significant territories, also because of a migratory scenario in which out-flows, in flows and transit flows coexist. The last ones – maybe
The main objective is to evaluate an iterative non-hierarchical taxonomic procedure for identifying disjoint functional regions by applying it to a matrix of migration flows between the districts of Slovakia in the years 1981-1985. - (MS)
A strong component hierarchical lustering method combined with the proportional fitting procedure is applied to a matrix of interdistrict migration flows. Thus make possible to gain insight into the regional structure of Slovakia and to identify
This paper discusses the consequences of the ongoing transformation process in term of migration in Hungary. Author investigates migration flows towards the Hungarian capital, provincial capitals, towns and rural areas using life-course approach. He