scholarly journals Engineering-geologic map of the southwestern Copper River basin and upper Matanuska River valley, Alaska

1985 ◽  
Author(s):  
John R. Williams
Keyword(s):  
River Basin ◽  
River Valley ◽  
Geologic Map

Social Forestry in Environmentally Degraded Regions of India: Case-study of the Mayurakshi Basin

1995 ◽  
Vol 22 (1) ◽  
pp. 20-30 ◽  
Author(s):  
Nandini Chatterjee
Keyword(s):  
Soil Erosion ◽  
River Basin ◽  
Forest Products ◽  
River Valley ◽  
Social Forestry ◽  
Fuel Wood

Social Forestry (SF) schemes have been implemented in India since the 1980s to combat deforestation, increase the supply of fuel-wood and fodder, and provide minor forest products for the rural populaton. The relevance of such Schemes in the Mayurakshi River Basin is basically due to its environmentally degraded state. Latterly the Basin has been brought under the Mayurakshi River Valley Project, but unless measures are undertaken to mitigate problems of soil erosion, the efficiency of the Project will be hampered.

scholarly journals Ichthyofauna of the Una river in the Paraíba do Sul Paulista River Valley, Southeastern of Brazil

2018 ◽  
Vol 18 (4) ◽  
Author(s):  
Juliano Rodrigues Honorio ◽  
Itamar Alves Martins
Keyword(s):  
River Basin ◽  
New Records ◽  
Sao Paulo ◽  
The State ◽  
River Valley ◽  
São Paulo ◽  
Number Of Individuals ◽  
Fyke Nets ◽  
Paraíba Do Sul River

Abstract: This study focus on an inventory of the ichthyofauna of the Una river, a tributary of the Paraíba do Sul river, located in the region of Paraíba do Sul River Valley, in the State of São Paulo. Sampling was carried out in three sampling areas along the channel of the Una river between April 2016 and March 2017. For the collection of fish specimens, was used angling, fyke nets, cast nets, dragnets and hand nets. A total of 1.534 specimens were collected, which corresponds to five different orders, 14 families, 26 genera and thirty species. The study revealed that the most significant number of reported species are from the orders Siluriformes and Characiformes. The Characidae family was the most representative concerning the wealth of species and Astyanax aff. bimaculatus (two spot Astyanax | lambari-do-rabo-amarelo) was the species with the highest number of individuals captured. The freshwater ichthyofauna of the Una river is composed of eight species considered allochthonous and one exotic. Of the thirty species listed in this study, five are new records for the Paraíba do Sul river basin.

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