[Obstructions in streams and passing of fauna [dammings, falls, fish ladder, water channels]]
1984
Markmann, P.N. (Miljoestyrelsen, Copenhagen (Denmark). Landbrugskontoret)
AGROVOC关键词
书目信息
页码
pp. 21-25
其它主题
Insectos acuaticos; Dinamarca / oviposicion; Danemark / oviposition; Tuberia; Denmark/ oviposition
语言
丹麦语
注释
5 ill., 4 tables; 15 ref.
1985-08-15
AGRIS AP