IMPROVEMENT OF FISH HABITAT IN A NORWEGIAN RIVER CHANNELIZATION SCHEME

被引：5

作者：

BRITTAIN, JE

EIE, JA

BRABRAND, A

SALTVEIT, SJ

HEGGENES, J

机构：

[1] Freshwater Ecology and Inland Fisheries Laboratory, Zoological Museum, University of Oslo, Oslo, 0562

[2] Environmental Section, Norwegian Water Resources and Energy Administration (Nve), Oslo, 0301, PO Box 5091,Majorstua

[3] Freshwater Ecology and Inland Fisheries Laboratory, Zoological Museum, University of Oslo, Oslo, 0562

来源：

REGULATED RIVERS-RESEARCH & MANAGEMENT | 1993年 / 8卷 / 1-2期

关键词：

CHANNELIZATION; MITIGATION; BROWN TROUT HABITAT; SUBSTRATE;

D O I：

10.1002/rrr.3450080121

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Techniques for reducing adverse effects of river and lake regulation are being developed and tested within the framework of the Norwegian Biotope Adjustment Programme. The programme is illustrated by studies of a river flowing through the wetland area, Lesjaleirene, which has been drained and channelized to provide additional agricultural land. The channelized river has a homogeneous sand substrate. Experimental placement of rocks and stones increased brown trout densities, especially in areas in contact with the river banks. The new areas of rocks and stones provide cover for fish as well as a greater variation in depth and flow conditions.

引用

页码：189 / 194

页数：6

共 16 条

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