Effects of Regulation on Fish
Dharmaratne, P G1994
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Abstract: "Construction of a dam or weir alters natural river process causing physical, chemical and biological changes to, both upstream and downstream. Impoundment is severely affected on downstream with changing flow regime, water temperature, turbidity, dissolved nutrients, pH value, conductivity and also affect on geomorphological characteristics like river bed degradation and aggradation, river metamorphosis, vegetation encroachment and narrowing the channel. However, these morphological and environmental changes adversely affect on fish migration, lacking favourable habitats and spawning grounds and feeding patterns. In contrast to native fish, which are originated from marine background are differ from Northern Hemisphere salmon, trout and cyprinids. Due to adaption of some introduced fish in Australian aquatic habitats, natives have to compete with them for their resources. Therefore, further consideration is very important in application of technology for Australian freshwater fishes. Fortunately, some native fish can tolerate changing temperature, and different water qualities."
Main title:
Effects of Regulation on Fish / by P.G. Dharmaratne.
Author:
Dharmaratne, P G, authorUniversity of New South Wales, degree granting institution
Imprint:
Kensington School of Geography, University of New South Wales, Kensington. 1994.
Collation:
95 pages : illustrations, maps, charts ; 30 cm.
Notes:
Hawkesbury-Nepean Catchment Management Trust collection.
Contents:
Introduction -- Lotic Environment -- Changes in downstream flow -- Impace of sedimentation -- Impact of temperature -- Impact of turbidity -- Water chemistry -- Downstream morphological and ecological impacts on fish -- Interruption of fish migration -- Other consequences of impoundment -- Summary and conclusions -- References.
Thesis:
MAppSc School of Geography, University of New South Wales 1994.
Dewey class:
GREEN 0072 HNCMT333.95
Language:
English
Subject:
BRN:
103158
| Location | Collection | Call number | Status/Desc |
|---|---|---|---|
| Research | Tech Book | 333.95 EFF | Available |