A study of salmonid egg and fry survival in the River Taff catchment
This report looks at previous findings that egg survival was related to the percentage of fine solids in the spawning gravels of the River Taff. Green salmonid eggs were planted out at 8 sites in the Taff catchment; and eyed salmonid eggs were planted out at 27 sites. Gravel cores were taken at 18 of these sites and an analysis of their composition was carried out, particular attention being given to the pecentage of particles less than 1mm. As well as its method, the report includes its own findings and recommendations, which includes other factors influencing egg survival such as the need for water quality improvements.
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| Main Authors: | , , , , |
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| Format: | monograph biblioteca |
| Language: | English |
| Published: |
Welsh Water
1988-01
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| Subjects: | Ecology, Fisheries, Limnology, England, Taff Catchment, Rivers, Salmon fisheries, Fish Populations, Spawning, Fish eggs, Fry, Environmental assessment, Salmo trutta, Oncorhynchus mykiss, Water quality, |
| Online Access: | http://hdl.handle.net/1834/25200 |
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| Summary: | This report looks at previous findings that egg survival was related to the percentage of fine solids in the spawning gravels of the River Taff. Green salmonid eggs were planted out at 8 sites in the Taff catchment; and eyed salmonid eggs were planted out at 27 sites. Gravel cores were taken at 18 of these sites and an analysis of their composition was carried out, particular attention being given to the pecentage of particles less than 1mm. As well as its method, the report includes its own findings and recommendations, which includes other factors influencing egg survival such as the need for water quality improvements. |
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