River Dart fisheries survey 1969
This is the second River Dart Fisheries Survey produced by the Devon River Authority; which was carried out from April to July, 1969. The objective was to examine the distribution and relative abundance of salmonid fish in the River Dart, in order to assess the possibility or desirability, of increasing salmon smolt production of the river by artificial propagation or other means.In addition to the tributaries examined in the 1965 survey, further sections were studied on the River Hems and Holy Brook and reference should be made to the River Survey Report, 1965 for introductory information. The method includes the choice of sections and sampling techniques. The results go through the number/type/class of fishes counted while the survey took place and distribution patterns within the different transects/brooks. The discussion tries to remark the importance of understanding the differences between 1965 and 1969 surveys. The Appendix contains tables with totals of salmonid fish found and distribution sizes for each section, population density tables and a map with new surveyed sections.
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| Format: | monograph biblioteca |
| Language: | English |
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Devon River Authority
1969
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| Subjects: | Fisheries, Limnology, Management, England, South West, River Dart, Rivers, River fisheries, Freshwater fish, Migratory species, Salmon fisheries, Salmo salar, Salmo trutta, Fishery surveys, Fish populations, Population structure, Stock assessment, |
| Online Access: | http://hdl.handle.net/1834/27149 |
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