Title: River Dart salmon spawning target and compliance assessment
Author: Josee Peress
Document Type: Monograph
Abstract:
This paper presents the Environment Agency methodology used to set up the spawning target for the River Dart and to assess its compliance. It also provides details of which and how data are collected. The methodology relies on the Environment Agency transportation process from the River Bush to the River Dart, based on habitat classification by stream order and altitude range, and on river specific information such as: the accessible stream area for salmon; percentage of spawners assumed within each combination of altitude range and stream order, ie, spawners distribution within the river catchment; percentage of grilse of the River Dart salmon population; percentage of females; fecundity. And on national means, such as: juvenile density, with proportion of fry and parr; and marine survival. After assessing these data, the transportation process uses a specific spreadsheet, presented in Table 1, to calculate the total egg target for the River Dart.
Publisher: Environment Agency
Publication Date: 1998
Publication Place: Bristol
Subject Keywords: Salmon fisheries; Salmon; Spawning; Fishery management; Rivers; Fertility; Ova; Population structure; Compliance; Fishery statistics
Geographic Keywords: Dart (Devon); South Devon catchment; Devon
Extent: n.p. [33]
Permalink: http://www.environmentdata.org/archive/ealit:804
Total file downloads: 288
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