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The impact of signal crayfish (Pacifastacus leniusculus) on the recruitment of salmonid fish in a headwater stream in Yorkshire, England

Peay, S.; Guthrie, N.; Spees, J.; Nilsson, Erika LU and Bradley, P. (2009) In Knowledge and Management of Aquatic Ecosystems
Abstract
Signal crayfish (Pacifastacus leniusculus) have become increasingly widespread in rivers in Great Britain since their introduction in the late 1970s, causing extensive losses of indigenous white-clawed crayfish and negative impacts on communities of aquatic plants, invertebrates and benthic fish. Angling interests are increasingly concerned about possible impacts of signal crayfish on brown trout, sea trout (Salmo trutta) and Atlantic salmon (S. salar). This study of a limestone headwater stream in the Pennine uplands, Yorkshire, compares density of fish and two species of crayfish in two years. Signal crayfish are progressively replacing white-clawed crayfish. Surveys showed a significant negative relationship between the fish and signal... (More)
Signal crayfish (Pacifastacus leniusculus) have become increasingly widespread in rivers in Great Britain since their introduction in the late 1970s, causing extensive losses of indigenous white-clawed crayfish and negative impacts on communities of aquatic plants, invertebrates and benthic fish. Angling interests are increasingly concerned about possible impacts of signal crayfish on brown trout, sea trout (Salmo trutta) and Atlantic salmon (S. salar). This study of a limestone headwater stream in the Pennine uplands, Yorkshire, compares density of fish and two species of crayfish in two years. Signal crayfish are progressively replacing white-clawed crayfish. Surveys showed a significant negative relationship between the fish and signal crayfish. Sites with white-clawed crayfish (1-2 crayfish/trap night) had abundant juvenile trout (> 47.100 m(-2)). Signal crayfish reached higher abundance (4-8 crayfish/trap night) and those sites had fewer fish (0-18.8.100 m(-2)). The signal crayfish population will expand to other tributaries over time. If similar reduction of salmonid recruitment occurs in those streams, there is potential for significant impacts on an important recreational fishery. leniusculus) (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
biological invasion, crayfish, impact, fish
in
Knowledge and Management of Aquatic Ecosystems
issue
394-95
publisher
EDP Sciences
external identifiers
  • wos:000280166500012
ISSN
1961-9502
DOI
10.1051/kmae/2010003
language
English
LU publication?
yes
id
81428602-5447-409d-a24b-b67886bb701a (old id 1658100)
date added to LUP
2010-08-20 09:21:41
date last changed
2016-04-15 23:04:32
@article{81428602-5447-409d-a24b-b67886bb701a,
  abstract     = {Signal crayfish (Pacifastacus leniusculus) have become increasingly widespread in rivers in Great Britain since their introduction in the late 1970s, causing extensive losses of indigenous white-clawed crayfish and negative impacts on communities of aquatic plants, invertebrates and benthic fish. Angling interests are increasingly concerned about possible impacts of signal crayfish on brown trout, sea trout (Salmo trutta) and Atlantic salmon (S. salar). This study of a limestone headwater stream in the Pennine uplands, Yorkshire, compares density of fish and two species of crayfish in two years. Signal crayfish are progressively replacing white-clawed crayfish. Surveys showed a significant negative relationship between the fish and signal crayfish. Sites with white-clawed crayfish (1-2 crayfish/trap night) had abundant juvenile trout (> 47.100 m(-2)). Signal crayfish reached higher abundance (4-8 crayfish/trap night) and those sites had fewer fish (0-18.8.100 m(-2)). The signal crayfish population will expand to other tributaries over time. If similar reduction of salmonid recruitment occurs in those streams, there is potential for significant impacts on an important recreational fishery. leniusculus)},
  author       = {Peay, S. and Guthrie, N. and Spees, J. and Nilsson, Erika and Bradley, P.},
  issn         = {1961-9502},
  keyword      = {biological invasion,crayfish,impact,fish},
  language     = {eng},
  number       = {394-95},
  publisher    = {EDP Sciences},
  series       = {Knowledge and Management of Aquatic Ecosystems},
  title        = {The impact of signal crayfish (Pacifastacus leniusculus) on the recruitment of salmonid fish in a headwater stream in Yorkshire, England},
  url          = {http://dx.doi.org/10.1051/kmae/2010003},
  year         = {2009},
}