The home range of the signal crayfish in a British lowland river
The signal crayfish Pacifastacus leniusculus (Dana), a native of north-western North America, is now a common resident in some British fresh waters following its introduction to England in 1976 (Lowery & Holdich 1988). In 1984, signal crayfish were introduced into the River Great Ouse, the major lowland river in southern central England, where they have established a large breeding population. This study examines two sites near Thornborough Weir. For the measurement and description of home range a new eletronic microchip system and a modified capture-mark-recapture method were employed. Signal crayfish were marked or tagged to see if they gradually moved away from their burrows. This method proved to be successful for estimating population densities when a section of river is divided into several equidistant linear ”locations”.
Main Authors: | Guan, Rui-Zhang, Wiles, Peter |
---|---|
Format: | article biblioteca |
Language: | English |
Published: |
1997
|
Subjects: | Ecology, Biology, Limnology, England, Great Ouse River, Introduced species, Ecological distribution, Methodology, Rivers, |
Online Access: | http://hdl.handle.net/1834/22220 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Burrowing behaviour of signal crayfish, Pacifastacus leniusculus (Dana), in the River Great Ouse, England
by: Guan, Rui-Zhang
Published: (1994) -
Turbidity and plant growth in large slow-flowing lowland rivers. Progress Report: March 1989
by: Marker, A.F.H.
Published: (1989) -
Habitat use by 0+ cyprinid fish in the River Great Ouse, East Anglia
by: Garner, Paul
Published: (1997) -
River Ouse: fisheries drought report 1996
by: Frear, P.A.
Published: (1997-05) -
River Ure: fisheries drought report 1996
by: Frear, P.A.
Published: (1997-05)