Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

The Distribution of the White-Clawed Crayfish, Austropotamobius pallipes , in Ireland

The Distribution of the White-Clawed Crayfish, Austropotamobius pallipes , in Ireland Stocks of the freshwater crayfish in Ireland are thought to be some of the largest in Europe. To better protect this species, it is necessary to update data on the geographical distribution of Austropotamobius pallipes on the island. Records from surveys carried out by the Environmental Protection Agency (EPA) from 1990 to 2003 and from specific crayfish surveys (2000 to 2002) were compiled to generate a distribution map of A. pallipes in the Republic of Ireland. The map shows that A. pallipes is still widely distributed throughout the Irish midlands. Water quality data (Q values) were also analysed to establish if crayfish were, in general, found only in good water quality. Crayfish were most often encountered in unpolluted conditions but were also found in slightly polluted and moderately polluted water. Some populations were even found at sites with very low water quality. The percentage occurrence of crayfish sites (17.6) is broadly similar to that recorded in a survey carried out between 1976 and 1985. An abundant stock of A. pallipes in Ireland would act as a safeguard for this endangered European species. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Biology and Environment: Proceedings of the Royal Irish Academy Royal Irish Academy

The Distribution of the White-Clawed Crayfish, Austropotamobius pallipes , in Ireland

Loading next page...
 
/lp/royal-irish-academy/the-distribution-of-the-white-clawed-crayfish-austropotamobius-7PS0gBz0ew
Publisher
Royal Irish Academy
Copyright
Copyright © 2005 RIA
ISSN
0791-7945
eISSN
2009-003X
DOI
10.3318/BIOE.2005.105.2.65
Publisher site
See Article on Publisher Site

Abstract

Stocks of the freshwater crayfish in Ireland are thought to be some of the largest in Europe. To better protect this species, it is necessary to update data on the geographical distribution of Austropotamobius pallipes on the island. Records from surveys carried out by the Environmental Protection Agency (EPA) from 1990 to 2003 and from specific crayfish surveys (2000 to 2002) were compiled to generate a distribution map of A. pallipes in the Republic of Ireland. The map shows that A. pallipes is still widely distributed throughout the Irish midlands. Water quality data (Q values) were also analysed to establish if crayfish were, in general, found only in good water quality. Crayfish were most often encountered in unpolluted conditions but were also found in slightly polluted and moderately polluted water. Some populations were even found at sites with very low water quality. The percentage occurrence of crayfish sites (17.6) is broadly similar to that recorded in a survey carried out between 1976 and 1985. An abundant stock of A. pallipes in Ireland would act as a safeguard for this endangered European species.

Journal

Biology and Environment: Proceedings of the Royal Irish AcademyRoyal Irish Academy

Published: May 1, 2005

There are no references for this article.