In-stream distribution and interactions between native Gammarus duebeni celticus (Crustacea, Amphipoda) populations and the introduced species Gammarus pulex (L.), in the upper reaches of the River Liffey in Co. Wicklow, Ireland

Matson, R.; N.A.nin, B.; Kelly-Quinn, M.; Matson, R; N.A.nin, B; Kelly-Quinn, M

Home

>

Section

>

Chapter

In-stream distribution and interactions between native Gammarus duebeni celticus (Crustacea, Amphipoda) populations and the introduced species Gammarus pulex (L.) , in the upper reaches of the River Liffey in Co. Wicklow, Ireland

Matson, R.; N.A.nin, B.; Kelly-Quinn, M.

Occasional Publication of the Irish Biogeographical Society 29 September; 9: 135-143

2006

Accession: 022820902

Full-Text Article emailed within 1 workday

Payments are secure & encrypted

Summary

Historically, Gammarus pulex has displaced populations of Gammarus duebeni celticus all across Europe. G. duebeni now remains only in Brittany in Northwest France and across the island of Ireland. Since it was introduced to the Brittas River, G. pulex has become the dominant species in many locations, with G. duebeni in some instances totally absent. This study examined the populations of both species using samples taken from 1999 to 2001. No change in relative abundance of two species was observed. G. pulex dominated at seven of the nine sites. There was no difference between the occurrence of gammarids in the central and marginal habitats.