RT Journal Article
T1 The susceptibility of Irish-grown and Galician-grown Manila clams, Ruditapes philippinarum, to Vibrio tapetis and Brown Ring Disease
A1 Drummond, Linda C.
A1 Balboa Méndez, Sabela
A1 Beaz-Hidalgo, Roxana
A1 Mulcahy, Máire F.
A1 Barja Pérez, Juan Luis
A1 Culloty, Sarah C.
A1 López Romalde, Jesús
K1 Vibrio tapetis
K1 Brown Ring Disease (BRD)
K1 Manila clam
K1 Susceptibility
K1 Ireland
K1 Galicia
AB Brown Ring Disease (BRD), which affects the Manila clam in Europe, is caused by the bacterium, Vibrio tapetis. BRD has been diagnosed in Ireland on only one occasion (1997) although the aetiological agent has recently been detected in apparently healthy Manila clams from a number of sites around the Irish coast. The present work investigated the susceptibilities to BRD of two stocks of Manila clams, one from Ireland and the second from Galicia, north-western Spain, where BRD has been reported on a number of occasions. Exposure of the clams was by addition of V. tapetis to the holding waters. Development of BRD was assessed by the appearance of brown ring signs on the host shells, by bacterial isolation and characterization, and by detection of the bacterium by PCR. The pathogen was recovered from infected individuals and confirmed as V. tapetis by biochemical tests and a slide agglutination test. Galician clams experienced significantly higher mortalities, BRD prevalences and V. tapetis levels than Irish clams. Background infection with V. tapetis in the control stocks prevented conclusions being drawn on comparative susceptibility of the two stocks. Irish clams were significantly affected by the experimental challenge, as demonstrated by the development of BRD and an increase in V. tapetis levels. Results illustrate the vulnerability of Irish clams to BRD and have implications for the movement and transfer of clam seed in Ireland.
PB Elsevier
YR 2007
FD 2007
LK https://hdl.handle.net/10347/38941
UL https://hdl.handle.net/10347/38941
LA eng
NO Journal of Invertebrate Pathology Volume 95, Issue 1, May 2007, Pages 1-8
NO This work was carried out with the support of the Marine Institute, Ireland and the Marine RTDI Measure, Productive Sector Operational Programme, National Development Plan 2000–2006 (Ph.D./01/006/2) and with the support of the Ministerio de Educación y Ciencia (MEC), Spain (Grant AGL2003-09307-C02-00). R.B. wishes to thank the MEC for a research fellowship.
DS Minerva
RD 26 abr 2026