Written question asked by William Ross (Ulster Unionist Party), in the House of Commons. It was due for an answer on Wednesday, 27 January 1988. It was answered by Peter Viggers (Conservative) on Wednesday, 27 January 1988 on behalf of the Northern Ireland Office.

---

Untitled Written question

Question

When was disease in fish known as UDW first recorded in a NI river; what were peak years of incidence; which rivers were most affected; when did incidence of this disease become so low as not cause concern over future of salmon stocks; & what were principal effects on salmon stocks.

---

Secondary information

Type

Written question

Reference

126 c290-1W

Session

1987-88

Subjects

Northern Ireland Rivers Salmon Ulcerative dermal necrosis