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Please use this identifier to cite or link to this item: http://hdl.handle.net/10793/534

Title: Fish Kills in Ireland in 1993
Authors: Moriarty, C
Keywords: Leaflet
Issue Date: 1994
Publisher: Department of the Marine
Citation: Moriarty, C., "Fish Kills in Ireland in 1993", Irish Fisheries Leaflet, Department of the Marine 1994
Series/Report no.: Irish Fisheries Leaflet;159
Abstract: The pattern of fish kills in 1993 showed a dramatic change from that of the previous ten years. The number of incidents showed a very welcome reduction to a total of 33, the lowest since systematic records began to be kept in 1982. Only one case of damage caused by silage effluent was reported and two from farm effluents - in the recent past these were the most frequent and serious sources. However, fish kills provisionally attributed to 'enrichment' attained a record total of 16, most of them in the lakes in Co. Cavan in the Erne catchment. Sewage and runoff from agricultural land are the main sources of the phosphorous which brings about excessive blooms of microscopic algae. Enrichment has caused extremely serious problems in the past, in particular in Loughs Ennel and Sheelin. In both cases, remedial measures were successful, although problems have arisen again in the case of Lough Sheelin. The more widespread problem in the Erne catchment may be more difficult to contain and there are also signs of trouble in the Rivers Shannon and Lee. The trend of increasing numbers of enrichment-based fish kills does not necessarily mean that even more such incidents will take place in 1994 - but it is virtually certain that similar problems to those of 1993 will arise sooner or later unless action is taken.
URI: http://hdl.handle.net/10793/534
ISSN: 0332-1789
Appears in Collections:Irish Fisheries Leaflets

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