Readers like you keep news free for everyone.

More than 5,000 readers have already pitched in to keep free access to The Journal.

For the price of one cup of coffee each week you can help keep paywalls away.

Support us today
Not now
Thursday 5 October 2023 Dublin: 14°C
Inland Fisheries Ireland Salmon and trout killed on Ollatrim River
# Tipperary
Over 10,000 protected lamprey fish killed in suspected chemical poisoning
Inland Fisheries Ireland estimates that it will take several years for the species to recover.

MORE THAN 10,000 protected lamprey were among thousands of fish killed in a suspected chemical poisoning along a small Tipperary river earlier this month.

An investigation is underway after Inland Fisheries Ireland confirmed that nearly 15,000 fish were killed on the Ollatrim River, a tributary of the Nenagh River, on the weekend of 7-8 July.

Locals first reported seeing dead fish in the river on 7 July, before the agency inspected a site at Ballinahemery Bridge near Ballymackey, Nenagh on 9 July.

Dead fish were observed over a 5km-stretch of the river, with Inland Fisheries Ireland estimating that 14,749 fish were killed in total.

The dead fish included around 10,500 lamprey, 1,820 minnow, 1,400 brown trout, 805 stoneloach, 84 stickleback, 70 salmon, and 70 crayfish.

Dead Lamprey in the Ollatrim River Inland Fisheries Ireland Some of the dead lamprey in the Ollatrim River Inland Fisheries Ireland

The agency reported that the incident was the largest kill of lamprey in recent years, and anticipates that the recovery of the species will take several years.

It also suspects that a chemical agent, possibly a herbicide or pesticide which passed through the river, is responsible for the kill.

In a statement, the agency reminded the public and the farming community to be aware that herbicides and pesticides are extremely toxic to aquatic species and fish.

It also said that mixing of chemicals must be done far from natural watercourses, especially in current conditions when diluting waters are in short supply and the toxicity of chemicals is increased.

Inland Fisheries Ireland added that its confidential hotline is available to members of the public who wish to report water pollution incidents on 1890 34 74 24 or 1890 FISH 24.

Your Voice
Readers Comments
This is YOUR comments community. Stay civil, stay constructive, stay on topic. Please familiarise yourself with our comments policy here before taking part.
Leave a Comment
    Submit a report
    Please help us understand how this comment violates our community guidelines.
    Thank you for the feedback
    Your feedback has been sent to our team for review.

    Leave a commentcancel