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New 100% online training course from FishVet Group and Benchmark Knowledge Services on The Health and Welfare of Atlantic Salmon

Insecticides Have Long-Term Effects on Aquatic Species

18 November 2015, at 12:00am

GLOBAL - New research indicates that commonly-used insecticide mixtures can continue to impact aquatic invertebrate species over multiple weeks, even when the chemicals are no longer detectable in water.

Through experiments meant to generally reflect runoff from a multiple-homeowner watershed, investigators found that pesticide mixtures had negative effects on the abundance of certain snails, water fleas, and crustaceans.

"The effects we observed indicate that many species were affected at a sublethal level," said Dr Simone Hasenbein, lead author of the Environmental Toxicology & Chemistry study.

"Thus, populations exposed to low concentrations of pesticides could be even more sensitive to other abiotic or biotic factors such as invasive species, or changes in salinity or temperature leading to a magnification of multi-stressor situations."

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The Health and Welfare of Atlantic Salmon course

It is vital that fish farm operatives who are responsible for farmed fish are trained in their health and welfare. This will help to ensure that fish are free from disease and suffering whilst at the same time promote good productivity and comply with legislation.

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