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Do anti-parasitic medicines used in aquaculture pose a risk to the Norwegian aquatic environment? - Environmental Science & Technology (ACS Publications)

Do anti-parasitic medicines used in aquaculture pose a risk to the Norwegian aquatic environment? - Environmental Science & Technology (ACS Publications) | Aquaculture Directory | Scoop.it

Aquaculture production is an important industry in many countries and there has been a growth in the use of medicines to ensure the health and cost effectiveness of the industry. This study focussed in the inputs of sea lice medication to the marine environment. Diflubenzuron, teflubenzuron, emamectin benzoate, cypermethrin and deltamethrin were measured in water, sediment and biota samples in the vicinity of 5 aquaculture locations along the Norwegian coast. Deltamethrin and cypermethrin were not detected above the limits of detection in any samples. Diflubenzuron, teflubenzuron and emamectin benzoate were detected, and the data was compared the UK Environmental Quality Standards. The concentrations of emamectin benzoate detected in sediments exceed the environmental quality standard (EQS) on 5 occasions in this study. The EQS for teflubenzuron in sediment was exceeded in 67% of the samples and exceeded for diflubenzuron in 40% of the water samples collected. A crude assessment of the levels detected in the shrimp collected from one location and the levels at which chronic effects are seen in shrimp would suggest that there is a potential risk to shrimp. It would also be reasonable to extrapolate this to any species that undergoes moulting during its life cycle.


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John Bostock's curator insight, June 7, 2014 4:44 PM

The significance of these findings will no doubt be disputed, but substantial use of pesticides in the marine environment is not desirable. It was good therefore to see the innovations from Aqua Pharma  in treatment delivery and control.at the recent Aquaculture UK exhibition. 

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University of Stirling : An investigation into the molecular determinants of salmon louse (Lepeophtheirus salmonis (Krøyer, 1837)) susceptibility to the antiparasitic drug emamectin benzoate.

University of Stirling : An investigation into the molecular determinants of salmon louse (Lepeophtheirus salmonis (Krøyer, 1837)) susceptibility to the antiparasitic drug emamectin benzoate. | Aquaculture Directory | Scoop.it

PhD thesis by Stephen Carmichael available from the University of Stirling Research Repository.


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Method for detection of drug resistance in sea lice.

Method for detection of drug resistance in sea lice. | Aquaculture Directory | Scoop.it
Just as they have a method for detecting drug resistance in bacteria against antibiotics, researchers have found a way of doing the same for this parasite, the sea louse, that plagues the salmon industry in the north.

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John Bostock's curator insight, September 11, 2013 9:32 AM

This could help to avoid ineffective and costly treatments

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The surveillance programme for resistance to chemotherapeutants in L. salmonis in Norway 2013

The surveillance programme for resistance to chemotherapeutants in L. salmonis in Norway 2013 | Aquaculture Directory | Scoop.it

Grøntvedt RN, Jansen PA, Horsberg TA, Helgesen K, Tarpai A. The surveillance programme for resistance to chemotherapeutants in L. salmonis in Norway 2013. Surveillance programmes for terrestrial and aquatic animals in Norway. Annual report 2013.Oslo: Norwegian Veterinary Institute 2014


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John Bostock's curator insight, April 10, 2014 9:48 AM

Useful work from the Norwegian Veterinary Institute

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SLICE: A Sustainable Treatment Against Sea Lice

SLICE: A Sustainable Treatment Against Sea Lice | Aquaculture Directory | Scoop.it
ANALYSIS - Robin Wardle, Global strategic Marketing Director and Chris Haacke, Global Marketing Director, MSD Animal Health talk to Lucy Towers, TheFishSite.com Editor about MSD's sustainable sea lice treatment, SLICE.

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US Budget Cuts Could Threaten Aquaculture Drug Registrations

US Budget Cuts Could Threaten Aquaculture Drug Registrations | Aquaculture Directory | Scoop.it

The US Congress will vote soon on its operational budget cuts for fiscal year - 2014. If the planned cuts go ahead, it is likely that it will lead to a decrease in the amount of data available to support new drugs being used in aquaculture, writes Lucy Towers, TheFishSite Editor.

 

See more at: http://www.thefishsite.com/fishnews/21128/us-budget-cuts-could-threaten-aquaculture-drug-registrations#sthash.H1eoYYZj.dpuf


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John Bostock's curator insight, September 8, 2013 1:57 PM

The cost of drug registration is a major barrier to the development of new therapeutants in aquaculture in many countries