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Health Monitoring Software Supported by Provincial Government | OceansAdvance Inc

Health Monitoring Software Supported by Provincial Government | OceansAdvance Inc | Aquaculture Directory | Scoop.it

The Provincial Government (Newfoundland & Labrador, Canada) is providing approximately $80,000 to implement a software-based Sea Lice Decision Support System within the province, a project that supports the advancing of best practices in aquaculture. The Honourable Keith Hutchings, Minister of Fisheries and Aquaculture, announced the funding today, which will help the Newfoundland Aquaculture Industry Association establish and test this powerful tool for monitoring sea lice prevalence and evaluating control programs.

 

“Sea lice naturally occur in ocean environments and can impact many species, but with this internet-based software system, the industry will have far greater capacity to monitor and mitigate the impact on farmed fish. This $80,000 investment is in keeping with the millions invested in other types of infrastructure to ensure aquaculture in this province is always following best practices.” said Minister Hutchings at the news conference.

 

The funding for this project was provided jointly by the Department of Fisheries and Aquaculture and the Department of Innovation, Business, and Rural Development. The innovative software was initially developed by the Atlantic Veterinary College at the University of Prince Edward Island, and has been used with great success in New Brunswick thus far.


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John Bostock's curator insight, August 18, 2014 12:41 PM

This looks a very useful step forward. (Thanks to Will for bringing to our attention)

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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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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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Triploid and diploid Atlantic salmon show similar susceptibility to infection with salmon lice Lepeophtheirus salmonis - Frenzl - Pest Management Science - Wiley Online Library

Triploid and diploid Atlantic salmon show similar susceptibility to infection with salmon lice Lepeophtheirus salmonis - Frenzl - Pest Management Science - Wiley Online Library | Aquaculture Directory | Scoop.it

Sea lice infection is the most expensive disease factor for Atlantic salmon sea-cage farming. For triploid salmon to be accepted as a commercial possibility, investigation of susceptibility of triploid salmon to sea lice infection is a fundamental milestone. The susceptibility of diploid and triploid salmon to infection with Lepeophtheirus salmonis was examined in a tank trial in Scotland, a tank trial in Norway and a cage trial in Scotland.Results

Following a single infection challenge, results indicated a significant correlation between fish size and the number of attached sea lice. Triploid fish were larger than diploids at the smolt stage. In the tank trials, no difference was found between infection levels on diploids and triploids after a single infection challenge. The tank trial in Scotland continued with a second infection challenge of the same fish, which also showed no infection differences between ploidies. A borderline correlation between first infection and re-infection intensity was found for PIT-tagged diploid salmon examined after each challenge. No significant difference in louse infection between diploid and triploid salmon (~2 kg) was found in the cage trial undertaken under commercial conditions.

Conclusion

This study concludes that triploid Atlantic salmon are not more susceptible to sea louse infection than diploid fish.


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Ocea, Bremnes Seashore team up for thermal, green sea-lice solution | Undercurrent News

Ocea, Bremnes Seashore team up for thermal, green sea-lice solution | Undercurrent News | Aquaculture Directory | Scoop.it

Norwegian salmon farmer Bremnes Seashore has teamed up with aquaculture equipment and solutions provider Ocea to jointly develop the latter’s environmental friendly delousing solution, reported Norwegian media

 

Under a newly signed deal, the two companies have agreed to together further develop Ocea’s Thermolicer, which Ocea is bringing for the first time to Norway, said iLaks.no.

 

As part of the deal, Ocea will also supply Bremnes Seashore a new 400 metric ton feeding fleet, a renovation of a feeding station and other equipment for a combined value of NOK 28 million.

 

Ocea has worked on Thermolicer, a thermal solution for delousing fish, since 2007. It has patented the technique, which is being applied commercially in Chile already. The technique is now ready for commercial use in Norway, said the company.

 

Thermolicer works by pumping the fish into a lukewarm water bath for under 30 seconds. The lice cannot withstand the sudden temperature change and dies. The fish is then released lice-free into the sea, while the lice is collected and destroyed.

 

The technique has yielded very good results in Chile, with very low mortality both right after the treatment and over a longer period, said Ocea’s Karl Petter Myklebust.

 

Together with Bremnes, the company wants to further develop the process, with a focus on increasing its capacity while maintaining the fish’s wellbeing.


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John Bostock's curator insight, June 12, 2014 11:43 AM

In the interest of balance - here's another very interesting approach for sea lice treatment

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Reducing sea lice re-infestation risk from harvest water at a salmon farm site in Ireland using a bespoke sieving and filtration system

Reducing sea lice re-infestation risk from harvest water at a salmon farm site in Ireland using a bespoke sieving and filtration system | Aquaculture Directory | Scoop.it

Water samples from the harvest water outflow of a salmon farm harvest line were sampled at different stages for the presence of sea lice before and after filtration to establish the quantity of sea lice that escaped back into the water column. During the processing of fish through the harvest line the mechanical abrasion experienced by the fish cause sea lice to be knocked off into the harvest outflow water, these lice have the potential to re-infest remaining stock on site. The use of two types of filtration systems at a harvesting site where in-situ culling is on-going reduces the risk of re-infestation. In this site the sieve system was particularly effective. The reduction in sea lice numbers achieved by filtering discharge water using sieves was 89.5% using 1 mm screens and was over 99% using 80 μm filters.


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John Bostock's curator insight, May 11, 2014 7:02 PM

Straightforward but effective...

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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