Scaling up the use of cleaner fish

Increased harvest volumes of salmon and reduced reliance on medicinal controls, with the knock-on benefits of job creation in rural areas and improved perceptions about the environmental sustainability of salmon farming.

Project Summary

Project life: 42 months

Anticipated benefits

Increased harvest volumes of salmon and reduced reliance on medicinal controls, with the knock-on benefits of job creation in rural areas and improved perceptions about the environmental sustainability of salmon farming.

74%

Industry Contribution

21%

SAIC Contribution

5%

Academia Contribution

Partners

  • Mowi Scotland
  • Scottish Sea Farms
  • BioMar
  • Institute of Aquaculture at the University of Stirling

Further reading

A wealth of information on the outcomes and findings of this project is available – follow the links at the bottom of this page.


Other Information

Ballan wrasse is a type of ‘cleaner fish’ which eats naturally occurring marine parasites, such as sea lice, from salmon. The majority of wrasse used in this way has been sourced from the wild in accordance with the guidelines from Marine Scotland, RSPCA Assured and local fishery boards. The aim of this project was to develop an aquaculture system for Ballan Wrasse in order to provide a sustainable stock.

 

BallanWrasse.jpg
Ballan Wrasse

The natural lifecycle of wrasse is six years and over this time, the project team bred wild-caught wrasse, raising the offspring from egg to adults of reproductive age. These offspring have now produced their own eggs and successfully hatched, the first fully farmed lifecycle of wrasse in a controlled environment.

This has provided a proven, repeatable procedure for breeding, weaning and rearing wrasse and will lead to a reduced reliance on wild stock.

This has provided a proven, repeatable procedure for breeding, weaning and rearing wrasse and will lead to a reduced reliance on wild stock.

FURTHER READING

2019: Thomas Cavrois Rogacki, Andrew Davie, Herve Migaud, Oscar Monroig.

Short-term lecithin enrichments can enhance the phospholipid and DHA contents of the polar lipid fraction of Artemia nauplii

Aquaculture 510, 122-130 2

 

2019: Thomas Cavrois Rogacki, Andrew Davie, Oscar Monroig, Herve Migaud. 

Elevated temperature promotes growth and feed efficiency of farmed Ballan wrasse juveniles (Labrus bergylta)

Aquaculture 511, 734237 2

 

2019: Thomas Cavrois Rogacki, Andrew Rolland, Andrew Davie, Herve Migaud, Oscar Monroig.

Enriching Artemia nauplii with selenium from different sources and interactions with essential fatty acid incorporation

Aquaculture 2

 

2019: Adam J. Brooker, Andrew Davie, Eric Leclercq, Benjamin Zerafa and Herve Migaud.

Predeployment acclimatisation to sea-cage conditions promotes natural behaviour in farmed Ballan wrasse (Labrus bergylta) used as cleaner fish in Atlantic salmon (Salmo salar) farms

Aquaculture 4

 

2018: Adam J Brooker, Athina Papadopoulou, Carolina Gutierrez, Sonia Rey, Andrew Davie, Herve Migaud.

Sustainable production and use of cleaner fish for the biological control of sea lice: recent advances and current challenges

Veterinary Records 4

 

2018: Leclercq, Benjamin Zerafa, Adam J. Brooker, Andrew Davie, Herve Migaud.

Application of passive-acoustic telemetry to explore the behaviour of Ballan wrasse (Labrus bergylta) and lumpfish (Cyclopterus lumpus) in commercial Scottish salmon sea-pens

Aquaculture 495, 1-12 4

 

2017: Bridie Grant, Andrew Davie, JB Taggart, S-LC Selly, Nicolas Picchi, Caroline Bradley, P Prodohl, Eric Leclercq, Herve Migaud.

Seasonal changes in broodstock spawning performance and egg quality in Ballan wrasse (Labrus bergylta)

Aquaculture 464, 505-514 1

 

2016: Clark W., Leclercq E., Migaud H., Nairn J. and Davie A.

Isolation, identification and characterisation of Ballan wrasse (Labrus bergylta) plasma pigment

Journal of Fish Biology 89, 2027-2084 3