Acronym NOTVASK
Category
Aquaculture
Title Integration of technology and services for sustainable cleaning of net-pens for salmon Programme National Programme
Instrument (FP6)
Contact Type (FP7)
Strand (Interreg)
NA
Theme (FP7)
Activity Area (FP6)
Regional Area (Interreg)
Action (COST)
NA
Specific Programme (FP7)
NA
Funding source National Coordinator Nina Bloecher Coordinator email Nina.Bloecher@sintef.no
Coordinator institution
NA
Institutions involved
NA - Lerow AS (Norway) ,
NA - MOWI ASA (Norway) ,
NA - PSO AS (Norway) ,
SINTEF - SINTEF (Norway) ,
NA - Sperre AS (Norway) ,
Start year 2015 End year 2019 Funding (€) € 1,200,000 Website https://www.sintef.no/en/projects/2015/notvask-integrating-technology-and-services-for-su/ Summary Biofouling, i.e. undesired growth of organisms on submerged surfaces is in several aspects a problem for aquaculture nets. One of the challenges is related the use of cleaner fishes to keep the salmon lice count low. The cleaner fish preferably feeds on the biofouling and consequently the effect of cleaner fish against lice is reduced. Most fish farming companies use a combined strategy for biofouling management based on the use of copper coated nets and high pressure net cleaning. Unfortunately, todayís net cleaning technology is not sufficiently effective. One problem with high pressure cleaning is connected to the removal of copper coating from the net and its release into the environment, which is not meeting the demands of standards like from the Aquaculture Stewardship Council (ASC). Additionally, there are indications that some of the removed biofouling may harm fish gills.
Brynsløkken AS has hence the aim to develop new types of coating and cleaning technologies together with a consortium. The main focus of the innovation is to evaluate and develop 4 different net cleaning concepts: 1) vacuum cleaning that sucks biofouling of the net, 2) low pressure cleaning which may be used in higher frequency or on modified net surfaces and materials, 3) cleaning with a cavitationblaster that utilizes energy from the collapse of cavitation bubbles for removal, 4) induction cleaning based on net heating.
These selected technologies have the potential to clean:
- without damaging coatings
- more efficient so that quick re-growing of fouling organisms is prevented and consequently cleaning frequencies can be reduced
- without releasing biofouling wastes which may harm the fish
- more time and energy efficient
- in a way that fulfills the demand of the ASC
The project includes furthermore studies for the industrialization of the net cleaning concepts and the development of a best practice guide for net cleaning.
Keywords
Fish;
Impacts;
Biofouling;
Cage aquaculture;
Open sea aquaculture;
Salmon;
Engineering;
Marine Region
76
Not associated to marine areas
0
Marine Region Map
