Automatic rotifer (plankton) counter
A small Norwegian company has developed a rotifer counter. The counter is an instrument that collects fluid samples from rotifer cultures or marine fish larvae cultures and finds the density of rotifers. The instrument can sample from 10 fish or rotifer tanks. The instrument eliminates the need for tidy manual counting and provides better data for the farmer. Companies or R&D institutes that see other application areas and further developing possibilities are sought.
A small Norwegian company has developed an instrument that automatically takes samples and finds the density of rotifers, a plankton species used in farming of marine fish.
The rotifer counter uses computer imaging to measure the density of rotifers used in rotifer cultures and/or fish larvae tanks. The PC-based instrument can sample from 10 different sources. Historic data and trend lines can be examined while sampling or it can be exported to spreadsheet programs (i.e. Excel).
The system consists of the main unit contained in a 20 x 40 x 50 cm casing and a PC connected through a serial and USB cable. The samples are provided through hoses that can be connected to the main unit with nipples or quick disconnect couplings.
An expansion of the counter to a control system is planned. The measurement system can potentially be used to count other types of plankton and particles.
The live-feed production in a hatchery today is both costly and labour-intensive. Manual counting of live-feed is inaccurate because of varying sampling methods, and different people are involved in the counting.
An automatic live-feed counter is an important innovation to improve logistics and efficiency together with automating the live-feed production. This includes the feeding of fry and the feeding of the live-feed itself. This technology makes it possible to:
- Supervise the density of rotifers in fish tanks and plankton tanks to a much larger extent than today with less effort
- Reduce costs related to production of live-feed organisms and fry of marine species
- Control the density of prey for the fish larvae trough automatic feeding
Instruments, measuring equipment; Manufacturing control systems
Stage of Development:
Prototype/demonstrator available for testing
Current Stage of Development:
Available for demonstration
Intellectual Property Rights:
Exploitation of RTD Results:
Also National RTD Programme
Marketing agreement,Financial support,Information exchange/Training,Other,Joint further development,New way to use an existing production line,Engineering
- Type of partner sought:
Companies and RTD institutes that can benefit from this technology
- Task to be performed:
Contribute to further developing this technology in new areas (i.e. different plankton species or particles).
Sources of Support:
FLOR, Hans Jorgen (Mr)
Contact Organisation: SINTEF Technology and Society
Address: S.P. Andersens vei 5
Telephone Number: +47-73592596
Fax Number: +47-73591299
Last updated: 2013-03-01