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 Star-Oddi introduces DST milli-L, a low cost Temperature and Depth (TD) recording tag. The accuracy is not as good as in other DSTs made by Star-Oddi, but still more accurate compared to other low cost miniature TD loggers on the world market.
Depth accuracy is better than +/-0.8% of the range. Temperature accuracy better than +/-0.2°C. The low cost logging tag is ideal for use in large fish tagging studies, where budget is limited, and quantities are of importance for the recapture rate. A minimum quantity is required when ordering DST milli-L. Please contact us for more information.
 DST-compass is the latest research tool from Star-Oddi. DST-compass measures and stores information on compass directions (earth magnetic field) in addition to temperature and fish depth (pressure). This tag opens up interesting possibilities to access directions in movements of aquatic animals. The tag can cast extra light on various parts of their activity below the surface, e.g. on how they orientate and navigate during migration.
Salmon and Trout Research are conducting studies on salmon, using DST-compass. The magic of the salmon precise navigation when migrating to its home river to spawn after hundreds - thousands of kilometres migration in the ocean during feeding was one of the major inspiration for the development of DST-compass. It is appropriate that the first study using these tags focused on salmon migration in sea.
Read the full story and see preliminary data here.
Where do trout and charr swim in the sea?
.JPG) Eleven Arctic charr and eight sea trout were tagged externally or internally with DST milli depth and temperature measuring data storage tags before they were released into the sea in the Alta Fjord in north Norway in June 2002. All sea trout were
recaptured after they spent 1-40 days at sea, while all
Arctic charr were recaptured after 0.5-33 days at sea.
These species achieve most of their growth at sea during one to two summer months each year in northern Norway. The marine phase is very important for the life
history and production of Arctic charr and sea trout.
See the results from tags in the new scientific paper here.
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