V5 – 180 kHz
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Smaller Fish, More Species
Weighing just 0.38 grams (V5-1H) and 0.46 grams (V5-2H) in water (0.65 and 0.77 grams in air), the V5 tag family is one of the smallest of VEMCO’s line of miniature coded transmitters. The V5 enables researchers to track and monitor smaller fish and a broader range of species than ever before!
Why 180 kHz Frequency?
Operating at 180 kHz, the V5 is designed to work well in both fresh and salt water. Choosing this frequency enabled VEMCO to develop a small, lightweight tag that would still operate well in marine environments. Tags with operating frequencies greater than 200 kHz are less effective in salt water. Depending on the conditions of your location, the V5 can have 150-200 metres range.
Detect More Tags
Researchers can now tag and release many more fish simultaneously due to the detection capabilities of our new tag transmission systems – High Residence (HR) and Pulse Position Modulation (PPM).
VEMCO Tag Activator (VTA)
The V5 does not have an activation magnet as is the case with larger transmitters. The tags are activated using a handheld unit, the VTA, that is exclusive to the 180 kHz line of transmitters only.
OTN Arctic Cumberland Sound Array
Species: Arctic skate, Greenland halibut, Greenland shark, Ringed seal
Cumberland Sound, on southern Baffin Island, supports a wide variety and number of arctic fish, seabird and marine mammal species and a community of 1,400 people (Pangnirtung). Significant changes have occurred in the Cumberland Sound ecosystem in the recent past, which are likely due to climatic changes. Ice condition is the most obvious change as the duration of ice cover and the extent of land-fast ice have been reduced. These changes in arctic ice cover will likely have serious impacts on the trophic interactions and movements of arctic species. This project will target the spatial, seasonal and temporal interaction of fish and marine mammals in the Cumberland Sound ecosystem. This will be accomplished by overlying the spatial and temporal movements of key fish and marine mammal species using a combination of satellite tags, acoustic (V6) and chat tags, and an array of VR2W receivers in the Sound, with current and on going studies of trophic interactions using stomach contents and chemical tracers (stable isotopes) from numerous species and levels of the trophic system.
Sacramento River Salmonid Habitat Study
Species: Chinook salmon, Steelhead, Green sturgeon
The US Army Corps of Engineers is implementing a multi-year fish tracking study to monitoring migration and rearing behavior of juvenile Chinook salmon, steelhead, and green sturgeon to support development of a fish behavioral model and learn more about how habitat may be utilized by these species in large rivers. This work is being conducted for the Sacramento River Bank Protection Project. www.spk.usace.army.mil/Missions/CivilWorks/SacramentoRiverBankProtection.aspx
- Tag smaller fish, more species
- Detect more tagged fish simultaneously
- V5 weighs just .38 grams in water