V7 to V16 – 69 kHz
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Overview
VEMCO coded tags come in a variety of sizes, power outputs, battery life and sensor options.
VEMCO coded tags come in a variety of sizes, power outputs, battery life and sensor options. The larger diameter tags have more power but also weigh more than small tags. The tag size being used depends on a number of factors, including the size of the animal carrying the tag. The following table provides a quick comparison of what’s available to help you choose the most appropriate tags for your study. For more details on options available and individual datasheets for each tag family, see Downloads section.
Tag Family Diameter Minimum Size:
Length (mm),
Weight in
Water (g)Maximum Size:
Length (mm),
Weight in
Water (g)Power Output (dB re 1 uPa @ 1m) Sensors:
T-Temp
P-Pressure (depth)Battery Life Example (Sensors: None) (Delay: 90 secs) V7 7 mm 18 mm,
0.7 g22.5 mm,
1.0 g136 Available 255 days V8 8 mm 20.5 mm,
0.9 g20.5 mm,
0.9 g144-147 None 199 days V9 9 mm 24 mm,
2.1 g31 mm,
2.9 g146-151 Available 550 days V13 13 mm 30.5 mm,
5.1 g39 mm,
5.5 g147-154 Available 1264 days V16 16 mm 54 mm,
8.1 g98 mm,
17.3 g150-162 Available 10 years -
Gallery
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Frequently Asked Questions
Can marine mammals hear acoustic tags?
There have been studies conducted over the past several years, showing that some marine mammals can potentially hear acoustic tags operating between 50 and 85 kHz. However, with over 40 years of acoustic telemetry studies to date, we are unaware of any study or any evidence that has shown that the ability to hear some acoustic tags can or will translate into modified foraging behavior in the wild or that tagged fish in the wild would be predated upon at higher rates than non-tagged fish.
There are many varieties of marine mammals and while it is likely that some can hear tags in certain circumstances, the natural environment would make this extremely challenging. The tags used emit very short pulses at random and infrequent intervals and at relatively low power levels and are attached to a wide variety of species, both prey for and predators of marine mammals. Considering that the natural environment is abundant with louder acoustic noise sources, it is unlikely that tags could be heard in any consistent manner.
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Specifications
Tag Family Diameter Minimum Size:
Length (mm),
Weight in
Water (g)Maximum Size:
Length (mm),
Weight in
Water (g)Power Output (dB re 1 uPa @ 1m) Sensors:
T-Temp
P-Pressure (depth)Battery Life Example (Sensors: None) (Delay: 90 secs) V7 7 mm 18 mm,
0.7 g22.5 mm,
1.0 g136 Available 255 days V8 8 mm 20.5 mm,
0.9 g20.5 mm,
0.9 g144-147 None 199 days V9 9 mm 24 mm,
2.1 g31 mm,
2.9 g146-151 Available 550 days V13 13 mm 30.5 mm,
5.1 g39 mm,
5.5 g147-154 Available 1264 days V16 16 mm 54 mm,
8.1 g98 mm,
17.3 g150-162 Available 10 years Tag Family Diameter Minimum Size:
Length (mm),
Weight in
Air (g)Maximum Size:
Length (mm),
Weight in
Air (g)Power Output (dB re 1 uPa @ 1m) Sensors:
T-Temp
P-Pressure (depth)Battery Life Example (Sensors: Temp Only) (Acoustic Power: Low) (Delay: 90 secs) V7TP 7 mm 22 mm,
1.7 g24 mm,
2.0 g137-141 T,P,TP Contact Sales V9TP 9 mm 29 mm,
4.6 g31 mm,
4.9 g146-151 T,P,TP 405 days V13TP 13 mm 34 mm,
9.7 g39 mm,
11 g147-153 T,P,TP 1055 days V16TP 16 mm 54 mm,
19 g98 mm,
37 g150-162 T,P,TP 10 years -
Downloads