V7 to V16 – 69 kHz

Back To Previous Page

  • Overview
  • Gallery
  • FAQ
  • Specifications
  • Downloads
  • Overview

    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, click on the links in the table below to see the individual datasheets for each tag family.

     

    For more details, see Downloads section.

  • Gallery
  • 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.

  • Specifications
     Tag Family Diameter Minimum Size:
    Length (mm),
    Weight in
    Water (g)
    Maximum Size:
    Length (mm),
    Weight in
    Water (g)
    Power Output (dB) Sensors:
    T-Temp
    P-Pressure (depth)
    Battery Life Example

    (Sensors: None)

    (Delay: 90 secs)

    V7 7 mm 18 mm,
    0.7 g
    22.5 mm,
    1.0 g
    136 None 220 days
    V8 8 mm 20.5 mm,
    0.9 g
    20.5 mm,
    0.9 g
    144-147 None 165 days
    V9 9 mm 21 mm,
    1.6 g
    45 mm,
    3.3 g
    145-151 Available 550 days
    V13 13 mm 36 mm,
    6 g
    48 mm,
    6.5 g
    147-153 Available 1135 days
    V16 16 mm 54 mm,
    8.1 g
    98 mm,
    17.3 g
    150-162 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) Sensors:
    T-Temp
    P-Pressure (depth)
    Battery Life Example

    (Sensors: Temp Only)

    (Acoustic Power: Low)

    (Delay: 90 secs)

    V9TP 9 mm 37.5 mm,
    4.9 g
    44 mm,
    6.3 g
    145-151 T,P,TP 405 days
    V13TP 13 mm 48 mm,
    13 g
    48 mm,
    13 g
    147-153 T,P,TP 779 days
    V16TP 16 mm 54 mm,
    19 g
    98 mm,
    37 g
    150-162 T,P,TP 10 years
  • Downloads

Keen to learn more? Join us on Facebook