When selecting fish tracking equipment, you must choose the best hardware and programming options for your focus species and study objectives. All MTI fish tags provide depth and ambient temperature data in a time-series format. Use this flowchart and consider the following while choosing your PSAT model.
X-Tags are 43% smaller in volume than PSAT PTT-100s, making the former a more appropriate tool for tracking smaller species. X-Tags also archive two-minute depth and temperature readings that can be extracted if the tag is physically recovered (see Data: Tag Recovery). However, PSAT PTT-100s have a larger battery, allowing for longer transmission periods and consequently higher percentage data returns. Additionally, they can be programmed for use on species that dive to depths beyond 1250 m.
Dimensions: 1.6 in (4.06 cm) max diameter x 6.6 in (16.76 cm) length + 7.0 in (17.78 cm) antenna
Weight (in air): ~78 g
Dimensions: 1.3 in (3.30 cm) max diameter x 4.8 in (12.19 cm) length + 7.3 in (18.54 cm) antenna
Weight (in air): ~45 g
Programming:High Rate (HR) versus Standard Rate (SR)
HR tags record frequent pressure (depth) and temperature measurements for short-duration deployments (up to 30 days) — a great tool for post-release behavior and mortality studies. No geolocation is possible with HR programming. SR tags record data at wider intervals, making them ideal for significantly longer deployments. SR tags also use light-level records to determine daily geolocation estimates, allowing for possible track reconstruction.
Key Features & Options
Depth data resolution
Temperature data resolution
Daily light-based geolocations
Transmitted time-series data sampling rate (minutes)
Recovered tag data sampling rate (minutes)
Pressure sensor capable of recording depths >1250 m
Adjustable Constant Pressure Release
Delay Constant Pressure Release
Dual band constant pressure programming
* 0.34 m in archived dataset
** Daily minimum and maximum light-levels only
*** If a tag is recovered and returned to us, we can extract the archived dataset that includes high-resolution light-level data.
† Sampling rate is dependent on deployment duration. Contact us for details.