Array Design


Kintama’s 1st generation array design was realized as the Pacific Ocean Shelf Tracking (POST) Project in the Pacific Northwest, and is the design basis for the Ocean Tracking Network (OTN).  At its simplest level, this array design allows scientists to investigate where marine animals migrate.  It also gave Kintama and collaborating scientists the opportunity to test hypotheses about survival pressures on endangered salmon stocks.  However, the POST array design was intended to be a pilot array at a time when a very limited range of acoustic tags existed, the possible questions that could be addressed and the performance of this array were unclear.  There are now 13 different types of programmable VEMCO acoustic tags and experience has shown that the array design for one specific species of fish will not necessarily be suitable for another species that exhibits a different behavior and migration pattern, or for which different scientific questions are being addressed.

Kintama has subsequently developed a 2nd generation array design – our SentinelTM Array – that provides the optimal approach for precisely and accurately measuring the movement and survival of free-ranging marine and migratory animals across continental shelves world-wide.  Study designs based on the SentinelTM Array maximize both the statistical precision of the survival estimates, and the yield of biological information, by identifying the lowest cost array design.  In turn this array design minimizes the number of receivers and tags needed by optimizing the array geometry and tag programming, overall equipment and tag costs.