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Table 2 Overview of data return from silver eels tagged with pop-up satellite archival transmitters and released on European coasts during the Galathea and EELIAD projects

From: Development and testing of attachment methods for pop-up satellite archival transmitters in European eel

Attachment method Total number tagged (n) Never achieved uplinks to the ARGOS system (n) Too little data retrieved for meaningful analysis (n) Premature pop-up with data retrieved (n) Regular pop-up at pre-programmed date (n)
Økland 97 24 10 62 1
Westerberg 63 10 7 39 7
  1. Data are given as number of eels (n) in each category. ARGOS: Advanced Research and Global Observation Satellites.