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Table 5 Chance of detection (CoD) in the fluvial and lower estuary of observed receiver arrays

From: To hear or not to hear: selective tidal stream transport can interfere with the detectability of migrating silver eels in a Tidal River

 

Lower estuary

Fluvial estuary

Shortest transect

221 m

223 m

Detection probability

50%

53.64%

Ø (max.) silver eel swimming speeds

0.62 (1.86 m/s)

0.69 (1.44 m/s)

Ø Pings/transect

5.9 (1.9)

5.3 (2.5)

Estimated chance of min. 1 detection

98.3% (73.2%)

96.3% (78.9%)

  1. The bold values describe the CoD of a tagged eel under average (and maximum) swimming speeds