AS | AC | BS | BC | |
---|---|---|---|---|
Initial number of oysters | 160 | 153 | 165 | 155 |
Mean mortality of sets 1 to 3 of trial 3 (Feb to Mar 2013) (%) | 14 | 71 | 33 | 80 |
Mortality between trial 3 and the first set of trial 4 (%) | 74 | 90 | 32 | 97 |
First set of trial 4 in Mar 2014 (%) | 46 | 40 | 28 | 100 |
Mortality between the two sets of trial 4 (%) | <5 | <5 | <5 | – |
Second set of trial 4 in Nov 2014 (%) | 60 | 0 | 38 | – |
Final oysters number remaining after three successive challenges | 6 | 1 | 26 | 0 |
Cumulated mortality after three successive challenges (%) | 96 | 99 | 84 | 100 |