Table 2 List of the main species observed in the underwater footage. No of hauls: number of hauls in which the species was identified. No of individuals: total number of escaped individuals observed.

From: Vitality insights of fish escaping from a sorting grid installed on a bottom trawl net

 

No of hauls

No of escaped individuals

Probability of being “certainly alive” (%)

Probability of not being “certainly dead” (%)

Merluccius merluccius

7

623

75.71 (66.18–86.05)

87.19 (79.78–95.23)

Parapenaeus longirostris

7

1149

82.25 (72.69–87.97)

95.34 (92.32–97.32)

Mullus barbatus

6

1669

99.16 (98.45–99.77)

99.70 (99.19–100.00)

Eledone spp.

6

34

75.00 (52.00-93.75)

93.75 (79.31–100.00)

Illex coindetii

7

172

65.45 (52.38-75.00)

85.45 (75.76–92.44)

Nephrops norvegicus

4

118

67.26 (25.00-78.33)

93.81 (88.50–100.00)

Scyliorhinus canicula

4

100

91.92 (82.50-96.97)

98.99 (95.45–100.00)

Flatfish

6

204

74.50 (65.67–84.04)

83.50 (75.63–91.60)

Triglidae

4

59

94.92 (85.00-100.00)

100.00 (100.00-100.00)

  1. Probability of being “certainly alive” (%): probability of the species of being alive at the escapement (mean values % with 95% confidence intervals). Probability of not being “certainly dead” (%): probability of the species of being alive at the escapement if including also all the individuals for which the “condition unsure” category was assigned to (mean values % with 95% confidence intervals).
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