Duration of interaction (minutes) | % (#) of boats following protocol | % (#) of boats not following protocol |
<10 | 39.2 (29) | 58.1 (61) |
10-30 | 43.2 (32) | 29.5 (31) |
30-60 | 1.4 (1) | 9.5 (10) |
>60 | 16.2 (12) | 2.9 (3) |
Percentages below are of the number of respondents to the particular question who had an interaction/uneventful passage as appropriate. Note - where not all respondents answered a question the number who did not answer is shown. If you intend to conduct your own analysis, please use raw numbers and work out percentages according to your needs.
Interaction # (%) | Uneventful # (%) | |
---|---|---|
Number of responses | 196 | 399 |
Did you follow the GTOA protocol (drop sails, stop boat, engine off and keep a low profile) and how long did the interaction continue? | ||
Did not answer | 1 | |
No, did not follow protocol, interaction lasted 10 to 30 minutes | 31 (15.9%) | |
No, did not follow protocol, interaction lasted 30 to 60 minutes | 10 (5.1%) | |
No, did not follow protocol, interaction lasted less than 10 minutes | 61 (31.3%) | |
No, did not follow protocol, interaction lasted more than 60 minutes | 3 (1.5%) | |
Yes, followed protocol, interaction lasted 10 to 30 minutes | 32 (16.4%) | |
Yes, followed protocol, interaction lasted 30 to 60 minutes | 17 (8.7%) | |
Yes, followed protocol, interaction lasted less than 10 minutes | 29 (14.9%) | |
Yes, followed protocol, interaction lasted more than 60 minutes | 12 (6.2%) | |
Interaction - Was a tow required? | ||
Did not answer | 2 | |
No | 158 (81.4%) | |
Yes | 36 (18.6%) | |
Interaction - Was the boat damaged and in need of repair? | ||
Did not answer | 2 | |
No | 67 (34.5%) | |
Yes, extensive - major works required | 43 (22.2%) | |
Yes, minor - will wait until the end of the season | 14 (7.2%) | |
Yes, moderate - immediate repairs required | 70 (36.1%) | |
Uneventful passage - Orcas seen or not | ||
Did not answer | 1 | |
No | 383 (96.2%) | |
Yes | 15 (3.8%) | |
Boat Type | ||
Did not answer | 1 | |
Fishing Vessel | 1 (0.5%) | |
Motor | 3 (1.5%) | 1 (0.3%) |
Sail | 192 (98.0%) | 397 (99.7%) |
Boat length (metres) | ||
10 - 12.5m | 76 (38.8%) | 153 (38.3%) |
12.5 - 15m | 69 (35.2%) | 164 (41.1%) |
Over 15m | 42 (21.4%) | 62 (15.5%) |
Under 10m | 9 (4.6%) | 20 (5.0%) |
Hull topsides colour | ||
Dark colour | 30 (15.5%) | 75 (18.8%) |
Did not answer | 2 | 1 |
White/light | 164 (84.5%) | 323 (81.2%) |
Motoring or sailing | ||
Did not answer | 3 | 2 |
Hove-to | 1 (0.5%) | 1 (0.3%) |
Motoring | 68 (35.2%) | 82 (20.7%) |
Motorsailing | 64 (33.2%) | 179 (45.1%) |
Sailing | 60 (31.1%) | 135 (34.0%) |
Speed (knots) | ||
0 - 2 | 4 (2.1%) | 2 (0.5%) |
3 - 4 | 31 (16.0%) | 33 (8.3%) |
5 - 7 | 140 (72.2%) | 345 (86.7%) |
8 - 11 | 19 (9.8%) | 18 (4.5%) |
Did not answer | 2 | 1 |
Rudder | ||
Spade | 86 (45.5%) | 192 (48.2%) |
Twin rudder | 46 (24.3%) | 76 (19.1%) |
Did not answer | 7 | 1 |
Full skeg | 26 (13.8%) | 66 (16.6%) |
Keel hung | 8 (4.2%) | 16 (4.0%) |
Semi skeg | 23 (12.2%) | 48 (12.1%) |
Antifoul colour | ||
Black | 87 (44.8%) | 109 (27.7%) |
Blue | 53 (27.3%) | 125 (31.7%) |
Coppercoat | 14 (7.2%) | 70 (17.8%) |
Did not answer | 2 | 5 |
Green | 4 (2.1%) | 9 (2.3%) |
Other | 8 (4.1%) | 12 (3.0%) |
Red | 15 (7.7%) | 34 (8.6%) |
White | 13 (6.7%) | 35 (8.9%) |
Autopilot | ||
Did not answer | 6 | 1 |
Off | 47 (24.7%) | 50 (12.6%) |
On | 143 (75.3%) | 348 (87.4%) |
Trailing a dinghy or other inflatable? | ||
Did not answer | 4 | 1 |
No | 191 (99.5%) | 389 (97.7%) |
Towing and interacted with inflatable first | 1 (0.5%) | |
Yes | 9 (2.3%) | |
Depth gauge | ||
Did not answer | 6 | 2 |
Off | 17 (8.9%) | 52 (13.1%) |
On | 173 (91.1%) | 345 (86.9%) |
Cloud cover | ||
0 - 25% | 108 (57.8%) | 201 (54.5%) |
25 - 50% | 42 (22.5%) | 79 (21.4%) |
50 - 75% | 16 (8.6%) | 48 (13.0%) |
75 - 100% | 21 (11.2%) | 41 (11.1%) |
Did not answer | 9 | 30 |
Darkness or daylight (select more than one if applicable) | ||
Dawn | 17 (8.7%) | 1 (0.3%) |
Day | 136 (69.4%) | 284 (71.2%) |
Dusk | 15 (7.7%) | 14 (3.5%) |
Night | 28 (14.3%) | 100 (25.1%) |
Depth (metres) | ||
20 - 40m | 18 (9.4%) | 139 (36.4%) |
200m+ | 62 (32.3%) | 64 (16.8%) |
40 - 200m | 111 (57.8%) | 113 (29.6%) |
Did not answer | 4 | 17 |
Up to 20m | 1 (0.5%) | 66 (17.3%) |
Distance off land (nautical miles) | ||
0 - 2 | 20 (10.3%) | 159 (40.5%) |
2 - 5 | 54 (27.7%) | 122 (31.0%) |
5 - 10 | 47 (24.1%) | 46 (11.7%) |
Did not answer | 1 | 6 |
Over 10 | 74 (37.9%) | 66 (16.8%) |
Sea state | ||
Calm | 117 (60.9%) | 203 (51.1%) |
Did not answer | 4 | 2 |
Moderate | 60 (31.3%) | 175 (44.1%) |
Rough | 15 (7.8%) | 19 (4.8%) |
Wind speed (Beaufort) | ||
0 - 2 (0 - 6 knots) | 67 (34.7%) | 106 (26.7%) |
3 - 4 (7 - 16 knots) | 81 (42.0%) | 191 (48.1%) |
5 - 6 (17 - 27 knots) | 38 (19.7%) | 82 (20.7%) |
7+ (28 knots+) | 7 (3.6%) | 18 (4.5%) |
Did not answer | 3 | 2 |
Were you trailing a fishing lure when the interaction commenced? | ||
Did not answer | 130 | 262 |
No | 59 (89.4%) | 122 (89.1%) |
Yes | 7 (10.6%) | 15 (10.9%) |
During the Interaction did one or more orcas make physical contact with the boat? | ||
Did not answer | 130 | |
No | 14 (21.2%) | |
Yes | 52 (78.8%) | |
If no, how close were the orcas to the boat in metres | ||
Did not answer | 196 | |
Adult | ||
Did not answer | 153 | |
1 | 16 (37.2%) | |
2 | 15 (34.9%) | |
3 | 5 (11.6%) | |
4 | 4 (9.3%) | |
5 | 2 (4.7%) | |
6 | 1 (2.3%) | |
Juvenile | ||
Did not answer | 174 | |
1 | 7 (31.8%) | |
2 | 11 (50.0%) | |
3 | 1 (4.5%) | |
4 | 1 (4.5%) | |
5 | 2 (9.1%) | |
Uncertain | ||
Did not answer | 170 | |
1 | 4 (15.4%) | |
2 | 6 (23.1%) | |
3 | 6 (23.1%) | |
4 | 3 (11.5%) | |
5 | 5 (19.2%) | |
6 | 1 (3.8%) | |
7 | 1 (3.8%) | |
State of tide | ||
Not within 3 days of springs | 118 (60.2%) | 259 (64.9%) |
Within 3 days of spring tide | 78 (39.8%) | 140 (35.1%) |