Duration of interaction (minutes) | % (#) of boats following protocol | % (#) of boats not following protocol |
<10 | 39.5 (30) | 58.5 (62) |
10-30 | 43.4 (33) | 29.2 (31) |
30-60 | 1.3 (1) | 9.4 (10) |
>60 | 15.8 (12) | 2.8 (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 | 199 | 418 |
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 (15.7%) | |
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 | 62 (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 | 33 (16.7%) | |
Yes, followed protocol, interaction lasted 30 to 60 minutes | 17 (8.6%) | |
Yes, followed protocol, interaction lasted less than 10 minutes | 30 (15.2%) | |
Yes, followed protocol, interaction lasted more than 60 minutes | 12 (6.1%) | |
Interaction - Was a tow required? | ||
Did not answer | 2 | |
No | 161 (81.7%) | |
Yes | 36 (18.3%) | |
Interaction - Was the boat damaged and in need of repair? | ||
Did not answer | 2 | |
No | 68 (34.5%) | |
Yes, extensive - major works required | 43 (21.8%) | |
Yes, minor - will wait until the end of the season | 14 (7.1%) | |
Yes, moderate - immediate repairs required | 72 (36.5%) | |
Uneventful passage - Orcas seen or not | ||
Did not answer | 1 | |
No | 402 (96.4%) | |
Yes | 15 (3.6%) | |
Boat Type | ||
Did not answer | 1 | |
Fishing Vessel | 1 (0.5%) | |
Motor | 3 (1.5%) | 1 (0.2%) |
Sail | 195 (98.0%) | 416 (99.8%) |
Boat length (metres) | ||
10 - 12.5m | 79 (39.7%) | 166 (39.7%) |
12.5 - 15m | 69 (34.7%) | 168 (40.2%) |
Over 15m | 42 (21.1%) | 64 (15.3%) |
Under 10m | 9 (4.5%) | 20 (4.8%) |
Hull topsides colour | ||
Dark colour | 30 (15.2%) | 79 (18.9%) |
Did not answer | 2 | 1 |
White/light | 167 (84.8%) | 338 (81.1%) |
Motoring or sailing | ||
Did not answer | 3 | 2 |
Hove-to | 1 (0.5%) | 1 (0.2%) |
Motoring | 68 (34.7%) | 83 (20.0%) |
Motorsailing | 67 (34.2%) | 187 (45.0%) |
Sailing | 60 (30.6%) | 145 (34.9%) |
Speed (knots) | ||
0 - 2 | 4 (2.0%) | 2 (0.5%) |
3 - 4 | 32 (16.2%) | 33 (7.9%) |
5 - 7 | 142 (72.1%) | 362 (86.8%) |
8 - 11 | 19 (9.6%) | 20 (4.8%) |
Did not answer | 2 | 1 |
Rudder | ||
Spade | 87 (45.3%) | 206 (49.4%) |
Twin rudder | 46 (24.0%) | 79 (18.9%) |
Did not answer | 7 | 1 |
Full skeg | 27 (14.1%) | 67 (16.1%) |
Keel hung | 9 (4.7%) | 16 (3.8%) |
Semi skeg | 23 (12.0%) | 49 (11.8%) |
Antifoul colour | ||
Black | 88 (44.7%) | 115 (27.8%) |
Blue | 54 (27.4%) | 131 (31.7%) |
Coppercoat | 14 (7.1%) | 72 (17.4%) |
Did not answer | 2 | 5 |
Green | 4 (2.0%) | 9 (2.2%) |
Other | 9 (4.6%) | 12 (2.9%) |
Red | 15 (7.6%) | 34 (8.2%) |
White | 13 (6.6%) | 40 (9.7%) |
Autopilot | ||
Did not answer | 6 | 1 |
Off | 47 (24.4%) | 54 (12.9%) |
On | 146 (75.6%) | 363 (87.1%) |
Trailing a dinghy or other inflatable? | ||
Did not answer | 4 | 1 |
No | 194 (99.5%) | 408 (97.8%) |
Towing and interacted with inflatable first | 1 (0.5%) | |
Yes | 9 (2.2%) | |
Depth gauge | ||
Did not answer | 6 | 3 |
Off | 17 (8.8%) | 53 (12.8%) |
On | 176 (91.2%) | 362 (87.2%) |
Cloud cover | ||
0 - 25% | 110 (57.9%) | 206 (53.2%) |
25 - 50% | 43 (22.6%) | 88 (22.7%) |
50 - 75% | 16 (8.4%) | 50 (12.9%) |
75 - 100% | 21 (11.1%) | 43 (11.1%) |
Did not answer | 9 | 31 |
Darkness or daylight (select more than one if applicable) | ||
Dawn | 17 (8.5%) | 1 (0.2%) |
Day | 139 (69.8%) | 298 (71.3%) |
Dusk | 15 (7.5%) | 14 (3.3%) |
Night | 28 (14.1%) | 105 (25.1%) |
Depth (metres) | ||
20 - 40m | 18 (9.2%) | 144 (36.1%) |
200m+ | 62 (31.8%) | 67 (16.8%) |
40 - 200m | 113 (57.9%) | 114 (28.6%) |
Did not answer | 4 | 19 |
Up to 20m | 2 (1.0%) | 74 (18.5%) |
Distance off land (nautical miles) | ||
0 - 2 | 21 (10.6%) | 163 (39.9%) |
2 - 5 | 54 (27.3%) | 128 (31.3%) |
5 - 10 | 48 (24.2%) | 49 (12.0%) |
Did not answer | 1 | 9 |
Over 10 | 75 (37.9%) | 69 (16.9%) |
Sea state | ||
Calm | 120 (61.5%) | 210 (50.5%) |
Did not answer | 4 | 2 |
Moderate | 60 (30.8%) | 187 (45.0%) |
Rough | 15 (7.7%) | 19 (4.6%) |
Wind speed (Beaufort) | ||
0 - 2 (0 - 6 knots) | 69 (35.2%) | 107 (25.8%) |
3 - 4 (7 - 16 knots) | 82 (41.8%) | 202 (48.7%) |
5 - 6 (17 - 27 knots) | 38 (19.4%) | 88 (21.2%) |
7+ (28 knots+) | 7 (3.6%) | 18 (4.3%) |
Did not answer | 3 | 3 |
Were you trailing a fishing lure when the interaction commenced? | ||
Did not answer | 130 | 263 |
No | 62 (89.9%) | 140 (90.3%) |
Yes | 7 (10.1%) | 15 (9.7%) |
During the Interaction did one or more orcas make physical contact with the boat? | ||
Did not answer | 130 | |
No | 15 (21.7%) | |
Yes | 54 (78.3%) | |
If no, how close were the orcas to the boat in metres | ||
Did not answer | 199 | |
Adult | ||
Did not answer | 153 | |
1 | 16 (34.8%) | |
2 | 17 (37.0%) | |
3 | 5 (10.9%) | |
4 | 5 (10.9%) | |
5 | 2 (4.3%) | |
6 | 1 (2.2%) | |
Juvenile | ||
Did not answer | 176 | |
1 | 7 (30.4%) | |
2 | 12 (52.2%) | |
3 | 1 (4.3%) | |
4 | 1 (4.3%) | |
5 | 2 (8.7%) | |
Uncertain | ||
Did not answer | 173 | |
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 | 119 (59.8%) | 265 (63.4%) |
Within 3 days of spring tide | 80 (40.2%) | 153 (36.6%) |