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A cetacean sighting survey was conducted as a component of the LAPE project Ecosystem survey, conducted 26 April – 22 May 2006. The survey was conducted from the Irish research vessel Celtic Explorer which is primarily specialized for hydroacoustic surveying but is fully equipped for trawling as well. The sighting platform (crows-nest) was approximately 16 m above the water.
The sighting survey used the same stratified transect design as the acoustic survey. Procedures were based on those used in 2004 with minor modifications to account for the differences in the vessel and other planned activities.

Celtic Explorer
Celtic Explorer


Results

A very small number of sightings, 10 in all, were made during the 2006 survey in spite of generally better weather conditions for sighting. They are listed below and indicated on the map by sighting number (SN in the table). No statistical analysis was attempted of these few data.

SN TimeStamp Latitude Longitude Species Num. Min. Max.
1 27/04/2006 17:25 17.5995 -62.1735 unidentified dolphins 30 15 40
2 27/04/2006 17:42 17.6450 -62.1630 Humpback 2 2 2
3 06/05/2006 17:21 12.7778 -60.3488 Humpback 5 4 5
4 07/05/2006 16:21 13.8013 -59.9908 Baleen whale 2 2 2
5 07/05/2006 16:46 13.8531 -60.0462 Humpback 1 1 2
6 07/05/2006 17:01 13.8826 -60.0436 Humpback 4 4 4
7 17/05/2006 11:35 16.0526 -61.8799 dolphins or porpoises 3   4
8 17/05/2006 12:30 15.9168 -61.9582 dolphins or porpoises 3   3
9 18/05/2006 13:15 14.2363 -61.9618 dolphins or porpoises 3   5
10 20/05/2006 12:55 17.0430 -61.0164 Spinner Dolphins 3 3  
 
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