Taxonomy

Globicephala melas | Long-finned Pilot Whale

Distribution

Status

Conservation status


HABITATS DIRECTIVE ARTICLE 17 REPORTING
RangeFavourable
PopulationFavourable
HabitatFavourable
Future ProspectsFavourable
Overall  Assessment of Conservation StatusFavourable
Overall Trend in Conservation StatusFavourable
Source: NPWS 2013.

IUCN Conservation Status

Ireland
Not evaluated*
Europe (1)Data deficient
Global (2)Data deficient
Sources: (1) European Mammal Assessment team 2007; (2) Taylor, B.L. et al 2008.
* There is currently no Irish Red List for Marine Mammals.

Legal status

Protected by the following legal instruments:

  • Habitats Directive (92/43/EEC) Annex IV
  • Convention on the Conservation of European Wildlife and Natural Habitats (Bern Convention) Appendix II
  • Convention on the Conservation of Migratory Species of Wild Animals (Bonn Convention) Appendix II*
  • Convention on Trade in Endangered Species of Wild Fauna and Flora (CITES) Appendix II
  • Council Regulation (EC) No. 812/2004
  • Wildlife Act (1976)
  • Wildlife (Amendment) Act (2000)
  • Whale Fisheries Act 1937
*Only particular populations are protected by this Convention, but individuals of some of those populations may occur in Irish waters.

Native status

The 2008 IUCN Global Red List for this species lists Ireland as one of the countries where it is native.

Source: Taylor, B.L. et al 2008.

Long-finned Pilot Whales are recorded year-round in Irish waters, however there is a seasonal variation in records- fewer animals are recorded in autumn and winter than in spring and summer. It is not clear as yet whether this is a result of variation in recording effort or an actual variation in presence.

Source: Wall, D. et al 2013.

Species Biology

Identification

  • Max body length: Adult male c. 6.2m (20ft), adult female c. 5.4m (17ft)
  • Average body length: 4m (13ft)
  • Blow: Strong and bushy, visible in good conditions and quite audible
  • Head: Bulbous and may overhang the snout on older males
  • Beak: Almost absent
  • Dorsal fin: Unmistakable, large, long at base, and rounded at the tip
  • Pectoral fin: As the name suggests, they are long, sickle-shaped & pointed at the tip
  • Colouring / Markings: Black apart from light coloured W shaped patch on throat.
Pilot Whales in Irish waters look very different to any other species; their backward sweeping fin, set well forward on a stocky elongated body is unique and may be sufficient for positive identification. In field conditions and in any light, they appear jet black or dark grey with no other markings.They are highly social, living in tight groups of between 20-80 individuals, but herds of several hundred have been observed.

Source: Irish Whale and Dolphin Group.

Habitat

Long-finned Pilot Whales are more likely to be recorded in deeper waters over and beyond the continental slope, in temperate to sub-polar waters and in both northern and southern hemispheres. They are more rarely recorded nearer coasts than in offshore waters.

Source: Source: Harris S., Yalden D.W. 2008.

Habitats include but are not necessarily limited to;

  • Open marine water (MW1)

Sources: Harris S., Yalden D.W. 2008.; Fossitt, J.A., 2001.

Reproduction

  • Max life expectancy:       40-50 years
  • Average life expectancy: 20 years
  • Gestation period:           16 months
  • Calves born:                  Late summer
  • Female sexual maturity:     6 years
  • Males sexual maturity:   12-13 years
Source: Irish Whale and Dolphin Group.

Threats faced

THREAT
ARTICLE 17 THREAT CODE
RANKING
Seismic exploration, explosions
H06.05Medium
Fishing and harvesting aquatic resources*F02 Medium
Death or injury by collision
G05.11
Low
Noise nuisance, noise pollution
H06.01
Low
Marine water pollution
H03
Low
Changes in abiotic conditionsM01Low
Threats and pressures from outside the EU territory
XE
Low
Threats and pressures from outside the member state
XO
Low
Source: NPWS 2013.

*This would include the threat to this species of becoming by-catch / accidental catch as well as the threat of a reduction in prey availability and also entanglement in fishing gear.

These threats accord well with threats outlined in the 2007 European Regional IUCN Red List assessment for the species which did not identify any other threats that are currently relevant in Irish waters.

Source: IUCN SSC Cetacean Specialist Group, 2007.


Conservation actions

In the Article 17 Habitats Directive reporting for the period 2007-2012 no Conservation Measures in place or in the process of being implemented were listed.

Source: NPWS 2013.

Apart from an acknowledgement of the existence of some legislative, and other, protection afforded the species there were no suggested Conservation Actions in the global 2012 IUCN Red List Assessment or the 2007 European Regional IUCN Red List Assessment that are currently applicable to Irish waters.

Source: IUCN SSC Cetacean Specialist Group 2007; Taylor, B.L. et al 2008

In a 2009 Cetacean Action Plan a total of 41 Actions were identified as part of the plan. The plan and the 2013 review of the plan are available from the NPWS website.

Source: DEHLG 2009; NPWS 2013a.

Distribution

World distribution(GBIF)

Occurs in temperate and and sub-polar waters. Populations occur in northern and southern hemispheres but these appear isolated from each other. The 'species' may actually consist of three separate species but further research is necessary.

Source:Taylor, B.L. et al 2008.

Accuracy of world distribution shown in the Global Biodiversity Information Facility (GBIF) map below will be constrained by, amongst other factors, data held but not shared by countries and organizations not participating in the GBIF.


Irish distribution

Long-finned pilot whales primarily occur in deep water beyond the Irish Shelf edge. The highest relative abundances  were recorded in the Rockall Trough and the lower slopes of the Porcupine Bank.

Source: Wall, D. et al 2013.


Temporal change

Records submitted to Data Centre in 2024

The following map is interactive. If you would prefer to view it full screen then click here.

How can you help

The National Biodiversity Data Centre is trying to improve our knowledge on the distribution of the Long-finned Pilot Whale in Ireland. Should you observe this species, please submit sightings to add to the database. Detailed observations will assist us gaining a better insight into where the species is most abundant in Ireland and we might also be able to detect regional variations. Please submit any sightings and photographs at:

http://records.biodiversityireland.ie/index.php

All records submitted online can be viewed on Google Maps – once checked and validated these will be added to the database and made available for conservation and research.

Further information

For further information contact Dr. Liam Lysaght llysaght@biodiversityireland.ie

References

Publications

DEHLG (2009) Conservation Plan for Cetaceans in Irish waters.

Fossitt, J.A. (2001) A Guide to Habitats in Ireland. The Heritage Council

Harris S., Yalden D.W. (2008). Mammals of the British Isles :Handbook, 4th Edition. The Mammal Society.

Species account by IUCN SSC Cetacean Specialist Group; regional assessment by European Mammal Assessment team 2007. Globicephala melas. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 14 October 2014.

NPWS (2013) The Status of EU Protected Habitats and Species in Ireland.  Species Assessments Volume 3. Version 1.0. Unpublished Report, National Parks & Wildlife Services. Department of Arts, Heritage and the Gaeltacht, Dublin, Ireland.

NPWS (2013a) Delivery Schedule for Actions listed in the Conservation Plan for Cetaceans in Irish waters – June 2013

Taylor, B.L., Baird, R., Barlow, J., Dawson, S.M., Ford, J., Mead, J.G., Notarbartolo di Sciara, G., Wade, P. & Pitman, R.L. 2008. Globicephala melas. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 14 October 2014.

Wall, D., Murray, C., O’Brien, J., Kavanagh, L., Wilson, C., Ryan, C., Glanville, B., Williams, D., Enlander, I., O’Connor, I., McGrath, D., Whooley, P. & Berrow, S. (2013). Atlas of the Distribution and Relative Abundance of Marine Mammals in Irish Offshore Waters: 2005 – 2011. Irish Whale and Dolphin Group, Kilrush, Co. Clare.










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