Data

Dugong aerial survey (dugongs, cetaceans, turtles) Southern Great Barrier Reef, November-December 1992

James Cook University
Grech, Alana ; Marsh, Helene
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://researchdata.jcu.edu.au//published/05014fe70209a3252e7950b5465aecb2&rft.title=Dugong aerial survey (dugongs, cetaceans, turtles) Southern Great Barrier Reef, November-December 1992&rft.identifier=https://researchdata.jcu.edu.au//published/05014fe70209a3252e7950b5465aecb2&rft.publisher=James Cook University&rft.description=ln November-December 1992, dugongs, sea turtles, and cetaceans were counted from the air at an overall sampling intensity of 10% over a total area of 39,l83 km2 in the inshore waters of the Great Barrier Reef region south of Cape Bedford. This survey was a repeat of the surveys conducted in 1986/87. The minimum population estimate for dugongs for the survey area in November-December 1992 (1,857 ± s.e. 292 dugongs), was significantly different from the estimate for the same region in 1986/7 using the same aerial survey technique (3,479 ± s.e. 459). For turtles, the minimum population estimate in November-December 1992 was 33,291 ± s.e. 5,182 compared with 26,393 ± s.e. 1,515 for the same region in November 1985. All the cetacean sighted were dolphins. Most of the animals appeared to be bottlenose dolphins, Tursiops truncatus, or Indo-Pacific humpback dolphins, Sousa chinensis. The population estimates for November-December 1992 sum to 11,928 ± s.e. 682 dolphins for the whole region compared with 6,743 ± s.e. 542 dolphins in 1986/1987.Sightings for dugongs in the Southern Great Barrier Reef area during the dugong aerials surveys between November and December 1992.&rft.creator=Grech, Alana &rft.creator=Marsh, Helene &rft.date=2012&rft.coverage=145.2665,-15.4167 152.1961,-15.4167 152.1961,-24.5 145.2665,-24.5 145.2665,-15.4167&rft_rights=&rft_subject=marine mammal&rft_subject=abundance&rft_subject=dugong&rft_subject=Dugong dugon&rft_subject=southern great barrier reef&rft_subject=marine turtle&rft_subject=marine biology&rft_subject=cetacean&rft_subject=distribution&rft_subject=aerial survey&rft_subject=Great Barrier Reef&rft_subject=ARC Centre of Excellence for Coral Reef Studies&rft.type=dataset&rft.language=English Access the data
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Brief description

Sightings for dugongs in the Southern Great Barrier Reef area during the dugong aerials surveys between November and December 1992.

Full description

ln November-December 1992, dugongs, sea turtles, and cetaceans were counted from the air at an overall sampling intensity of 10% over a total area of 39,l83 km2 in the inshore waters of the Great Barrier Reef region south of Cape Bedford. This survey was a repeat of the surveys conducted in 1986/87. The minimum population estimate for dugongs for the survey area in November-December 1992 (1,857 ± s.e. 292 dugongs), was significantly different from the estimate for the same region in 1986/7 using the same aerial survey technique (3,479 ± s.e. 459). For turtles, the minimum population estimate in November-December 1992 was 33,291 ± s.e. 5,182 compared with 26,393 ± s.e. 1,515 for the same region in November 1985. All the cetacean sighted were dolphins. Most of the animals appeared to be bottlenose dolphins, Tursiops truncatus, or Indo-Pacific humpback dolphins, Sousa chinensis. The population estimates for November-December 1992 sum to 11,928 ± s.e. 682 dolphins for the whole region compared with 6,743 ± s.e. 542 dolphins in 1986/1987.

Notes

Please contact Helene Marsh [email protected] for GIS data. Funding for these surveys was obtained from the following government agencies: - Great Barrier Reef Marine Park Authority (GBRMPA), - Department of Environment and Resource Management (DERM), - Australian Marine Mammal Centre (AMMC), - Torres Strait Regional Authority (TSRA), - Australian Fisheries Management Authority (AFMA), - Marine and Tropical Sciences Research Facility (MTSRF), - National Environmental Research Program (NERP).

Created: 2012-01-24

Data time period: 11 1992 to 31 12 1992

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145.2665,-15.4167 152.1961,-15.4167 152.1961,-24.5 145.2665,-24.5 145.2665,-15.4167

148.7313,-19.95835

Subjects
ARC Centre of Excellence for Coral Reef Studies | Dugong dugon | Great Barrier Reef | abundance | aerial survey | cetacean | distribution | dugong | marine biology | marine mammal | marine turtle | southern great barrier reef |

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Identifiers
  • Local : researchdata.jcu.edu.au//published/05014fe70209a3252e7950b5465aecb2
  • Local : jcu.edu.au/tdh/collection/125af89b-040c-4915-b63d-75f112ccd514
  • Local : bf82e3ef7862e1b2c653f4f1de8a8bb5
ACN 633 798 857