Absolute and relative abundance estimates of Australian east coast humpback whales (Megaptera novaeangliae)

Noad, M. J., Dunlop, R. A., Paton, D. and Cato, D. H. (2011) Absolute and relative abundance estimates of Australian east coast humpback whales (Megaptera novaeangliae). Journal of Cetacean Research and Management, Special Issue 3: 243-252.

Author Noad, M. J.
Dunlop, R. A.
Paton, D.
Cato, D. H.
Title Absolute and relative abundance estimates of Australian east coast humpback whales (Megaptera novaeangliae)
Formatted title
Absolute and relative abundance estimates of Australian east coast humpback whales (Megaptera novaeangliae)
Journal name Journal of Cetacean Research and Management   Check publisher's open access policy
ISSN 1561-0713
Publication date 2011-01-01
Year available 2011
Sub-type Article (original research)
Open Access Status Not yet assessed
Issue Special Issue 3
Start page 243
End page 252
Total pages 10
Place of publication Impington, Cambs, United Kingdom
Publisher International Whaling Commission
Language eng
Abstract The humpback whales that migrate along the east coast of Australia were hunted to near-extinction in the 1950s and early 1960s. Two independent series of land-based surveys conducted over the last 25 years during the whales’ northward migration along the Australian coastline have demonstrated a rapid increase in the size of the population. In 2004 we conducted a survey of the migratory population as a continuation of these series of surveys. Two methods of data analysis were used in line with the previous surveys, both for calculation of absolute and relative abundance. We consider the best estimates for 2004 to be 7,090 ± 660 (95% CI) whales with an annual rate of increase of 10.6 ± 0.5% (95% CI) for 1987 – 2004. The rate of increase agrees with those previously obtained for this population and demonstrates the continuation of a strong post-exploitation recovery. While there are still some uncertainties concerning the absolute abundance estimate and structure of this population, the rate of annual increase should be independent of these and highly robust.
Keyword Abundance estimate
Humpback whales
Migration
Survey-shore-based
Trends
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Veterinary Science Publications
 
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Created: Mon, 15 Apr 2013, 16:35:26 EST by Dr Michael Noad on behalf of School of Veterinary Science