Estimation of mortality coefficients and survivorship curves for minke whales (Balaenoptera acutorostrata) in Korean waters

Figures & data

Figure 1.  Bycaught sites (circles) of minke whales in Korean waters. The survey block (thick line) depicts the sighting and bycatch survey area.

Figure 2.  Age distribution of bycaught minke whales in Korean waters in 2006.

Figure 3.  Survivorship curve for minke whales in Korean waters.

Figure 4.  The q _t curve for minke whales in Korean waters.

Figure 5.  Original survivorship curve and revised survivorship curve using the q _t for minke whales in Korean waters.

Table 1. Estimated survival rates of several cetaceans.

Age class	Species	Survival rate	Method	Reference
	Minke whale	0.865	Age data (catch)	Ohsumi (1979)
	Minke whale	0.878	Age data (catch)	Chapman (1983)
	Blue whale	0.850	Photo-identification data	Calambokidis and Barlow (2004)
	Humpback whale	0.951	Photo-identification data	Buckland (1990)
	Humpback whale	0.960	Photo-identification data	Calambokidis and Barlow (2004)
Adult	Humpback whale	0.960	Photo-identification data	Barlow and Clapham (1997)
	Sperm whale	0.905	Age data (stranding)	Evans and Hindell (2004)
	Killer whale	0.961	Photo-identification data	Krahn et al. (2002)
	Killer whale	0.976	Photo-identification data	Olesiuk et al. (1990)
	Long-finned pilot whale	0.976	Photo-identification data	Verborgh (2005)
	Bottlenose dolphin	0.920	Photo-identification data	Hersh et al. (1990)
	Bottlenose dolphin	0.961	Photo-identification data	Wells and Scott (1990)
	Humpback whale	0.759	Photo-identification data	Gabriele et al. (2001)
	Bottlenose dolphin	0.800	Photo-identification data	Haase and Schneide (2001)
1 year	Bottlenose dolphin	0.830	Photo-identification data	Wells and Scott (1990)
	Indo-Pacific bottlenose dolphin	0.770	Photo-identification data	Mann et al. (2000)
	Indo-Pacific bottlenose dolphin	0.867	Photo-identification data	Kogi et al. (2004)
	Atlantic spotted dolphin	0.760	Photo-identification data	Herzing (1997)
Juvenile	Minke whale	0.905	Age data (bycatch)	This study

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