. Bulletin - Southern California Academy of Sciences. Science. LONGEVITY OF GIANT SEA BASS 11 140 120 100 80 60 40 20 0 -20 -40 -60 -80 â 100 120 © Giant sea bass (n = 2) - YeUoweye rockfish (revised) ⢠Pacific halibut X White abalone (pre-bomb) o Cowcod (pre-bomb) Mean abalone & cowcod A White abalone (Post-bomb) â â¢Â°" â â Regional DIC (Seasonal) â¡ Regional DIC P D. 1930 1940 1950 I960 Year of formation 1970 [980 1990 Fig. 6. Plot of two measured giant sea bass A''^C values from an otolith core estimated as 62 years old (birth year 1948). relative to changes in radiocarbon (A'&q
. Bulletin - Southern California Academy of Sciences. Science. LONGEVITY OF GIANT SEA BASS 11 140 120 100 80 60 40 20 0 -20 -40 -60 -80 â 100 120 © Giant sea bass (n = 2) - YeUoweye rockfish (revised) ⢠Pacific halibut X White abalone (pre-bomb) o Cowcod (pre-bomb) Mean abalone & cowcod A White abalone (Post-bomb) â â¢Â°" â â Regional DIC (Seasonal) â¡ Regional DIC P D. 1930 1940 1950 I960 Year of formation 1970 [980 1990 Fig. 6. Plot of two measured giant sea bass A''^C values from an otolith core estimated as 62 years old (birth year 1948). relative to changes in radiocarbon (A'"^C) from atmospheric testing of nuclear bombs over time as recorded by various A^"*C reference records. Yelloweye rockfish (Kerr et al. 2004) and Pacific halibut (Piner and Wischniowski 2004) otoliths provide the nearest comprehensive reference chronology from the GOA. Pre-bomb A^'^C values from white abalone shell and cowcod rockfish otoliths in the SCB provide a regional A^'^C context. The revised yelloweye A'"^C record ( Andrews, unpubhshed data) and the Pacific Halibut record provide a time-specific reference for the common rise in A^'^C in the northern Pacific Ocean ( â 1958-59). Mean A^"^C from white abalone and cowcod rockfish. with a calculated 2 SD upper limit, provide a basis for classifying the measured A^"^C values as pre-bomb (earlier than â1958-59) using otolith core material of the massive giant sea bass specimen. A loess curve fitted to the yelloweye rockfish A'^^C data (with 95% CI) provides a centralized graphical distribution for these data. Other A'"^C reference records from DIC measurements within the SCB and off central CaHfornia provide regional references for the post-bomb behavior of A'"^C (Linick 1978. Druffel and Williams 1991. Williams et al. 1991). reported age estimates on the order of 60 to 70 years were similar to our findings. Bomb radiocarbon dating produced a minimum estimate of approximate
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