AbstractSurvival in captivity was calculated for 1,707 bottlenose dolphins (BD), 72 killer whales (KW), 73 white whales (WW), 3,090 California sea lions (CSL), and 47 Steller sea lions (SSL) based on data in the Marine Mammal Inventory Report (MMIR) of the NMFS. Mean annual survival rates (ASRs) between 1988 and 1992 were 0.951, 0.937, and 0.954 for BD, KW, and WW, respectively, and 0.952 and 0.969 for CSL and SSL, respectively. These estimates represent significant increases in survival for both BD and CSL over the last 5 yr. Using all of the MMIR data (1940–1992), the ASR of BD calves (<1 yr of age) was significantly less than the ASR of non‐calves (0.666vs.948, 0.001). Similarly, the ASR of CSL pups (<1 yr of age) was significantly less than survival of non‐pups (0.858vs.962, 0.001). Survival of captive‐born CSL was significantly higher than those born in the wild (0.962vs.945, 0.003), but the difference was not significantly different for BD (0.948vs.944, 0.60). For non‐calf BD and KW, captive animals survived at a slightly lower rate (BD 0.944vs.961, = 0.07; KW 0.938vs.976, 0,001) than animals in the wild (BD: Wells and Scott 1990, KW: Olesiuk 1990). Survival of captive non‐pup SSL was slightly higher (0.968vs.930) than animals in the wild (York 1994, life‐table analyses). Survival rates were significantly different among institutions for BD calves and non‐calves, CSL pups and non‐pups,
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