description Ocean Sun (L25) Overview
The Ocean Sun (L25) was a critically important member of the Southern Resident killer whale population. This individual is notable for being one of the oldest known orcas, with estimates suggesting she lived over ninety years. Researchers tracked her movements and behavior, contributing valuable data to understanding the long-term health and survival challenges facing this endangered group. Her story highlights the unique lifespan and ecological role of these whales, primarily benefiting scientists studying wild whale populations and conservation efforts.
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Ocean Sun (L25) ranks #4 of 82 in the Whale ranking, behind Tahlequah (J35), ahead of Varvara.
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What ecotype of killer whale was Ocean Sun (L25)?
Ocean Sun (L25) was a Southern Resident killer whale, a distinct, fish-eating ecotype that inhabits the coastal waters of the Pacific Northwest. Unlike transient orcas, Southern Residents rely exclusively on Chinook salmon for their diet.
How was Ocean Sun (L25) tracked by researchers over the years?
Researchers from the Center for Whale Research tracked L25 through decades of photographic identification using her unique dorsal fin markings and saddle patch. Her birth year was estimated to be around 1928 based on her family structure at the start of the study.
Was Ocean Sun (L25) the oldest killer whale in the world?
L25 was widely considered the oldest known orca in the world, with estimates placing her age well over 90 years old when she was last seen. The average lifespan for a wild female orca is generally around 50 to 80 years.
Who was Ocean Sun's most famous offspring?
Ocean Sun was the mother of several calves, but her most famous offspring was likely her son Mega (L41), a well-known mature male in the L pod. The Southern Residents are categorized into three main pods: J, K, and L.
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