Originally posted at 9:20 a.m. May 18, 2014. Edited to add new details.
Thousands of dead fish mysteriously rose to the surface at a section of Marina Del Rey near Ballona Creek, according to the Los Angeles County Sheriff's Department.
The fish, which included anchovies, rays and other species, came to surface at Basin A of the marina, which is near Bora Bora Way, according to a deputy at the sheriff's Marina del Rey station. The deputy said it "probably had something to with the ecosystem."
Marine biologist Benjamin Kay told ABC7 that recent hot weather probably caused a lack of dissolved oxygen in the harbor waters.
"This is a classic harbor event," he told the station.
The fish likely "suffocated," Marine Animal Rescue Director Peter Wallerstein told NBC 4, which reported that neighbors starting making calls to the sheriff's station at about 7 p.m. on Saturday.
Seagulls and sea lions were making a feast of the the kill and at least one fisherman gathered some of the dead creatures to use as bait.
A watch commander at the sheriff's Marina del Rey station said the state Department of Fish and Wildlife was called in to help remove the dead fish.
A representative from the department said she was researching the event but had no immediate comment.
Similar kills have occurred in King Harbor in Redondo Beach and Ventura Harbor in Ventura. In those cases, the fish were used as fertilizer.
--City News Service