A record high number of fall-run Chinook salmon have returned to the California’s Mokelumne River to date, while an alarmingly low number of Chinooks have come back to the Upper Sacramento River’s Coleman National Fish Hatchery on Battle Creek. A total of 34,740 fish have gone over the Woodbridge Diversion Dam on the Mokelumne near Lodi through Dec. 13, according to Michelle Workman, Fisheries and Wildlife Manager for the East Bay Municipal Utility District (EBMUD). 25,429 of those fish were adults, while 9,303 were grilse (male/female 2 year olds). Those numbers don’t add up to the total because a handful of early fish could not be sorted by male/female.  The previous salmon record was set last year when the total run size was 28,865, said Workman. … Meanwhile, at the Coleman National Fishery on Battle Creek, a tributary of the Sacramento River below Redding, a low return of adults to Battle Creek has resulted in only 5.5 million eggs being collected this fall.