This presentation was given by Greg Andrew, Marin Municipal Water District, at a meeting of the Statewide Coho Recovery Team, March 1, 2016 Please note that any views given in this presentation do not necessarily represent those of California Department of Fish & Wildlife Salmon Spawning in Lagunitas & Walker Creek MMWD Fisheries Program Gregory Andrew (MMWD) Coho Recovery Team Meeting March 1, 2016 Sacramento, CA BACKGROUND Central California Coast Coho Salmon • Coho salmon within the Central California Coast (CCC) “Evolutionarily Significant Unit,” are genetically similar. Coastal drainages from Punta Gorda (Mendocino County) south to the San Lorenzo River (Santa Cruz County). • Lagunitas Creek coho comprise 10% of the CCC population. Ten Mile River Pudding Creek Lagunitas Creek Big River Navarro River Noyo River Russian River Albion River San Vicente Creek Caspar Creek Usal Creek Redwood Creek (Marin Co) Scott Creek Little River Pine Gulch San Lorenzo River Garcia River Pescadero Creek 10% Gazos Creek Waddell Creek Aptos Creek No Sand Bars into Lagunitas or Walker No sand bar forms at the creek mouth, which is somewhat unique for coastal California streams. This means salmon and steelhead can migrate into or out of the creek without waiting for the creek mouth to be open for passage. Salmon & Steelhead Life Cycle Our surveys track all freshwater life stages SPAWNER SURVEYS Spawning Spawning Surveys Finding fish and redds Surveys Measure redd dimensions(length X width) Surveys Flag & GPS redd locations in the creek POPULATION TRENDS Adult Spawning – Lagunitas Creek DIDSON Coho Trends – Lagunitas Creek 1400 NOAA Recovery Target 1300 1200 Olema Creek 1100 Cheda and Nicasio Creeks 1000 Devil's Gulch 900 San Geronimo Tributaries 800 San Geronimo Creek 700 Lagunitas Creek 600 500 Coho Redds 400 300 Mean 200 100 0 Notes: The NOAA recovery target is 2,600 adults by the year 2120, or 1,300 redds assuming two fish per redd. The current year class is indicated by shadow. Source: Marin Municipal Water District Adult Spawning – Lagunitas Creek Coho Year Class & Life Stage Trends 100,000 Year Class 1 Juvenile Year Class 2 Smolt Year Class 3 Adult 10,000 Recovery Target 2,600 Adults 1,000 100 10 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 Marine Survival Apparent Marine Survival 25% Lagunitas coho Lagunitas + Olema coho Lagunitas steelhead 20% 15% Spawner Survival Spawner - to - 10% Smolt Mean 5% 4.7% 0% 2007-08 2008-09 2009-10 2010-11 2011-12 2012-13 2013-14 2014-15 2015-16 = 2.8% Adult Spawning - Walker Creek Adult Trends - Walker Creek Coho Life Stage Coho Adult Steelhead Adult Years Released Released Redds Coho Redds Steelhead 2003/04 80* Adults 2 80* 11 22 2004/05 87* Adults 4 87* 1 2 2005/06 40* Adults 0 40* 0 0 2006/07 3,400 Smolts 7 14 19 38 2007/08 57* Adults 4 57* 46 92 2008/09 500 Fingerlings 1 2 17 34 2009/10 0 - 2 4 12 24 2010/11 6,500 Fingerlings 0 0 0 0 2011/12 12,000 Fingerlings 0 0 36 72 2012/13 10,000 Fingerlings 1 2 18 36 2013/14 7,000 Fingerlings 6 12 33 66 2014/15 7,600 Fingerlings 10 20 0 ? 2015/16 2,200 Fingerlings 31 62 6 12 * Adult coho in Walker Creek are those released during stocking Adult Spawning - Walker Creek RECOVERY ACTIONS Winter Habitat Enhancement The Goal is for a Greater Number of Larger Smolts to Migrate out to the Ocean CMP Sample Frame Development Thank You Gregory Andrew [email protected] .