Protecting and Restoring the Morro Bay Estuary.
pikeminnow

Chorro Creek: home to steelhead and voracious non-native pikeminnow

Sacramento pikeminnow are a non-native voracious predator found in Chorro Creek. This pikeminnow is an adult that is about 20 inches long.

  Guest post by Ken Jarrett, Fisheries Biologist Ken Jarrett’s interest in fisheries biology began at an early age while fishing in the Sierras, the Central Valley, and in San Francisco Bay. He began his career in Alaska and has slowly worked his way south to California’s Central Coast. Although Ken works with many fish species, steelhead have captured his heart. He is currently working in several Central Coast watersheds including the Salinas River, Santa Rosa Creek, San Luis Obispo Creek, and Chorro Creek. In his spare time, you can find Ken playing with his two daughters or fishing for …

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FIELD UPDATES SEPTEMBER 2018: Fish Surveys, Fish Habitat, and Sharing What We’ve Learned

We observed this juvenile steelhead trout during a fish survey on Chorro Creek.

    Fulfilling our mission to protect and restore the Morro Bay estuary for people and wildlife requires a lot of hard work in the field. At the Estuary Program, that often entails doing research, restoration, and monitoring work out on the estuary and along the creeks that feed into it. Read on to see what we’ve been up to during the past month. Fish surveys Our field highlight for September was heading out with Stillwater Sciences and volunteers to complete fish surveys in Chorro Creek. We conducted fish sampling, a process of catching, identifying, measuring, and releasing fish, that …

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Field Updates September 2017: Pikeminnow and Eelgrass

Collected seeds are held in mesh bags in the estuary until they mature. Mature seeds will have a hard, longitudinally ribbed coat and can vary in color, including olive, dark brown and black.

    Protecting and restoring the bay and estuary takes a lot of boots on the ground. See what our volunteers and field staff have been working on during the past month. Pikeminnow Management Chorro Creek used to be home to a healthy population of steelhead trout (Oncorhynchus mykiss), however their numbers have declined. While there are multiple factors that contribute to this, a fish called the Sacramento pikeminnow (Ptychocheilus grandis) put pressure on steelhead. Pikeminnow eat juvenile steelhead and compete with steelhead for food and habitat. While native to other parts of California, pikeminnow are not native to the Morro …

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