Protecting and Restoring the Morro Bay Estuary.
cal poly

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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Field Updates July 2017

George and Estuary Program volunteer, Nick, finish planting eelgrass shoots within a one-meter squared plot.

    Estuary Program staff and volunteers were hard at work in the field this past month. Fieldwork in July focused on preparing for a second round of eelgrass restoration. As you may recall, we collaborated with CalPoly on a similar effort in March, 2017. This effort was conducted earlier in the year than in past efforts in hopes that the eelgrass would become established before large macroalgae blooms, which typically occur during the summer here in Morro Bay. After four months, we were seeing growth and expansion of eelgrass at our forebay plot (or, eelgrass had expanded outside of …

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Eelgrass Restoration in Morro Bay Spring 2017

    Greetings, readers! This is Catie, the Morro Bay National Estuary Program’s Communications and Outreach Intern. I had the privilege of participating in the Estuary Program’s most recent small-scale experimental eelgrass restoration effort. We want to fill you in on the process here. Eelgrass (Zostera marina) plays a number of important roles in the function and health of the Morro Bay ecosystem.   Its long blades form an underwater forest, which provides a diverse crowd of creatures a place to rest, find food, and spawn. These are some of the creatures that we found during the replanting effort: The …

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