The Amigos de Bolsa Chica's priority is to protect our community, and that includes all of our volunteers, members, visitors and loved ones.

While the parking lots at both the Bolsa Chica Ecological Reserve and the State Beach have been reopened, the Last Saturday of the Month Bird Walk/Trash Cleanup, the First Saturday of the Month Tours, and FLOW Fridays remain cancelled until further notice.

Please check back here frequently for updates on when we will be allowed to use the State Beach Visitors Center and when public gatherings are deemed safe for our volunteers and all participants in our education outreach efforts. Moving forward, we will also be following a strict regimen in order to maintain a clean and safe environment for learning and exploration.

Thank you for your understanding, and we look forward to seeing you once we resume. If you have questions or concerns, please feel free to contact us:

Let us know if you have any questions or concerns, or

Volunteer with FLOW & Become a Citizen Scientist!

What is FLOW?

FLOW (Follow and Learn about the Ocean and Wetlands) is Amigos de Bolsa Chica’s Citizen Science Program. This is an exciting opportunity for members of the community to learn more about coastal ecology, to participate in the collection of scientific data and to get involved in environmental quality monitoring efforts. Training is ongoing every Friday at Bolsa Chica State Beach Visitor Center. Times are dependent upon the tides, so check the FLOW Schedule for specific times and let us know when you plan to participate.

What do FLOW volunteers do?

FLOW volunteers receive extensive and continuous training on how to be a citizen scientist. The Plankton Citizen Science Program consists of weekly plankton collections at specific sampling stations. FLOW volunteers learn how to properly collect water and plankton and how to analyze the samples collected. The methods and practices adopted in this monitoring program follow the standard procedures used for monitoring plankton all over the world. FLOW Citizen Scientists collect plankton samples utilizing plankton nets. They measure and record water quality variables (such as temperature, salinity, nutrients, dissolved oxygen, turbidity, pH) and other environmental data (such as weather and wind conditions and tide height) in support of the analysis of the plankton which is done under the microscope. FLOW Citizen Scientists share their knowledge with middle, high school, and communuty college classes who participate in the FLOW Field Trips during the school year.

How to get involved

We are always excited to welcome new volunteers to FLOW. You don’t need to have any previous experience to become a Citizen Scientist. We will provide you with all the necessary training. We meet every Friday to collect and analyze water samples at Bolsa Chica State Beach. A minimum of 2 shifts (about 4 hours) per month is required. See the FLOW Schedule for specific times. If you would like to join our team of Citizen Scientists, contact us by email at

Questions? Contact FLOW at

Collecting water samples at the tidal inlet

Taking measurements

Analyzing samples at the Visitor Center

What are plankton and phytoplankton?

Plankton are microscopic creatures that live adrift in the world’s ocean, lakes, ponds rivers and wetlands. These plant-like microorganisms are called phytoplankton (pronounced fi-toe-plank-tun) and sometimes also referred to as microalgae. Phytoplankton form the basis of virtually all aquatic food webs on Earth; assist in regulating the climate system by accounting for half of all photosynthetic activity; and cycle elements between species in the ocean. Humans, marine mammals and seabirds can be harmed by toxins produced by a few species of phytoplankton when they accumulate in the food chain. FLOW allows students to increase their awareness of Phytoplankton’s importance, teaches them to identify different species of Phytoplankton, and to examine an array of water quality related topics such as the effects of urban runoff on the watershed and the potential impacts of climate change on the marine food web. Using scientific tools and techniques to gain information, FLOW assists in illustrating the impact human activities have upon the planet.

What are potentially harmful algae?

Most species of phytoplankton are, as explained above, beneficial to other aquatic life and to us, humans. However, about 5% of the approximately 5,000 currently described microalgae species are considered to be harmful, as they generate negative economic, environmental or public health impacts. Harmful processes include high biomass production, which causes physical, chemical and biological alteration of the marine environment, and production of toxins. Toxins produced by microalgae may directly harm the organisms that eat them (for example, bivalve shellfish like mussels, oysters, clams, and scallops, certain fish like anchovies and sardines, and crustaceans like crab and lobster) or bioaccumulate in the trophic chain, causing intoxication and, in extreme cases, death of consumers of contaminated mollusks, crustaceans or fish. Humans, as well as marine mammals and seabirds, can be harmed by these toxins when dangerous levels accumulate in these seafood items. The main toxins produced by microalgae are the saxitoxins and congeners that cause paralytic shellfish poisoning (PSP), the okadaic acid and congeners that cause diarrhetic shellfish poisoning (DSP) and the domoic acid and derivatives that cause amnesic shellfish poisoning (ASP). Worldwide, human deaths due to these toxins are estimated to be around several hundred cases per year, and the number of seabirds, sealions, seals and manatees that die because of harmful phytoplankton is much higher than that. You can read more about harmful phytoplankton by visiting the following websites:

Our Citizen Science Program is part of regional monitoring networks. The California Department of Public Health (CDPH) maintains a Phytoplankton Monitoring Program of which we are already members by collaborating with their efforts to monitor potentially harmful microalgae along the coast of California.

Members of this volunteer-based monitoring program mail samples of plankton and supporting water quality data to their office in Richmond, CA, every week for their analysis. In addition, our volunteers and citizen scientists are trained on basic taxonomic identification of plankton genera and species of interest with the use of optical microscopes, which in turn, allow our volunteers to provide CDPH with immediate information about the presence and abundance of potentially harmful and toxic plankton species in the

You can learn more about CDPH’s Phytoplankton Monitoring Program by visiting their website at:

The Benefits and Rewards of Being a Citizen Scientist in the FLOW Program

If you choose to become a regular FLOW Citizen Scientist and help with visiting classes, your hours are tracked and you become eligible to receive free parking at all State Parks in California (with the exception of Hearst Castle). This is a significant benefit. There are also many rewards in knowing that your contributions instill in participants an understanding of the relationship between the wetlands and the ocean, as well as an awareness of how our actions as a society affect ocean and wetland health. Climate change and human activity are having an unhealthy impact on our oceans and wetlands.  Our goal is to protect these ecosystems by providing students with a direct connection to these ecosystems, expand their knowledge of the Earth's environment, and put the protection of these precious ocean and wetland ecosystems in the hands of members of society.