La Jolla Cove Microbial Diversity Project
$2,576 raised
73% of $3.5k goal
31 contributors
77 Weeks running
Help citizen scientists use genomic sequencing to explore the microbial ecology of La Jolla Cove, an iconic swimming beach where humans, wildlife, and the physical environment interact in complex ways.

La Jolla Cove Microbial Diversity Project

A citizen science study by the SD Wet Lab


Attention all beach lovers! Have you ever wondered what bacteria you are swimming with?

You can help citizen scientists survey the microbial ecosystem of La Jolla Cove, an iconic swimming beach in Southern California, where humans, wildlife, and the physical environment interact in complex ways.

Who we are

The Wet Lab is San Diego’s DIYBio community of professional and citizen scientists brought together by our interest in using biology and biotechnology to benefit society. We collaborate on research projects and offer public education activities through the La Jolla/Riford Library.

This project is organized by Callen Hyland, PhD in molecular and cellular biology, a La Jolla resident currently working as a consultant in the biotech industry.


The Project

La Jolla Cove is an iconic swimming beach popular with tourists and locals. Known for its abundant marine mammals, sea birds, and fish, and neighboring a busy urban area, the Cove is a microcosm for the complex interactions between humans and wildlife. Although La Jolla’s marine wildlife is famous, there is still much to be learned about the micro-organisms that populate the water. San Diego County routinely tests the water for a small number of bacterial taxa that are associated with sewage pollution and posts advisories and beach closures when the levels exceed health standards. More information on the program can be found here:

These methods are, however, just scratching the surface since ocean water is a complex ecosystem with potentially millions of microbial taxa performing diverse functions. Cutting-edge genomic sequencing technologies give us a way to survey every species in the water. We propose to sample water from the Cove and nearby swimming beaches, extract DNA, and use sequencing to understand how the unique biological environment, including the presence of humans and marine mammals, affects the ecosystem.

All data collected during this project will be made available through public databases and peer reviewed open access publication. The La Jolla/Riford Library will serve as a venue for public education about the methods and results of this study. Stay tuned for opportunities to learn about and participate and in this project locally.


Where your money goes

Funds raised from this campaign will pay for sample processing and sequencing. This includes sample storage, genomic DNA extraction from bacteria on filters, amplification of the target region, and sequencing of all amplicons in the sample. We will be using the 16S rRNA gene, a sequence used extensively to classify prokaryotes. The total scope of the project will depend on the amount raised. More donations = more samples = more data! 


Samples will be collected at three locations: La Jolla Cove, Casa Beach, and La Jolla Shores. These three beaches are within walking distance of each other, yet differences in animal populations and human activity are apparent to even a casual observer. Sampling will take place over a period of six months to capture variation in microbial diversity during seasonal temperature transitions. Since many micro-organisms in the environment are not culturable in the lab, we will extract total genomic DNA from micro-organisms collected by passing seawater through 0.2 μm filters. Genomic sequences will be used to catalogue the micro-organisms at each location throughout the six month sampling period. Relevant physical parameters such as temperature, turbidity, surf height, and tides will be measured or recorded from public databases to establish correlations between physical variables and changes in microbial community. As the project develops, details of the methods and regular updates on the status of the project will be posted here:

Purchases of equipment for the initial sample collection is being generously funded by the Friends of the La Jolla Library.

(photo credit: Dr. Carmen Gupta)

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