Cabrillo Marine Aquarium

Featured Event

Discovery Lecture Series
7 p.m. Friday, October 3, 2014

Tides of Change: Past trends in rocky intertidal communities and prospects for the future
By Dr. Richard F. Ambrose

Organisms living in rocky intertidal habitats are challenged by the unique stresses of being alternately exposed to air and submerged under water. They are also among the most accessible marine organisms, with some areas hosting tens of thousands of visitors each year. As a result, many rocky intertidal communities have been affected by human activities such as harvesting, trampling and pollution.

Anecdotal information suggests great changes in rocky intertidal communities since the 1950s, but there is little quantitative information before the 1970s. The Multi-Agency Rocky Intertidal Network (MARINe), established in the early 1990s to foster a comprehensive, long-term assessment of rocky intertidal communities, has compiled the most extensive information ever assembled on the status and trends in rocky intertidal communities along the West Coast of the United States. MARINe has documented dramatic declines in some species, including the spread of withering foot syndrome in black abalone and the recent catastrophic collapse of seastar populations along the West Coast, as well as less obvious declines, such as the widespread reduction in rockweed cover in California.

Long-term monitoring has helped us understand natural fluctuations of rocky intertidal organisms, and this information helps us detect the impacts of human activities such as oil spills against the background natural variability. We will continue monitoring rocky intertidal communities to document changes in response to future climate change, including sea level rise, changes in storm frequency, and ocean acidification.

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Upcoming Events

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SEA Club - Science Education Afternoons Grades 3-6  Arrow
On four consecutive Wednesday afternoons join CMA Educators for a series of hands-on after-school marine science adventures. Students observe animal behavior; examine rocky shore animals at the...

Member Price: $27, Non-Member Price: $30

Wednesday, October 01, 2014 - Wednesday, October 22, 2014
Wednesdays only  • 3:30 PM - 5:30 PM


Educators Open House  Arrow
Wear your Hawaiian shirts and flip-flops and join us for a back-to-school luau at Cabrillo Marine Aquarium! Come and experience our wide variety of free and fee-based school programs. Learn how the...

Thursday, October 02, 2014 • 5:00 PM - 7:00 PM


Discovery Lecture Series
presented by AltaSea and Cabrillo Marine Aquarium
Tides of Change: Past trends in rocky intertidal communities and prospects for the future
By Dr. Richard F. Ambrose

Friday, October 03, 2014 • 7:00 PM - 9:00 PM


Native Garden Workday / Beach Cleanup  Arrow
On the first Saturday of each month, join CMA Educators and volunteers in maintaining the Cabrillo Native Garden and learn more about its plant and animal inhabitants. Also join other volunteers in a...

Saturday, October 04, 2014 • 8:00 AM - 10:00 AM


Whalewatch Naturalist Training  Arrow
Volunteers (college age and up) are trained as naturalists to narrate whale watching trips on boats that depart from local landings December 26 through March observing gray whales, dolphins, seal...

Tuesday, October 07, 2014
Tuesdays only  • 7:00 PM - 9:00 PM


Sea Ranger Training  Arrow
Sea Rangers is a volunteer naturalist program. We are looking for people who enjoy spending time outside, care about the environment and are interested in educating others about our coastline. Fifth...

Member Price: $30, Non-Member Price: $30

Thursday, October 09, 2014 - Thursday, November 06, 2014
Thursdays only  • 4:00 PM - 6:00 PM