Habitats: Freshwater, Bay, Marine

As the region’s name implies, water is a defining feature of the Bay Area. The largest Pacific estuary in the Americas — the San Francisco Bay — is the foundation for one of California’s most important ecological habitats and a link to the Pacific flyway. Meanwhile, the Pacific coastline connects the region to the global marine environment, bringing about a set of vulnerabilities and advantages apparent in a complex world.

‘Unprecedented’ Toxin Spread That Delayed Crab Season Shines Light on Mysterious Algae

November 11, 2015 by Graelyn Brashear

Marine ecologists have long been alarmed at the potentially dangerous summertime growth of the single-celled algae Pseudo-nitzschia -- but there are still significant blind spots in our knowledge and research funding has been scarce.


The Guadalupe River Needs Rain

October 30, 2015 by Destiny Palacios

For the last few months, the Guadalupe River, the major river of the 10th largest city in the United States, has been essentially out of water.

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Ask the Naturalist: Sea Foam – How Much is Too Much?

October 22, 2015 by Bay Nature Staff

How much sea foam along the shore is normal for this time of year? And how can you tell if it's harmful to marine life? We asked UC Santa Cruz oceanographer Raphael Kudela.

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At Mountain Lake, One Last Chance to See the Turtles Off

October 14, 2015 by Lauren McNulty

“This turtle release is symbolic of so much transformation."

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Ask the Naturalist: Seabird Feeding Frenzy at Point Montara

September 25, 2015 by Alvaro Jaramillo

Why are large numbers of seabirds congregating off Point Montara?

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After Decades Away, Western Pond Turtles Come Home to Mountain Lake

July 28, 2015 by Lauren McNulty

Biologists released western pond turtles into Mountain Lake, marking another big step in the San Francisco lake's comeback.

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Tomales Bay Revival: The Ripple Effects of Restoration

June 21, 2015 by John Kelly and Jules Evens

When the "heart of the estuary" was restored in 2008, scientists expected to see wildlife return. But Tomales Bay's remarkable renewal in just seven years has exceeded expectations.


A Pretty Pink Nudibranch Moves North, and It’s a ‘Canary in the Tidepool’ for Climate Change

May 10, 2015 by Kaitlyn Kraybill-Voth

At low tide on the North Coast right now, the tidepools teem with Hopkins' rose nudibranchs. “This is not normal business as usual," says scientist Terry Gosliner.


Shaping Ocean Plastic into Awareness

April 23, 2015 by Paul Epstein

Engaging kids in art is second nature to renowned environmental artist and mom Lee Lee, whose collaborative art tiles project, DEBRIS, sprung out of her concern for her newborn son Thatcher's future in a world overrun by single-use plastics.

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San Francisco Bay: The Ocean’s Watershed

April 06, 2015 by Chelsea Leu

When it comes to the water in the San Francisco Bay, the ocean doesn’t get nearly the credit it deserves. A UC Davis researcher and self-described "ocean evangelist" is trying to change that.