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We protect and conserve whales, dolphins, porpoises, and their habitats
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May Speaker — Andrew Loyd Smith: "Charismatic Cetaceans and Anthropology of the Sea"
May Speaker — Andrew Loyd Smith: "Charismatic Cetaceans and Anthropology of the Sea"
On April 5th, 2026, members of the ACS SF Bay chapter gathered in Monterey for a whale watch led by marine biologist and Monterey Bay Whale Watch owner, Nancy Black. What a wondrous four hours we had – treated to cetaceans not commonly seen in the numbers we witnessed. For many of us, the encounter
April Speaker Series — Dr. Vanessa Pirotta: “Sydney to San Francisco: A parallel journey along the humpback highway for whale conservation”
April Speaker Series — Dr. Vanessa Pirotta: “Sydney to San Francisco: A parallel journey along the humpback highway for whale conservation”
San Francisco and Sydney, Australia are both beautiful “cities by the Bay” and gateways to the Pacific Ocean. What do we have in common when it comes to supporting, protecting, and educating on the marine mammals and wildlife who live and frequent the Bay and surrounding waters? Please join us as we
Community Whale Watching with Monterey Bay Whale Watch
Community Whale Watching with Monterey Bay Whale Watch
Monterey Bay Whale Watch Partners with American Cetacean Society San Francisco Chapter for a Special Member Tour We are thrilled to announce a special whale watching tour in partnership with the American Cetacean Society San Francisco Chapter (ACS SF) one of the most dedicated cetacean…
American Cetacean Society - San Francisco Bay Chapter — Second Annual Silent Auction By American Cetacean Society San Francisco Bay Chapter
American Cetacean Society - San Francisco Bay Chapter — Second Annual Silent Auction By American Cetacean Society San Francisco Bay Chapter
Support the American Cetacean Society San Francisco Bay Chapter by bidding on two limited-edition canvas prints by Orange Orca Art, inspired by real Southern Resident killer whale families and the soundscapes that shape their lives Bid Now
March VIDEO: Nancy Black, "Endless Learning and Wonder - 40 Years Observing Killer Whales"
March VIDEO: Nancy Black, "Endless Learning and Wonder - 40 Years Observing Killer Whales"
Please join us as we hear from marine biologist and killer whale expert Nancy Black. Nancy started Monterey Bay Whale Watch 34 years ago guaranteeing her regular on-the-seas observations and study of marine life in what is known as the "Serengeti of the Oceans". She has been photo
American Cetacean Society - San Francisco Bay Chapter — Dr. Roxanne Beltran, "Unraveling individual and environmental drivers of variation among elephant seals"
American Cetacean Society - San Francisco Bay Chapter — Dr. Roxanne Beltran, "Unraveling individual and environmental drivers of variation among elephant seals"
Environmental variation across temporal and spatial scales shapes individual differences in traits and causes resource acquisition and allocation to fluctuate dramatically. Spotlighting northern elephant seals as a model system, Roxanne and research technician Conner Hale will disc
January VIDEO: Steven Swartz: Gray Whale News and Views - 2026 Update
January VIDEO: Steven Swartz: Gray Whale News and Views - 2026 Update
Research Grant Application
Research Grant Application
November Event Video — Tom Jefferson: "Flashing red lights amidst a black and white porpoise: Dall's porpoise declines along the west coast of North America"
November Event Video — Tom Jefferson: "Flashing red lights amidst a black and white porpoise: Dall's porpoise declines along the west coast of North America"
Dall’s porpoise is a cetacean you won’t forget if you’ve ever seen one or a group of them – they are powerful fast swimmers that rip so rapidly across the surface they create a characteristic spray known as a “rooster tail” – a thrilling display. Recently there has been concern about the apparent de
In Person Event Nov 22
In Person Event Nov 22
Come join us for a whale of a good time at The Marine Mammal Center! Our annual social event is back and better than ever. Meet fellow cetacean enthusiasts, learn about the latest marine mammal research, and enjoy a fun-filled day celebrating these amazing creatures. Don’t miss out on this fin-tasti
Oct Event VIDEO - Jodi Frediani: Southeast Alaska - The Splendor and Magic of the Inside Passage
Oct Event VIDEO - Jodi Frediani: Southeast Alaska - The Splendor and Magic of the Inside Passage
As photographer-extraordinaire, Jodi Frediani leads us on a trip through the Inside Passage. We'll meet lunge feeding humpback whales, black and brown bears, eagles, lots of other critters and take in this majestic landscape. Along the way, Jodi will share her collaboration with researchers, film cr
Sep Event Video — Ted Cheeseman Our Humpback Whales: Locals… but not locals only
Sep Event Video — Ted Cheeseman Our Humpback Whales: Locals… but not locals only
California humpback whales are seasonal migrants between here and mostly Mexico and Central America, a simple general pattern, but when we look deeper the patterns are complex and persistent across huge population changes. Join us for an exploration of new technology enabling a deep dive into the li
August Event Video: Maria Brown "Why Are National Marine Sanctuaries Important to Our Nation?"
August Event Video: Maria Brown "Why Are National Marine Sanctuaries Important to Our Nation?"
ACS June Event VIDEO - Jessie Meyer, 32 Years of Observing North Pacific Blue Whales – what their body conditions tell us…
ACS June Event VIDEO - Jessie Meyer, 32 Years of Observing North Pacific Blue Whales – what their body conditions tell us…
MAY EVENT VIDEO IS LIVE! American Cetacean Society - San Francisco Bay Chapter — "Gray Whale Tales: Insights Into a Recent Unusual Mortality Event"
MAY EVENT VIDEO IS LIVE! American Cetacean Society - San Francisco Bay Chapter — "Gray Whale Tales: Insights Into a Recent Unusual Mortality Event"
Ocean Safaris in Monterey Bay - Ocean Safaris
Ocean Safaris in Monterey Bay - Ocean Safaris
The Ocean Safari in Monterey Bay tour offers the best whale watching and wildlife watching, emphasizing intimate experiences.
Video is AVAILABLE NOW! April Monthly Speaker Event— Dr. Aylin Akkaya & Ekaterina Kalashnikova "Going the Distance - One Humpback's Journey of Migration"
Video is AVAILABLE NOW! April Monthly Speaker Event— Dr. Aylin Akkaya & Ekaterina Kalashnikova "Going the Distance - One Humpback's Journey of Migration"
VIDEO - American Cetacean Society - San Francisco Bay Chapter — Marc Webber, "Baja in Spring – An Extravaganza of Marine Life"
VIDEO - American Cetacean Society - San Francisco Bay Chapter — Marc Webber, "Baja in Spring – An Extravaganza of Marine Life"
Join us as Marc shares his knowledge and photos from what truly is an extravaganza and celebration of marine life. We will be at sea on the boat – virtually – as we visit birthing sites of gray whales and witness the season’s burst of life with blue whales, humpbacks, dolphins, seabirds and pinniped
American Cetacean Society - San Francisco Bay Chapter — Silent Auction - Art by Firuze Gokce - We are raising funds for our Research Grant Program
American Cetacean Society - San Francisco Bay Chapter — Silent Auction - Art by Firuze Gokce - We are raising funds for our Research Grant Program
Join the American Cetacean Society and artist Firuze Gokce for a special Silent Auction dedicated to protecting whales, dolphins, and marine ecosystems. This event will raise crucial funds for ACS Research Grant Programs , supporting groundbreaking cetacean conservation and marine science stu
February Talk — Dr. Joëlle De Weerdt, "Nicaragua Humpback Whales - What Do We Know About Them?"
February Talk — Dr. Joëlle De Weerdt, "Nicaragua Humpback Whales - What Do We Know About Them?"
Formal research on Nicaragua humpback whales has been ongoing since 2016 uncovering intriguing information and discoveries for this important breeding area. Join us as Joëlle De Weerdt presents the latest research advancements drawing from the results of her PhD thesis as well as giving us new, exci
American Cetacean Society Jan 25 Talk - San Francisco Bay Chapter — “Monterey Bay National Marine Sanctuary - Discoveries and Surprises”
American Cetacean Society Jan 25 Talk - San Francisco Bay Chapter — “Monterey Bay National Marine Sanctuary - Discoveries and Surprises”
American Cetacean Society - San Francisco Bay Chapter — American Cetacean Society - San Francisco Bay – Membership
American Cetacean Society - San Francisco Bay Chapter — American Cetacean Society - San Francisco Bay – Membership
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Official Merchandise
American Cetacean Society - San Francisco Bay Chapter — Jessica Crance: "Right in your backyard: The plight of the North Pacific right whale"
American Cetacean Society - San Francisco Bay Chapter — Jessica Crance: "Right in your backyard: The plight of the North Pacific right whale"
American Cetacean Society - San Francisco Bay Chapter — Research Grant Application
American Cetacean Society - San Francisco Bay Chapter — Research Grant Application
Watch the VIDEO — Grant Donations at Work! Grantee Dr. Nico Ransome on her study of a threatened “distinct population segment” of humpback whales spanning Central and North America
Watch the VIDEO — Grant Donations at Work! Grantee Dr. Nico Ransome on her study of a threatened “distinct population segment” of humpback whales spanning Central and North America
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