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      • Saving the Scalloped Hammerheads of Baja
      • California Marine Protection
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        • Respect for Hawaii Fish- Aquarium Collection
        • ‘Auamakua, Hawaii’s Spiritual Connection to the Shark
        • Support the Papahānaumokuākea National Marine Sanctuary Designation
      • Sharks in the Coral Triangle
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        • Creating a Marine Protected Area in Indonesia
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      • WE DID IT! Saving Endangered Sharks at CITES 2022
      • US Shark Fin Sales Elimination Act Signed into Law
      • SHARKED Act HR 4051 Reintroduced by Anglers
      • Law to End Lethal California Driftnet Fishery Passes
    • Shark Stewards DEI Statement
    • Statement Against Asian and API Hate
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      • Support Pacific Marine Sanctuaries
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    • Tell eBay: Stop Endangered Shark Trade
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Shiver of Great White Sharks spotted off Pacifica, Ocean Beach

October 25, 2018 On Wednesday October 16 an aggregation of approximately 20 sharks were observed by two US Coast Guard helicopter patrols.  The Coast Guard helicopter from Station San Francisco reported to […]

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Posted bySharkstewardsOctober 16, 2015May 30, 2023Tags: Aggregation, great white shark, San Francisco

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  • Holiday Mug Healthy Sharks and Oceans Mug $19.99 Original price was: $19.99.$15.99Current price is: $15.99.
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  • New Study Shows Sharks are at Greater Risk of Extinction Than Previously Believed

    Recent work builds on previous studies that many shark species are in deep decline and their loss can have dire consequences on reefs and marine ecosystems.

  • The Weird, Wild and Nearly Extinct Sawfish

    Currently in the news is an account of unusual spinning behavior and deaths in an Unusual Mortality Event, potentially attributed to a neurological pathogen off the coast of Florida. The …

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  • About
    • Mission and Vision
    • Our Goals and How We Get There
    • Where We Work
      • Saving the Scalloped Hammerheads of Baja
      • California Marine Protection
      • Hawai’i Kahu Manō- Guardians of the Shark
        • Respect for Hawaii Fish- Aquarium Collection
        • ‘Auamakua, Hawaii’s Spiritual Connection to the Shark
        • Support the Papahānaumokuākea National Marine Sanctuary Designation
      • Sharks in the Coral Triangle
        • Indonesia Protecting Sharks and Reefs
        • Creating a Marine Protected Area in Indonesia
    • Our Team
      • Media Kit, David McGuire, Shark Stewards
    • Partners & Donors
    • Victories & Milestones
      • WE DID IT! Saving Endangered Sharks at CITES 2022
      • US Shark Fin Sales Elimination Act Signed into Law
      • SHARKED Act HR 4051 Reintroduced by Anglers
      • Law to End Lethal California Driftnet Fishery Passes
    • Shark Stewards DEI Statement
    • Statement Against Asian and API Hate
  • Our Work
    • Saving Sharks
    • California Marine Protected Area Network
    • Sharktober: Farallon Sanctuary and Wildlife Tours
    • Sustainable Ecotourism and Data Dives
    • Shark ID and MPAs Education Adventure
    • Manta and Shark ID
    • Media Production
  • Science & Education
    • Aquatic Park Stewardship
      • Community Science
        • Citizen Science
    • Shark Watch California
      • Observe and Record Sevengill Sharks
      • Sharks of the San Francisco Bay
    • Inland Ocean Academy
    • Shark Science Sheets
      • CITES Shark Science Sheets
    • Sharks of Hawaii
    • Shark Sanctuary and MPAs
    • White Shark Stewardship
      • How to Avoid a White Shark Attack
      • Sharktober
  • Campaigns
    • Support NOAA and our National Marine Sanctuaries
      • Support Pacific Marine Sanctuaries
    • Urgent Action to Save Oceanic Whitetip Sharks
    • End the Last lethal Net Fishery off California
    • Stop the EU Shark Fin Trade 
    • Tell eBay: Stop Endangered Shark Trade
    • Stop Big Plastic From Polluting Oceans
  • Get Involved
    • Contact Us
    • Shark Buddies- Connect and Protect
    • Adventures
      • Farallon Island Excursion Information
      • Sharktober Sanctuary Tours- Instructions
    • Art For Sharks
    • Help Us Save Sharks
    • Beach Cleanups and Surveys
    • Events
  • Shark News
  • Shop

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2150 Allston Way, Suite 460
Berkeley, CA 94704

Shark Stewards is a project of The Earth Island Institute, an environmentalist think tank founded by David Brower in 1983 and a 501(c)(3) non-profit.

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