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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
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      • Community Science
        • Citizen Science
    • Shark Watch California
      • Observe and Record Sevengill Sharks
      • Sharks of the San Francisco Bay
    • Inland Ocean Academy
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      • 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
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Lurking with Leopard Sharks

Shark Watch

Like many people who dive, I love sharks.  I like to dive with sharks, swim with sharks and photograph sharks.  I also commit most of my waking time working to […]

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Posted byDavid McGuireFebruary 10, 2021February 11, 2021Tags: biology, leopard sharks, San Francisco Bay, Shark Watch, sharks

New Study Finds Shark Populations Down 71%

IUCN

San Francisco conservation group calls for immediate cessation of shark and ray fishing.

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Posted byDavid McGuireJanuary 29, 2021April 8, 2025Tags: 77% shark decline, Biodiversity, IUCN, Nature, overfishing, shark fin, sharks

Support the New National Marine Sanctuary in Hawaiian Seas

Pmnm map sanctuary designation 1000

On November 19th,2023 NOAA initiated the process to designate portions of the Papahānaumokuākea Marine National Monument as a national marine sanctuary. This designation would build on existing management by adding conservation benefits, research […]

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Posted byDavid McGuireJanuary 11, 2021May 3, 2024Tags: Coral Reef, fish, marine protection, monk seals, MPA, National marine sanctuary, sharks

Senator Marco Rubio Blocks Shark Protection in Senate

bull shark

Last week, Congress was in the process of including the Shark Fin Sales Elimination Act into the end-of-year legislative package. This bill would have removed the United States from the […]

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Posted byDavid McGuireJanuary 6, 2021February 17, 2021Tags: Marco Rubio, shark fin, Shark fin soup, Shark fin Trade Elimiation Act, shark finning

Save Point Reyes National Seashore

MPA

In the past few months the Trump Administration’s has fast-tracked leases for drilling, logging, mining and grazing on Americans’ public lands. The Point Reyes National Seashore has been under target […]

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Posted byDavid McGuireDecember 28, 2020January 7, 2021Tags: Point Reyes National Seashore

Squalene, Shark Products and Vaccines

Source Wikipedia

WHAT IS SQUALENE? Squalene (or squalane is when it is processed for products) is a natural oil that comes from shark liver. The molecule C30H50 is also found in many […]

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Posted byDavid McGuireDecember 22, 2020March 27, 2024Tags: covid, livering, shark fin, sharks, Sharkwater Extinction, squalene, vaccine

Saving Hammerhead Sharks and Manta Rays

Manta

View this email in your browser LATEST NEWS | CAMPAIGNS | GET INVOLVED  DONATE  Dear Shark Friend, I want to thank you as a core team member for your support keeping Shark Stewards working and […]

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Posted byDavid McGuireDecember 22, 2020March 16, 2021Tags: Hammerhead Shark, manta ray, Newsletter

Why Save Hammerheads and Mantas?

Shark stewards logo

In 2020 Shark Stewards adopted a new logo to represent our focus on protecting endangered sharks in the next decade. This elegant design contributed by South African artist Katerina Sonntagova […]

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Posted byDavid McGuireDecember 16, 2020September 5, 2023Tags: extinction, fundraising, hammerhead, mantas, shark fin, sharks

Saving Sharks in the Coral Triangle

BluHope.org

Shark Stewards joins BluHope in their Big Blue Day online event with the Asian Dive Expo on saving sharks of the coral triangle. Watch this conversation with our conservation partners […]

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Posted byDavid McGuireDecember 14, 2020December 15, 2020Tags: Coral Triangle, indonesia, Malaysia, shark fin, sharks

Shark Stewards: We Embrace DEI

Sharkteam feb

Shark Stewards Diversity, Equity and Inclusivity Statement Shark Stewards is committed to a fair, just and inclusive environment for all our employees, board and volunteer team. We embrace diversity and […]

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Posted byDavid McGuireDecember 14, 2020Tags: DEI

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Products

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  • science book Sharks for Kids: A Junior Scientist's Guide to Great Whites, Hammerheads, and Other Sharks $14.99

Act Now

  • End the Hawai’i Aquarium Fish Trade

    Hawai’i has just proclaimed all sharks are protected from fishing, yet sharks rely on healthy fish and coral reefs to survive. With Hawaiian cultural leaders, In Defense of Animals, The …

  • Kona Gold: the Yellow Tang

    Due to its bright color and behavior, the yellow tang is also one of the most popular marine aquarium fish. Collected in the wild, Lemon Tangs can bring some of …

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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.

Our media partner is Scubazoo, who we thank for their generous support and donation of images.