Sharks are often called the Silent Killer, but are they really silent? Communication can include many senses, and sharks have senses that few other species possess.
Contrary to popular belief, sharks can produce sounds. Various species of sharks are known to create noises using a variety of methods.
Do Shark’s Pee?
How do shark void their waste products? There is a common misconception that sharks do not excrete their urine but instead void it through the blood and gill system. While partially true, sharks, like other vertebrates also urinate.
Read MoreHonoring Women’s History Month: Carmen Koepfer
This week, following 45 days of Congress in session, the Papahānaumokuākea National Marine Sanctuary has become our 18th National Marine Sanctuary.
Read MoreSupport Increasing International Protection for Endangered Sharks at CITES CoP20
As a U.S. nongovernmental organization Shark Stewards will attend CoP20 as a participant advancing the Oceanic Whitetip shark, Whale shark and Gulper Sharks. In addition we will be advancing the proposal with Mexico to increase Hammerhead sharks to Appendix I: the highest level of protection for trade available.
Read MoreShark Retention Bans Can Save Sharks
A study published in the journal Fish and Fisheries this month revealed that fisheries could reduce shark death by requiring the release of threatened sharks caught as bycatch by at least three times. Known as retention bans, the practice requires that fishermen release certain sharks that are endangered or unwanted rather than retain them for their fins or some other use.
Read MoreSevengill sharks of California, Photo ID and Community Science
Michael Bear is the President and co-founder of Ocean Sanctuaries and a board member of Shark Stewards. He manages the Sevengill Shark ID Project, which uses the pattern recognition algorithms contained in ‘Wildbook’ to help identify Sevengills returning to La Jolla [and Cape Town] from year-to-year. We are leading dive trips and recruiting divers who dive the san Diego area to submit photographs of sevengill sharks to photo ID using an algorithm.
Read MoreDiving With Sharks: Shark Science and Shark Ecotourism
Shark Ecotourism can help protect sharks from fishing and even allow shark populations to recover. However, some practices attracting sharks and maintaining their presence in an area may have negative impacts on individual sharks, shark behavior and even populations.
Read MoreGolden Gate Marine Protected Area Updates and Events
March 5, 2025 Newsletter, Golden Gate MPA Collaborative The Golden Gate MPA Collaborative brings together environmental NGOs, agencies, fishermen, scientists, aquaria, vessel captains and community interested in raising awareness of […]
Read MoreSanctuaries and NOAA in Peril
Budget cuts and the potential stripping of marine protection in our National Marine Sanctuaries is an imminent threat to over fifty years of wildlife and habitat in the USA.
Shark Stewards urges you to contact your congressman and support NOAA and our National Marine Sanctuaries.
Read MoreShark Stewards Joins Nationwide Coalition to Support NOAA
Shark Stewards has joined 377 organizations and businesses nationwide have joined together to urge Congress to oppose actions by the Trump administration to dismantle, privatize, or significantly diminish the critical services and functions of the National Oceanic and Atmospheric Administration (NOAA).
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