#AES25 #JMIH25 Finally, @marinebiojohn.bsky.social John Hlavin, Reconstructing diets of Tiger Sharks in South FL

@marinebiojohn.bsky.social at #JMIH25 #AES25 A multi-method approach can help determine the diet of tiger sharks, different methods have pros and cons. Includes data from 67 Tiger sharks- I think I helped get data on 6 of these!

Whoa- @marinebiojohn.bsky.social found *cow* and *pig* among tiger shark diet. (He thinks they were bait in lobster and crab traps)

This was a HUGE effort with LOTS of field time and LOTS of analysis – huge thank you to all my coauthors and the many folks who contributed in the field. Very proud of this one. (4/4) @dr-yannis.bsky.social 🦑🧪🌊🐟 See the paper: link.springer.com/article/10.1...

Further coverage, this time by @forbes.com columnist & #shark researcher @melissacmarquez.bsky.social, about the new paper on #hammerheadsharks using #BiscaneBay, #Florida as a #nursery Column quotes @drcatmac.bsky.social www.forbes.com/sites/meliss...

A new post from DiscoverWildlife covers the 2025 research from @marinebiojohn.bsky.social and @drcatmac.bsky.social showing tat #BiscayneBay is a nursery area for #hammerhead #sharks www.discoverwildlife.com/animal-facts...

This is wild: Recently, I spotted a critically endangered great hammerhead… in the middle of urban Miami. It wasn’t a fluke. @marinebiojohn.bsky.social & @drcatmac.bsky.social published a study today showing this bay — full of yachts, crab traps, & fishing boats — is a vital nursery habitat. 🌎🦑🧪

🚨NEW🦈PAPER🚨 Excited to announce my first publication with @drcatmac.bsky.social on the ontogenetic and seasonal trophic ecology of great hammerheads around the Biscayne Bay nursery! Linked below onlinelibrary.wiley.com/doi/10.1002/...

🚨NEW PAPER🚨 Congrats to @scrippsocean.bsky.social’s Jack Elstner and team on their new research demonstrating early successes in the application of AI-driven software Ocean Ruler as a citizen science tool for fisheries monitoring! doi.org/10.1007/s002...

Frontiers | Trophic and feeding ecology of whale sharks (Rhincodon typus) using bulk stable isotope analysis

Our two days of “Shark scientist for a day” fundraiser trips raised $10,000 that will go towards providing low-resource Miami public schools with free marine biology field experiences in the future. Thanks to my 20 social media followers for joining us and supporting this important cause!

🚨 New paper 🚨 Go check it out! Way to go, Emily!

This was a “look Ma I made it” moment I wasn’t expecting this Tuesday morning. Thanks, David!

John Hlavin @marinebiojohn.bsky.social at #JMIH24 American Elasmobranch Society 🧪🦑🦈 Biscayne Bay is a nursery area for great hammerhead sharks. They start to leave between 140-170 cm in size, expanding their niche without abandoning coastal food sources, varying habitat seasonally.

Hi Bluesky! PhD student here studying shark trophic ecology, with special focus on great hammerhead nursery use. I’ve had moderate success as a science communicator on Tiktok, Instagram, Snapchat so this is a new frontier for me. Excited to connect with y’all!