John Hlavin | Marine Biologist

🙌🏼 @sharktagging PhD candidate 🦈 Marine science communicator

[John Hlavin | Marine Biologist @marinebiojohn]

🚨New 🦈 paper🚨 by Jack Elstner and team shows how nursery associated white sharks around San Diego responded to an anomalous tropical storm.

Add extreme weather to the lengthy list of dynamic drivers of shark nursery function ⛈️

https://t.co/twjeBF4oAx

[Frontiers - Marine Science @FrontMarineSci]

New Research: A decision tree to guide precautionary and adaptive tiering in marine nursery identification and management https://t.co/vYj4paMn5w #FrontiersIn #MarineScience

[John Hlavin | Marine Biologist @marinebiojohn]

⚠️NO WAKE SCROLL ZONE⚠️
🚤Proceed reading at idle speed⛴️

New meta-analysis untangles the effects of vessel disturbance on marine megafauna, published open access in npj Ocean Sustainability!

https://t.co/dqfPCAEC74

[John Hlavin | Marine Biologist @marinebiojohn]

🚨NEW 🦈 PAPER🚨

Who would have thought that only 80 km of separation across the Straits of Florida would be enough to create significant differences in age and growth of Atlantic nurse sharks? Well… now us!

Curious? Open access article linked below

https://t.co/lCo3BuQTGf

[John Hlavin | Marine Biologist @marinebiojohn]

@IsotopeEcology Thanks so much for sharing!!

[John Hlavin | Marine Biologist @marinebiojohn]

@Unpop_Science @MikeBanuch I just love it that people with no writing background see punctuation—one of my favorites too because parenthetical asides don’t go well with the parenthetical citations of academic writing—they’re unfamiliar with and immediately assume it’s AI generated

[John Hlavin | Marine Biologist @marinebiojohn]

@MikeBanuch @Unpop_Science What exactly are you implying was written by ChatGPT?

[spencer 🦈 @Unpop_Science]

This is wild:

Last year, I spotted this critically endangered great hammerhead… in the middle of urban Miami. It wasn’t a fluke.

My colleagues published a study today showing this bay — full of yachts, crab traps, and fishing boats — is a vital nursery habitat.

link below ⬇️

[John Hlavin | Marine Biologist @marinebiojohn]

What’s something specific to your career field that should be better communicated to people aspiring to that field but sadly isn’t? I’ll go first:

For aspiring STEM academics: PhD programs pay you to go to grad school, not the other way around! Surprisingly not well-known.

[John Hlavin | Marine Biologist @marinebiojohn]

@ben_hlina @chris_harrod Ooooh yes I think that’s exactly how to do it, will report back!

[Benjamin Hlina, PhD @ben_hlina]

Trophic ecologists who work with stable isotopes I bring you a new pkg, {nichetools} - a complementary package to {SIBER} and {nicheROVER} that allows you to work with data objects created by either pkg. Check it out!
https://t.co/SwM29t7bPk

#rstats #stableisotopes #foodwebs

[John Hlavin | Marine Biologist @marinebiojohn]

@ben_hlina @chris_harrod One question, I historically have used SIBER, and manually created functions to plot SEAc in ggplot as opposed SEA 40% CI ellipses (I face some small sample sizes in my work). I see I can manipulate p_ell but can I introduce sample size correction?

[John Hlavin | Marine Biologist @marinebiojohn]

@ben_hlina @chris_harrod Thank you! First paper on great hammer ontogenetic niche shifts submitted for publication (which will hopefully happen in the coming months 🤞🏼)

[Save Our Seas @saveourseas]

Find out how project leader, @marinebiojohn , is uncovering the mystery of guitarfish diets and their niches in the food web, as he recounts his time in the field. More on his work below.
https://t.co/kkQvNe4tDZ

[John Hlavin | Marine Biologist @marinebiojohn]

@saveourseas 🫶🏼🎸🐟

[John Hlavin | Marine Biologist @marinebiojohn]

@sharktagging 381 cm 🫢

[John Hlavin | Marine Biologist @marinebiojohn]

@ImTheDudeManToo @invertebabe Which also means that they don’t have to go to a school that offers marine biology as a major (mine didn’t and was nowhere near the coast). Tons of other majors can work just as well: biology, biochem, environmental science, etc

[John Hlavin | Marine Biologist @marinebiojohn]

@ImTheDudeManToo @invertebabe For undergrad it really doesn’t matter all that much! It’s far more important IMO to go to a school that is the proper all-around fit (in other words will support a person and all their interests both inside and outside the classroom).

[John Hlavin | Marine Biologist @marinebiojohn]

Stuck thinking about the juvenile whale shark that was found 40km up a river in Queensland in 2019 (just learned about this incident for the first time). Does anyone on here know what its fate was?

https://t.co/w525d4rI7c