Grace Casselberry, PhD

🔍 𝗡𝗲𝘄 𝗙𝗶𝘀𝗵 𝗠𝗶𝗴𝗿𝗮𝘁𝗶𝗼𝗻 𝗦𝘁𝘂𝗱𝗶𝗲𝘀 𝗳𝗿𝗼𝗺 𝗙𝗔𝗖𝗧 𝗡𝗲𝘁𝘄𝗼𝗿𝗸 𝗠𝗲𝗺𝗯𝗲𝗿𝘀:

🔹𝙂𝙧𝙚𝙖𝙩 𝙃𝙖𝙢𝙢𝙚𝙧𝙝𝙚𝙖𝙙 𝙎𝙝𝙖𝙧𝙠𝙨 - 𝘊𝘢𝘴𝘴𝘦𝘭𝘣𝘦𝘳𝘳𝘺 𝘦𝘵 𝘢𝘭. 2025
Great hammerheads each have their own travel plans - some stay in the Florida Keys while others take off on trips into the Gulf or up the Atlantic coast. 🦈🌊

doi.org/10.1111/jfb....

"PhD-level experts in your back pocket" is a completely nonsensical description of AI but a pretty good description of social media if you follow the right people

Postdoctoral Researcher All Job Postings will close at 12:01a.m. CST (1:01a.m. EST) on the specified Closing Date (if designated). If you close the browser or exit your application prior to submitting, the application progre...

Fun news: I'm hiring a postdoc in ichthyology!

Please spread the word #TeamFish, and message me if you have questions.

(Job requisition id is R00107333 if LSU link below takes you elsewhere.)

lsu.wd1.myworkdayjobs.com/en-US/LSU/de...

Oh this is very cool! I haven’t seen something like this before.

Thanks David. I’ll send you an email. It would be helpful to chat.

I’m teaching a science communication course to our natural resources and EnviSci students this fall. I want to make a resource list of excellent SciComm examples. What are some podcasts, video series, periodicals, writers, and creators that you’re loving lately that my students should know? 🧪🦈🐟

Our #AES25 #JMIH25 symposium continues with @gacasselberry.bsky.social talking about her interdisciplinary work with recreational anglers

Two silver kings shimmer in the golden hour of the summer solstice Sun 👑🐟🌞🐟👑 #tarpon #silverking #solstice #shiny #goldenhour #maximumaxialtilt #summer #coral #coralhead #coralcitycamera #miami #portmiami #miamibeach #biscaynebay #coralcity #civicpridethroughbiodiversity

An absolutely incredible couple of weeks in the BVI.

Keep Fish Wet Keepemwet Fishing promotes releasing fish in the best condition possible to reduce the impact sport anglers have on fisheries around the globe.

Just wrapped up Chairing the board meeting for KeepFishWet.org. We just launched a 10 minute "mini lesson" on how to engage in responsible and effective catch-and-release. Download the lesson here: www.keepfishwet.org/mini-lesson

Congrats!!

Rapid Response Bridge Funding Program In the face of recent abrupt shifts in federal funding for education research, including large-scale terminations of National Science Foundation (NSF) research grant awards, we have developed a rap...

**Rapid Response Bridge Funding Program** -- $25,000 grants earmarked for early-career researchers whose NSF-funded research on STEM and education has just been terminated.

www.spencer.org/grant_types/...

hub.jhu.edu/2025/04/28/j...

Thanks @lizneeley.bsky.social !

Cannonball jellies are so cool! I had no idea there was a species that was blue like this.

A squadron of silver kings in the golden light #tarpon #silverking #megalopsatlanticus #squad #squadron #goldenlight #goldenhour #shiny #bonyfish #coral #coralcitycamera #miami #portmiami #biscaynebay #bfi #noaa #aoml #coralcity #civicpridethroughbiodiversity #glennnevis #coralcityfoundation

Social media for fisheries science and management professionals: How to use Bluesky and Instagram, and why you should ABSTRACT. Social media tools have revolutionized how people communicate with one another. A 2018 paper in Fisheries summarized the use of Twitter, Facebook

New paper!

Social media for fisheries science and management professionals: How to use Bluesky and Instagram, and why you should.

This is the *first* paper in the peer reviewed scientific literature to explain how Bluesky works and how to use it for #SciComm 🧪🦑🐠

academic.oup.com/fisheries/ad...

As someone who is generally terrible at intros this is both hilarious and flattering. Glad I’m better at it online than IRL.

Thank you! Wouldn’t have been possible without the awesome FACT members that shared their detections.

Thank you! They are a very cool species to get to work with.

An underwater view of a great hammerhead shark secured at the side of the boat in preparation for tagging. Sharks handled under permit SAL-21-2107-SRP.

Collectively this adds to our growing understanding of space use for great hammerheads in the southeastern United States. @sci-angler.bsky.social @sjcfishy.bsky.social
@factnetwork.bsky.social @oceantracking.bsky.social

Within the Florida Keys, frequent movements between inshore points and the reef tract could be driven by prey availability as they often correspond to known spawning and pre-spawning aggregations for various fish like tarpon, permit, and snapper.

A map of great hammerhead shark movements along the Florida coast showing movements along both the Gulf and Atlantic.

We documented partial migration with some sharks remaining in the Keys year round while those that left exhibited strong connectivity between the Keys and Gulf or the Keys and Atlantic but rarely ventured along both the Gulf and Atlantic coasts of FL during 3 years of tracking.

Migratory patterns and seasonal habitat use of great hammerhead sharks (Sphyrna mokarran) in the southeastern United States The great hammerhead shark (Sphyrna mokarran) is a highly mobile shark species whose population in the United States declined dramatically through the early 2000s. Their spatial ecology is poorly und...

I’m excited to share that the final chapter of my dissertation has been published. We used multiple applications of network analysis to acoustic telemetry data to explore seasonal movements of great hammerhead sharks tagged in the FL Keys. 🧪🦈

doi.org/10.1111/jfb.70039

Thrilled to share one of my dissertation chapters is now published in Animal Behaviour!

We used biologgers to quantify 3D search behavior by great hammerheads & asses how the scale and speed of searching changes over the diel cycle. 🦑🌊🧪🐟

Read it here: www.sciencedirect.com/science/arti...

OTN’s study hall promotes a culture of open science by providing a platform for transparent discussions and problem-solving. These informal sessions on Thursdays can be a valuable resource for anyone interested in aquatic telemetry. Learn more: oceantrackingnetwork.org/study-hall/

Tarpon, silver king, the big boss boney fish of Coral City! #tarpon #silverking #bigboss #boneyfish #remora #coral #coralhead #coralcitycamera #miami #portmiami #miamibeach #biscaynebay #coralcity #civicpridethroughbiodiversity #glennnevis #coralcityfoundation #ccf #kbcf

a hammerhead shark is swimming in the water Alt: a hammerhead shark is swimming in the water

The final chapter of my dissertation was just accepted for publication after a lengthy review process! So happy that this one will be out in the world soon.

Maine Sea Grant in jeopardy after Trump administration terminates $4.5 million grant program The move to discontinue the four-year agreement — which comes amid the White House's efforts to slash the National Oceanic and Atmospheric Administration's budget — leaves the fishery organization’s p...

The Trump Administration has abruptly pulled $4.5 million in Maine Sea Grant funds (via NOAA), which were used to protect Maine’s working waterfront and ocean ecosystems.

www.pressherald.com/2025/03/01/m...

I worry that the focus on NOAA's weather predicting value is ignoring the millions of other ways NOAA researchers enrich communities and local economies.

There are no oysters without NOAA. There are no blue crabs without NOAA. NOAA trains teachers. NOAA is the lifeblood of coastal communities.

An Irish setter puppy sits next to acoustic receiver equipment and a tablet on a beach towel.

Today I’m doing a little acoustic receiver inventory with @innovasea.com’s newest customer.