Grace Casselberry, PhD
@gacasselberry.bsky.social
Postdoctoral researcher @ UMass Amherst currently chasing striped bass in MA and tracking sharks in STX | predator-prey interactions, rec fisheries, depredation, MPAs | National Geographic Explorer
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
@factnetwork.bsky.social @oceantracking.bsky.social
April 7, 2025 at 2:58 PM
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
@factnetwork.bsky.social @oceantracking.bsky.social
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.
April 7, 2025 at 2:58 PM
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.
Today I’m doing a little acoustic receiver inventory with @innovasea.com’s newest customer.
February 13, 2025 at 5:02 PM
Today I’m doing a little acoustic receiver inventory with @innovasea.com’s newest customer.
Lots of new folks here so I thought I’d reshare. If you’re an angler who has targeted or is planning a trip to fish for golden dorado please consider taking our survey on fishing practices. Tell your friends too! bit.ly/gdorado 🧪🌊🐟🎣
December 6, 2024 at 12:42 AM
Lots of new folks here so I thought I’d reshare. If you’re an angler who has targeted or is planning a trip to fish for golden dorado please consider taking our survey on fishing practices. Tell your friends too! bit.ly/gdorado 🧪🌊🐟🎣
Hi Bluesky peeps 👋🏻
I’m Grace. I’m a fish ecologist who works mainly with sharks and recreationally valuable fish species and sometimes the interactions between the two. Lately it’s tiger sharks in the USVI and striped bass here in MA. I do lots of telemetry with a dash of social science. 🐟🦈🧪🌊
I’m Grace. I’m a fish ecologist who works mainly with sharks and recreationally valuable fish species and sometimes the interactions between the two. Lately it’s tiger sharks in the USVI and striped bass here in MA. I do lots of telemetry with a dash of social science. 🐟🦈🧪🌊
November 19, 2024 at 4:46 PM
Hi Bluesky peeps 👋🏻
I’m Grace. I’m a fish ecologist who works mainly with sharks and recreationally valuable fish species and sometimes the interactions between the two. Lately it’s tiger sharks in the USVI and striped bass here in MA. I do lots of telemetry with a dash of social science. 🐟🦈🧪🌊
I’m Grace. I’m a fish ecologist who works mainly with sharks and recreationally valuable fish species and sometimes the interactions between the two. Lately it’s tiger sharks in the USVI and striped bass here in MA. I do lots of telemetry with a dash of social science. 🐟🦈🧪🌊
If you have fished or are planning to fish for Golden Dorado (dourado) please take our survey to contribute to improved conservation and management efforts for the species. The survey is available in Brazilian Portuguese, English, and Spanish. bit.ly/gdorado 🐟🎣🧪 Please share widely.
November 12, 2024 at 3:36 PM
If you have fished or are planning to fish for Golden Dorado (dourado) please take our survey to contribute to improved conservation and management efforts for the species. The survey is available in Brazilian Portuguese, English, and Spanish. bit.ly/gdorado 🐟🎣🧪 Please share widely.
Current direction significantly influenced depredation events. Depredation risk was higher on the outgoing current. Movement data shows hammerheads also occupied a smaller area within the channel on the outgoing current.
February 8, 2024 at 6:50 PM
Current direction significantly influenced depredation events. Depredation risk was higher on the outgoing current. Movement data shows hammerheads also occupied a smaller area within the channel on the outgoing current.
Great hammerhead presence in Bahia Honda increased with increasing numbers of tarpon and they modified their space use within the channel in response to tarpon presence. (🦈 = red, 🐟 = yellow)
February 8, 2024 at 6:49 PM
Great hammerhead presence in Bahia Honda increased with increasing numbers of tarpon and they modified their space use within the channel in response to tarpon presence. (🦈 = red, 🐟 = yellow)
Using a combination of visual surveys of fishing and acoustic telemetry we quantified depredation rate, documented environmental and behavioral factors driving depredation, and tracked the movements of both species at this recreational fishing hotspot.
February 8, 2024 at 6:47 PM
Using a combination of visual surveys of fishing and acoustic telemetry we quantified depredation rate, documented environmental and behavioral factors driving depredation, and tracked the movements of both species at this recreational fishing hotspot.