Associate Professor of Biology at @PLNU & marine biologist at @Scripps_Ocean, interested in #sharkscience, #animalbehavior, #scicomm, & #diversityinSTEM. 🇵🇷

Joined August 2011
185 Photos and videos
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5-min-old bat ray born on boat while tagging mom. 1st time in the ocean! #FlatSharkFriday #sharkweek @Scripps_Ocean
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Not as cool as #sharks, but also saw these #dolphins yesterday near @Scripps_Ocean pier. They were beautiful to watch and it was a gorgeous day! #LaJolla #SanDiego
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This was yesterday off #LaJolla, the morning after the remnants of #HuricaneHilary passed through #SanDiego. Clearly, the leopard #sharks were unfazed and the water was surprisingly clear. See the white flashes? Those are sharks rolling over! @PLNU @Scripps_Ocean #sharkscience
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Tons of leopard #sharks and bat rays in only knee-deep water this morning off #LaJolla, the day before #HuricaneHilary due to roll into #SanDiego. Will be interesting to check on them again after the storm. Stay safe out there! @PLNU @Scripps_Ocean #sharkscience
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This stunning, extra spotty leopard #shark was seen off #LaJolla Shores Beach this weekend. This unusual color morph deviates from the typical pattern of horizontal saddles with spots. Video by Peter Demman (Instagram: pdemman). @PLNU @Scripps_Ocean #sharkscience #SanDiego
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This is a big female, likely pregnant. I would love to know what the pups look like!
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Cute baby leopard #shark alert off #LaJolla #SanDiego! Two-foot-long male. @PLNU @Scripps_Ocean #sharkscience #babyshark for real
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Andrew Nosal retweeted
The Movement Ecology Lab at @IslandCampus is recruiting a PhD student for Spring Semester 2024! Start date is Jan. 16. Please complete the form by Aug. 18 using the link forms.gle/9QNENXFiUYbWv3JY6 or QR code below. Please RT! @ElasmoSociety @AmFisheriesSoc @FutureIslander
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This rolling behavior is common in #sharks, including leopards. They are rubbing their head, back, and sides on the sand, likely trying to dislodge ectoparasites, like these copepods. @PLNU @Scripps_Ocean #sharkscience #sharkweek #Tech4Wildlife (underwater video by Kenneth Merk)
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Here, 180 leopard #sharks have been tracked using #computervision from #drone footage captured off #SanDiego (that's a harbor seal that spooks a few of the sharks). Next three tweets show tracking results. @PLNU @Scripps_Ocean #sharkscience #SharkWeek #Tech4Wildlife (1/4)
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This density 'heat map' captures the overall structure of the leopard #shark aggregation. Contours (from outside) are 99%, 95%, and then 90% to 10% (in 10% increments). @PLNU @Scripps_Ocean #sharkscience #SharkWeek #Tech4Wildlife (3/4)
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Lastly, just for fun, here are four individual #shark tracks to show some of the variation among the aggregating leopard #sharks. @PLNU @Scripps_Ocean #sharkscience #SharkWeek #Tech4Wildlife (4/4)
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A few close-ups of the beautiful leopard #shark we just caught and released off #SanDiego, including a parasite (that we removed). ⁦@PLNU⁩ ⁦@Scripps_Ocean#sharkscience #sharkweek
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Aerial #drone footage of a leopard #shark aggregation off #SanDiego (4x speed). We are using the program TRex (by @po7ooo and @icouzin) to track individual sharks, to study their movement patterns relative to their neighbors. @PLNU @Scripps_Ocean #sharkscience #SharkWeek
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Just caught and released this shovelnose guitarfish off #SanDiego They are so beautifully weird! @PLNU @Scripps_Ocean #sharkscience #sharkweek #flatsharkfriday
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Andrew Nosal retweeted
We found that cookiecutters sharks loved swordfish. They would be covered in bites. Never saw anything like this though! Those bites likely happened while the fish was on the line... Captain Reels In Swordfish Covered In Cookie Cutter Holes msn.com/en-us/video/animals/…

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Andrew Nosal retweeted
14 Jul 2023
This nonprofit is making waves for more diversity in shark science
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¡Gasolinera padre estilo tiburón aquí en Guadalajara! Cool #shark gas station here in Guadalajara! #sharksnearme
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It’s that time of year! Discussing recent #shark sightings with CNN’s ⁦⁦@kimbrunhuber⁩. As #sharkfest ends and #sharkweek begins, remember there is no such thing as shark-infested waters. That’s their home and you can’t infest your own home! cnn.com/videos/us/2023/07/08…

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Andrew Nosal retweeted
Excited to share that I have begun working as a Research Assistant Professor at @SoMAS @stonybrooku I have several new projects with support for MS and PhD students interested in marine animal #telemetry and #ecophysiology. Please reach out if you are interested!
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