****Telemetry cohort spring pulse: Pacific/Atlantic movements** [developing]** [developing]
Key Questions
What is the 'telemetry cohort spring pulse' referring to?
The telemetry cohort spring pulse describes synchronized movements of tracked great white sharks across Pacific and Atlantic regions during spring. Sharks like Kara, Teresa B, Breton, Contender, CAYO, Brass Bed, Goodall, Bella, and Brookes are showing these patterns, with surges noted in the Gulf and California areas.
Which great white sharks are moving synchronously in this pulse?
The synchronously moving sharks include Kara, Teresa B, Breton, Contender, CAYO, Brass Bed, Goodall, Bella, and Brookes. These movements are tracked via telemetry and indicate a coordinated spring migration.
What surges are observed in the Gulf and California?
There are surges of great white sharks in Florida's Gulf waters and California, linked to seasonal migration, warmer water temperatures, and feeding opportunities. Experts predict increased prevalence in Southern California this summer due to these warmer waters.
What does 'orca-GW' mean in the context of this highlight?
'Orca-GW' refers to interactions between orcas and great white sharks (GW). Reports include orcas surrounding boats shortly before sharks bit anchor lines, and instances of great whites potentially being attacked by orcas, challenging the shark's top predator status.
What activity is noted in NE Rhode Island and Maine?
In the Northeast, including Rhode Island (using BRUV surveys) and Maine, there are detections of great white sharks. This aligns with broader Atlantic movements tracked via telemetry.
Why are great white sharks declining in False Bay?
Great white sharks have disappeared from False Bay, as discussed in interviews with experts like Chris Fallow. The reasons are under investigation, potentially tied to environmental changes or predator interactions.
What are poleward movements in shark migrations?
Poleward movements indicate sharks migrating toward higher latitudes, such as from warmer equatorial areas northward. Examples include the 1,400-lb shark 'Breton' pinging off Georgia and near Turks and Caicos, showing poleward shifts.
What pending data is needed for this highlight?
Pending metadata, sea surface temperature (SST) data, and prey availability information are required to fully analyze these movements. This will help explain the synchronous pulses and regional surges.
Synchronous: Kara/Teresa B/Breton/Contender/CAYO/Brass Bed/Goodall/Bella/Brookes; Gulf/CA surges; orca-GW; NE RI BRUV/Maine; False Bay declines; poleward. Pending metadata/SST/prey.