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| Main Authors: | , , , , , , , , , , , , , , , , , , |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Journal of plankton research
2026
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| Online Access: | https://pubmed.ncbi.nlm.nih.gov/42292050/ |
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Table of Contents:
- Diverse sampling programs highlight pulses of along the US West Coast. Cimino, Megan A Conroy, John A Gasbarro, Ryan Jacox, Michael G Hoover, Brian Santora, Jarrod A Palance, Danial G Nazario, Emily C Schroeder, Isaac Schonfeld, Adena Cluett, Allison Pozo Buil, Mercedes Lezama-Ochoa, Nerea Hazen, Elliott L Bjorkstedt, Eric Jahncke, Jaime Jones, Timothy Ohman, Mark D Parrish, Julia Sporadic mass strandings of the hydrozoan, , along the US West Coast fascinate beachcombers and perplex oceanographers. often arrive to the coast in the spring concurrent with a shift in onshore winds and after winters with warmer water temperatures. Understanding the factors that bring to coastal waters provides new information about the ecological impacts of local and basin-scale environmental variability in the northeast Pacific. We summarize several compelling, non-exclusive hypotheses that could explain the recent increase in , including increased population size, larger surface patches and enhanced coastward transport. We compiled a comprehensive dataset spanning planktonic larval to colonial adult life stages from 10 sources covering ~1900-2025. We highlight pulses of and an unprecedented number of strandings and at-sea observations since 2014. We found that wind patterns in the central-east Pacific favor transport toward the coast during years of presence. However, we found no clear relationship between surface frontal features and abundance, nor a consistent association with El Niño. We also identified phalarope abundance as a potential seabird proxy for increased abundance at-sea. Finally, we provide recommendations for future monitoring efforts to improve long-term assessments, given the current inability to clearly distinguish among hypotheses.