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June 21, 2026Marine Mammal ScienceOpen Access

Nocturnal Haul‐Out Behavior of Rehabilitated Gray Seal Juveniles ( Halichoerus grypus ) in the Baltic Sea

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Authors

LKLaura KuncienėUSUrsula SiebertŽKŽilvinas Kleiva

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Overview

Randomized trial investigates haul-out behavior in rehabilitated juvenile gray seals, suggesting potential links to prey patterns.

Key Points

  • The research aims to characterize the haul-out behavior of rehabilitated gray seal juveniles in the Baltic Sea.
  • 14 rehabilitated juvenile gray seals were monitored using Argos satellite transmitters.
  • Seals' spatial and temporal haul-out behaviors were analyzed following their release.
  • Behavioral observations focused on haul-out patterns during night hours.
  • Seals primarily hauled out in evening and night, with peak activity post-sunset.
  • Haul-out probability and duration increased with longer nights without seasonal or sex-related effects.
  • Findings suggest haul-out patterns may develop early in life, influenced by various factors.

Cite This Study

Kuncienė et al. (2026) studied this question.

synapsesocial.com/papers/6a37815a24f042ddf4c5b375https://doi.org/10.1111/mms.70222
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Also Consider

Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Seasonal and predator-prey effects on circadian activity of free-ranging mammals revealed by camera traps2018 · 98 citations
  2. 2Status of Baltic grey seals: Population assessment and extinction risk2007 · 120 citations
  3. 3From pup to predator: generalized hidden Markov models reveal rapid development of movement strategies in a naïve long‐lived vertebrate2019 · 39 citations