ArticleEcology and evolution2026
Environmental and Protection Effects of Shark-Companion Associations Across Three Ocean Basins.
Article in Ecology and evolution, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Correction to "Environmental and Protection Effects of Shark-Companion Associations Across Three Ocean Basins".Ecology and evolution · 2026Article
Corrections and comments
- Erratum issued
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Ecological associations such as mutualism, commensalism and parasitism strongly influence animal fitness and ecosystem structure, yet they remain poorly understood in the open ocean. Ecological interdependence means that the loss of one species can trigger co-declines and accelerate biodiversity loss. Large, mobile animals often host smaller 'companion' species that gain benefits such as protection from predation, foraging opportunities, or host-mediated transport through close association. We quantified companion-host associations among seven shark species present across three ocean basins. This is the first large-scale assessment to investigate how environmental conditions and marine protected-area (MPA) status shape these associations. Data on species identity, abundance and length were obtained from a curated database derived from midwater Baited Remote Underwater Video Systems (BRUVS). Almost half of individual sharks hosted companions, with marked variation among species. Companions were most common on Australian blacktip sharks (
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.