Diel and spatial variability in cyanobacterial composition, gene abundance, and toxin concentration: a pilot study.

V G Christensen, L R Katona, J F LeDuc, R P Maki, H T Olds, J C Smith, H E Trompeter

Abstract read

In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it

0cells of the map it votes in

0citing papers in PubMed

–field-weighted citation impact

1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

V G ChristensenU.S. Geological Survey, Upper Midwest Water Science Center, St. Paul, MN, USA. vgchristensen@gmail.com.

L R KatonaU.S. Geological Survey, Upper Midwest Water Science Center, St. Paul, MN, USA.

J F LeDucSurfrider Foundation, San Clemente, CA, USA.

R P MakiVoyageurs National Park, International Falls, MN, USA.

H T OldsU.S. Geological Survey, Upper Midwest Water Science Center, St. Paul, MN, USA.

J C SmithVoyageurs National Park, International Falls, MN, USA.

H E TrompeterU.S. Geological Survey, Upper Midwest Water Science Center, St. Paul, MN, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We designed a pilot field study to assess relations between sunlight, cyanobacteria, and cyanotoxins. In 2021, we collected day (07:00 h, 10:00 h, 13:00 h, 16:00 h) and night samples (19:00 h, 22:00 h, 01:00 h, 04:00 h) at two locations in Kabetogama Lake, MN, USA. One sample set was collected from the lakeward end of a boat dock and the other on the nearby shoreline. Cyanobacterial phylogenetic eDNA differences over 24 h (pseudo F = 2.0938, p = 0.127) were not significant. Copies of anatoxin (anaC) and microcystin (mcyE) synthetase genes varied significantly over the sampling times at the dock (Friedman Χ

Indexed as

Bacterial ToxinsCyanobacteriaMicrocystinsCyanobacteria ToxinsLakesPhylogenyPilot ProjectsBacterial ToxinsCyanobacteria ToxinsmicrocystinMicrocystinsAnatoxin-aCyanobacteriaeDNAMicrocystinsPhotosynthetically active radiationSaxitoxins

Identifiers

PMID41053264

DOI10.1038/s41598-025-18453-5

PMCPMC12500878

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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.