Evidence map›Paper›PMID 42007268›Full record

ArticleEcology and evolution2026

Diverging Food Web Functioning Around Southampton Island, Nunavut: The Influence of Primary Production Supply and Bathymetry.

Rémi Amiraux, C J Mundy, Marie Pierrejean, Philippe Massicotte, Steven H Ferguson, Aaron T Fisk, Les N Harris, Kevin J Hedges, Kelsey F Johnson, Andrea Niemi and 4 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Ecology and evolution, 2026. 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

14 authors.

Rémi AmirauxLaboratoire de Recherche International Takuvik CNRS, Université Laval, Sorbonne Université Québec Québec Canada.ORCID https://orcid.org/0000-0002-1369-3614
C J MundyCentre for Earth Observation Science University of Manitoba Winnipeg Manitoba Canada.
Marie PierrejeanLaboratoire de Recherche International Takuvik CNRS, Université Laval, Sorbonne Université Québec Québec Canada.
Philippe MassicotteLaboratoire de Recherche International Takuvik CNRS, Université Laval, Sorbonne Université Québec Québec Canada.
Steven H FergusonFreshwater Institute, Arctic Region, Fisheries and Oceans Canada Winnipeg Manitoba Canada.ORCID https://orcid.org/0000-0002-3794-0122
Aaron T FiskGreat Lakes Institute for Environmental Research University of Windsor Windsor Ontario Canada.
Les N HarrisFreshwater Institute, Arctic Region, Fisheries and Oceans Canada Winnipeg Manitoba Canada.
Kevin J HedgesFreshwater Institute, Arctic Region, Fisheries and Oceans Canada Winnipeg Manitoba Canada.
Kelsey F JohnsonFreshwater Institute, Arctic Region, Fisheries and Oceans Canada Winnipeg Manitoba Canada.
Andrea NiemiFreshwater Institute, Arctic Region, Fisheries and Oceans Canada Winnipeg Manitoba Canada.
Bruno RosenbergFreshwater Institute, Arctic Region, Fisheries and Oceans Canada Winnipeg Manitoba Canada.
Wesley R OgloffFreshwater Institute, Arctic Region, Fisheries and Oceans Canada Winnipeg Manitoba Canada.
Cortney A WattFreshwater Institute, Arctic Region, Fisheries and Oceans Canada Winnipeg Manitoba Canada.
David J YurkowskiFreshwater Institute, Arctic Region, Fisheries and Oceans Canada Winnipeg Manitoba Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The structure and functioning of Arctic marine food webs are shaped by the origin (ice- or pelagic-derived), quantity, and quality of primary production, which are influenced by environmental factors. While pan-Arctic variability has been widely studied, spatial differences at smaller scales (~10-500 km) remain poorly understood. In this study, we examined north-south spatial variability around Southampton Island in the Hudson Bay (Nunavut) focusing on (i) vertical trophic structure, (ii) the relative contributions of ice algae and phytoplankton-derived carbon to the food web and (iii) benthic functional diversity. We measured bulk stable carbon and nitrogen isotopes as well as highly branched isoprenoids in samples belonging to 149 species, including invertebrates, fishes, and marine mammals. We found marked contrasts between the northern and southern food webs, reflecting different environmental conditions. The north was characterized by deeper depths (mean of 132.0 m), with relatively lower ice algae production relative to phytoplankton, a narrow δ

Indexed as

benthiccarbon fluxdiversityfunctional traitshighly branched isoprenoids δ13Chighly branched isoprenoids δ15NHudson BaypelagicSouthampton Islandstable isotopes

Identifiers

PMID42007268
PMCPMC13083602

What OpenQuestion holds

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Registered trials

None linked

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.