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Record W4417185630 · doi:10.3354/aei00513

Role of flocculation in the spatial and temporal variation in organic matter flux at an active salmon aquaculture site in a deep fjord

2025· article· en· W4417185630 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueAquaculture Environment Interactions · 2025
Typearticle
Languageen
FieldEnvironmental Science
TopicMarine Bivalve and Aquaculture Studies
Canadian institutionsnot available
Fundersnot available
KeywordsOrganic matterAquacultureFlux (metallurgy)Spatial variabilityVariation (astronomy)Flocculation

Abstract

fetched live from OpenAlex

Sediment traps with programmable bottles collected settling material in a deepwater fjord on the southwest coast of Newfoundland at active salmon aquaculture sites and at sites 1000 m away from operations. Both the total and organic fluxes were up to an order of magnitude larger at the 2 aquaculture sites compared to the 2 sites 1000 m away. Stable isotopes, organic matter %, % carbon, and grain size were used to characterize the transport of aquaculture-derived waste material away from active sites. Floc fraction, a process-based parameterization of the disaggregated inorganic grain size of collected sediment, was used to show that flocculation was the dominant process in controlling the deposition of suspended particulate matter. Up to 79% of the material deposited was flocculated. Stable isotope and organic carbon analysis of the deposited material indicated that aquaculture waste products could be elucidated 1000 m from operations, consistent with other studies. In this fjord setting, the simplistic model AutoDEPOMOD was unable to predict the amount of organic matter deposition that was observed in our sediment traps. Better model parameterization is required in order to confidently simulate and manage the effects of finfish aquaculture discharges.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.143
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.005
GPT teacher head0.229
Teacher spread0.225 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it