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Record W4417230389 · doi:10.3354/aei00515

Effects of finfish farms in eastern Canada (Nova Scotia) on American lobster and rock crab movements

2025· article· en· W4417230389 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
TopicCrustacean biology and ecology
Canadian institutionsnot available
Fundersnot available
KeywordsBayAquacultureDecapodaCrustaceanAmerican lobsterFish <Actinopterygii>

Abstract

fetched live from OpenAlex

While aquaculture is increasing worldwide, there are concerns on the east coast of Canada about the influence of finfish aquaculture sites on crustacean distribution patterns. This study evaluated the abundance and movement of American lobsters Homarus americanus and rock crabs Cancer irroratus in the vicinity of 2 salmonid aquaculture leases in Liverpool Bay and Port Mouton, Nova Scotia. The study was done over a full 3 yr production cycle in Liverpool Bay. In Port Mouton, the study was done over 4 mo in 2019, 4 yr after salmonid production had ceased. Each year, around 50 lobsters and 50 crabs were tagged with acoustic transmitters and released at an existing fish farm or at 1 of 2 reference sites. Tagged lobsters travelled throughout Liverpool Bay and showed little affinity to the farm, as most lobsters caught and released adjacent to or below the farm did not stay in the area over time, and their home ranges did not exhibit much overlap with the farm. Very similar patterns were observed for lobsters released in the reference areas and in Port Mouton sites. In contrast, rock crabs moved more slowly than lobsters and seemed to be associated with the farm in Liverpool Bay, as their home ranges had a high overlap with the farm for crabs tagged directly under it. Overall, both rock crab and lobster associated with the Liverpool Bay aquaculture site, although the degree of association varied by species with rock crabs being much more attracted to the area under the farm.

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 score0.350
Threshold uncertainty score1.000

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)0.0010.000

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 head0.222
Teacher spread0.217 · 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