MétaCan
Menu
← Back to cohort
Record W7097542398

Table 1. Pre-causeway fish species list.

2015· article· en· W7097542398 on OpenAlexaboutno aff

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEnvironmental Science
TopicFish Ecology and Management Studies
Canadian institutionsnot available
Fundersnot available
KeywordsFish migrationBayEstuaryHabitatTable (database)Fish <Actinopterygii>STREAMSHydropower
DOInot available

Abstract

fetched live from OpenAlex

The Petitcodiac River Causeway, constructed in 1968 as a transportation link between Moncton and Riverview, New Brunswick, forms aphysical barrier to fish migrating between marinc and freshwater portions of the river system. Over half tlie fish species formerly recorded from tlie freshwater portion of the river are diadromous, and most have been adversely affected by the causeway, which blocks the estuary about 24 krn below the fomier head of tide. Prominent species that havc been reduced or eliminated irom the system include Atlantic salmon (partoftlie genetically distinct Inner Bay of Fu~idy stock), sea-nin brook trout, American shad, striped bass and rainbotv smelt. Over the past three decades, operating procedures of the control gates and the configuration of tile vertical-slot fishway have bee11 modified several times in attempts to improve fish passage. Eventually, gate operating procedures ofthe 1980s and 1990s will be statistically analysed using the gale operator's logbook data in order to evaluate the historical fish passage opportunities of all diadromous species recorded from the system. I-fere, I review some rclevalit history. What species require passage? Diadronious species require migration between freshwater rivers such as tliose in tile Petitcodiac system atximarine witers such as the Bay ofFundy to coinplete their life cycles. 111 order to enter or leave the fresh waters of the Petitcodiac, diadromous species must transit the area where the causeway is now located. Diadro~nous taxa clearly dominated the ecology and fisheries of tlie Petitcodiac, in the days before the causeway (Table 1).

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.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesInsufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: Not applicable
GenreCandidate signal: Other · Consensus signal: none
Teacher disagreement score0.595
Threshold uncertainty score0.848

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0040.005
Science and technology studies0.0010.000
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.4050.239

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 head0.023
GPT teacher head0.216
Teacher spread0.193 · 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

Classification

machine, unvalidated

Machine predicted; the direct Gemma label and the distilled Codex classifier agree on what is shown here.

Study designNot applicable
Domainnot available
GenreOther

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2015
Admission routes1
Has abstractyes

Explore more

Same topicFish Ecology and Management Studies→French-language works237,207→