Has the Benthic Macroinvertebrate Community in Southwestern Lake Ontario Changed since the Round Goby (Neogobius melanstomus) Invasion
Bibliographic record
Abstract
This presentation introduces a thesis proposal that focuses on evaluating changes in benthic macroinvertebrate communities at a natural cobble site and artificial reef habitat following invasion of zebra and quagga mussels (Dreissena polymorpha and D. bugensis) and the exotic round goby. Situated near Olcott, NY, the natural cobble site and artificial reef have been sampled since 1983 (7 years pre-Dreissena), with subsequent sampling in 1991-1992, 1995, and 1999-2000. Fourteen years have elapsed since the last sampling event; anticipated sampling in 2014 will investigate round goby and Dreissena abundance, as well as native invertebrate and fish abundances and diversity. Past data analyses at these sites showed mixed responses of native invertebrates to Dreissena spp. colonization; from 1983 to 1999-2000, 5 of 11 invertebrate taxa more than doubled and 6 decreased by more than 50% at the cobble site while gastropods more than doubled and chironomids decreased by more than 50% at the reef habitat. The objectives of this project include collecting replicate samples of invertebrates along one 30-m transect at each site and quantifying round goby abundance using underwater video recording. Statistical comparisons will be conducted across years, months, and habitats using ANOVA and t-tests. Multivariate techniques will be utilized for analyzing the large dataset. The main goals of monitoring these habitats are two-fold: 1) to predict likely future impacts of aquatic invasive species and 2) to improve understanding of the population trends and threats to key aquatic populations.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".