Rotifers Improve First‐Feeding for Indoor Culture of Florida Bass, <i>Micropterus salmoides</i>
Bibliographic record
Abstract
Florida bass, Micropterus salmoides , an economically important sport fish species, has great potential for indoor recirculation aquaculture systems (RAS), but knowledge about optimal dietary requirements during the early life history stages remains unresolved. Thus, the objective of this study was to determine a first‐feeding protocol for Florida bass indoor RAS culture. Four dietary treatments were tested: treatment 1 received rotifers with enriched Artemia , treatment 2 received rotifers with nonenriched Artemia , treatment 3 received only enriched Artemia , while treatment 4 received nonenriched Artemia . At 5 days posthatch (DPH), all treatments received a microdiet. Fish were sampled in regular intervals for total length (TL), body area (BA), myotome height (MH), jaw length (JL), eye diameter (ED), oil droplet area (ODA), and yolk area (YA). Condition index (CI), yolk utilization efficiency (YUE), and yolk utilization rate (YUR) were calculated. Wet weight, tank biomass, and survival were also recorded at 25 DPH. Results showed that Artemia enrichment did not influence any of the morphometric traits. Adding rotifers or enriched artemia did not significantly impact weight, final biomass, or survival at 25 DPH for Florida bass. Larvae fed rotifers exhibited a significant increase in morphometric development (TL, BA, MH, JL, ED, and CI) and were more efficient and faster at converting yolk reserves to body size. We conclude that a dietary regimen including rotifers allows Florida bass larvae to transition to exogenous energy sources faster and increase development. The present study improves understanding of black bass dietary requirements during critical early life history stages to increase hatchery efficiency.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".