Cobia Growth and Gene Expression Under Blue and Green Light

A 21.3 KB document details a four-week study on juvenile cobia (Rachycentron canadum) exposed to different light wavelengths. Compared to natural light, blue and green light increased body weight by 27.6% and 23.2%, respectively, and upregulated specific genes related to appetite and lipid synthesis. The dataset, authored by Yafan Zhu and last updated in May 2026, is shared under a CC-BY-4.0 license.

Use Cases

• Analyze the relationship between specific light wavelengths (466 nm blue, 518 nm green) and fish growth metrics like body weight and specific growth rate.
• Study wavelength-dependent gene expression patterns for visual opsins, appetite peptides (npy, pomc), and lipogenesis markers (fas) in cobia.
• Investigate the role of extraretinal photoreception in growth regulation by comparing transcript levels in the diencephalon versus the retina.
• Explore spectral optimization strategies in aquaculture as a non-invasive tool to enhance production.

Strengths

• Specific growth metrics are provided, including a 27.6% body weight increase under blue light and a 23.2% increase under green light.
• The study design is clearly described, involving controlled exposure to three light conditions over four weeks.
• Gene-level findings are detailed, linking specific wavelengths to transcript levels of neuropeptide Y (npy), pro-opiomelanocortin (pomc), and fatty acid synthase (fas).

Limitations

• The dataset is a 21.3 KB document; the underlying raw data (e.g., column-level measurements, row counts) is not directly accessible.
• Description metadata is limited; actual data quality requires manual inspection after download.
• The temporal and geographic scope of the underlying experiment is not specified beyond the four-week study duration.

Provenance

Source

figshare

Collection Method

Experimental study exposing juvenile cobia to blue, green, or natural light for four weeks.

Time Range

The experiment lasted four weeks; specific study dates are unknown.

Freshness

Last updated 2026-05-12 04:20:19; freshness should be verified.