Juvenile Masu Salmon Isotope and Condition Data from Spring-fed Tributaries

Data contains site names, sampling years and months, carbon and nitrogen stable isotope ratios of juvenile masu salmon, periphyton and coarse particulate organic matter, and total length, wet weight and condition factor for each fish individual. The dataset was authored by Masaru Sakai and is available under a CC-BY-4.0 license. It was last updated on June 2, 2026.

Use Cases

• Analyze trophic position and food web interactions based on carbon and nitrogen stable isotope ratios.
• Assess fish growth and health across different habitats based on total length, wet weight, and condition factor.
• Compare seasonal habitat use and resource availability based on sampling months and site names.
• Model the role of spring-fed tributaries as thermal refuges based on the described network context.

Strengths

• Includes multiple biological measurements per fish individual, such as length, weight, and condition factor.
• Contains stable isotope data for both fish and their potential food sources (periphyton and coarse particulate organic matter).
• Provides temporal context with sampling years and months.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Masaru Sakai via figshare

Collection Method

Field sampling of juvenile masu salmon and environmental samples, likely from spring-fed tributary–mainstem networks.

Time Range

Specific years and months are recorded per sample but the overall range is not stated.

Freshness

Last updated 2026-06-02 20:47:58; freshness should be verified.

Geography

Site names are recorded, but the specific geographic region is not stated.