Juvenile Alewife Growth and Condition Data from Drought and Non-Drought Years

A dataset supporting a study on drought-induced entrapment of juvenile Alewife (Alosa pseudoharengus) in Bride Lake, Connecticut. The data includes measurements of total length, dry mass, daily age from otoliths, condition index, and daily growth rates for fish sampled during a non-drought year and a prolonged drought year. The 4.2 MB file was authored by Michael N. Burgess and last updated on March 17, 2026.

Use Cases

• Modeling density-dependent growth effects based on comparisons between drought and non-drought years.
• Analyzing changes in body condition index for entrapped late-migrant juveniles.
• Investigating daily growth rate patterns over specific life stages (0-30, 0-100, 70-100 days post-hatch).
• Evaluating the impact of seasonal emigration timing on juvenile size and condition.

Strengths

• Data compares two distinct environmental conditions: a non-drought year and a prolonged drought year.
• Includes multiple growth analysis stanzas (0-30, 0-100, 70-100 days post-hatch).
• Measurements derived from otoliths provide daily age resolution.
• Released under a permissive CC-BY-4.0 license.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The 4.2 MB file size suggests a relatively small dataset.

Provenance

Source

Michael N. Burgess via figshare.

Collection Method

Juvenile Alewife were sampled at the outlet of Bride Lake in East Lyme, Connecticut. Measurements included total length, dry mass, otolith analysis for daily age, and condition index calculation.

Time Range

Covers a non-drought year and a prolonged drought year.

Freshness

Last updated 2026-03-17 13:08:25; freshness should be verified.

Geography

Bride Lake, East Lyme, Connecticut, USA.