Did sturgeon ever breed in Britain? Evaluating historical evidence and conservation implications
Name
rsos.260521.pdf
Size
1.89 MB
Format
Adobe PDF
Checksum (MD5)
9a5e07395d89e92331f50851ba66f214
Resource type
Journal article
Date published
July 1, 2026
Abstract
Historical archives can provide unique perspectives on past biodiversity and have the potential to reconstruct life-history cycles for lost populations. Two sturgeon species (Acipenser sturio and A. oxyrinchus) are historically documented from Britain, but evidence for whether sturgeon formerly bred in British rivers has not been systematically evaluated. British sturgeon records mainly sourced from nineteenth- and twentieth-century newspapers contain >10 records from 24 rivers and >50 records from nine rivers, with 196 records from the Severn. River records show strong spring–summer seasonality matching the timing of spawning migrations in extant populations, with multiple individuals often reported together and numerous records of fish in spawning condition. Historical accounts and historical and archaeological specimens document individuals below the size at which young sturgeon leave natal estuaries, and indicate small individuals remained in estuaries outside the spawning period. The species identity of sturgeon mentioned in historical accounts is hard to determine, although most juvenile British specimens probably represent A. oxyrinchus. Assessment of multiple archives provides strong evidence of past sturgeon breeding in many British rivers throughout the nineteenth century and into the twentieth century, establishing a new baseline for interpreting sturgeon as native British species with important implications for their potential reintroduction.
Volume
13
Issue
7
Article number
260521
Publisher
Royal Society
eISSN
2054-5703
Date accepted
May 14, 2026
Rights statement
In Copyright
Additional information
Full text available via the official URL