Abstract
Numerous attempts have been made to restore the declining California abalone fisheries by outplanting of hatchery-produced seed. Poor survival of planted seed has been generally attributed to predation and emigration, lessening enthusiasm for reseeding efforts. We present genetic evidence that one large-scale outplanting of red abalone ( Haliotis rufescens) in southern California was effective, and document changes in the genetic composition of red abalone populations accompanying hatchery propagation. Allozymes appeared to behave as neutral and therefore effective markers for tracking population bottlenecks in hatchery production and reseeded populations. Careful monitoring of hatchery breeding practices is essential for both commercial production and artificial reseeding programs.
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