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Genetic characterization of the burrowing shrimp (Neotrypaea californiensis) in Washington and Oregon estuaries
Citation:
Doan, M., V. Chaidez, T. H. DEWITT, A. D'Andrea, B. Dumbauld, AND L. Parr. Genetic characterization of the burrowing shrimp (Neotrypaea californiensis) in Washington and Oregon estuaries. Presented at Pacific Estuarine Research Society 2008 Meeting, Newport, OR, February 28 - March 01, 2008.
Impact/Purpose:
The Ghost shrimp, (Neotrypaea californiensis) are burrowers, which have a wide demographic distribution along the United States Pacific Coast.
Description:
The Ghost shrimp, (Neotrypaea californiensis) are burrowers, which have a wide demographic distribution along the United States Pacific Coast. Our study used genetic analysis to estimate the source populations of larvae recruiting into estuaries to allow a greater understanding of the life history of this Pacific coast species. We sequenced the cytochrome c oxidase subunit I gene (COI) of the mitochondrial DNA to evaluate the genetic variation of burrowing shrimp populations along coastal estuaries. Analysis of molecular variance of sequence data of 752 adult individuals collected from seventeen locations ranging from Puget Sound, Washington to San Diego, California revealed high genetic variations, suggesting a high level of gene flow among the estuaries with an absence of estuary specific lineages population structures. Haplotype analyses indicated the highest COI genetic variations in Oregon estuaries. Statistical mismatch analysis of population variability indicates stable populations since the most recent glacial period.