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The role of genetics in shellfish restoration

Published online by Cambridge University Press:  25 November 2006

Patrick M. Gaffney
Patrick M. Gaffney*
Affiliation:
College of Marine Studies, University of Delaware, Lewes, DE 19958, USA
*
[email protected]
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Abstract

Restoration of shellfish populations is becoming an increasingly common practice worldwide, as natural fisheries succumb to pressures of overharvesting, habitat loss or degradation, and challenges from invasive competitors and pathogens. Primary genetic concerns relevant to shellfish restoration projects are reviewed, using the cupped oysters Crassostrea gigas and Crassostrea virginica as case studies. Molecular genetic tools can be used to delineate the geographic distribution of germ plasm diversity at the species and intraspecific levels, enabling more informed selection of genetic material for hatchery breeding and production. Maintenance of genetic variability and prevention of excessive inbreeding in hatchery stocks may be facilitated by the use of genetic markers for regular pedigree monitoring. The effect of hatchery supplementation on the effective population size of a recipient wild population (Ryman-Laikre effect) is reviewed in light of the population biology of bivalve molluscs, and appears to be minimal. Deployment of selected enhancement stocks may be a valuable tool for improvement of degraded wild populations, reversing the negative effects of generations of selective harvesting. Molecular genetic tools can be used effectively to monitor restoration programs, when the discriminatory power of the marker(s) is high and high-throughput scoring methods currently available are used.

Keywords

Effective population sizeGenetic diversityRestorationGenetic monitoringCrassostrea virginicaCrassostrea gigas
Type
Research Article
Information
Aquatic Living Resources , Volume 19 , Issue 3 , July 2006 , pp. 277 - 282
Copyright
© EDP Sciences, IFREMER, IRD, 2006

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References

Allendorf F.W., Leary R.F., 1986, Heterozygosity and fitness in natural populations of animals. In: Soul,, M.E. (Ed.) Conservation Biology. The Science of Scarcity and Diversity, Sunderland, Massachusetts, Sinauer Associates, Inc., pp. 57-76.
Avise, J.C., 1992, Molecular population structure and the biogeographic history of a regional fauna: a case history with lessons for conservation biology. Oikos 63, 62-76. CrossRef
Bert, T.M., 1986, Speciation in western Atlantic stone crabs (genus Menippe): the role of geological processes and climatic events in the formation and distribution of species. Mar. Biol. 93, 157-170. CrossRef
Boudry, P., Heurtebise, S., Lapègue, S., 2003, Mitochondrial and nuclear DNA sequence variation of presumed Crassostrea gigas and Crassostrea angulata specimens: a new oyster species in Hong Kong? Aquaculture 228, 15-25. CrossRef
Boudry, P., Heurtebise, S., Collet, B., Cornette, F., Gerard, A., 1998, Differentiation between populations of the Portuguese oyster, Crassostrea angulata (Lamark) and the Pacific oyster, Crassostrea gigas (Thunberg), revealed by mtDNA RFLP analysis. J. Exp. Mar. Biol. Ecol. 226, 279-291. CrossRef
Buroker, N.E., 1983, Population genetics of the American oyster Crassostrea virginica along the Atlantic coast and the Gulf of Mexico. Mar. Biol. 75, 99-112. CrossRef
Carriker M.R., Gaffney P.M., 1996, A catalogue of selected species of living oysters (Ostreacea) of the world. In: Kennedy V.S., Newell R.I.E., Eble A.F. (Eds.) The Eastern Oyster Crassostrea virginica. College Park, Maryland Sea Grant College, pp. 1-18.
Conover, D.O., 2000, Darwinian fishery science. Mar. Ecol. Prog. Ser. 208, 303-307.
Cunningham C.W., Collins T.M., 1994, Developing model systems for molecular biogeography: vicariance and interchange in marine invertebrates. In: Schierwater B., Streit B., Wagner G.P., DeSalle R. (Eds.), Molecular Ecology and Evolution: Approaches and Applications, Basel, Birkhäuser Verlag, pp. 405-433.
Dillon, R.T Jr., Manzi, J.J., 1987, Hard clam, Mercenaria mercenaria, broodstocks: genetic drift and loss of rare alleles without reduction in heterozygosity. Aquaculture 60, 99-105. CrossRef
Gaffney, P.M., Scott, T.M., 1984, Genetic heterozygosity and production traits in natural and hatchery populations of bivalves. Aquaculture 42, 289-302. CrossRef
Gaffney, P.M., Davis, C.V., Hawes, R.O., 1992, Assessment of drift and selection in hatchery populations of oysters (Crassostrea virginica). Aquaculture 105, 1-20. CrossRef
Gaffney P.M., 1996, Biochemical and population genetics. In: Kennedy V.S., Newell R.I.E., Eble A.F. (Eds.), The Eastern Oyster Crassostrea virginica. College Park, Maryland Sea Grant College, pp. 423-441.
Hare, M.P., Allen, S.K.J., Bloomer, P., Camara, M.D., Carnegie, R.B., Murfree, J., Luckenbach, M., Meritt, D., Morrison, C., Paynter, K., Reece, K.S., Rose, C.G., 2006, A genetic test for recruitment enhancement in Chesapeake Bay oysters, Crassostrea virginica, after population supplementation with a disease tolerant strain. Conservation Genetics 7, 717-734. CrossRef
Heath, D.D., Heath, J.W., Bryden, C.A., Johnson, R.M., Fox, C.W., 2003, Rapid evolution of egg size in captive salmon. Science 299, 1738-1740. CrossRef
Hedgecock D., 1994, Does variance in reproductive success limit effective population sizes of marine organisms? In: Beaumont, A.R. (Ed.) Genetics and Evolution of Aquatic Organisms. Chapman & Hall, London, pp. 122-134.
Hedgecock, D., Chow, V., Waples, R.S., 1992, Effective population numbers of shellfish brood stocks estimated from temporal variance in allelic frequencies. Aquaculture 108, 215-232. CrossRef
Hoover, C.A., Gaffney, P.M., 2005, Geographic variation in nuclear genes of the eastern oyster, Crassostrea virginica Gmelin. J. Shellfish Res. 24, 103-112.
Lapègue, S., Boutet, I., Leitão, A., Heurtebise, S., Garcia, P., Thiriot-Quiévreux, C., Boudry, P., 2002, Trans-Atlantic distribution of a mangrove oyster species revealed by 16S mtDNA and karyological analyses. Biol. Bull. 202, 232-242. CrossRef
Lee, T., Ó Foighil, D., 2004, Hidden Floridian biodiversity: mitochondrial and nuclear gene trees reveal four cryptic species within the scorched mussel, Brachidontes exustus, species complex. Mol. Ecol. 13, 3527-3542. CrossRef
Milbury, C.A., Gaffney, P.M., Meritt, D.W., Newell, R.I.E., 2004, Mitochondrial DNA markers allow monitoring of oyster stock enhancement in the Chesapeake Bay. Mar. Biol. 145, 351-359. CrossRef
Moav, R., Brody, T., Hulata, G., 1978, Genetic improvement of wild fish populations. Science 201, 1090-1094. CrossRef
Naylor, R.L., Goldburg, R.J., Primavera, J.H., Kautsky, N., Beveridge, M.C., Clay, J., Folke, C., Lubchenco, J., Mooney, H., Troell, M., 2000, Effect of aquaculture on world fish supplies. Nature 405, 1017-1024. CrossRef
Nirchio, M., Ron, E., Pérez, J., Gaviria, J.I., 2000, Genetic variation at the leucine aminopeptidase (LAP) locus in Crassostrea virginica from eastern Venezuela. Bol. Inst. Oceanogr. Venezuela, Univ. Oriente 39, 3-10.
Foighil, Ó Gaffney, D. Wilbur, P.M. Hilbish, A.E. T.J., 1998, Mitochondrial cytochrome oxidase I gene sequences support an Asian origin for the Portuguese oyster Crassostrea angulata. Mar. Biol. 131, 497-503. CrossRef
Reeb, C.A., Avise, J.C., 1990, A genetic discontinuity in a continuously distributed species: mitochondrial DNA in the American oyster, Crassostrea virginica. Genetics 124, 397-406.
Rothschild, B.J., Ault, J.S., Goulletquer, P., Héral, M., 1994, Decline of the Chesapeake Bay oyster population: a century of habitat destruction and overfishing. Mar. Ecol. Prog. Ser. 111, 29-39. CrossRef
Ryman, N., Laikre, L., 1991, Effects of supportive breeding on the genetically effective population size. Conserv. Biol. 5, 325-329. CrossRef
Stokes, K., Law, R., 2000, Fishing as an evolutionary force. Mar. Ecol. Prog. Ser. 208, 307-309.
Tanksley, S.D., McCouch, S.R., 1997, Seed banks and molecular maps: unlocking genetic potential from the wild. Science 277, 1063-1066. CrossRef
Wakefield, J.R., Gaffney, P.M., 1996, DGGE reveals additional population structure in American oyster (Crassostrea virginica) populations. J. Shellfish Res. 15, 513.
Waples, R.S., 1998, Separating the wheat from the chaff: patterns of genetic differentiation in high gene flow species. J. Hered. 89, 438-450. CrossRef
Wilbur, A.E., Seyoum, S., Bert, T.M., Arnold, W.S., 2005, A genetic assessment of bay scallop (Argopecten irradians) restoration efforts in Florida's Gulf of Mexico coastal waters (USA). Conserv. Genet. 6, 111-122. CrossRef