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Zostera marina population genetics in Barnegat Bay, New Jersey, and implications for grass bed restoration

Content Provider	Springer Nature Link
Author	Campanella, James Joseph Bologna, Paul A. X. Smith, Stephanie M. Rosenzweig, Eric B. Smalley, John V.
Copyright Year	2009
Abstract	Within Barnegat Bay, New Jersey, Zostera marina populations have declined by 62% over the last 20 years, and restoration efforts have met with mixed success. We have completed a microsatellite-based genetic investigation of eight populations of Z. marina within Barnegat Bay to determine whether the genetic stock origins of the plants used in management projects may affect restoration success. Additionally, we assessed the genetic diversity of Z. marina in Barnegat Bay to better understand its population structure. Clonal diversity ranged from 0.70 to 0.95 for the populations studied. Individually, Barnegat Bay populations are not genetically diverse, and there is also little divergence among populations. The Atlantic populations had mean Hobs values (0.20–0.34) that were far lower than the Hexp values (0.69–0.83). Also, the F IS values in all of the eastern populations indicate a surfeit of homozygotes over heterozygotes, suggesting a low degree of outcrossing in the Barnegat Bay populations. Six of the ten populations studied (Ham Island, Manahawkin Bay, Shelter Island, Marsh Elder, Harvey Cedar Sedge, and Long Island) show evidence of historical bottlenecks. Mean estimated F ST values would suggest that most alleles are undergoing moderate genetic differentiation, with values that range from 0.06 to 0.13. Oyster Creek and Sedge Island demonstrate the largest estimated effective population sizes and may be the most appropriate populations for use in future eelgrass restoration projects.
Starting Page	181
Ending Page	190
Page Count	10
File Format	PDF
ISSN	14383896
Journal	Population Ecology
Volume Number	52
Issue Number	1
e-ISSN	1438390X
Language	English
Publisher	Springer Japan
Publisher Date	2009-07-18
Publisher Place	Japan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Eelgrass ecology Genetic diversity Historical bottlenecks Microsatellites Restoration ecology Zostera marina Forestry Behavioural Sciences Evolutionary Biology Plant Sciences Zoology Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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Zostera marina population genetics in Barnegat Bay, New Jersey, and implications for grass bed restoration