Download or read book Genetic Structure of Eelgrass Zostera Marina Within Humboldt Bay California written by Bethany Baibak and published by . This book was released on 2014 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global FST and overall RST values were close to zero implying that the subpopulations in both datasets share many alleles in similar frequency. Pairwise FST comparisons of MRS:ELK and MRS:HBS were slightly significant indicating that there are alleles that are not shared in equal frequency between these subpopulations. Although not statistically significant, some distinctive structure of ELK and MRS was observed in scatterplots in DAPC: this is consistent with their physical isolation within the bay and ecological attributes of each system. In contrast to the lack of structural variability among subpopulations, a large proportion of variability was identified among samples as demonstrated by high levels of clonal richness (R > 0.97), overall heterozygosity (HO = 0.51, HE = 0.53) and allelic richness (5.6 - 7.4). These findings could be due to a combination of plant (e.g., outcrossing) and environmental attributes (e.g., too few generations) that minimize genetic differentiation in the bay. Alternatively, HBN may have lost genetic structure due to disturbances accumulated since 1850 and HBN may be relying on seed dispersal from other areas of the bay, thereby minimizing horizontal genetic structure.

Download or read book Inventory of Eelgrass Zostera Marina L in San Francisco San Pablo Bay written by Sandy Wyllie-Echeverria and published by . This book was released on 1989 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Spatial Model of Eelgrass Zostera Marina Habitat in Humboldt Bay California written by Whelan Gilkerson and published by . This book was released on 2008 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study was conducted to model the extent of eelgrass habitat in Humboldt Bay, California through physical surveys of the maximum depths and upper limits of growth in conjunction with recently acquired high-resolution bathymetry data and supplemental imagery. A combination of chronic turbidity, frequent coastal stratus, and wind-waves, make Humboldt Bay a challenging environment to assess subtidal eelgrass (Zostera marina) habitat from remotely-sensed imagery. Additionally, eelgrass and green algae overlap extensively in shallow intertidal areas, confounding efforts to distinguish between habitat types from imagery alone. A relative exposure index (REI) was developed to identify areas of eelgrass habitat that may be prone to disturbance from wind-waves. Approximately 2200 hectares of eelgrass habitat were identified. Accuracy was assessed at 91% for modeled eelgrass habitat in South Humboldt Bay based on a comparison with hyperspectral imagery captured in October, 2004. Modeling the extent of eelgrass habitat represents an important step towards understanding the extent to which future restoration or mitigation may be possible in Humboldt Bay.

Download or read book Genetic Diversity and Genetic Structure Within and Among Transplanted and Untransplanted Eelgrass Zostera Marina L Beds written by Christopher Adam Davis and published by . This book was released on 1994 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Eelgrass Zostera Marina Structural Complexity written by Lindsay M. Sirota and published by . This book was released on 2005 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Growth and Distribution of Eelgrass Z o s t e r a M a r i n a L in Humboldt Bay California written by Mathew Keller and published by . This book was released on 1963 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Population Genetic Study of the Zostera Marina eelgrass Ecotypes of Barnegat Bay New Jersey and Implications for Grass Bed Restoration written by Stephanie Marie Smith and published by . This book was released on 2007 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Study of the Spatial and Temporal Variation of Eelgrass Zostera Marina Its Epiphytes and the Grazer Phyllaplysia Taylori in Arcata Bay California USA written by Aimee Louise Keiser and published by . This book was released on 2004 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Using a Temperature based GIS Model to Identify Potential Habitat for Zostera Japonica in Humboldt Bay CA written by Andrew Edward Weltz and published by . This book was released on 2012 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Epifaunal Community Structure and Trophic Interactions in Eelgrass Zostera Marina Habitats of San Francisco Bay written by Lindsey Anne Carr and published by . This book was released on 2008 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transplantation of Eelgrass Zostera Marina in San Diego Bay written by Gordon A. Robilliard and published by . This book was released on 1976 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experimental Effects of Ammonium on Eelgrass Zostera Marina L Shoot Density in Humboldt Bay California written by Ginger Tennant and published by . This book was released on 2006 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of Isozyme Variability Within Long Island Sound Populations of Eelgrass Zostera Marina written by Joanna V. Tata and published by . This book was released on 1996 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Intertidal and Subtidal Eelgrass Zostera Marina L Transplant Studies in San Diego Bay California written by Harold Walton Goforth and published by . This book was released on 1980 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seagrass beds are frequently impacted by shallow water marine construction projects. A variety of seagrass transplant methods have been developed with varying degrees of success. Few studies however, have developed methods that are economical or applicable to large scale subtidal and intertidal transplants (i.e., greater than 0.5 hectare). This paper describes the development of a rapid and successful method of revegetating large areas using plugs of vegetative stock transplanted in biodegradable fiber pots. The use of fiber pots improves success by keeping the root-thizome-substrate complex intact, reducing damage during handling, providing a substrate for anaerobic sediment bacteria, and reducing the initial loss of transplants resulting from erosion. A 2.5 year pilot study involving a transplant of 46.5 sq m of subtidal vegetative stock demonstrated success of: 46% for 1,331 sq cm plugs, 35% for 410 sq cm plugs and less than 7% for 182 sq cm plugs. After 1.5 years, the number of emergent rhizomes from the two largest plugs sizes (i.e., 5.5 for 1,331 sq cm plugs and 6.3 for 410 sq cm plugs) were not significantly different (p

Download or read book Research and Monitoring of NERRS Aquatic Ecosystems written by Michael J. Kennish and published by . This book was released on 2008 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Restoration of Eelgrass Zostera Marina L in Estuarine Environments written by R. S. Alberte and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Status of Eelgrass Zostera Marina on the North Atlantic Coast February 1938 written by Clarence Cottam and published by . This book was released on 1938 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: