Download or read book Data Report on the Distribution and Density of Two Eelgrass Species Zostera Marina and Zostera Japonica on Roberts Bank British Columbia written by T. F. Sutherland and published by . This book was released on 2006 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Date Report on the Distribution and Density of Two Eelgrass Species Zostera Marina and Zostera Japonica on Robers Bank British Columbia written by T. F. *Sutherland and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aquatic Monocotyledons of North America written by Donald H. Les and published by CRC Press. This book was released on 2020-05-10 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together information on the natural history, ecology and systematics of North American aquatic monocotyledons. The book is an overview of the biology of major aquatic species by compiling information from numerous sources that lie scattered among the primary literature, herbarium databases, and other reference sources. Information on more than 300 species in 87 genera of monocotyledons will be included. Recent phylogenetic analyses will be incorporated. Although focusing specifically on North America, the cosmopolitan distribution of many aquatic plants should make this an attractive text to people working virtually anywhere outside of the region as well. Key Selling Features: The primary source of natural history information on aquatic plants Comprehensive lists of ecological associates Synthetic overview of systematic relationships of aquatic species and genera Practical information for rare and invasive plant managers Essential guide to facilitate wetland delineation
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 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:
Download or read book Supplementary Bibliography on Eelgrass Zostera Marina written by C. Peter McRoy and published by . This book was released on 1968 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bibliography lists 204 references on eelgrass to supplement an earlier list (Special Scientific Report--Wildlife No. 79) issued in 1964.
Download or read book The Population Biology of Two Intertidal Seagrasses Zostera Japonica and Ruppia Maritima at Roberts Bank British Columbia written by Richard Ernest Bigley and published by . This book was released on 1981 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physiological Factors Affecting the Distribution of the Non indigenous Seagrass Zostera Japonica Along the Pacific Coast of North America written by Deborah Joyce Shafer and published by . This book was released on 2007 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Habitat Population and Leaf Characteristics of Zostera Marina L on Roberts Bank British Columbia written by Robert Moody and published by 1978.. This book was released on 1978 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Extent Density and Biomass Carbon of Eelgrass Zostera Marina Meadows in Clayoquot Sound British Columbia written by Aimee McGowan and published by . This book was released on 2018 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seagrass habitats have recently been characterized by their ability to capture and store organic carbon, known as 'blue carbon.' However, the geospatial extent and carbon storage capacity of these habitats are largely unknown on the Pacific Coast of Canada. This research quantified the areal extent of three eelgrass (Zostera marina) meadows in southern Clayoquot Sound on the Pacific Coast of Canada using remote sensing technologies and assessed the above- and belowground biomass (AGB; BGB) and living carbon content of the intertidal and subtidal zones. AGB estimates ranged from 11 ± 4 to 92 ± 51 g DW m-2, which translated into carbon stocks of 4 ± 1 to 33 ± 18 g C m-2 and are consistent with global estimates for Z. marina. BGB estimates were much lower than values for Z. marina in other regions (45 - 285 g DW m-2), ranging from 5 ± 4 g DW m-2 (2 ± 1 g C m-2) to 26 ± 20 g DW m-2 (9 ± 7 g C m-2). Low BGB in Clayoquot Sound is likely a response to sub-optimal environmental conditions, resulting in the eelgrass' shallow root system. The intertidal zone of two of our meadows, Robert Point (22,414 m2) and Grice Bay (186,468 m2), made up approximately 70% of their total meadow area (31,886 m2 and 261,667 m2, respectively), whereas the subtidal dominated at Kennedy Cove (4,318 m2), making up 80% of the meadow (5,343 m2). Mapping the intertidal and subtidal portions of each meadow allowed for biomass and living carbon estimates to be scaled up to their respective zone. After accounting for the size of each meadow, the more marine-influenced meadows, Robert Point and Kennedy Cove, had significantly higher density, biomass, and living carbon content values. Given the scarcity of data available on the extent of eelgrass meadows in Canada, regionally specific quantification of these habitats' areal extent, biomass, and carbon storage dynamics are required to accurately assess seagrasses climate change mitigation potential.
Download or read book Eelgrass Zostera Marina Ecosystems in Eastern Canada and Their Importance to Migratory Waterfowl written by Mélanie-Louise Leblanc and published by . This book was released on 2022 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Seagrasses are marine flowering plants that create some of the most productive coastal habitats globally and play a key role in the functioning of nearshore ecosystems. The most common seagrass genus in Canada is Zostera and the species Zostera marina (eelgrass) is the predominant seagrass in intertidal and subtidal shoreline zones along the Atlantic, Pacific, and eastern James Bay coasts. Eelgrass has specific habitat requirements, with growth and productivity optimized within particular ranges of salinity, temperature, light availability, and nutrient concentrations. Large eelgrass meadows can impact nearshore environments by filtering the water column, stabilizing sediment, buffering shorelines, and providing habitat for various marine and coastal species, including commercially important species like Atlantic cod (Gadus morhua) and lobster (Homarus americanus). Eelgrass is also a vital food resource for migratory waterfowl, notably Canada Geese (Branta canadensis), Pacific Black Brant (Branta bernicla nigricans), and Atlantic Brant (Branta bernicla hrota). Despite their ecological importance, seagrasses are among the most vulnerable coastal ecosystems on the planet. The global loss of seagrass has been linked to a variety of human activities, including pollution, invasive species, and catchment modifications. There is an urgent need to improve monitoring of seagrass responses to environmental change, better document the importance of seagrass meadows to species reliant on them for food and habitat, and advance effective management and conservation of seagrass ecosystems. In this thesis, I investigated the spatiotemporal dynamics of eelgrass meadows in eastern Canada and the importance of eelgrass as a food source for migratory waterfowl, using remote sensing data, long-term monitoring data (biomass, density, and cover), and field observations. In Chapter 3, I used a novel cost-efficient approach for satellite imaging time-series to examine changes in eelgrass distribution and abundance from 1984 to 2017 in a wetland of international importance in northeastern New Brunswick. With minimal ground truth data, the novel time-series approach revealed a slow and steady decline in eelgrass abundance in some areas of the estuary. In contrast, other areas were characterized by highly dynamic shifts in eelgrass cover over time. I demonstrated how time-series analysis can be used to identify potential drivers of seagrass change and the benefits of including time-series analysis in seagrass monitoring programs. In Chapter 4, I contributed to advancing knowledge of migratory waterfowl stopover behaviour by examining the influence of eelgrass and human activities on Canada Geese habitat selection. Combining field observations of Canada Geese and the eelgrass distribution maps produced in Chapter 3, I found that Canada Geese selected areas with high eelgrass availability during periods of low human disturbance, which emphasized the importance of eelgrass as a food source during the fall migration. However, higher levels of human disturbance led to a redistribution of geese away from dense eelgrass meadows. In Chapter 5, I presented new insights into the recent and current state of eelgrass along the eastern coast of James Bay after a drastic and large-scale decline in the late 1990s. By aggregating, synthesizing, and analyzing long-term monitoring data and current surveys, spanning 1982 - 2020, I provided the first quantitative evidence that changes in eelgrass biomass in northeastern James Bay may reflect synergistic impacts of climate change and altered freshwater discharge regimes. Overall, this thesis advances understanding of how temperate and subarctic Zostera marina ecosystems and associated fauna respond to coastal development and climate change"--
Download or read book Comprehensive Bibliography of Zostera Marina written by Ronald C. Phillips and published by . This book was released on 1964 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book World Atlas of Seagrasses written by Frederick T. Short and published by Univ of California Press. This book was released on 2003 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seagrasses are a vital and widespread but often overlooked coastal marine habitat. This volume provides a global survey of their distribution and conservation status.
Download or read book Eelgrass Zostera Marina Locations in Newfoundland and Labrador written by Anuradha S. Rao and published by . This book was released on 2014 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigating Perennial Annual Eelgrass Zostera Marina L in Padilla Bay as Potential Donor Sources for Seed based Restoration written by Yuki Wilmerding and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper explores recovery of eelgrass (Zostera marina L.) meadows through seed-based restoration to address declines from natural and anthropogenic disturbances. The study focuses on the Joe Leary meadow site in Padilla Bay, Washington, aiming to (1) determine the spatial distribution of perennial and annual Z. marina, (2) understand variation in flowering shoot density and potential seed production, and (3) compare the phenology of flowering shoots. These objectives were investigated using field-based methods to collect presence/absence transect data for delineation, quadrat-based count data, and monitor seed development. Data collection occurred in the summer throughout the flowering life stage of eelgrass in the site. The study found spatial and temporal variation in the distribution, density, and phenology of flowering perennial and annual populations. Delineation methods revealed that annuals have a similar range in the intertidal as perennials, with differences highlighted in response to potential stress indicators such as proximity to the slough, algal mats, or elevation. Quadrat-based monitoring found annual shoots in the transect higher in the intertidal, above the perennial population. Phenology data indicated that perennial shoots flower about a month prior to annual shoots. While the study advises against using perennial flowering shoots for restoration due to low densities, it emphasizes Joe Leary's potential as a donor site for flowering annuals for seed-based restoration. Careful considerations are crucial to avoid unintended introductions of non-native species. The research concludes with recommendations for refining delineation methods, enhancing understanding of eelgrass population dynamics, and optimizing seed collection strategies for genetically diverse and resilient restoration in the face of climate change.
Download or read book The Effect of Sea Level Rise on Eelgrass Distributions in Boundary Bay written by and published by . This book was released on 1992 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantitative information on the effects of mean sea level variations on intertidal regions is required in light of their importance to coastal ecosystems. One of the areas most sensitive to sea level variations are the eelgrass beds in Boundary Bay near Vancouver. These plants (Zostera marina and Z. japonica) generally populate the outer limits of the intertidal region, requiring periods of both exposure and submergence over the tidal cycle. This report presents results of a study to determine the change in area in Boundary Bay that would be available for colonization by the two species of Zostera for expected values of mean sea level rise. The study employed coupled tidal models for Boundary Bay and the Strait of Georgia, using exposure duration as the single criterion for eelgrass occurrence.
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:
