Download or read book Relationships Between Dynamic Nearshore Processes and Beach Changes Within the Intertidal Zone of Napatree Beach Rhode Island written by Peter P. Sakalowsky and published by . This book was released on 1972 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relationships Between Dynamic Nearshore Processes and Beach Changes Within the Intertidal Zone of Napatee Beach Rhode Island written by Peter P. Sakalowsky (Jr) and published by . This book was released on 1972 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relationships Between Dynamic Nearshore Processes and Beach Changes at Napatree Beach Rhode Island written by Wayne John Coddington and published by . This book was released on 1976 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalog of Copyright Entries Third Series written by Library of Congress. Copyright Office and published by Copyright Office, Library of Congress. This book was released on 1977 with total page 1480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Professional Paper written by and published by . This book was released on 1976 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Bay Bib written by Anthony Bucci and published by . This book was released on 1979 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Perceptual Delimitation of Southern Indiana written by James K. Good and published by . This book was released on 1976 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalog of Copyright Entries Third Series written by Library of Congress. Copyright Office and published by . This book was released on 1975 with total page 1480 pages. Available in PDF, EPUB and Kindle. Book excerpt: The record of each copyright registration listed in the Catalog includes a description of the work copyrighted and data relating to the copyright claim (the name of the copyright claimant as given in the application for registration, the copyright date, the copyright registration number, etc.).
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1973 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalogue of Title entries of Books and Other Articles Entered in the Office of the Librarian of Congress at Washington Under the Copyright Law Wherein the Copyright Has Been Completed by the Deposit of Two Copies in the Office written by Library of Congress. Copyright Office and published by . This book was released on 1977 with total page 1500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Dissertation Index 1861 1972 Geography and geology written by Xerox University Microfilms and published by . This book was released on 1973 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book South Shore State of Rhode Island Beach Erosion Control Study written by and published by . This book was released on 1950 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Sedimentary Petrology written by and published by . This book was released on 1993 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beach Changes at Misquamicut Beach Rhode Island 1962 1973 written by Robert W. Morton and published by . This book was released on 1984 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beach profile data were collected at profile lines on Misquamicut Beach between November 1962 and June 1973. The data were examined for temporal and spatial patterns and variability along the beach face, as well as to identify and assess the forces which influence beach behavior. Misquamicut represents a typical barrier beach. It is sheltered from all directions except the south and southeast with wave climate modified by Fisher's Island, Long Island, and Block Island. Nearshore bathymetry and a submarine trough in Block Island Sound also modify the wave pattern and intensity. The focusing of energy varies depending on wave direction, but is generally most intense in the center of the beach. Regression analyses on above mean sea level volume versus time indicate a net accretional trend on the beach. There appears to be a seasonal pattern to erosion/accretion cycles on Misquamicut Beach. In general, erosion is accelerated from late autumn to early spring, principally as a result of winter storm events, while accretion occurs from late spring to early fall. However, nonseasonal storm events frequently interrupt and obscure this pattern. The beach responds in a similar manner to most storms regardless of the direction of the storm track. The average above mean sea level volume changes attributable to storms range from 5 to 10 cubic meters per meter of beach length, which is small in comparison to open ocean beaches (as those studied on Cape Cod) where changes were frequently on the order of 50 cubic meters per meter.
Download or read book Shoreline Armoring Disrupts Marine terrestrial Connectivity Across the Nearshore Ecotone written by Sarah M. Heerhartz and published by . This book was released on 2013 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the interface between land and sea, the nearshore (marine-terrestrial) ecotone converges at the intertidal zone, where the exchange of organic materials between ecosystems occurs in the form of beach wrack: piles of seaweed, seagrass, and terrestrial plant debris suspended in water and deposited on shore as the tide ebbs. The ecological significance of algal and seagrass wrack subsidies has been well-documented for exposed-coast sandy beaches but is relatively unstudied in lower-energy and mixed-sediment beaches. In the nearshore ecotone where beaches are fringed with riparian vegetation, the potential for reciprocal subsidies between marine and terrestrial ecosystems exists. Human modification also occurs within this ecotone, particularly in the form of armoring structures for bank stabilization that physically disrupt the connectivity between ecosystems. I conducted detailed surveys of beach physical parameters, wrack and log accumulations, and supralittoral invertebrates in spring and fall over 3 years at 29 armored-unarmored beach pairs, and behavioral observations of juvenile salmon (Oncorhcynchus spp.) and birds at 6 pairs in Puget Sound, WA, USA. Armoring lowered the elevation of the interface between marine and terrestrial ecosystems and narrowed the width of the intertidal transition zone. Armored beaches had substantially less wrack overall and a lower proportion of terrestrial plant material in the wrack, while marine riparian zones (especially trees overhanging the beach) were an important source of wrack to unarmored beaches. Armored beaches also had far fewer logs in this transition zone. Invertebrate assemblages were significantly different between armored and unarmored beaches. Unarmored invertebrate assemblages were characterized by talitrid amphipods and adult and larval dipteran and coleopteran insects (flies and beetles, including some types that have been shown to contribute to juvenile salmon diets in other studies) and correlated with the amount of beach wrack and logs, the proportion of terrestrial material in wrack, and the maximum elevation of the beach. Shoreline type (armored or unarmored) influenced juvenile salmon distribution, however their feeding rates were relatively high at all sites, thus decreased prey availability (i.e. fewer marine riparian and/or wrack-associated insects) or altered prey resources are likely the most detrimental effects of armoring on these fish in the nearshore ecotone. Terrestrial birds, particularly Song Sparrows (Melospiza melodia) were commonly observed foraging among beach wrack and logs at unarmored beaches, but were largely absent from armored beaches. Based on my results, I developed a conceptual model summarizing marine-terrestrial connections across the nearshore ecotone and the disruptive effects of armoring. This study demonstrates that shoreline armoring disrupts marine-terrestrial connectivity, affecting the amount and type of organic material delivered to the nearshore ecotone in the form of wrack and logs, the abundance and taxonomic composition of supralittoral invertebrates, and the distribution and behavior of secondary consumers (juvenile salmon and birds). The results of my dissertation provide new information on relationships between physical and biological variables in the nearshore ecotone and connections between marine and terrestrial ecosystems that may be useful in informing conservation, restoration, and management actions.
Download or read book Nearshore Processes Influencing Larval Distributions and Coastal Population Dynamics Along an Upwelling Coast written by Erin Vera Satterthwaite and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An enhanced understanding of the processes that influence coastal populations is central to our understanding of life in the sea and effective marine management. Since many benthic marine species have a dispersing, larval phase, processes affecting both the larval and benthic, adult phases are important in structuring populations. Thus, elucidating key processes affecting population dynamics requires a comprehensive understanding of nearshore, coastal, and benthic processes. In addition, along coasts influenced by upwelling, populations are often considered to be recruitment-limited, thus processes acting on the larval phase are essential in influencing nearshore population dynamics. Consequently, understanding the sources of variability in reproductive output, larval transport, supply and recruitment are integral to the dynamics, structure and effective management of marine populations and communities. In this dissertation, I investigated the effect of nearshore processes on invertebrate larval distributions, reproduction, and recruitment along the California coast, which is characterized by upwelling and relaxation dynamics during the spring and summer. Seasonal variation in upwelling and relaxation dynamics influence dispersal and recruitment. In Chapter 1, I investigated the effects of seasonal variation in nearshore physical oceanography on invertebrate larval distributions in the upwelling-dominated region of northern Monterey Bay, California. I characterized the physical oceanographic factors in summer and fall and related these to the invertebrate larval assemblage. I found that water types differed seasonally in temperature, salinity, stratification, and chlorophyll-a fluorescence with a corresponding shift in the composition and abundance of invertebrate larvae in the meroplankton assemblage. This suggests that relationships between larval taxa, life history characteristics, and water types could provide insights into water mass history, circulation, and larval recruitment, in highly dynamic upwelling regions. Physical oceanography coupled with sites of larval release and depth regulation by larvae influence larval distribution patterns. In Chapter 2, I explored the cross-shore and depth distribution patterns of larvae in northern Monterey Bay. Larvae of nearshore species predominately occurred near the bottom and in the inner bay, and larvae of offshore taxa occurred near the bottom and offshore, often associated with offshore water masses. In addition, taxa with similar adult habitat and depth distributions co-occurred in larval samples. Thus, aspects of the entire life history, such as adult habitat distribution, must be considered when attempting to elucidate drivers of larval transport, larval supply and population dynamics of benthic marine organisms. Since larval dispersal can lead to the spatial decoupling of reproduction and recruitment, elucidating the key factors affecting the relationship between reproduction and recruitment, known as the stock-recruitment relationship, is key for predicting recruitment to coastal populations. In Chapter 3, I measured reproductive output and recruitment in a model intertidal crab, Petrolisthes cinctipes, metapopulation along the California coast and compared reproduction and recruitment to wave exposure, habitat quality (grain size), and habitat sizes of each site. I found that wave exposed sites had more habitat and lower densities of recruits. Wave exposure did not influence the quality of habitat, which influenced the density of reproductive females. Thus, metapopulation dynamics were affected by both wave exposure, through its effect on habitat size and recruitment, and habitat quality, through its effect on reproduction. Consequently, the relationship between nearshore hydrodynamics that create and maintain quality coastal habitat patches and deliver larvae to shore is a key question in source-sink dynamics of marine metapopulations and stock-recruitment relationships. These results help to advance our understanding of how nearshore oceanographic processes, habitat characteristics, and life history affect variation in demographic rates of marine populations in upwelling systems. A comprehensive understanding of the processes regulating populations, both in the plankton and benthos, has implications for advancing fundamental ecological and evolutionary questions pertaining to marine populations and communities, along with improving marine resource conservation and management.
Download or read book Alternative Policies for Protecting Barrier Islands Along the Atlantic and Gulf Coasts of the United States and Draft Environmental Statement written by and published by . This book was released on 1979 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
