Download or read book Life History and Ecology of the Freshwater Clam Corbicula Fluminea written by George Edwin Heinsohn and published by . This book was released on 1958 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biology of Freshwater Corbiculid and Sphaeriid Clams of North America written by Gerry L. Mackie and published by . This book was released on 2007 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population Characteristics and Habitat Use by the Recently Introduced Asiatic Clam Corbicula Fluminea in Lake Whatcom Washington written by Jason Alexander Buehler and published by . This book was released on 2017 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Asiatic Clam (Corbicula fluminea) was found in Lake Whatcom in 2011. This exotic clam is common throughout North America and is spread between watersheds by infested boats, fishing activities, as well as passively by waterfowl. Corbicula fluminea is a well documented invasive species that survives in many environments and exhibits an r-selected life history which can lead to potentially rapid population growth via a clonal reproductive ability typical among invasive bivalves and members of the family Corbiculidae. There are more reproductive strategies in Corbiculidae than any other freshwater bivalve. This rapid growth of a single organism and its associated consumption and excretions can lead to undesired changes in an aquatic ecosystem. Studies have shown a drop in species richness, alterations to algal communities and their availability to other organisms, and water quality changes associated with burrowing, shell accumulation, and clam decomposition. My research included an assessment of the growth of representative Lake Whatcom clam populations during 2012 and 2013 using shellfish surveying methods that have been applied to the marine intertidal environment. Surveying was based on multiple transects with randomly sampled 0.25-square meter quadrats. Three sites were identified that had populations of the clam and were accessible for surveys. These sites were Bloedel Donovan Park in the City of Bellingham, Lakewood, a facility run by Western Washington University, and a small park beach within the community of Sudden Valley. Surveys showed sample areas with 200 or more individual clams per square meter at all three sites. Studies state this density to be indicative of a self-sustaining population for C. fluminea. Some sites exhibited an increase in biomass and size from 2012 to 2013. All sites showed significant changes among some size classes that suggest growth. The sand and fine sediment substrate of the Sudden Valley site hosted significant density increases and biomass increases from 2012 to 2013. The harder rocky substrate of Lakewood hosted multiple size classes but did not show evidence of growth. Bloedel Donovan Park differed from the other sites in that it had a small size class in 2013 that was not present in 2012 suggesting a new generation of clams had reseeded the habitat. The overall environment within Lake Whatcom does not appear to be conducive to extended periods of reproduction based on the presence of distinct size classes. Distinct size classes are representative of specific reproductive windows during the year made available during the warmer months of summer. Density and biomass changed with depth within the nearshore shallows suggesting that the cooler deeper waters of the lake are not as suitable to the clam as the warmer, shallower areas within the littoral zone. Another explanation is less phytoplankton availability due to light limitations imposed by depth. Corbicula fluminea appears to be reproducing to varying degrees at all three sites in this study, and it will likely continue to spread to suitable habitat within Lake Whatcom. Typical impacts associated with the clam should be expected. These include changes in species richness, especially changes in native filter feeder concentration as well as changes to phytoplankton density, and alterations to the seston nutrient load because of burrowing and biological functions associated with C. fluminea

Download or read book The Selective Environment of a Freshwater Clam written by Jukka Jokela (Hydrobiologe) and published by . This book was released on 1993 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Freshwater Clam Corbicula Fluminea in California written by Ellen V. Gleason and published by . This book was released on 1984 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Growth of the Juvenile Freshwater Asiatic Clam Corbicula Fluminea as an Indicator of Sublethal Stress in a Small California Stream written by James Daniel Tull and published by . This book was released on 1989 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Profiles written by C. Lynn Goodwin and published by . This book was released on 1989 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Broadscale Distribution Abundance and Habitat Associations of the Invasive Asian Clam Corbicula Fluminea in the Lower Columbia River USA written by Salvador B. Robb-Chavez and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Asian clam, Corbicula fluminea, is an invasive freshwater bivalve that has established populations across the globe and is known to have deleterious effects on natural and human systems. Yet, despite being present in the Columbia River (CR) for nearly a century, little is known about this invader's basic biology and ecology in this large river system. Thus, we undertook a field study to assess its i) broadscale distribution and abundance, ii) associations with habitat characteristics, and iii) weight-at-length relationship in the lower CR. During 2019-21, C. fluminea were collected from 27 shore-based and 15 mid-channel stations spanning 481 river kilometers (RKM) of the lower CR, along with several habitat characteristics (bank slope, temperature, dissolved oxygen, pH, salinity, conductivity, depth, Secchi depth, chlorophyll-a concentration, river kilometer, and sediment composition). C. fluminea abundance ranged from 0-430 ind. m-2, with the majority of sites containing abundances >100 ind. m-2, located downstream from Bonneville Dam and the majority of sites containing abundances of 0 ind. m-2 located upstream. Generalized linear models predicting the abundance of C. fluminea indicated significantly positive correlations with water temperature, % sand and river kilometer, and negative correlations with bank slope and sedimentary organic material. Clams occurring upstream of Bonneville Dam exhibited greater weight-at-length than those occurring downstream. Our investigation represents the greatest spatial extent at which C. fluminea has been studied in the CR and our results provide a better understanding of the basic biology and ecology of this global invader, as well as providing natural resource managers with information on habitat conditions favorable for this invasive bivalve within temperate river ecosystems.

Download or read book The Population Biology and Physiological Ecology of Corbicula Fluminea M ller in Relation to Downstream Dispersal and Clam Impingement on Power Station Raw Water Systems written by Carol Jean Williams and published by . This book was released on 1985 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Profiles written by Kenneth K. Chew and published by . This book was released on 1987 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book SAMMELBAND VADIANA VMISC QA 2 written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Ecology of a Freshwater Clam Nephronaias Tempisquensis Pilsbry Unionidae in a Seasonal Tropical Environment written by María-Elena Amador-Berrocal and published by . This book was released on 1983 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Freshwater Asian Clam Corbicula Fluminea as a Factor Affecting Nutrient Cycling in the Chowan River written by Diane D. Lauritsen and published by . This book was released on 1983 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biology and Population Dynamics of the Asiatic Clam Corbicula Manilensis Philippi 1841 in the Delta Mendota Canal San Joaquin Valley California written by Larry Lee Eng and published by . This book was released on 1977 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecology written by W. D. Russell-Hunter and published by Elsevier. This book was released on 2013-09-24 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Mollusca, Volume 6: Ecology provides an overview of the state of knowledge in molluscan ecology. It is part of a multivolume treatise that covers the fields of biochemistry, physiology, neurobiology, reproduction and development, evolution, ecology, medical aspects, and structure. The Mollusca is intended to serve a range of disciplines: biological, biochemical, paleontological, and medical. As a source of information on the current status of molluscan research, it should prove useful to researchers of the Mollusca and other phyla, as well as to teachers and qualified graduate students. The book contains 15 chapters, arranged into three levels of ecological perspective: (a) distributional studies; (b) physiological ecology and bioenergetics; and (c) population genetics and dynamics. A discussion of the planetary distribution of and ecological constraints upon the mollusca is followed by separate chapters on the life styles and distribution of mollusks on the deep-sea bottom, in mangroves, and on coral reefs; and the trophic and reproductive ecology of those intrinsically fascinating molluscan groups—the nudibranchs and cephalopods. Subsequent chapters present physiological ecology in land snails and in freshwater bivalves, prosobranchs, and pulmonates, with a survey of the techniques of actuarial bioenergetics as applied to nonmarine molluscs. Other chapters cover population dynamics and biology in an introduced pest species, population genetics of marine molluscs, ecogenetics of land snails, and life-cycle pattems throughout the major molluscan taxa.

Download or read book Growth and Condition of the Invasive Asian Clam Corbicula Fluminea in the Lower Columbia River USA written by Summer J. Henricksen and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Asian clam, Corbicula fluminea, is a broadly distributed and abundant invasive species, yet many aspects of its population biology (e.g., growth and condition in relation to environmental variables) are not well understood. Based on previous research by other investigators, we hypothesized that abundance, population growth rate, and individual growth rate of C. fluminea would increase with temperature, chlorophyll-a, and dissolved oxygen. We sampled C. fluminea at two sites (Kalama and Blurock) in the lower Columbia River (CR), USA. Modal progression analyses indicated a life span of 2-3 years, with new young-of-the-year recruits ( 15 mm), one-year old (13-25 mm), two-year old (20-33mm), and three-year old (30-43mm) clams present. A generalized linear mixed model (GLMM) predicting the abundance of C. fluminea indicated a significant negative association with chlorophyll-a concentration, whereas a GLMM predicting the population growth rate of C. fluminea indicated a significant positive association with dissolved oxygen. The GLMM predicting the individual growth rate of C. fluminea indicated the individual growth rate was not significantly related to any individual environmental variable, however the interaction between temperature and year was significant. The morphological condition (weight at length) of C. fluminea varied significantly between our two sites, with smaller clams (

Download or read book The Ecology of Freshwater Molluscs written by Robert T. Dillon and published by Cambridge University Press. This book was released on 2000-03-09 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: All aspects of the ecology of freshwater molluscs are discussed in this unique volume. Extensively referenced and providing a synthesis of work from the nineteenth century onwards, this book will appeal to professional ecologists, evolutionary biologists and parasitologists interested in these diverse invertebrates.