Download or read book Biological and Physiological Condition of Juvenile California Halibut Paralichthys Californicus Exposed to a Contamination Gradient in Mission Bay CA written by Kevin Stolzenbach and published by . This book was released on 2015 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contaminated sediments in marine environments have been shown to be good indicators of ecological risk and a means to assess anthropogenic impacts on marine habitats and the animals that inhabit them (Long et al. 1995, Rattner 2009). Estuarine sediments are especially complex media with regard to physical, chemical, and biological characteristics that trap, store, modify and sometimes release contaminants to the biota (Long et al. 1995). Especially vulnerable are animals that are in constant contact with the sediments, such as flatfishes that partially bury themselves for camouflage (Costa et al. 2011). Impacts can be assessed in a number of ways, one of which involves measuring biomarkers, changes in biological responses ranging from molecular through cellular and physiological responses to behavioral modifications that can be related to the magnitude and duration of exposure (van der Oost et al. 2003). Examining the effects of contaminants on fishes in complex environments requires using multiple biomarkers, which is why a preferred method in areas with sublethal concentrations of contaminants is to use a combined biomarker index to quantify impacts (Sole et al. 2010, Pereira et al. 2010a, b). Juvenile California halibut (Paralichthys californicus) use bays and estuaries as nursery habitats during their first year of life (Forrester and Swearer 2002, Fodrie and Mendoza 2006, Fodrie and Herzka 2013). Studies of young halibut show that they prefer shallow areas with fine sediments and gradually move into deeper, sandier habitats as they grow (Fodrie and Herzka 2008, Lopez-Rasgado and Herzka 2009). In Mission Bay, San Diego, higher concentrations of multiple inorganic and organic contaminants have been found in the back bay (which is shallow with fine sediment and receives input from storm water outfalls) and in boat basins, although not at levels that are acutely fatal to juvenile halibut (Stransky 1999). Some contaminants of interest in Mission Bay are heavy metals (Cu, Pb, Zn) and compounds associated with anthropogenic inputs, like petroleum hydrocarbons, pesticides and other organic contaminants that have the potential to bioaccumulate. The purpose of this project was to compare contaminant concentrations in sediments to liver, kidney and gill biomarkers in juvenile California halibut caught in different parts of Mission Bay to examine relationships between the distribution of contaminants in Mission Bay and physiological condition of juvenile halibut.
Download or read book The Ecology of Humboldt Bay California written by Roger A. Barnhart and published by . This book was released on 1992 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Successes Limitations and Frontiers in Ecosystem Science written by Michael L. Pace and published by Springer Science & Business Media. This book was released on 2013-12-01 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecosystem research has emerged in recent decades as a vital, successful, and sometimes controversial approach to environmental science. This book emphasizes the idea that much of the progress in ecosystem research has been driven by the emergence of new environmental problems that could not be addressed by existing approaches. By focusing on successes and limitations of ecosystems studies, the book explores avenues for future ecosystem-level research.
Download or read book The Ecology of Eelgrass Meadows in the Pacific Northwest written by Ronald C. Phillips and published by . This book was released on 1985 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine and Coastal Systems of the Quoddy Region New Brunswick written by Martin Lewis Hall Thomas and published by . This book was released on 1983 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book describes the main marine and coastal biological systems of Passamaquoddy Bay and adjacent waters and the oceanographic and meteorological characteristics of the area. Subject areas begin with meteorolgy and oceanography. The second group covers the intertidal systems with chapters on rocky intertidal shores, rock pools, coarse sedimentary shores and salt marshes. The third general section covers hard and sedimentary sublittoral habitats. Following chapters discuss pelagic systems under the headings fishes, phytoplankton, larger zooplankton, and microzooplankton. Three chapters deal with the birds, amphibians and reptiles, and marine mammals. Finally coastal vegetation is described.
Download or read book San Francisco Bay Plan written by San Francisco Bay Conservation and Development Commission and published by . This book was released on 1969 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gulf of the Farallones National Marine Sanctuary Management Plan written by and published by . This book was released on 1987 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coastal Remote Sensing written by Coastal Services Center (U.S.) and published by . This book was released on 2003 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Wildlife Refuge System Improvement Act of 1997 written by and published by . This book was released on 1999 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Barrio Logos written by Raúl Homero Villa and published by University of Texas Press. This book was released on 2009-03-06 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Struggles over space and resistance to geographic displacement gave birth to much of Chicano history and culture. In this pathfinding book, Raúl Villa explores how California Chicano/a activists, journalists, writers, artists, and musicians have used expressive culture to oppose the community-destroying forces of urban renewal programs and massive freeway development and to create and defend a sense of Chicano place-identity. Villa opens with a historical overview that shows how Chicano communities and culture have grown in response to conflicts over space ever since the United States' annexation of Mexican territory in the 1840s. Then, turning to the work of contemporary members of the Chicano intelligentsia such as Helena Maria Viramontes, Ron Arias, and Lorna Dee Cervantes, Villa demonstrates how their expressive practices re-imagine and re-create the dominant urban space as a community enabling place. In doing so, he illuminates the endless interplay in which cultural texts and practices are shaped by and act upon their social and political contexts.
Download or read book Fishermen s Contingency Fund written by United States. National Marine Fisheries Service and published by . This book was released on 1985 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tidal Marsh Restoration written by Charles T. Roman and published by Island Press. This book was released on 2012-08-07 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many coastal tidal marshes have been significantly degraded by roadways and other projects that restrict tidal flows, limiting their ability to provide vital ecosystem services including support of fish and wildlife populations, flood protection, water quality maintenance, and open space. Tidal Marsh Restoration provides the scientific foundation and practical guidance necessary for coastal zone stewards to initiate salt marsh tidal restoration programs. The book compiles, synthesizes, and interprets the current state of knowledge on the science and practice of salt marsh restoration, bringing together leaders across a range of disciplines in the sciences (hydrology, soils, vegetation, zoology), engineering (hydraulics, modeling), and public policy, with coastal managers who offer an abundance of practical insight and guidance on the development of programs. The work presents in-depth information from New England and Atlantic Canada, where the practice of restoring tidal flow to salt marshes has been ongoing for decades, and shows how that experience can inform restoration efforts around the world. Students and researchers involved in restoration science will find the technical syntheses, presentation of new concepts, and identification of research needs to be especially useful as they formulate research and monitoring questions, and interpret research findings. Tidal Marsh Restoration is an essential work for managers, planners, regulators, environmental and engineering consultants, and others engaged in planning, designing, and implementing projects or programs aimed at restoring tidal flow to tide-restricted or diked salt marshes.
Download or read book Global Coastal Change written by Ivan Valiela and published by John Wiley & Sons. This book was released on 2009-03-12 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global Coastal Changeprovides a comprehensive overview of the environmental factors changing the marine systems of the world including atmospheric changes, sea level rise, alterations in freshwater and sediment use and transport, toxins, overfishing, alien species, and eutrophication. Includes case studies providing real-world examples, detailed reviews of the evidence of changes and possible solutions. Brings together a wealth of important information about our changing marine environments. An invaluable reference for upper level undergraduates, graduates, and professionals interested in marine environmental science.
Download or read book Conservation Science in Mexico s Northwest Ecosystem Status and Trends in the Gulf of California written by Elisabet V. Wehncke and published by . This book was released on 2014-01-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fish and Fisheries at Higher Altitudes written by T. Petr and published by Food & Agriculture Org.. This book was released on 1999 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thirteen papers presented in this publication review fish stocks and fisheries of mountainous areas of Asia: Himalayas (Bhutan, Nepal, northern states of India within the Himalayas), Western Ghats (India), Karakoram-Hindu Kush (Pakistan, Afghanistan), Pamir (Tajikistan), Tien Shan (Kyrgyzstan, Kazakhstan), Altai (Kazakhstan, Mongolia, China), high altitude lakes of Mongolia and those of western China (provinces of Qinghai and Xinjiang [Uighur Autonomous Region] and Xizang [Tibet Autonomous Region]) and Caucasus (Armenia, Georgia, Azerbaijan). From south to north, fish fauna complexes change from Oriental to Palaearctic. Cool and coldwater streams and rivers support subsistence and/or recreational/sport fisheries, with commercial fisheries practised only in some lakes and reservoirs. While fishing of streams and rivers is largely unmanaged, considerable management effort has gone into some lakes and reservoirs, especially in Kazakhstan, Kyrgyzstan and India in order to maintain reasonably high fish catches. The management measures have included translocation and stocking of exotic fish species and regulation of fisheries. For recreational fishery, brown trout has been stocked in rivers and streams of the southern slopes of Himalayas, rainbow trout in some streams of Western Ghats ... etc.
Download or read book Restoration of Injured Natural Resources written by and published by . This book was released on 2002 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Mediterranean Sea in the Era of Global Change 1 written by Christophe Migon and published by John Wiley & Sons. This book was released on 2020-02-19 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to its particular characteristics, the Mediterranean Sea is often viewed as a microcosm of the World Ocean. Its proportionally-reduced dimensions and peculiar hydrological circulation render it susceptible to environmental and climatic constraints, which are rapidly evolving. The Mediterranean is therefore an ideal site to examine, in order to better understand a number of key oceanographic phenomena. This is especially true of the Ligurian Sea where, due to its geology, oceanic conditions are found close to the coast. As such, 30 years ago, an offshore time-series site provided a fresh impetus to a long history of marine biology research, which has generated a very important body of data and knowledge. This is the first volume, in a two-volume series, that summarizes this research. Across these two books, the reader will find 13 chapters that examine the geology, physics, chemistry and biology of the Ligurian Sea ? always with the goal of providing key elements of oceanography in a changing world.
