Download or read book Mercury Concentrations in Yellow Perch Perca Flavescens from 24 Lakes at Kejimkujik National Park Nova Scotia written by Jennifer A. Carter and published by [Halifax, N.S.] : Parks Canada. This book was released on 2001 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: As part of a wider study on the bioaccumulation & ecological effects of mercury in freshwater fish & wildlife in Canada, this study measured total mercury in yellow perch from 24 lakes in Nova Scotia. The objectives of the study were to assess mercury concentrations in prey of common loons, which themselves have high mercury levels, and to determine which environmental factors were associated with differences in fish mercury concentrations from lake to lake. Results presented include mean perch mercury concentration & concentration range, correlations of fish characteristics with whole-fish mercury concentrations, and correlations of water chemistry parameters with fish mercury concentrations.
Download or read book Mercury Concentrations in Brook Trout and White Perch from Kejimkujik National Park Nova Scotia written by André D'Entremont and published by Halifax, N.S. : Parks Canada, Atlantic Region. This book was released on 1998 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study examines fillet mercury levels in brook trout (Salvelinus fontinalis) and white perch (Morone americana) collected from water bodies in Kejimkujik National Park. Mercury levels found in these species, important components of the local recreational fishery, are compared to those observed in other North American studies and to Health Canada guidelines regarding safe consumption of fish. Correlations are identified between total mercury concentrations and fish age, length, and weight. Differences in mean mercury concentrations among sampling locations are also noted, and possible sources of the mercury contamination are discussed.
Download or read book Limnology and Aquatic Birds written by Alan R. Hanson and published by Springer Science & Business Media. This book was released on 2009-03-20 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long-term population monitoring is an important tool in our investigations of the role waterbirds play in their environment. This book is international in scope and presents information on species as diverse as the Common Loon, Harlequin Duck, and Semi-Palmated Sandpiper, and habitat in locations ranging from Iceland to Japan. Papers presented in this volume further our understanding of the important role that limnology plays in determining habitat suitability for waterbirds.
Download or read book Environmental Chemistry and Toxicology of Mercury written by Guangliang Liu and published by John Wiley & Sons. This book was released on 2011-11-07 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the fundamentals, recent developments, and future research needs for critical mercury transformation and transport processes, as well as the experimental methods that have been employed in recent studies. The coverage discusses the environmental behavior and toxicological effects of mercury on organisms, including humans, and provides case studies at the end of each chapter. Bringing together information normally spread across several books, this text is unique in covering the entire mercury cycle and providing a baseline for what is known and what uncertainties remain in respect to mercury cycling.
Download or read book Effects of Methylmercury on the General Health of Wild Fish in Kejimkujik National Park Nova Scotia written by Stephanie Graves and published by . This book was released on 2016 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Kejimkujik National Park and National Historic Site (KNPNHS), Nova Scotia is considered a biological mercury (Hg) hotspot because the yellow perch (Perca flavescens) and common loons (Gavia immer) inhabiting the lakes frequently exceed 'safe' levels of Hg. In this study, the relationship between Hg and overall health of three forage fish species (brown bullhead Ameirus nebulosus, banded killifish Fundulus diaphanus and golden shiner Notemigonus crysoleucas) in the lakes of KNPNHS was assessed using the endpoints condition factor, liversomatic index (LSI) and macrophage aggregates (MAs; indicators of tissue damage). Condition was negatively related to Hg in golden shiner and banded killifish, LSI was not related to Hg in any of the three species, and all species showed evidence of increasing MA prevalence with increasing Hg concentrations. These findings suggest that the health of wild fish species in KNPNHS is being affected by Hg, and that Hg concentrations similar to or greater than those found in the fish from KNPNHS are of concern for the health of other populations of wild fishes."--Leaf ii.
Download or read book Managing Protected Areas in a Changing World written by Science and Management of Protected Areas Association and published by Wolfville, N.S. : Science and Management of Protected Areas Association. This book was released on 2002 with total page 1544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Mercury on the General and Reproductive Health of Yellow Perch in Kejimkujik National Park Nova Scotia written by Katharina Batchelar and published by . This book was released on 2012 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mercury Cycling in a Wetland dominated Ecosystem written by Nelson J. O'Driscoll and published by Society of Environmental Toxicology & Chemistry. This book was released on 2005 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mercury Deposition and Cycling in Northern Wisconsin Lakes and the Effect of a Decrease in Mercury Deposition on Yellow Perch Perca Flavescens Mercury Concentrations written by John Paul Schwalbe and published by . This book was released on 2004 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Factors Influencing Mercury Accumulation in Yellow Perch Perca Flavescens and Aufwuchs in Selected North Central Wisconsin Lakes written by William Gregory Cope and published by . This book was released on 1988 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: I studied mercury (Hg) accumulation in yellow perch (Perca flavescens) and aufwuchs in 11 lakes with a broad range of pH (5.1 to 7.8) and alkalinity ( -12 to 769 ueq/L) in north-central Wisconsin. Mercury uptake was greatest in perch in lakes with alkalinity less than or equal to 40 ueq/L. Multiple regression models, which included combinations of pH, alkalinity, and total Hg concentration and organic content in surficial profundal sediments as independent variables, accounted for 80 to 90% of the variation of Hg burden and concentration in whole yellow perch. Furthermore, preliminary data suggest that Hg concentrations in whole calendar age 2 yellow perch reflect concentrations of the metal in axial muscle tissue of walleyes in north-central Wisconsin lakes. Aufwuchs from artificial substrates accumulated measurable amounts of Hg during 28-d incubation periods; Hg concentrations varied seasonally and were greatest in fall, lowest in spring, and intermediate in summer. Multiple regression models with combinations of five independent variables (pH, alkalinity, total Hg concentration and organic content in surficial profundal sediment, and total watershed area:lake surface area) accounted for 80 to 90% of the variability in Hg concentration and burden (areal) in aufwuchs. When interpretative problems and costs in the use of procedurally defined aufwuchs are considered, the use of a forage fish such as yellow perch seems to be a more efficient approach to monitoring Hg bioavailability. Furthermore, determination of Hg in small yellow perch is a more direct method of assessing potential Hg contamination of gamefish--a topic with human health implications.
Download or read book Mercury Concentrations in Yellow Perch Perca Flavescens written by Parks Canada. Atlantic Region and published by . This book was released on 2001 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Toxicology and Chemistry written by and published by . This book was released on 2004 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2009 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current Research Geological Survey of Canada written by Geological Survey of Canada and published by . This book was released on 1999 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Acid Deposition Science Assessment 2004 written by Meteorological Service of Canada and published by Downsview, Ont. : Meteorological Service of Canada. This book was released on 2005 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The 2004 Canadian Acid Deposition Science Assessment has been prepared by researchers from the federal and provincial governments and academia. This assessment builds upon the results presented in the 1997 Canadian Acid Rain Assessment. The assessment consists of two documents, the Summary of Key Results and the Assessment. The Summary of Key Results synthesizes the major findings of the Assessment in the context of ten questions and subquestions put forth by the acid deposition policy and science communities. The Assessment presents a comprehensive review of acid deposition science in Canada."--Environment Canada Website.
Download or read book Mercury Bioaccumulation Through Food Webs in Acidic Lakes at Kejimkujik National Park and National Historic Site Nova Scotia written by Brianna Wyn and published by . This book was released on 2007 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Examination of Mercury Concentrations in White Perch Yellow Perch and White Sucker in Cumberland and Guysborough Counties in Nova Scotia written by Carolyn Heather Stevens and published by . This book was released on 2014 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
