Download or read book Impacts of a Flexible Total Allowable Take System on Beluga Conservation in the Nunavik Marine Region written by Thomas Doniol-Valcroze and published by . This book was released on 2014 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Harvest Advice and Effects of a Flexible Total Allowable Take System for Nunavik Beluga Delphinapterus Leucas written by Canadian Science Advisory Secretariat and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Harvest Advice and Effects of a Flexible Total Allowable Take System for Nunavik Beluga Delphinapterus Leucas written by and published by . This book was released on 2014 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Updated Analysis of Genetic Mixing Among Beluga Stocks in the Nunavik Marine Region and Belcher Islands Area written by Arnaud Mosnier and published by . This book was released on 2017 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Actions Associated with Management and Recovery of Cook Inlet Beluga Whales written by and published by . This book was released on 2003 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Individual Transferable Quotas as an Incentive Measure for the Conservation and the Sustainable Use of Marine Biodiversity written by Expert Group on Economic Aspects of Biodiversity and published by . This book was released on 1998 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Management Framework for Nunavik Beluga written by M.O. Hammill and published by . This book was released on 2017 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book St Lawrence Beluga Recovery Plan written by St. Lawrence Beluga Recovery Team and published by . This book was released on 1995 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document reviews the current state of knowledge about St. Lawrence belugas, recommends a series of actions for ensuring their survival and proposes an implementation schedule. The goal of the Recovery Plan is to bring population numbers and conditions to a state where natural event and human activities will not threaten the survival of the St. Lawrence beluga whale population. A subsidiary goal is to improve the status from endangered to vulnerable, as defined by COSEWIC.
Download or read book Application of Epidemiological Tools to the Conservation of an Endangered Species written by Stephanie A. Norman and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Cook Inlet, Alaska belugas (CIB) (Delphinapterus leucas) are a genetically and geographically isolated wild stock, residing in the upper Inlet's waters year-round. This small, declining population was listed as endangered in 2008. Relatively little research has been conducted on diseases and environmental threats to this stock that may play a role in their decline and long-term viability. To date, impacts of disease, anthropogenic drivers, and environmental factors on population dynamics have not been well characterized. Four studies were conducted to help evaluate CIB health and survival threats: 1) characterization of hematology and serum chemistry values in Bristol Bay belugas (BBB), a healthy growing population, for comparison to CIB, 2) characterization of hematology and serum chemistry variation patterns from captive belugas over 22 years, to provide methods applicable to wild populations such as CIB, 3) development of a model using anthropogenic and environmental factors to demonstrate CIB population trajectories based on survival and fecundity rates in a simulated population, and 4) evaluation of fecal pathogens and contributing fecal host sources to surface waters and sediment in areas of upper CI that overlap critical beluga habitat. Results from the first study showed that mean hematocrit, chloride, creatinine, total protein (TP), albumin, and alkaline phosphatase were significantly lower in May than they were in September, whereas mean corpuscular hemoglobin concentration, monocytes, phosphorous, magnesium, blood urea nitrogen, alanine transaminase, aspartate aminotransferase, gamma glutamyl transferase, and creatinine kinase were significantly higher. Mean TP, white blood cell count, neutrophils, and lymphocytes were significantly higher early in the capture period than they were later. No significant differences in blood analyte values were noted between males and females. Usingoverall body length as a proxy for age, larger (older) belugas had lower white blood cell, lymphocyte, and eosinophil counts as well as lower sodium, potassium, and calcium levels but higher creatinine levels than smaller belugas. In this study, the most striking differences in analyte values for BBB were seasonal, and the analyte value variability noted for age and sex was similar to that seen in other studied wild beluga populations. Based on bloodwork values, BBB appeared to adapt to capture and handling. The BBB bloodwork established useful baselines for further monitoring of this population and future comparisons to BBB. Results from the second study, in which blood analyte variation was evaluated in a captive beluga population, demonstrated that many blood analytes differed based on whale sex and age. For many blood analytes, similar circannual variation patterns were observed across facility location, and seasonal variation was also observed. These findings from a long-term assessment of individual analyte variation in healthy cetaceans agree with previous reports that many blood analytes differ significantly between partitioning factors such as age groups and seasons. Age, seasonality, and sex were important determinants for a majority of the blood analytes, therefore, the variability of these variables should be accounted for when investigating health trends over time. The use of an age-structured population model to assess the impact of stressors on CIB fecundity and survival demonstrated that decreases in fecundity probability had a smaller effect on population growth compared to decreases in survival probability, for the same magnitude of modification. Results furthermore suggested that supplementing census data with age-structured modeling can improve the detection and projection of changes in survivorship and fecundity of endangered populations. The results from study three demonstrated an efficient and non-invasive method to help determine the magnitude of a stressor that would likely result in the observed decline of the CIB population that could also be applied to other populations. In addition, the results can identify hypothetical causes of the decline and what stressors justify additional resources for study. In the last study, determining fecal pathogen pollution patterns and sources, the most common host source fecal marker was human source, followed by the livestock marker that may also represent large wildlife hosts such as moose and deer. The prevalence of Giardia was greater than that for Cryptosporidium, overall and by matrix type. Salmonella was not detected. Vibrio was more prevalent in sediment than in water for both months. Norovirus was detected in water samples but not in sediment. The most prevalent fecal host source marker detected overall was human, followed by livestock. Human-host Bacteroidales marker prevalence was greatest in water both months, followed by livestock in water and canine and avian in sediment. Fecal coliform counts in surface waters were within Alaska water quality standards, and were 10-100x greater in sediment. In unadjusted regression analyses, water was found more likely to be positive for either protozoal organism compared to sediment. In the final study, the greatest contribution of tested fecal host-specific markers appeared to be from human sources. Exposure of belugas to pathogens in waters where they most often congregate and socialize should be a consideration. In addition, exposure of marine life and humans to potential fecal pathogens may be influenced by climatic and anthropogenic factors and should be considered when evaluating fecal monitoring programs. Findings from these studies will contribute to current knowledge of CIB health and aid conservation policy in terms of: management of endangered species; the integration of wildlife conservation with population health interventions; and applicability to other endangered or threatened marine life.
Download or read book Record of decision Cook Inlet beluga whale subsistence harvest final supplemental environmental impact statement written by United States. National Marine Fisheries Service and published by . This book was released on 2008* with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conservation Plan for the Cook Inlet Beluga Whale Delphinapterus Leucas written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recovery Plan for the Cook Inlet Beluga Whale Delphinapterus Leucas written by United States. National Marine Fisheries Service. Alaska Regional Office. Protected Resources Division and published by . This book was released on 2016 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The goal of this recovery plan is to guide efforts that achieve the recovery of CI belugas to a level sufficient to warrant their removal from the federal List of Endangered and Threatened Wildlife and Plants under the ESA (i.e., delist) by meeting the recovery criteria and addressing threats. The intermediate goal is to guide efforts that result in reclassification of CI belugas from endangered to threatened (i.e., downlist). The determinations regarding whether these goals are met include consideration of the population's risk of extinction and threats as identified under the ESA section 4(a)(1) factors. If a species is determined to be recovered, then the protections afforded by the ESA no longer apply, although other pertinent federal (e.g., MMPA) and state protections will still apply."--PDF page xiv-xv.
Download or read book Updated Analysis of Genetic Mixing Among Nunavik Beluga Summer Stocks to Inform Population Models and Harvest Allocation written by and published by . This book was released on 2016 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Statement of Problems of the St Lawrence Belugas written by Ad Hoc Committee for the Conservation of the St. Lawrence Belugas and published by . This book was released on 1987 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Assessment EA Regulatory Impact Review and Regulatory Flexibility Act Analysis of Bottlenose Dolphin Conservation Measures to Amend the Bottlenose Dolphin Take Reduction Plan and Sea Turtle Conservation Regulations written by and published by . This book was released on 2014 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The NOAA Fisheries Southeast Regional Office has submitted the subject final amendment for review and implementation by the Secretary of Commerce. The final amendment requires the year-round use of modified pound net leaders on offshore nets fished in southern Virginia waters of the mainstem Chesapeake and state coastal waters. It also requires fishermen to attend a one-time compliance training before setting modified pound net leaders. The amendment is necessary to ensure conservation of strategic stocks of bottlenose dolphins by reducing serious injuries and deaths in the Virginia pound net fishery"--Cover letter summary.
Download or read book Evaluating Impacts of a Flexible Quota System on Walrus Harvesting written by Michael O. Hammill and published by . This book was released on 2016 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Adventure Tourism written by David Huddart and published by Springer Nature. This book was released on 2019-10-25 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook presents a comprehensive overview of the environmental impacts of various types of adventure tourism and how these can be best managed. This volume follows on from the authors previous textbook – ‘Outdoor Recreation: Environmental Impacts and Management’ and continues the aim of developing a deeper understanding of how tourist numbers impact the environment and to provide practical solutions to these problems. Combining their own first-hand experience and research with extensive literature review the authors' present several popular adventure tourism destinations from across the globe, including the Arctic, the Himalayas, Africa, Australia and Scotland as case studies. Chapters cover the particular challenges faced by each region: including impacts on animals and birds; the spread of invasive plant species and diseases; trail impacts on vegetation; impacts on geological, historical and archaeological sites and pollution and waste issues. A discussion and evaluation of the possible management actions for minimising these impacts and how outdoor recreation tourists can be regulated concludes each chapter. This practical and engaging textbook will be invaluable to students and scholars of adventure tourism and outdoor recreation as well as practitioners and managers working in the field.
