Download or read book Summary of Morrison Creek Lamprey Lampetra Richardsoni Variety Marifuga Trapping Studies 2011 2014 written by Joy Wade and published by . This book was released on 2014 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Jawless Fishes of the World written by Richard Beamish and published by Cambridge Scholars Publishing. This book was released on 2016-02-29 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hagfishes and lampreys, both examples of jawless fishes, are elongated, eel-like animals lacking paired fins, and are the only living representatives of ancient creatures that gave rise to current species of fish and, eventually, humans. This volume provides an overview of the current status of knowledge on a variety of topics related to jawless fishes, including their taxonomy, zoogeography, phylogeny, molecular biology, evolution, life history, role in the ecosystem, and fisheries and management of hagfishes and lampreys worldwide. This is the first book dealing exclusively with the various aspects of jawless fish species throughout the world. It brings together a number of papers providing new data on jawless fishes, and offers readers a range of useful information within a single reference, reflecting the growing appreciation for hagfishes and lampreys worldwide.
Download or read book Morrison Creek Lamprey Lampetra Richardsoni Trapping Survey June 2017 written by Joy Wade and published by . This book was released on 2019 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Passive downstream traps were placed in the main stem and headwaters of Morrison Creek, Courtenay, BC as a part of ongoing monitoring of Morrison Creek Lamprey, a federally-listed endangered lamprey species found only in the Morrison Creek watershed. The total numbers of lamprey trapped were low; however, they are comparable to the results of other trapping studies since 2011. Although methods are the same, catches remain much lower than those reported in the late 1970s and 1980s when the population was discovered. The causes of this decline in catch are unknown. Recommendations are to continue monitoring the population both in the main stem and headwaters through trapping studies and, using our best knowledge, ensure the habitat is maintained in a manner which supports the functions of the population and mitigates the effects of harm"--Abstract, page v.
Download or read book Summary of 2011 2021 Trap Data for the Endangered Morrison Creek Lamprey Lampetra Richardsoni written by Joy Wade and published by . This book was released on 2022 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This document describes sampling activities and summarizes results from 2011 to 2021 trapping surveys of Morison Creek Lamprey, a unique population of Western Brook Lamprey (Lampetra richardsoni). Morrison Creek Lamprey is an endangered species at risk, present only in the Morrison Creek watershed in Courtenay, British Columbia. The trapping activities reported here not only help to monitor the population, but have also provided an opportunity to identify conservation concerns and protect the species and its habitat. The data provided in this document shows persistence of the population within its range, and should not be used as an indicator of population abundance or relative abundance"--Abstract, page vi.
Download or read book Lampreys Biology Conservation and Control written by Margaret F. Docker and published by Springer. This book was released on 2019-06-03 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, published in two volumes, provides the most comprehensive review of lamprey biology since Hardisty and Potter’s “The Biology of Lampreys” published more than 30 years ago. This second volume offers a synthesis of topics related to the lamprey gonad (e.g., lamprey sex ratios, sex determination and sex differentiation, sexual maturation, and sex steroids), the artifical propagation of lampreys, post-metamorphic feeding and the evolution of alternative feeding and migratory types, the history and status of sea lamprey control in the Laurentian Great Lakes and Lake Champlain, and an overview of contributions of lamprey developmental studies for understanding vertebrate evolution.
Download or read book Lampreys Biology Conservation and Control written by Margaret F. Docker and published by Springer. This book was released on 2014-11-24 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides the most comprehensive review of lamprey biology since Hardisty and Potter’s five-volume “The Biology of Lampreys” published more than 30 years ago. Published in two volumes, it includes contributions from international lamprey experts, reviewing and providing new insights into the evolution, general biology, and management of lampreys worldwide. This first volume offers up-to-date chapters on the systematics, general biology, conservation status, and conservation needs of lampreys. It will serve as an important reference for researchers working on any aspect of lamprey biology and fishery managers whose mandate is to control or conserve lamprey populations.
Download or read book Endocrine Disruption in Fish written by David E. Kime and published by Springer Science & Business Media. This book was released on 1998-10-31 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last half-century has shown a dramatic increase in the standard of living of millions of people in Europe, North America and many parts of the Third World. This has, in many ways been brought about by scientific and technical developments which were initiated in the 1940s and 1950s. Promises were then made that nuclear energy would provide electricity so cheap that it would not need metering, pesticides would end malnutrition throughout the world and plastics and other synthetic chemicals would revolutionise our manufacturing industry and our way of life. Whilst some of these promises have been fulfilled, the problems of long-term health risks to humans and wildlife arising from the use, production and disposal of these products were either unknown or deliberately understated. Nuclear power is rendered economically unviable when the real cost of decommissioning and storage of waste for several millenia is included, and the effects on health of both humans and wildlife of early pest eradication programmes with organochlorine pesticides were well documented in Rachel Carson's "Silent Spring". Evidence of the effects of aerosols and refrigerants on depletion of the ozone layer has led to restriction on the use of CFCs, and there is now increasing evidence of climate change resulting from our profligate use of fossil fuels.
Download or read book Systematic Parasitology written by Dr. Sheila Willmott and published by Springer. This book was released on 1981-01-01 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Report Upon the Fishes of Kalamazoo Calhoun and Antrim Counties Michigan written by Charles Harvey Bollman and published by . This book was released on 1890 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Future of Fisheries Science in North America written by Richard J. Beamish and published by Springer Science & Business Media. This book was released on 2009-02-07 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fisheries science in North America is changing in response to a changing climate, new technologies, an ecosystem approach to management and new thinking about the processes affecting stock and recruitment. Authors of the 34 chapters review the science in their particular fields and use their experience to develop informed opinions about the future. Everyone associated with fish, fisheries and fisheries management will find material that will stimulate their thinking about the future. Readers will be impressed with the potential for new discoveries, but disturbed by how much needs to be done in fisheries science if we are to sustain North American fisheries in our changing climate. Officials that manage or fund fisheries science will appreciate the urgency for the new information needed for the stewardship of fish populations and their ecosystems. Research organizations may want to keep some extra copies for a future look back into the thoughts of a wide range of fisheries professionals. Fisheries science has been full of surprises with some of the surprises having major economic impacts. It is important to minimize these impacts as the demand for seafood increases and the complexities of fisheries management increase.
Download or read book The Ocean Ecology of Pacific Salmon and Trout written by and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Sea Among Us written by Richard James Beamish and published by Harbour Publishing Company. This book was released on 2014 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Strait of Georgia is a one of the world's great inland seas, a 6,900 sq km body of water lying between the British Columbia mainland and Vancouver Island. Rich in history, teeming with wildlife and marine traffic, it is essential to British Columbians for food, jobs, travel and recreation. The sheltered waters of the strait are home to Canada's largest seaport and over two-thirds of the province's population. The Sea Among Us is the first book to present a comprehensive study of the Strait of Georgia in all its aspects with chapters on geology, First Nations, history, oceanography, fish, birds, mammals,invertebrates and plants. Covering everything from tsunami modelling to First Nations history to barnacle reproduction, the book is a sweeping overview of the waterway. It describes how fjords formed, what the seafloor is made of, and why coastal BC is so prone to earthquakes; it advises on which jellyfish sting, how to tell the difference between Dall's and harbour porpoises, and where to find whales; and it addresses how climate change and human impacts could affect the strait, noting that though marine ecosystems are tough and adaptable, there are limits to this resiliency. As editor Dr. Richard Beamish says, "It is the function of this book to inform British Columbians about the Strait of Georgia. All authors hope that the readers will use the information to ask questions about how the Strait of Georgia is coping with change and how they can provide more of the information that is needed to maintain a healthy Strait of Georgia." Informative, descriptive, cautionary and entertaining, The Sea Among Us is illustrated with attractive colour photographs, figures and drawings. It fills a place on the shelf of essential BC reference books beside The Encyclopedia of British Columbia and Marine Life of the Pacific Northwest.
Download or read book Climate Change and Northern Fish Populations written by National Research Council Canada and published by NRC Research Press. This book was released on 1995 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: These documents summarize some of the recent studies of the relationships among climate, the aquatic environment, and the dynamics of fish populations. The studies are mostly from the North Pacific ocean, but there are reports of investigations from the North Atlatic Ocean and from fresh water. Various papers include numerous examples of the relationships between fish abundance trends and the environment.
Download or read book Salmon Lice written by Simon Jones and published by John Wiley & Sons. This book was released on 2011-08-02 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: The salmon louse Lepeophtheirus salmonis is adapted to survive in hostile marine environments of the northern hemisphere, including an ability to parasitize several species of salmon. Salmonids are some of the most economically important and sought after fish for human consumption, and louse parasitism has a significant impact both on cultured and wild fish populations. Salmon Lice is a timely collection of the latest research on the cause and spread of lice infestations and management techniques being designed and implemented to combat this issue. Salmon Lice provides a thorough single volume review of Lepeophtheirus salmonis, the key parasite standing in the way of sustainable and profitable production of salmonid fishes including salmon, trout and charr. Opening with a review of the biology, morphology, life cycle, and larval behavior of the parasite, Salmon Lice proceeds to review the distribution of planktonic larvae of salmon lice, addresses management techniques used in salmonid aquaculture and capture fisheries, provides a practical assessment of the salmon lice issue and explores potential solutions to the problem. With comprehensive coverage of the biology and distribution of this harmful and ubiquitous parasite, Salmon Lice will be of value to fish health researchers, aquaculture and fisheries professionals, and seafood industry personnel to inform the management of both cultured and wild salmonid populations. Key Features: In-depth coverage of a key parasite impacting viability and sustainability of salmonid fisheries and aquaculture Integrates parasite biology and hydrodynamic models in diverse coastal ecosystems Provides a practical assessment of the salmon louse issue Reviews international salmon louse monitoring and management techniques used in salmonid fisheries and aquaculture
Download or read book Stock Enhancement and Sea Ranching written by Kenneth M. Leber and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: The collapse of many of the World’s fisheries continues to be of major concern and the enhancement of fish stocks through techniques such as ranching is of huge importance and interest across the globe. This important book, which contains fully peer reviewed and carefully edited papers from the 2nd International Symposium in Stock Enhancement and Sea Ranching is broadly divided into sections covering the following areas: The present situation of stock enhancement Seed quality and techniques for effective stocking Health management of hatchery stocks Methods for evaluating stocking effectiveness Population management in stock enhancement and sea ranching Management of stocked populations Ecological interactions with wild stocks Genetic management of hatchery and wild stocks Socio-economics of stock enhancement Case studies Stock Enhancement and Sea Ranching has been written and edited by some of the world’s foremost authorities in fisheries science and related areas and is essential reading for all fisheries scientists throughout the World. Fish biologists, marine and aquatic scientists, environmental biologists, ecologists, conservationists, aquaculture personnel and oceanographers will all find much of use and interest within this book. All libraries within universities and research establishments where these subjects are studied and taught should have copies of this book on their shelves.
Download or read book Evolutionary Biology of Primitive Fishes written by R. E. Foreman and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: What, precisely, is a primitive fish? Most biologists would agree that the living cyclostomes, selachians, crossopterygians, etc. cannot be considered truly primitive. However, they and the fossil record have served to provide the information which forms the basis for speculation concerning the nature of the original vertebrates. This symposium of biologists from a variety of disciplines was called together to create collectively, from the best available current evidence, a picture of the probable line of evolution of the prototype primitive fishes. The symposium was designed to follow one that took place in Stockholm in 1967, convened for a similar purpose, with about the same number of participants. It is a matter of interest that almost the entire 1967 symposium (Nobel Symposium 4) dealt only with the hard tissues, whether fossil or modern. In charting the course of the present symposium it was felt that the intervening years have produced numerous lines of new evidence that could be employed in the same way that a navigator determines his position. Each field, be it adult morphology, geology, ecology, biochemistry, development or physiology, generates evidence that can be extrapolated backward from existing vertebrate forms and forward from invertebrate forms. If the intersect of only two lines of evidence produces a navigational "fix" of rather low reliability, then an intersect, however unfocussed, of multiple guidelines from more numerous disciplines might provide a better position from which to judge early vertebrate history.
Download or read book Age Determination Methods for Fishes Studied by the Groundfish Program at the Pacific Biological Station written by D. E. Chilton and published by Government of Canada, Fisheries and Oceans, Scientific Information and Publications Branch. This book was released on 1982 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual describes methods and equipment used to estimate the ages of groundfish species studied by the Pacific Biological Station. Procedures for routine identification of annuli on scales, otoliths, otolith section, fin-ray sections, and spines are described and illustrated. Although the techniques are applied to species found off Canada's west coast, they should be applicable to other marine and freshwater fishes from temperate and arctic waters. Because some of the procedures are experimental and many have not been validated, it is expected that this manual will be revised several times.
