Download or read book Marine Invertebrate Fisheries written by John F. Caddy and published by John Wiley & Sons. This book was released on 1989-01-17 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systems Analysis and Simulation in Wildlife and Fisheries Sciences William E. Grant This hands-on approach provides guidance to the step-by-step applications of systems analysis and simulation to questions about ecological systems. At the same time, it explains general principles without requiring that readers have a strong background in mathematics, statistics, or computer science. Chapter 1 traces the development of systems ecology introducing basic concepts, while Chapters 2 through 5 present the four phases of systems analysis: conceptual model formulation, quantitative specification of the model, model validation, and model use. 1986 (0 471-89236-X) 338 pp. Bioeconomic Modelling and Fisheries Management Colin W. Clark Discusses the management of commercial marine fisheries and the relationship between the economic forces affecting the fishing industry and the biological factors that determine the production and supply of fish in the sea. Topics focus on methods of preventing overfishing and overcapitalization, economically effective and practical forms of regulation, management of developing fisheries, natural fluctuations of fish stocks, and complexities of marine ecosystems. 1985 (0 471-87394-2) 291 pp. Methods in Marine Zooplankton Ecology Makoto Omori and Tsutomu Ikeda Encompassing basic principles, procedures, and research problems, this book serves as a complete guide to current methods used in the study of marine zooplankton. The techniques are equally applicable to small organisms and to the larval stages of larger, commercially important organisms. Chapters start with a brief, but well-summarized introduction to zooplankton, followed by field sampling strategies and laboratory methods, and then conclude with estimates of productivity and analysis of community structure. Each method is described in detail, including a discussion of the problems inherent in using it. 1984 (0 471-80107-0) 322 pp.
Download or read book Reproduction and Development of Marine Invertebrates of the Northern Pacific Coast written by Megumi F. Strathmann and published by University of Washington Press. This book was released on 2017-10-01 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference work is designed to provide background information on an array of northeastern Pacific marine invertebrate species so that they can be more easily included in comparative studies of morphology, cell biology, reproduction, embryology, larval biology, and ecology. It is meant to serve biologists who are new to the field as well as experienced investigators who may not be familiar with the invertebrate fauna of the northern Pacific Coast. The species discussed in this volume are mostly from the cold temperate waters of the San Juan Archipelago, near Puget SOund and the Strait of Georgia, but the information and methods given will be useful in laboratories from Alaska to central California and applicable to some extend in other coastal or inland facilities. An introductory chapter discusses basic prodcedures for collecting and maintaining mature specimens, for initiating spawning, and for culturing embryos and larvae in the laboratory. Subsequent chapters summarize reproduction and development in thirty different invertebrate groups and provided ercent references through which additional information can be traced, cite monographs or keys needed to identify species, and give methods useful for studying an array of selected species. Available information on habitat, diet, reproductive mode, egg size, developmental pattern, developmental times, larval type, and conditions for settlement and metamorphosis is reported for over 450 species.
Download or read book Restocking and Stock Enhancement of Marine Invertebrate Fisheries written by Johann D. Bell and published by Elsevier. This book was released on 2005-12-07 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Many of the world's fisheries are in trouble - they no longer yield the catches, and potential profits, they once did. The habitats that support fisheries have been damaged by pollution and other irresponsible use of coastal land. Destructive fishing methods like trawling and blast fishing have also changed fish habitats resulting in support of fewer fish. The authors draw on more than 1000 scientific papers covering 11 groups/species of marine invertebrates. From this large literature, they distill 20 lessons for assessing and guiding the use of restocking and stock enhancement in the management of invertebrate fisheries. · Written by 7 expert authors · Covers 11 groups/species of marine invertebrates · Reviews over 1000 scientific papers · Identifies 20 lessons that can be learned from past restocking and stock enhancement initiatives · Proposes a new approach to assess the potential value of hatchery releases to complement other forms of management · Assesses progress of disciple against the blueprint for a responsible approach.
Download or read book Evolutionary Ecology of Marine Invertebrate Larvae written by Tyler J. Carrier and published by Oxford University Press. This book was released on 2018 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: "More than seventy percent of the earth's surface is covered by the ocean which is home to a staggering and sometimes overwhelming diversity of organisms, the majority of which reside in pelagic form. Marine invertebrate larvae are an integral component of this pelagic diversity and have stimulated the curiosity of researchers for centuries. This accessible, upper-level text provides an important and timely update on the topic of larval evolution and ecology, representing the first major synthesis of this interdisciplinary field for more than 20 years. The content is structured around four major areas: evolutionary origins and transitions in developmental mode; functional morphology and ecology of larval forms; larval transport, settlement, and metamorphosis; larval ecology in extreme and changing environments. This novel synthesis integrates traditional larval ecology with life history theory, evolutionary developmental biology, and modern genomics research to provide a research and teaching tool for decades to come." -- from the rear cover.
Download or read book Ecology of Marine Invertebrate Larvae written by Larry McEdward and published by CRC Press. This book was released on 2020-04-08 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book to provide a detailed treatment of the field of larval ecology. The 13 chapters use state-of-the-art reviews and critiques of nearly all of the major topics in this diverse and rapidly growing field. Topics include: patterns of larval diversity, reproductive energetics, spawning ecology, life history theory, larval feeding and nutrition, larval mortality, behavior and locomotion, larval transport, dispersal, population genetics, recruitment dynamics and larval evolution. Written by the leading new scientists in the field, chapters define the current state of larval ecology and outline the important questions for future research.
Download or read book Enhancing Or Restoring the Productivity of Natural Populations of Shellfish and Other Marine Invertebrate Resources written by J. F. Caddy and published by Food & Agriculture Org.. This book was released on 2003 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ownership and co-management issues, and the necessary decisional rules for successful management are discussed, as well as how to reconcile the enhancement programme with other uses of the coastline.
Download or read book Marine Invertebrates of the Pacific Northwest written by Eugene N. Kozloff and published by Seattle : University of Washington Press. This book was released on 1987-01-01 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guide to Marine Invertebrates written by Daniel Gotshall and published by . This book was released on 2005 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the largest species of sea pen encountered by divers in the northern Pacific. the short, slender branches of the stalk are white, as are the polyps.
Download or read book References for the Identification of Marine Invertebrates on the Southern Atlantic Coast of the United States written by Richard E. Dowds and published by . This book was released on 1979 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Invertebrates written by Ronald L. Shimek and published by Tfh Publications, Incorporated. This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Profiling some of the most beautiful and bizarre animals that make their way into marine aquariums, this book covers more than 500 invertebrates and plants of speical interest to reef aquarists.
Download or read book Effects of Environmental Conditions and Management Practices on Harvested Marine Populations written by Allison Gardiner Dedrick and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental conditions and management practices both can have strong effects on population dynamics. In light of environmental shifts due to climate change, understanding how managed populations might respond to future environmental conditions takes on an additional urgency. In this dissertation, I explore three cases of environmental and anthropogenic effects on population dynamics and connectivity, focusing on harvested marine populations. In the first chapter, I explore the population-level consequences of warming ocean temperatures and ocean acidification (OA), driven by rising concentrations of atmospheric carbon dioxide. There have been numerous studies of the effects of OA and temperature increase on individuals but little understanding of what these effects might mean at the population scale. OA and temperature effects can change the spread and magnitude of the dispersal kernel, which can alter the persistence and spatial distribution of marine invertebrate populations. For exploited populations with economic as well as ecological value, changes in population abundance and structure will also alter the maximum sustainable fishery yields and could affect management. In this chapter I use a spatially-explicit population model to explore and quantify the relative population-level consequences of OA and temperature effects and their interaction with fishing for marine invertebrates. I find that ocean acidification and temperature increase can affect populations in opposite ways and effects on larval development seem to be the strongest at the population-level. When OA and temperature effects are combined for a parameterization of a prototype calcifying invertebrate, they nearly cancel each other out and the net effect on population size and maximum sustainable catch is slightly negative. In the second chapter, I explore the effects of the management practice of trucking hatchery fish in a variable environment. Trucking hatchery fish for release downstream can increase connectivity among salmon populations by increasing straying but also can enhance freshwater survival. Connectivity between populations can have counteracting effects on stability by reviving declining local populations or reducing genetic and spatial diversity. Diversity within populations can help buffer against collapse in a changing environment, through a phenomenon called the portfolio effect, which is particularly applicable to salmon stocks where varied freshwater conditions can create runs with diverse traits like outmigration timing. Using a quantitative genetic model, I investigate the demographic and genetic effects of trucking on the portfolio effect. I find that releasing hatchery fish closer to the ocean results in both genetic and demographic effects on the whole population, not just in the creek with the hatchery, and increases both population average abundance and variability. The tradeoff between abundance and variability is much stronger with the effects of genetic homogenization included than with demographic synchronization effects alone. Connectivity among salmon populations might also vary through time if the straying rate changes under different conditions. Previous studies of salmon straying have found an influence of anthropogenic and environmental factors on straying. In the third chapter, I explore the effect of ocean conditions, freshwater conditions, fish characteristics, and management practices on the probability of straying using data from California fall-run Chinook salmon. I find that management factors have the strongest effect on straying, particularly displacement of hatchery fish downstream and the size at release, but that environmental influences are still detectable.
Download or read book Spineless written by Susan Middleton and published by Harry N. Abrams. This book was released on 2014-10-21 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Spineless, acclaimed photographer Susan Middleton explores the mysterious and surprising world of marine invertebrates, which represent more than 98 percent of the known animal species in the ocean. They are also astonishingly diverse in their shapes, patterns, textures, and colors--in nature's fashion show, they are the haute couture of marine life. This collection of more than 250 remarkable images is the result of seven years of painstaking fieldwork across the Pacific Ocean, using photographic techniques that Middleton developed to capture these extremely fragile creatures on camera. She also provides short essays that examine the place these invertebrates occupy on the tree of life, their vast array of forms, and their lives in the ocean. Scientist Bernadette Holthuis contributes profiles describing each species, many of them for the first time. Middleton's book is a stunning new view of nature that harmoniously combines art and science.
Download or read book Contributions Towards a Knowledge of the Marine Invertebrate Fauna of the Coasts of Rhode Island and New Jersey written by Joseph Leidy and published by . This book was released on 1855 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Identification Guide to the Larval Marine Invertebrates of the Pacific Northwest written by Alan L. Shanks and published by . This book was released on 2001 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of larval invertebrates is a vital and growing field in contemporary marine science. The key ecological role of larvae in determining adult population sizes has been recognized for decades and has inspired extensive research. This volume, the first of its kind, is an identification guide to the planktonic larvae of shallow subtidal and intertidal invertebrates common to the Pacific Northwest coast.Each chapter provides a brief background to the larval biology of an invertebrate group; keys, drawings, and descriptions for the identification of larvae; a list of the species present in the Pacific Northwest; and a reference section. The geographic range covered is roughly from southeast Alaska to northern California; however many of the species are found along the entire coast of California, as far south as Baja California.An essential reference for anyone attempting to identify larval invertebrates from zooplankton samples, this working manual is intended for students as well as scientists and researchers. It offers an important new resource for marine biologists, biological oceanographers, marine and intertidal ecologists, and especially larval biologists.
Download or read book The Manual of Marine Invertebrates written by Martyn Haywood and published by . This book was released on 1989 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keeping marine invertebrates successfully poses two major challenges : which animals to choose and how to set up a tank for them. This book provides practical answers to both challenges. It opens with an introduction to the biology of marine invertebrates and then examines how to meet their needs in captivity. It closes with a colorful survey of suitable aquarium subjects, from sponges and sea anemones to octopi and crabs.
Download or read book Phylum Bryozoa written by Thomas Schwaha and published by Walter de Gruyter GmbH & Co KG. This book was released on 2020-11-23 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: With an account of over 6.000 recent and 15.000 fossil species, phylum Bryozoa represents a quite large and important phylum of colonial filter feeders. This volume of the series Handbook of Zoology contains new findings on phylogeny, morphology and evolution that have significantly improved our knowledge and understanding of this phylum. It is a comprehensive book that will be a standard for many specialists but also newcomers to the field of bryozoology.
Download or read book Marine Invertebrates of the South Pacific written by Glenn Sant and published by . This book was released on 1995 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report examines the international trade in Trochus, pearl oyster, beche-de-mer and giant clam of the South Pacific. It documents a lack of effective measures to ensure sustainable harvest of these near-shore marine resources, and recommends needed actions.
