Download or read book Chondrichthyes written by Luis Fernando Rodrigues-Filho and published by BoD – Books on Demand. This book was released on 2017-12-20 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chondrichthyes are a group of cartilaginous fish, where we have sharks, rays, and chimeras as members. This group plays an important role in aquatic ecology, as they act as predators throughout the food chain (e.g., sharks). However, many populations of Chondrichthyes are threatened by several factors (increased direct fishing, high mortality rate as accompanying fauna, marine pollution, habitat destruction, etc.). These declines are evident in many parts of the world and have come to the attention of scientists, conservation organizations, the media, and the general public. Fisheries legislation regulating international fisheries markets has been amended to provide greater protection for this group along with other species of fish. However, little is known about these species, which reinforces the importance of studies in order to have a better understanding of the elasmobranch stocks, as well as to identify the influences of the anthropic action of fishing. In response to knowledge on the low sustainability of cartilaginous fish fisheries on a global scale, FAO has developed an international plan of action for the management and conservation of these fish, with the aim of developing and implementing national plans of action to ensure management and conservation of these stocks, having as main recommendation the collection of information about the Chondrichthyes, especially the sharks. Even so, this group is little known in terms of biodiversity, ecology, behavior, and a host of other characteristics relevant to this taxon, which is very worrying. Chondrichthyes - Multidisciplinary Approach attempts to portray to the readers up-to-date information on Chondrichthyes to promote an overview of the current taxon, serving as an indispensable source of access to more accurate and detailed information on shark rays and chimeras.

Download or read book Reproductive Biology and Phylogeny of Chondrichthyes written by William C. Hamlett and published by CRC Press. This book was released on 2011-10-14 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internal fertilization is universal in chondrichthyan fishes and, as such, requires a suite of biological activities, including behavioral, morphological and physiological mechanisms, to ensure successful copulation and fertilization. This volume correlates available data and ideas concerning the development, reproductive morphology, function, and

Download or read book Smiths Sea Fishes written by Margaret M. Smith and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1205 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dr. D. S. Henderson, Chairman of the 1. L. B. Smith Institute of Ichthyology and Vice Chancellor of Rhodes University This book is a unique, international collaborative effort ranging all of the colour plates for the book. For the past of 76 scientists, representing 15 countries. Several skilled eight years, she has been assisted in the research, writing artists and photographers have also contributed to the and editing of the book by Dr. P. C. Heemstra. numerous and beautiful illustrations. Research done in It is essential for the proper management of the marine South Africa was supported by the Council for Scientific fish resources of southern Africa that we know what species and Industrial Research. Work on the book at the J.L.B. we are dealing with. This book will greatly facilitate the Smith Institute was also funded by the Department of identification of our fishes. It will thus be of vital import National Education and The Trustees of the Sea Fishes of ance to the understanding and wise use of our tremendously Southern Africa Book Fund. Expenses of visits by ichthy diverse and valuable fish fauna. ologists from overseas were defrayed by a grant from the We are proud of the affiliation of the J.L.B. Smith Insti John S. Schlesinger Foundation. tute with Rhodes University and happy to see the successful Although this book is an impressive contribution to the completion of this long-awaited work.

Download or read book Chondrichthyes I written by Rainer Zangerl and published by . This book was released on 1981 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sport Fishery Abstracts written by and published by . This book was released on 1977 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chondrichthyes III written by Barbara J. Stahl and published by . This book was released on 1999 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook of Paleoichthyology Chondrichthyes III written by Hans-Peter Schultze and published by . This book was released on 1978 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vertebrate Zoology written by Nelson G. Hairston and published by CUP Archive. This book was released on 1994-06-24 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a major new textbook that is intended to lead students away from purely descriptive zoology courses into an experimental approach that emphasizes asking and answering questions about nature. The book gives a panoramic view of vertebrate life, classification, ecology and behaviour. Section I of the book describes the major groups of vertebrates and their origins. The second section covers classification and its methodology. Section III describes the ecology of vertebrates from two standpoints: how individuals cope with environmental extremes, and principles of population and community ecology as illustrated by experiments carried out in the field. Section IV describes the geographic distribution of vertebrates. The fifth section discusses migration. Vertebrate behaviour is the subject of the final section and covers observations and the theories and experiments they have inspired.

Download or read book Biology of Skates written by David A. Ebert and published by Springer Science & Business Media. This book was released on 2008-12-25 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Skates have become a concern in recent years due to the preponderance of these elasmobranchs that are caught as bycatch or as a directed fishery. This has raised concern because skates have life history characteristics that may make them vulnerable to over-exploitation. It was due to this concern that prompted Drs. David Ebert and James Sulikowski to organize an international symposium on the “Biology of Skates”. The aims and goals of the symposium were to bring together an international group of researchers to meet, discuss, perhaps develop collaborations, and present their most recent findings. The symposium was held over two days, on 13-14 July, 2006, in conjunction with the 22nd annual meeting of the American Elasmobranch Society in New Orleans, LA. A total of 31 authors from four countries contributed 16 papers that appear in this volume. The papers are broadly arranged into four separate categories: systematics and biogeography, diet and feeding ecology, reproductive biology, and age and growth. This is the first dedicated book on the biology of skates. We hope that readers will find this volume of interest and that it helps encourage and stimulate future research into these fascinating fishes.

Download or read book Evolution of Immune Reactions written by Petr Sima and published by CRC Press. This book was released on 1990-08-27 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book on phylogeny and immunity reconstructs the history and evolutionary pathways of immunity among the various forms of life. The authors argue that the immunity could have evolved different adequately successful patterns in the animal sub-regnum which are strictly determined by the morpho-physiological possibilities of the animals. They state that the vertebrate type of immunity evolved only in the chordate branch. The publication devotes special attention to the arthropods and molluscs, as they have attracted more investigative efforts than any other invertebrate taxa. The authors selected Agnatha, Chondrichthyes, and Osteichthyes from the vertebrate taxa in order to show where and how the morphofunctional basis of the truly adapative immunity of the endothermic tetrapods gradually evolved. Each chapter gives the description of the origin and interrelationships of the representatives of the taxon in question. Also given are the main biological, morphological, non-morphological and immune attributes. Emphasized throughout the book is the central idea that immunological reactions are a part of the overall biological phenomena and should be studied only from this aspect. The authors express that the fields of comparative and evolutionary immunology will provide inspiration for further investigations in biomedicine in the near future.

Download or read book Biology of Sharks and Their Relatives written by Jeffrey C. Carrier and published by CRC Press. This book was released on 2012-04-09 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: Virtually every area of research associated with sharks and their relatives has been strongly impacted by the revolutionary growth in technology. The questions we can now ask are very different than those reported even two decades ago. Modern immunological and genetic techniques, satellite telemetry and archival tagging, modern phylogenetic analysi

Download or read book Fishes of the World written by Joseph S. Nelson and published by John Wiley & Sons. This book was released on 2016-03-28 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: Take your knowledge of fishes to the next level Fishes of the World, Fifth Edition is the only modern, phylogenetically based classification of the world’s fishes. The updated text offers new phylogenetic diagrams that clarify the relationships among fish groups, as well as cutting-edge global knowledge that brings this classic reference up to date. With this resource, you can classify orders, families, and genera of fishes, understand the connections among fish groups, organize fishes in their evolutionary context, and imagine new areas of research. To further assist your work, this text provides representative drawings, many of them new, for most families of fishes, allowing you to make visual connections to the information as you read. It also contains many references to the classical as well as the most up-to-date literature on fish relationships, based on both morphology and molecular biology. The study of fishes is one that certainly requires dedication—and access to reliable, accurate information. With more than 30,000 known species of sharks, rays, and bony fishes, both lobe-finned and ray-finned, you will need to master your area of study with the assistance of the best reference materials available. This text will help you bring your knowledge of fishes to the next level. Explore the anatomical characteristics, distribution, common and scientific names, and phylogenetic relationships of fishes Access biological and anatomical information on more than 515 families of living fishes Better appreciate the complexities and controversies behind the modern view of fish relationships Refer to an extensive bibliography, which points you in the direction of additional, valuable, and up-to-date information, much of it published within the last few years Fishes of the World, Fifth Edition is an invaluable resource for professional ichthyologists, aquatic ecologists, marine biologists, fish breeders, aquaculturists, and conservationists.

Download or read book Rays of the World written by Peter Last and published by CSIRO PUBLISHING. This book was released on 2016-12 with total page 801 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rays are among the largest fishes and evolved from shark-like ancestors nearly 200 million years ago. They share with sharks many life history traits: all species are carnivores or scavengers; all reproduce by internal fertilisation; and all have similar morphological and anatomical characteristics, such as skeletons built of cartilage. Rays of the World is the first complete pictorial atlas of the world’s ray fauna and includes information on many species only recently discovered by scientists while undertaking research for the book. It includes all 26 families and 633 valid named species of rays, but additional undescribed species exist for many groups. Rays of the World features a unique collection of paintings of all living species by Australian natural history artist Lindsay Marshall, compiled as part of a multinational research initiative, the Chondrichthyan Tree of Life Project. Images sourced from around the planet were used by the artist to illustrate the fauna. This comprehensive overview of the world’s ray fauna summarises information such as general identifying features and distributional information about these iconic, but surprisingly poorly known, fishes. It will enable readers to gain a better understanding of the rich diversity of rays and promote wider public interest in the group. Rays of the World is an ideal reference for a wide range of readers, including conservationists, fishery managers, scientists, fishers, divers, students and book collectors.

Download or read book NOAA Technical Report NMFS written by and published by . This book was released on 1984 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evolution and Development of Fishes written by Zerina Johanson and published by Cambridge University Press. This book was released on 2019-01-10 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fish, or lower vertebrates, occupy the basal nodes of the vertebrate phylogeny, and are therefore crucial in interpreting almost every feature of more advanced vertebrates, including amphibians, reptiles, birds and mammals. Recent research focuses on combining evolutionary observations - primarily from the fish fossil record - with developmental data from living fishes, in order to better interpret evolutionary history and vertebrate phylogeny. This book highlights the importance of this research in the interpretation of vertebrate evolution, bringing together world-class palaeontologists and biologists to summarise the most interesting, current and cutting-edge topics in fish evolution and development. It will be an invaluable tool for researchers in early vertebrate palaeontology and evolution, and those particularly interested in the interface between evolution and development.

Download or read book VanDeGraaff s Photographic Atlas for the Zoology Laboratory 8e written by Byron J Adams and published by Morton Publishing Company. This book was released on 2018-02-01 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: This full-color photographic atlas provides clear photographs and drawings of tissues and organisms similar to specimens seen in a zoology laboratory. It is designed to accompany any zoology text or laboratory manual and delivers a balanced visual representation of the major groups of zoological organisms.

Download or read book Exploring Biology in the Laboratory Core Concepts written by Murray P. Pendarvis and published by Morton Publishing Company. This book was released on 2019-02-01 with total page 643 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exploring Biology in the Laboratory: Core Concepts is a comprehensive manual appropriate for introductory biology lab courses. This edition is designed for courses populated by nonmajors or for majors courses where abbreviated coverage is desired. Based on the two-semester version of Exploring Biology in the Laboratory, 3e, this Core Concepts edition features a streamlined set of clearly written activities with abbreviated coverage of the biodiversity of life. These exercises emphasize the unity of all living things and the evolutionary forces that have resulted in, and continue to act on, the diversity that we see around us today.