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 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 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 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 Sharks of the World written by Leonard J. V. Compagno and published by Food & Agriculture Org.. This book was released on 2001 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: An extensively rewritten, revised and updated version of the original FAO Catalogue of Sharks of the World. This volume reviews all 15 families, 25 genera and 57 species of living bullhead, mackerel and carpet sharks, including certain well-established but currently undescribed species, mainly from Australia.

Download or read book Sharks Skates and Rays written by William C. Hamlett and published by JHU Press. This book was released on 1999-05-21 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: Successor to the classic work in shark studies, The Elasmobranch Fishes by John Franklin Daniel (first published 1922, revised 1928 and 1934), Sharks, Skates, and Rays provides a comprehensive and up-to-date overview of elasmobranch morphology. Coverage has been expanded from anatomy to include modern information on physiology and biochemistry. The new volume also provides equal treatment for skates and rays. The authors present general introductory material for the relative novice but also review the latest technical citations, making the book a valuable primary reference resource. More than 200 illustrations supplement the text.

Download or read book Fish Physiology written by and published by Academic Press. This book was released on 1983-12-01 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fish Physiology

Download or read book Interrelationships of Fishes written by Melanie L.J. Stiassny and published by Academic Press. This book was released on 1996-11-08 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprising by far the largest and most diverse group of vertebrates, fishes occupy a broad swathe of habitats ranging from the deepest ocean abyss to the highest mountain lakes. Such incredible ecological diversity and the resultant variety in lifestyle, anatomy, physiology and behavior, make unraveling the evolutionary history of fishes a daunting task. The successor of a classic volume by the same title, Interrelationships of Fishes, provides the latest in the "state of the art" of systematics and classification for many of the major groups of fishes. In providing a sound phylogenetic framework from leading authorities in the field, this book is an indispensable reference for a broad range of biologists, especially students of fish behavior, anatomy, physiology, molecular biology, genetics and ecology--in fact, anyone who wishes to interpret their work on fishes in an evolutionary context. Provides thorough and comprehensive treatment of the Phylogency of fishes Assembles an International team of expert contributors Useful to a wide variety of fish biologists

Download or read book Fishes and the Break up of Pangaea written by Lionel Cavin and published by Geological Society of London. This book was released on 2008 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume, in honour of Peter L. Forey, is about fishes as palaeobiogeographic indicators in the Mesozoic and Cenozoic. The last 250 million years in the history of Earth have witnessed the break-up of Pangaea, affecting the biogeography of organisms. Fishes occupy almost all freshwater and marine environments, making them a good tool to assess palaeogeographic models. The volume begins with studies of Triassic chondrichthyans and lungfishes, with reflections on Triassic palaeogeography. Phylogeny and distribution of Late Jurassic neoselachians and basal teleosts are broached, and are followed by five papers about the Cretaceous, dealing with SE Asian sharks, South American ray-finned fishes and coelacanths, European characiforms, and global fish palaeogeography. Then six papers cover Tertiary subjects, such as bony tongues, eels, cypriniforms and coelacanths. There is generally a good fit between fish phylogenies and the evolution of the palaeogeographical pattern, although a few discrepancies question details of current palaeogeographic models and/or some aspects of fish phylogeny.

Download or read book Alternative life history styles of fishes written by Michael N. Bruton and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book DIVERSITY OF CHORDATES COMPARATIVE ANATOMY Zoology Paper II English Edition written by Dr. Lalit Gupta and published by Thakur Publication Private Limited. This book was released on 2023-07-01 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore the English Edition e-book for B.Sc. 5th Semester, focusing on 'Diversity of Chordates and Comparative Anatomy' (Zoology Paper-II). This comprehensive e-book, published by Thakur Publication Pvt. Ltd., is aligned with the NEP and follows the Common Minimum Syllabus for all UP State Universities. Dive into the fascinating world of chordates and comparative anatomy, enhancing your understanding of zoology. Access this valuable resource and excel in your B.Sc. studies with Thakur Publication's e-book.

Download or read book Zoology Diversity of Chordates written by Prof. Prem Ranjan and published by Thakur Publication Private Limited. This book was released on 2024-01-01 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Buy Latest ( Zoology ) Diversity of Chordates e-Book in English Edition for B.Sc 2nd Semester Bihar State By Thakur publication.

Download or read book Chapterwise Instant Notes Class 11 Biology Book written by MTG Learning Media and published by MTG Learning Media. This book was released on with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: MTG presents a new resource to help CBSE board students with this masterpiece – Chapterwise Instant Notes. This book is the best revision resource for CBSE students as it has instant chapter-wise notes for completing the latest CBSE syllabus. The book comprises chapter-wise quick recap notes and then a lot of subjective questions which covers the whole chapter in the form of these questions.

Download or read book ZOOLOGY ANIMAL DIVERSITY written by Dr. Faiza Rifat and published by Thakur Publication Private Limited. This book was released on 2023-12-01 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: e-book of (ZOOLOGY) ANIMAL DIVERSITY, B.Sc, First Semester for Three/Four Year Undergraduate Programme for University of Rajasthan, Jaipur Syllabus as per NEP (2020).

Download or read book Encyclopedia of Fish Physiology written by and published by Academic Press. This book was released on 2011-06-01 with total page 2275 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fish form an extremely diverse group of vertebrates. At a conservative estimate at least 40% of the world's vertebrates are fish. On the one hand they are united by their adaptations to an aquatic environment and on the other they show a variety of adaptations to differing environmental conditions - often to extremes of temperature, salinity, oxygen level and water chemistry. They exhibit an array of behavioural and reproductive systems. Interesting in their own right, this suite of adaptive physiologies provides many model systems for both comparative vertebrate and human physiologists. This four volume encyclopedia covers the diversity of fish physiology in over 300 articles and provides entry level information for students and summary overviews for researchers alike. Broadly organised into four themes, articles cover Functional, Thematic, and Phylogenetic Physiology, and Fish Genomics. Functional articles address the traditional aspects of fish physiology that are common to all areas of vertebrate physiology including: Reproduction, Respiration, Neural (Sensory, Central, Effector), Endocrinology, Renal, Cardiovascular, Acid-base Balance, Osmoregulation, Ionoregulation, Digestion, Metabolism, Locomotion, and so on. Thematic Physiology articles are carefully selected and fewer in number. They provide a level of integration that goes beyond the coverage in the Functional Physiology topics and include discussions of Toxicology, Air-breathing, Migrations, Temperature, Endothermy, etc. Phylogenetic Physiology articles bring together information that bridges the physiology of certain groupings of fishes where the knowledge base has a sufficient depth and breadth and include articles on Ancient Fishes, Tunas, Sharks, etc. Genomics articles describe the underlying genetic component of fish physiology and high light their suitability and use as model organisms for the study of disease, stress and physiological adaptations and reactions to external conditions. Winner of a 2011 PROSE Award Honorable Mention for Multivolume Science Reference from the Association of American Publishers The definitive encyclopedia for the field of fish physiology Three volumes which comprehensively cover the entire field in over 300 entries written by experts Detailed coverage of basic functional physiology of fishes, physiological themes in fish biology and comparative physiology amongst taxonomic Groups Describes the genomic bases of fish physiology and biology and the use of fish as model organisms in human physiological research Includes a glossary of terms

Download or read book Resurrecting the Shark written by Susan Ewing and published by Simon and Schuster. This book was released on 2017-04-04 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: A prehistoric mystery. A fossil so mesmerizing that it boggled the minds of scientists for more than a century—until a motley crew of modern day shark fanatics decided to try to bring the monster-predator back to life. In 1993, Alaskan artist and paleo-fish freak Ray Troll stumbled upon the weirdest fossil he had ever seen—a platter-sized spiral of tightly wound shark teeth. This chance encounter in the basement of the Natural History Museum of Los Angeles County sparked Troll's obsession with Helicoprion, a mysterious monster shark from deep time. In 2010, tattooed amateur strongman and returning Iraq War veteran Jesse Pruitt was also severely smitten by a Helicoprion fossil in a museum basement in Idaho. These two bizarre-shark disciples found each other, and an unconventional band of collaborators grew serendipitously around them, determined to solve the puzzle of the tooth whorl once and for all. Helicoprion was a Paleozoic chondrichthyan about the size of a modern great white shark, with a circular saw of teeth centered in its lower jaw—a feature unseen in the shark world before or since. For some ten million years, long before the Age of Dinosaurs, Helicoprion patrolled the shallow seas around the supercontinent Pangaea as the apex predator of its time. Just a few tumultuous years after Pruitt and Troll met, imagination, passion, scientific process, and state-of-the-art technology merged into an unstoppable force that reanimated the remarkable creature—and made important new discoveries. In this groundbreaking book, Susan Ewing reveals these revolutionary insights into what Helicoprion looked like and how the tooth whorl functioned—pushing this dazzling and awe-inspiring beast into the spotlight of modern science