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Books > Science & Mathematics > Biology, life sciences > Zoology & animal sciences > Vertebrates > Fishes (ichthyology)

Fishes in Lagoons and Estuaries in the Mediterranean 2 - Sedentary Fish (Hardcover, Volume 2): H Kara Fishes in Lagoons and Estuaries in the Mediterranean 2 - Sedentary Fish (Hardcover, Volume 2)
H Kara
R3,913 Discovery Miles 39 130 Ships in 12 - 17 working days

Fishes in Lagoons and Estuaries in the Mediterranean 2 extensively covers the systematic, biological, ecological, behavioral and genetic aspects of the sedentary fishes that spend their entire lifecycle in the coastal fringes, sometimes referred to as "extreme environments". This second volume of a set of books on Mediterranean ichthyofauna presents in-depth scientific, historical and current knowledge at the family, genus and species levels. Designed to give rapid and comprehensive access to the body of knowledge on Mediterranean lagoonal and estuarine sedentary fishes (over 1200 scientific works are referenced), this volume is for anyone involved in the use, management or protection of natural environments and their populations, including ecobiologists, geographers, engineers, teachers, students and researchers.

Centrarchid Fishes - Diversity, Biology, and Conservation (Hardcover): S. Cooke Centrarchid Fishes - Diversity, Biology, and Conservation (Hardcover)
S. Cooke
R6,184 Discovery Miles 61 840 Ships in 12 - 17 working days

Centrarchid fishes, also known as freshwater sunfishes, include such prominent species as the Largemouth Bass, Smallmouth Bass and Bluegill. They are endemic to Eastern North America where they form part of a multi-million dollar sports fishing industry, but they have also been widely introduced around the globe by recreational anglers, in aquaculture programs and by government fisheries agencies. Centrarchid Fishes provides comprehensive coverage of all major aspects of this ecologically and commercially important group of fishes. Coverage includes diversity, ecomorphology, phylogeny and genetics, hybridization, reproduction, early life history and recruitment, feeding and growth, ecology, migrations, bioenergetics, physiology, diseases, aquaculture, fisheries management and conservation. Chapters have been written by well-known and respected scientists and the whole has been drawn together by Professors Cooke and Philipp, themselves extremely well respected in the area of fisheries management and conservation. Centrarchid Fishes is an essential purchase for all fish biologists, ecologists, fisheries managers and fish farm personnel who work with centrarchid species across the globe.

Endocrine Sex Differentiation in Fish (Hardcover, New): T. J Pandian Endocrine Sex Differentiation in Fish (Hardcover, New)
T. J Pandian
R3,712 Discovery Miles 37 120 Ships in 10 - 15 working days

Of all vertebrates, fish exhibit unparalleled diversity of sexual plasticity and flexibility, ranging from gonochorism to unisexualism, and exceptional patterns of functional hermaphroditism. Fish farming and monosex aquaculture have led to reproductive dysfunction with males producing less milt, and females failing to ovulate and spawn. This book brings together relevant information on the role of the endocrine system on sexual differentiation in fish, and bridges the gap between molecular endocrinologists and fishery scientists.

Phylogeny, Anatomy and Physiology of Ancient Fishes (Paperback): Giacomo Zaccone, Konrad Dabrowski, Michael S. Hedrick, Jorge M... Phylogeny, Anatomy and Physiology of Ancient Fishes (Paperback)
Giacomo Zaccone, Konrad Dabrowski, Michael S. Hedrick, Jorge M O Fernandes, Jos M. Icardo
R1,931 Discovery Miles 19 310 Ships in 12 - 17 working days

This book on ancient fishes unites the work of many specialists coming from different areas of biology. Hagfishes, lungfishes, Chondrosteans, and Holosteans constitute the main subject of study. Fossil records and extant species are compared to establish the conservation or the degeneration of specific characters. However, phylogenetic relationships have mostly been revisited in the light of new molecular and developmental data. The morphology of several organs is also revisited. This volume includes a phylogenetic account of the cardiac outflow tract, and the particulars of the heart and circulation in lungfishes. The control of breathing and the lung-swim bladder issue is discussed. The developmental anatomy of the sturgeon gut and accounts of the gut structure in lungfishes and garfishes are also included. Biochemical and physiological aspects of the behavior of lungfishes and gars are presented. Reports on the fish olfactory system, and on the amazing slime glands of hagfishes, are also covered.

Fish Cytogenetic Techniques - Ray-Fin Fishes and Chondrichthyans (Paperback): Catherine Ozouf-Costaz, Eva Pisano, Fausto... Fish Cytogenetic Techniques - Ray-Fin Fishes and Chondrichthyans (Paperback)
Catherine Ozouf-Costaz, Eva Pisano, Fausto Foresti, Lurdes Foresti De Almeida Toledo
R1,919 Discovery Miles 19 190 Ships in 12 - 17 working days

Recent advances in fish cytogenetics have enhanced the interest in chromosome analysis in both fundamental (systematics and comparative genomics among fishes and other vertebrate groups) and applied (aquaculture, conservation and response to pollutants, whole genome sequencing of model fish species) research. Although the genomic material, the chromosomes, is basically the same in the various organisms, experience has clearly shown that fish chromosomes have to be handled with specific protocols. In laboratories around the world, traditional cytogenetic techniques and molecular cytogenetics have seen a vast improvement but the technical details and protocols are often not published in scientific journals because of constraints in format and size and therefore they are not accessible to the whole scientific community. These shortcomings are very well known to fish cytogeneticists and the idea to prepare a specific manual was first discussed during the first "Workshop of Fish Cytogenetics" held in Concarneau (France), in 1992. Resulting from the above workshop, a draft compilation of the techniques and protocols in fish cytogenetics available at that time had been produced and distributed privately, but never published. There does not exist, at present, any published handbook or manual specifically dealing with fish cytogenetics. This book fills this void by bringing together and updating the main techniques so that the traditional methods can be standardized. Moreover, this book includes novel developments or improvements; some of the protocols provided here are practically unknown to the scientific community and even now unpublished.

Pollution and Fish Health in Tropical Ecosystems (Hardcover): Eduardo Alves de Almeida, Ciro Alberto de Oliveira Ribeiro Pollution and Fish Health in Tropical Ecosystems (Hardcover)
Eduardo Alves de Almeida, Ciro Alberto de Oliveira Ribeiro
R3,937 Discovery Miles 39 370 Ships in 12 - 17 working days

The tropical zone contains the highest diversity of fish species on the planet. Many of these species are being continuously exposed to pollutants that pose serious hazards to fish health thereby posing serious risks for entire fish populations. This book presents information about the different responses of fish to pollutants from the molecular levels to changes in behaviour, with emphasis on tropical species. It also discusses current topics such as the adverse effects of emerging compounds like nanoparticles and endocrine disruptor chemicals.

Quantitative Fish Dynamics (Hardcover): Terrance J. Quinn, Richard B. Deriso Quantitative Fish Dynamics (Hardcover)
Terrance J. Quinn, Richard B. Deriso
R5,771 R4,867 Discovery Miles 48 670 Save R904 (16%) Ships in 12 - 17 working days

This book serves as an advanced text on fisheries and fishery population dynamics and as a reference for fisheries scientists. It provides a thorough treatment of contemporary topics in quantitative fisheries science and emphasizes the link between biology and theory by explaining the assumptions inherent in the quantitative methods. The analytical methods are accessible to a wide range of biologists, and the book includes numerous examples. The book is unique in covering such advanced topics as optimal harvesting, migratory stocks, age-structured models, and size models.

The Book of Frogs - A Life-Size Guide to Six Hundred Species from Around the World (Hardcover): Tim Halliday The Book of Frogs - A Life-Size Guide to Six Hundred Species from Around the World (Hardcover)
Tim Halliday
R1,813 R1,536 Discovery Miles 15 360 Save R277 (15%) Ships in 10 - 15 working days

With over 7,000 known species, frogs display a stunning array of forms and behaviors. A single gram of the toxin produced by the skin of the Golden Poison Frog can kill 100,000 people. Male Darwin's Frogs carry their tadpoles in their vocal sacs for sixty days before coughing them out into the world. The Wood Frogs of North America freeze every winter, reanimating in the spring from the glucose and urea that prevent cell collapse. The Book of Frogs commemorates the diversity and magnificence of all of these creatures, and many more. Six hundred of nature's most fascinating frog species are displayed, with each entry including a distribution map, sketches of the frogs, species identification, natural history, and conservation status. Life-size color photos show the frogs at their actual size--including the colossal seven-pound Goliath Frog. Accessibly written by expert Tim Halliday and containing the most up-to-date information, The Book of Frogs will captivate both veteran researchers and amateur herpetologists. As frogs increasingly make headlines for their troubling worldwide decline, the importance of these fascinating creatures to their ecosystems remains underappreciated. The Book of Frogs brings readers face to face with six hundred astonishingly unique and irreplaceable species that display a diverse array of adaptations to habitats that are under threat of destruction throughout the world.

Annual Fishes - Life History Strategy, Diversity, and Evolution (Hardcover): Nibia Berois, Graciela Garcia, Rafael O. de Sa Annual Fishes - Life History Strategy, Diversity, and Evolution (Hardcover)
Nibia Berois, Graciela Garcia, Rafael O. de Sa
R3,946 Discovery Miles 39 460 Ships in 12 - 17 working days

Annual Fishes: Life History Strategy, Diversity, and Evolution is the first comprehensive reference on current knowledge of diverse species that exhibit unique survival strategies and provide important models for basic and applied research. This work fills a void, covering the life cycle, reproductive biology, evolutionary ecology, reproductive behavior, sexual selection, genetics, speciation, and integrative and conservation strategies of annual fishes Bringing together researchers in different areas of annual fishes to summarize previous work, overview the current research, and highlight promising areas of research, the book is organized into three sections focusing on: Diversity, life history, and reproductive biology Ecology and conservation Evolution The book provides a thorough understanding of the complexity of annual fishes and emphasizes their usefulness as a unique model organism for studies in vertebrate biology, particularly in areas such as speciation and senescence. It also notes the gaps in knowledge that challenge future research and encourages the continued expansion and development of research studies on annual fishes to address these gaps so that general vertebrate biology can be better understood. It serves as a valuable resource for scientists in a range of disciplines such as ichthyology, zoology, developmental and evolutionary biology, molecular biology and genetics, and ecology.

Marine Fisheries Ecology (Paperback): S. Jennings Marine Fisheries Ecology (Paperback)
S. Jennings
R1,788 Discovery Miles 17 880 Ships in 12 - 17 working days

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This topical and exciting textbook describes fisheries exploitation, biology, conservation and management, and reflects many recent and important changes in fisheries science. These include growing concerns about the environmental impacts of fisheries, the role of ecological interactions in determining population dynamics, and the incorporation of uncertainty and precautionary principles into management advice. The book draws upon examples from tropical, temperate and polar environments, and provides readers with a broad understanding of the biological, economic and social aspects of fisheries ecology and the interplay between them. As well as covering 'classical' fisheries science, the book focuses on contemporary issues such as industrial fishing, poverty and conflict in fishing communities, marine reserves, the effects of fishing on coral reefs and by-catches of mammals, seabirds and reptiles. The book is primarily written for students of fisheries science and marine ecology, but should also appeal to practicing fisheries scientists and those interested in conservation and the impacts of humans on the marine environment.

* particularly useful are the modelling chapters which explain the difficult maths involved in a user-friendly manner
* describes fisheries exploitation, conservation and management in tropical, temperate and polar environments
* broad coverage of 'classical' fisheries science
* emphasis on new approaches to fisheries science and the ecosystem effects of fishing
* examples based on the latest research and drawn from authors' international experience
* comprehensively referenced throughout
* extensively illustrated with photographs and line drawings

Zebrafish Model for Biomedical Research (Hardcover, 1st ed. 2022): Prasan R. Bhandari, Kala Kumar Bharani, Amit Khurana Zebrafish Model for Biomedical Research (Hardcover, 1st ed. 2022)
Prasan R. Bhandari, Kala Kumar Bharani, Amit Khurana
R6,141 Discovery Miles 61 410 Ships in 12 - 17 working days

This book provides the latest information on the significance of zebrafish as an ideal model for researching the biomedical field, with references. This book also focused on the evidence of zebrafish as a model in cardiovascular, neurologic, psychiatric and metabolic research. In addition, the book also includes the research carried out on zebrafish in hepatic, renal, ophthalmic, and ENT related areas. Contributed chapters come from the most prominent laboratories working in this field, which provides a unique perspective on zebrafish models from a wide spectrum of the research community. In addition, the book offers a detailed analysis of the most current research in the area for specific zebrafish models including specific research in the area of skin disorders, endocrine diseases, nutritional disorders, gastrointestinal, hematological disorders and cancer. The compilation of chapters in the volume culminates into a comprehensive and definitive text on zebrafish and its suitability for modeling various diseases, providing a critical resource on the potential attributes of the zebrafish as a pharmacological model. In terms of scope, this book is a useful tool for young researchers, professors and pharmaceutical scientists for understanding the significance of zebrafish as an emerging pharmacological model that can significantly aid in the process of drug discovery and development.

In Situ Bioavailability and Toxicity of Organic Chemicals in Aquatic Systems (Hardcover, 1st ed. 2022): Thomas-Benjamin Seiler,... In Situ Bioavailability and Toxicity of Organic Chemicals in Aquatic Systems (Hardcover, 1st ed. 2022)
Thomas-Benjamin Seiler, Markus Brinkmann
R4,219 Discovery Miles 42 190 Ships in 12 - 17 working days

This detailed volume examines the complex study of the assessment of in situ bioavailability and toxicity of organic chemicals in aquatic systems with a toolbox of reliable techniques. Beginning with a section on approaches for chemical analytical and bioanalytical techniques in bioavailability research, the book continues with methods to monitor effects in situ and conduct bioassays to assess the effects of complex environmental samples. It concludes with descriptions of various computational models. Written for the Methods in Pharmacology and Toxicology series, chapters feature the kind of expert implementation advice that leads to greater success in the field. Authoritative and versatile, In Situ Bioavailability and Toxicity of Organic Chemicals in Aquatic Systems serves as an ideal guide to aid in tackling the challenge of analyzing and understanding chemical pollution in aquatic systems.

Fishes in Lagoons and Estuaries in the Mediterranean 3A - Migratory Fish (Hardcover): H Kara Fishes in Lagoons and Estuaries in the Mediterranean 3A - Migratory Fish (Hardcover)
H Kara
R3,909 Discovery Miles 39 090 Ships in 12 - 17 working days

Based on the most recent scientific data, and without neglecting historical publications, Fishes in Lagoons and Estuaries in the Mediterranean 3 comprehensively details Mediterranean lagoonal-marine migratory fish. It provides information regarding their systematics, eobiology, ethology, genetics and their exploitation. After a general categorization of the species represented, this volume, third in a set of books on Mediterranean ichthyofauna, offers a synthesis of the knowledge acquired from 1890 to the present day for each of the 21 species most frequently found in Mediterranean lagoons and estuaries. These species are detailed across the two parts of volume 3. The scientific data presented in this book concern the species' lagoon life as much as their marine life, and are therefore of particular interest for both the management of fish stocks and for the conservation of species. Designed to give rapid and comprehensive access to the body of knowledge on Mediterranean lagoonal and estuarine migratory fishes, this volume is for anyone involved in the use, management or protection of natural environments and their populations, including ecobiologists, geographers, engineers, teachers, students and researchers.

Biological Clock in Fish (Paperback): Ewa Kulczykowska, Wlodzimierz Popek, B.G. Kapoor Biological Clock in Fish (Paperback)
Ewa Kulczykowska, Wlodzimierz Popek, B.G. Kapoor
R1,924 Discovery Miles 19 240 Ships in 12 - 17 working days

Each organism has its own internal biological clock, which is reset by environmental cues (Zeitgebers), thus keeping it synchronized with the external environment. It is a chemically based oscillating system within cells, relying on molecular feedback loops. Circadian biological clocks exist in most organisms. What is so special about the clock in fish? Where is it located-in the retina, inside the brain, or in the pineal? What is the molecular basis of its function? How is the clock able to keep time in the absence of environmental cues? Although biological clocks have been intensively studied over the past four decades, only recently have the tools needed to examine the molecular basis of circadian rhythms become available. This book reviews the state of knowledge in sufficient detail and presents the latest contributions to the field, showing fish provide a unique model of the circadian biological clock.

The Histology of Fishes (Hardcover): Krzysztof Formicki, Frank Kirschbaum The Histology of Fishes (Hardcover)
Krzysztof Formicki, Frank Kirschbaum
R5,606 Discovery Miles 56 060 Ships in 12 - 17 working days

The book is a multi-authored book of 18 chapters comprising the state of the art work of all relevant topics on modern fish histology from 28 authors from ten countries. The topics include Introduction to Histological Techniques, Integument, Fish Skeletal Tissues, Muscular System, Structure and Function of Electric Organs, Digestive System, Glands of the Digestive Tract, Swim Bladder, Kidney, Ovaries and Eggs, Egg Envelopes, Testis Structure, Spermatogenesis, and Spermatozoa in Teleost Fishes, Cardiovascular System and Blood, Immune System of Fish, Gills: Respiration and Ionic-Osmoregulation, Sensory Organs, Morphology and Ecomorphology of the Fish Brain, and Endocrine System. Structural and functional aspects are treated and in a comparative way fish diversity at various taxonomic levels is integrated.

Boas of the West Indies - Evolution, Natural History, and Conservation (Hardcover): R. Graham Reynolds, Robert W Henderson,... Boas of the West Indies - Evolution, Natural History, and Conservation (Hardcover)
R. Graham Reynolds, Robert W Henderson, Luis M Diaz, Tomas M Rodriguez-Cabrera, Alberto R Puente-Rolon; Foreword by …
R1,454 R1,354 Discovery Miles 13 540 Save R100 (7%) Ships in 12 - 17 working days

Boas of the West Indies is a comprehensive survey of boid snakes, commonly known as boas, found on the islands of the Lucayan Archipelago, the Greater Antilles, and the Lesser Antilles. Bringing together the expertise of leading herpetologists R. Graham Reynolds, Robert W. Henderson, Luis M. Diaz, Tomas Michel Rodriguez, and Alberto R. Puente-Rolon, this volume synthesizes established knowledge and new findings on the evolutionary biology, natural history, and conservation statuses of these iconic snakes. One of the most ecologically diverse snake families, boas have inhabited the West Indies for millions of years. From the Cuban boa, which in many folk legends may grow to over twice a person's height, to the Hispaniolan vineboa, discovered only in 2020 and known to measure less than a meter long, Boas of the West Indies examines the eighteen species extant on these islands along with several others now extinct. Species accounts include details such as phenotypic traits, distribution, and behavior. Introductory chapters discuss the history of human-boa interaction, differences between West Indian and neotropical mainland boids, current conservation efforts, and more. Illustrated with over a hundred color photographs and range maps, Boas of the West Indies is a benchmark reference for herpetologists, conservationists, and snake hobbyists that expands our knowledge of-and celebrates-these fascinating creatures so integral to the ecology of these islands.

Biology of Parrotfishes (Hardcover): Andrew S. Hoey, Roberta M. Bonaldo Biology of Parrotfishes (Hardcover)
Andrew S. Hoey, Roberta M. Bonaldo
R5,734 Discovery Miles 57 340 Ships in 12 - 17 working days

Parrotfish are found on almost every coral reef in the world. This ubiquity and uniqueness of their feeding action make them one of the most important groups of fishes within coral reef ecosystems. But why, exactly, are parrotfish so important to reefs? Can the evolution of a particular jaw morphology and feeding action really have had such a large impact on the health and functioning of the world's coral reefs? This book introduces the reader to this fascinating group of fishes (Labridae, Scarinae), from the morphological innovation of a jaw that has the power to bite through solid calcium carbonate, to the threats currently faced by parrotfish populations around the world. It contains new insights into their diet and food processing ability, and lifehistories, and concludes with an overview of emerging and future research directions.

Reproductive Biology and Phylogeny of Chondrichthyes - Sharks, Batoids, and Chimaeras, Volume 3 (Hardcover): William C. Hamlett Reproductive Biology and Phylogeny of Chondrichthyes - Sharks, Batoids, and Chimaeras, Volume 3 (Hardcover)
William C. Hamlett
R6,361 Discovery Miles 63 610 Ships in 10 - 15 working days

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 phylogeny of chondrichthyan fishes. Coverage includes oogenesis, spermatogenesis, gestation, regulation of reproductive tract function, sperm storage, nutrient provision, placentation, and phylogeny. New and exciting data is presented including the idea that yolk sac viviparity is the plesiomorphic state rather than oviparity.

An Introduction to Fish Migration (Hardcover): Pedro Morais, Francoise Daverat An Introduction to Fish Migration (Hardcover)
Pedro Morais, Francoise Daverat
R4,089 Discovery Miles 40 890 Ships in 12 - 17 working days

Since the publication of The Migrations of Fish by Prof. Alexander Meek in 1916, a number of books have been published on this subject. However, most of these books only cover one type of migratory mechanisms. This book aims to overcome this drawback by presenting a comprehensive coverage of all life history strategies-potadromy, anadromy, catadromy, amphidromy and oceanodromy in one book. The first section of this book reviews the history of fish migration studies, the main definitions and concepts related with fish migration and the main trends and challenges of fish migration research. The second section describes the main processes and patterns associated with all migratory life history strategies, as well as the main problems associated with their conservation. Finally, the third section provides examples of the main methodologies used to study fish migration. This book was conceived with the objective to provide undergraduate and graduate students and researchers with a comprehensive book on which they could rely.

Phylogeny, Anatomy and Physiology of Ancient Fishes (Hardcover): Giacomo Zaccone, Konrad Dabrowski, Michael S. Hedrick, Jorge M... Phylogeny, Anatomy and Physiology of Ancient Fishes (Hardcover)
Giacomo Zaccone, Konrad Dabrowski, Michael S. Hedrick, Jorge M O Fernandes, Jos M. Icardo
R5,263 Discovery Miles 52 630 Ships in 12 - 17 working days

This book on ancient fishes unites the work of many specialists coming from different areas of biology. Hagfishes, lungfishes, Chondrosteans, and Holosteans constitute the main subject of study. Fossil records and extant species are compared to establish the conservation or the degeneration of specific characters. However, phylogenetic relationships have mostly been revisited in the light of new molecular and developmental data. The morphology of several organs is also revisited. This volume includes a phylogenetic account of the cardiac outflow tract, and the particulars of the heart and circulation in lungfishes. The control of breathing and the lung-swim bladder issue is discussed. The developmental anatomy of the sturgeon gut and accounts of the gut structure in lungfishes and garfishes are also included. Biochemical and physiological aspects of the behavior of lungfishes and gars are presented. Reports on the fish olfactory system, and on the amazing slime glands of hagfishes, are also covered.

The Fish in the Forest - Salmon and the Web of Life (Hardcover): Dale Stokes The Fish in the Forest - Salmon and the Web of Life (Hardcover)
Dale Stokes; Photographs by Doc White
R717 R540 Discovery Miles 5 400 Save R177 (25%) Out of stock

The Fish in the Forest is an elegantly written, beautifully illustrated exploration of the complex web of relationships between the salmon of the Pacific Northwest and the surrounding ecosystem. Dale Stokes shows how nearly all aspects of this fragile ecosystem--from streambeds to treetops, from sea urchins to orcas to bears, from rain forests to kelp forests--are intimately linked with the biology of the Pacific salmon. Illustrated with 70 stunning color photographs by Doc White, The Fish in the Forest demonstrates how the cycling of nutrients between the ocean and the land, mediated by the life and death of the salmon, is not only key to understanding the landscape of the north Pacific coast, but is also a powerful metaphor for all of life on earth.

Marine Finfish Aquaculture & the Environment (Hardcover): Stewart White Marine Finfish Aquaculture & the Environment (Hardcover)
Stewart White
R5,682 R5,063 Discovery Miles 50 630 Save R619 (11%) Ships in 12 - 17 working days

This book provides a comprehensive review of some predominant environmental risks that marine fish cage aquaculture poses in the marine environment and designs and practices now in use to address these environmental risks in the U.S. and elsewhere. The book includes a critical review of the large body of scientific work published since 2000 on the environmental impacts of marine finfish aquaculture around the world. The purpose of this book is to provide a basic set of guidelines for risk managers and other decision makers to use all information available to assess the different ecological risks of marine fish aquaculture in a variety of marine ecosystems.

Carp & Catfish - Biology, Behavior & Conservation Strategies (Hardcover): Bradley Regan Carp & Catfish - Biology, Behavior & Conservation Strategies (Hardcover)
Bradley Regan
R5,132 R4,708 Discovery Miles 47 080 Save R424 (8%) Ships in 12 - 17 working days

In general, aquaculture and fish farming cause negative impacts on the environment and wild fish populations. One of the major problems is the escape of farmed fish, especially exotic species, which can alter the population dynamics and ecology of wild stocks. Therefore, the reduction or even extinction of natural stocks may occur through predation and/or competition for resources. This book discusses the biology, behaviour and conservation strategies of both carp and catfish.

Zebrafish - Topics in Reproduction, Toxicology & Development (Hardcover): Charles A Lessman, Ethan A Carver Zebrafish - Topics in Reproduction, Toxicology & Development (Hardcover)
Charles A Lessman, Ethan A Carver
R4,763 R4,147 Discovery Miles 41 470 Save R616 (13%) Ships in 12 - 17 working days

This informative new volume on the reproduction and development of zebrafish provides a timely and fundamental set of chapters presenting new data and critical reviews to the novice student and veteran researcher alike. It covers two major areas of zebrafish biology, reproduction and development, with toxicology emphasised in a number of chapters. Historically, reproductive biology of zebrafish has not been given the attention afforded to the more intensively studied aspects of embryonic development in this model species. In part, this may be due to fewer tools available to zebrafish reproductive biologists. However, with the advent of transparent juvenile and adult lines, new areas of reproduction research become visible both figuratively and literally. Two chapters are devoted to presenting these exciting new fish lines and examples of their use in research to the reproductive biology research community. Reproduction and embryonic development are a continuum which is emphasised in a new review on RNA-binding proteins in the zebrafish oocyte. It is increasingly clear that embryonic development is dependent upon factors present in the female gamete known collectively as "maternal effects", and these oocyte components are beautifully summarised in this chapter. Other chapters cover normal spawning periodicity and vitellogenic oocyte growth dynamics that should interest ovarian physiologists and those interested in zebrafish husbandry.

Salmon - Biology, Ecological Impacts & Economic Importance (Hardcover): Patrick T. K. Woo Salmon - Biology, Ecological Impacts & Economic Importance (Hardcover)
Patrick T. K. Woo; Donald J Noakes
R4,769 R4,153 Discovery Miles 41 530 Save R616 (13%) Ships in 12 - 17 working days

This book provides a good mix of both basic and applied topics in the hope that it will be useful and of interest to scientists working on finfish. It has 15 chapters written by 27 contributors and many of them are highly respected scientists. Given the global importance of salmon, contributors are from many countries including 11 from Japan and Russia. These authors bring slightly different and important perspectives to the book, and their expertise and research may not be known to many young scientists in Europe and in the Americas. The volume starts with an overview of salmon, their economic and social importance, and their impacts on the environment. Subsequent topics include morphological, physiological and behavioural differences between wild and farmed salmon; growth, food utilisation and water flow requirements of wild and hatchery salmon; the real and potential ecological impacts of sea cages and hatcheries; the potential use of waste product (gelatine) from the salmon industry; salmon behaviour and genetics including their broad applications that contribute to our understanding of fish biology, and nutritional and anti-nutritional factors in salmon culture. There are also chapters on environmental impacts and the economic importance of the commercial fishery and salmon farming industry; these are very important components of the industry, especially to the seafood sector.

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