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Author: Ron Douglas Publisher: Springer Science & Business Media ISBN: 9400904118 Category : Science Languages : en Pages : 531
Book Description
A question often asked of those of us who work in the seemingly esoteric field of fish vision is, why? To some of us the answer seems obvious - how many other visual scientists get to dive in a tropical lagoon in the name of science and then are able to eat their subjects for dinner? However, there are better, or at least scientifically more acceptable, reasons for working on the visual system of fish. First, in terms of numbers, fish are by far the most important of all vertebrate classes, probably accounting for over half (c. 22 000 species) of all recognized vertebrate species (Nelson, 1984). Furthermore, many of these are of commercial importance. Secondly, if one of the research aims is to understand the human visual system, animals such as fish can tell us a great deal, since in many ways their visual systems, and specifically their eyes, are similar to our own. This is fortunate, since there are several techniques, such as intracellular retinal recording, which are vital to our understanding of the visual process, that cannot be performed routinely on primates. The cold blooded fish, on the other hand, is an ideal subject for such studies and much of what we know about, for example, the fundamentals of information processing in the retina is based on work carried out on fish (e. g. Svaetichin, 1953).
Author: Ron Douglas Publisher: Springer Science & Business Media ISBN: 9400904118 Category : Science Languages : en Pages : 531
Book Description
A question often asked of those of us who work in the seemingly esoteric field of fish vision is, why? To some of us the answer seems obvious - how many other visual scientists get to dive in a tropical lagoon in the name of science and then are able to eat their subjects for dinner? However, there are better, or at least scientifically more acceptable, reasons for working on the visual system of fish. First, in terms of numbers, fish are by far the most important of all vertebrate classes, probably accounting for over half (c. 22 000 species) of all recognized vertebrate species (Nelson, 1984). Furthermore, many of these are of commercial importance. Secondly, if one of the research aims is to understand the human visual system, animals such as fish can tell us a great deal, since in many ways their visual systems, and specifically their eyes, are similar to our own. This is fortunate, since there are several techniques, such as intracellular retinal recording, which are vital to our understanding of the visual process, that cannot be performed routinely on primates. The cold blooded fish, on the other hand, is an ideal subject for such studies and much of what we know about, for example, the fundamentals of information processing in the retina is based on work carried out on fish (e. g. Svaetichin, 1953).
Author: F. Crescitelli Publisher: Springer Science & Business Media ISBN: 3642664687 Category : Medical Languages : en Pages : 816
Book Description
The vertebrate eye has been, and continues to be, an object of interest and of inquiry for biologists, physicists, chemists, psychologists, and others. Quite apart from its important role in the development of ophthalmology and related medical disciplines, the vertebrate eye is an exemplar of the ingenuity of living systems in adapting to the diverse and changing environments in which vertebrates have evolved. The wonder is not so much that the visual system, like other body systems, has been able to adapt in this way, but rather that these adaptations have taken such a variety of forms. In a previous volume in this series (VII/I) Eakin expressed admiration for the diversity of invertebrate photoreceptors. A comparable situation exists for the vertebrate eye as a whole and one object of this volume is to present to the reader the nature of this diversity. One result of this diversification of ocular structures and properties is that the experimental biologist has available a number of systems for study that are unique or especially favorable for the investigation of particular questions in visual science or neurobiology. This volume includes some examples of progress made by the use of such specially selected vertebrate systems. It is our hope that this comparative approach will continue to reveal new and useful preparations for the examination of important questions.
Author: Gerhard von der Emde Publisher: Springer Science & Business Media ISBN: 9400710607 Category : Medical Languages : en Pages : 393
Book Description
Fish comprise more than 50% of all living vertebrates and are found in a wide range of highly diverse habitats like the deep sea, the shoreline, tide pools, tropical streams and sweetwater ponds. During evolution, the senses of fish have adapted to the physical conditions of the environment in which different species live. As a result, the senses of fish exhibit a remarkable diversity that allows different species to deal with the physical constraints imposed by their habitat. In addition, fish have evolved several `new' sensory systems that are unique to the aquatic environment. In this book, examples of adaptation and refinement are given for six sensory systems: The visual system, The auditory system, The olfactory system, The mechanosensory lateral line system, The taste system, The electrosensory system. In each case, the environmental conditions under which a particular group of fish lives are analyzed. This is followed by a description of morphology and physiology of the sensory system and by an evaluation of its perceptional capabilities. Finally, the sensory adaptations to the particular conditions that prevail in the habitat of a species are highlighted. The various examples from different groups of fish presented in this book demonstrate the impressive capability of fish sensory systems to effectively overcome physical problems imposed by the environment.
Author: Tony J. Pitcher Publisher: Springer Science & Business Media ISBN: 1468482610 Category : Science Languages : en Pages : 559
Book Description
This book is about the behaviour of teleosts, a well-defined, highly successful, taxonomic group of vertebrate animals sharing a common body plan and forming the vast majority of living bony fishes. There are weH over 22000 living species of teleosts, including nearly all those of importance in com mercial fisheries and aquaculture. Teleosts are represented injust about every conceivable aquatic environment from temporary desert pools to the deep ocean, from soda lakes to sub-zero Antarctic waters. Behaviour is the primary interface between these effective survival machines and their environment: behavioural plasticity is one of the keys to their success. The study of animal behaviour has undergone revolutionary changes in the past decade under the dual impact of behavioural ecology and sociobiology. The modern body of theory provides quantitatively testable and experi mentaHy accessible hypotheses. Much current work in animal behaviour has concentrated on birds and mammals, animals with ostensibly more complex structure, physiology and behavioural capacity, but there is a growing body of information about the behaviour of fishes. There is now increasing awareness that the same ecological and evolutionary rules govern teleost fish, and that their behaviour is not just a simplified version of that seen in birds and mammals. The details of fish behaviour intimately reflect unique and efficient adaptations to their three-dimensional aquatic environment.
Author: Katherine V. Fite Publisher: Academic Press ISBN: 1483270130 Category : Nature Languages : en Pages : 391
Book Description
The Amphibian Visual System: A Multidisciplinary Approach is a compendium of articles across a broad range of disciplines within experimental biology focusing on the study of the amphibian visual system. The book presents a survey of the evolutionary history and major taxonomic and ecological adaptations of amphibians; anatomic, physiological, developmental, and behavioral data relating to the amphibian visual system; description of important standards for laboratory amphibians; and the crucial problem of species identification in neurobiological research. Zoologists, experimental biologists, neurologists, and anatomists will find the text very interesting.
Author: Shaun P. Collin Publisher: Springer Science & Business Media ISBN: 0387955275 Category : Nature Languages : en Pages : 471
Book Description
Research on aquatic sensory processing -- the way animals see, hear, smell, taste, feel, and electrically and magnetically sense their environment -- has advanced a great deal over the last fifteen years. This book discusses the most recent and important themes that have emerged from research in the areas of neurobiology and sensory physiology. The layout of the book is arranged by function or task, rather than by a description of each sensory modality in turn. Part I, "Navigation and Communication," chiefly examines long-range sensory tasks, while "Finding Food and Other Localized Sources" (Part II) scales down to concentrate on more close-range processing. Part III, "Coevolution of Signal and Sense," describes the strong linkages between the physical parameters of the aquatic realm and the sensory receptors. Organisms living in light-limited environments have received a lot of recent attention, so Part IV gives special focus to visual adaptations in the deep sea. The final Part V, "Central Coordination and Evolution of Sensory Inputs," describes aspects of how signals are processed and filtered in the central nervous system. This book will be essential reading for all undergraduate and graduate students interested in aquatic biological sciences as well as for any researcher in sensory systems.