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Author: U. . S. Department of the Interior Publisher: Forgotten Books ISBN: 9780656464159 Category : Science Languages : en Pages : 28
Book Description
Excerpt from Common Parasites of Fishes Fish taken commercially, for sport, or raised by fish fanciers are sometimes found to be abnormal due to injury, deformity, disease, or the presence of parasites. This paper is concerned with common parasites of fishes and their recognition. Life cycles and biology are mentioned briefly, and references to more detailed literature are included. Parasites may be defined as animals that live on or in another animal, the host, at the expense of that animal. There are many kinds of parasites which may be found on the surfaces of fish, including the gills, as well as in the flesh and internal organs (fig. Those on the surface are known as external parasites, and those that live inside are called internal parasites. Several types may occur together in a single fish. Some parasites are fairly large (up to several inches) and can be seen easily, but many are microscopic. Scientists who work on parasites describe the organisms, study the life cycles (some have several intermediate hosts), survey the kinds and numbers found in fish, study damage done to fish, and attempt to control them. Re search is carried on by the U. S. Fish and Wildlife Service and some colleges and universities. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: U. . S. Department of the Interior Publisher: Forgotten Books ISBN: 9780656464159 Category : Science Languages : en Pages : 28
Book Description
Excerpt from Common Parasites of Fishes Fish taken commercially, for sport, or raised by fish fanciers are sometimes found to be abnormal due to injury, deformity, disease, or the presence of parasites. This paper is concerned with common parasites of fishes and their recognition. Life cycles and biology are mentioned briefly, and references to more detailed literature are included. Parasites may be defined as animals that live on or in another animal, the host, at the expense of that animal. There are many kinds of parasites which may be found on the surfaces of fish, including the gills, as well as in the flesh and internal organs (fig. Those on the surface are known as external parasites, and those that live inside are called internal parasites. Several types may occur together in a single fish. Some parasites are fairly large (up to several inches) and can be seen easily, but many are microscopic. Scientists who work on parasites describe the organisms, study the life cycles (some have several intermediate hosts), survey the kinds and numbers found in fish, study damage done to fish, and attempt to control them. Re search is carried on by the U. S. Fish and Wildlife Service and some colleges and universities. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Edwin Linton Publisher: Forgotten Books ISBN: 9781334736995 Category : Science Languages : en Pages : 164
Book Description
Excerpt from Parasites of Fishes of the Woods Hole Region Certain economical questions relating to parasitism have been discussed by the author in an article in the Fish Commission Bulletin for 1893 entitled Some observations concerning fish parasites, and in the 'fish Commission Bulletin for 1897 in an article entitled An economical consideration of fish parasites. This paper contains: (1) An annotated list of the parasites of Woods Hole fishes which have been described by the author in various papers published in the Reports and Bulletins of the United States Fish Commission and the Proceedings of the United States National Museum. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Edwin Linton Publisher: Forgotten Books ISBN: 9781391783567 Category : Science Languages : en Pages : 68
Book Description
Excerpt from Fish Parasites Collected at Woods Hole in 1898 References to my former papers have been inserted in Part I in all cases where forms were identified as belonging to species therein mentioned or described. As a rule, references are made only to record of latest date, and are not repeated under the same host, but are given under the first date on which the species concerning which reference is made was found. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: E. A. McGregor Publisher: ISBN: 9781332918126 Category : Science Languages : en Pages : 92
Book Description
Excerpt from Publications on Fish Parasites and Diseases, 330 B. C.-A. D. 1923 Leipzig, 35, 434-438. (protozoa Sporozoa) Bosc d'antic, L. A. G. 1802. Historie naturelle des Crustaces, ' contenant leur Description et leure Moeurs. Historia Vermium, Paris, An. 10, two volumes. (excellent summary) (crustacea) About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Thomas Spencer Cobbold Publisher: Forgotten Books ISBN: 9780483131842 Category : Science Languages : en Pages : 24
Book Description
Excerpt from On the Destruction of Fish and Other Aquatic Animals by Internal Parasites This communication is not intended to be an exhaustive memoir. The subject is a wide one, yet it may with truth be said that few persons are aware of its importance. As regards man and the higher animals, physicians and other professional persons have a direct interest in con ducting researches amongst the parasites; nevertheless, it is surprising to what an extent mere prejudice has operated to prevent labourers from entering into this instructive field of comparative pathology. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Richard Roksabro Kudo Publisher: Forgotten Books ISBN: 9781528224031 Category : Languages : en Pages : 56
Book Description
Excerpt from Studies on Some Protozoan Parasites of Fishes of Illinois: With Eight Plates This paper is divided into two parts. The first part deals with a pre liminary Observation made by the author from August 12 to September 1930, under the auspices of the Illinois State Natural History Survey, on some parasitic Protozoa of fishes inhabiting the main water systems of the state. The second part gives the descriptions of several new spe'cies and additional information on a few already known species of Myxosporidia Observed during this survey and also in the fishes which have been collected by Dr. D. H. Thompson, Zoologist of the Survey, from various parts of the state in connection with his work over a per iod Of several years. The author is indebted to Dr. Thompson for these materials placed at his disposal and for assistance during the month of field study. Thanks are also due to Mr. F. D. Hunt Of the Survey, who was instrumental in the collection of material on the Fox River. The specimens are deposited in the collections Of the Illinois State Natural History Survey at Urbana. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Glenn L. Hoffman Publisher: Cornell University Press ISBN: 9780801434099 Category : Medical Languages : en Pages : 572
Book Description
This thoroughly revised and updated edition of a classic reference work is the definitive guide to the identification of the parasites of freshwater fishes of North America. The book provides information on public health concerns about fish parasites, the methods used to examine fish for parasites, and those parasites found only in very selective organs or tissues. It lists the known species of each genus, along with reference citations that enable readers to find literature pertinent to species identification, life cycles, and in some cases, control.
Author: U. . S. Department of the Interior
Author: U. . S. Department of the Interior
Author: Edwin Linton
Author: Edwin Linton
Author: Glenn L. Hoffman
Author: E. A. McGregor
Author: Glenn L. Hoffman
Author: Thomas Spencer Cobbold
Author: U. .S. DEPARTMENT OF THE. INTERIOR
Author: Richard Roksabro Kudo
Author: Glenn L. Hoffman