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Some Helminths Of Itasca Park Fishes, Omer R. Larson

Journal of the Minnesota Academy of Science

A helminth survey was conducted'. on 12 species of fish taken from the waters of Itasca State Park. An abundant and varied helminth fauna was found, with 3 l parasitic forms identified to genus or species. By taxonomic groups these included, 20 trematodes, 5 cestodes, 2 acanthocephalans, and 4 nematodes. Every fish examined was parasitized, but yellow perch and rockbass possessed the greatest variety of helminths. Based on the results of this survey, several aspects of parasite life cycles, geographic distribution, and hast specificity are discussed.

Review Of Key To Parasites Of Freshwater Fish Of The U.S.S.R., Glenn L. Hoffman

United States Fish and Wildlife Service: Publications

This is a translation of the Russian book, Opredelitely Parazitov Presnovodnykh Ryb SSSR, by the above authors, Izdatel'stvo Akademii Nauk SSSR, Moscow-Leningrad, 1962. It is essentially a key to the identification of the species of parasites of the freshwater fishes of Russia including longer descriptions of the higher taxa.

Survey Of The Fishes Of Tomales Bay With Notes On The Life History Of The White Seaperch, Phanerodon Furcatus Girard, Tapan Banerjee

University of the Pacific Theses and Dissertations

Tomales Bay is situated in Marin County, about 40 miles north-west of San Francisco. This shallow bay averages about 1.5 miles in width and is about 12.6 miles in length, with an average depth of 12 feet (Johnson, Bryant and Hedgpeth, 1961). Oyster and herring comprise the main fishing industry, although the bay contributes a great amount of perch, smelt, halibut, and shark. Gill and seine nets are the most common gear used by fishermen.

The primary objectives of this study were: (1) to determine the species composition of the bay, and the relation between seining success at different localities …

Ultrasonic Tracking Of Migratory Fishes With An Internal Tag, Ross M. Horrall, H. F. Henderson, A. D. Hasler

School of Natural Resources: Faculty Publications

First paragraph:

A small ultrasonic tag, 9 mm by 40 mm in size, has been developed by members of the fish orientation group at the University of Wisconsin. The tag emits a continuous signal at approximately 65 kc/sec. The signal is received via a directional hydrophone and a high quality communications receiver. Tracking ranges of up to 1 km have been obtained. The placement of the tag is internal: either into the stomach or into the body cavity of the fish. The tags and tracking equipment have been successfully employed in studies on the open water movements and orientation of …

Kill And Migration Patterns Of The Seney Goose Flock, Glen A. Sherwood

United States Fish and Wildlife Service: Publications

An intensive investigation into the limiting factors and behavior of the Seney Canada goose (Branta canadensis maxima -- Hanson, 1965) flock was conducted from June, 1962 to August, 1965. A portion of the study findings, concerning kill and migration patterns, is reported here.

The 95,500 acre Seney National Wildlife Refuge is situated in the east-central sector of Michigan's upper peninsula, in the southwest quadrant of land formed by the junction of state highways M-77 and M-28. It is composed of four broad habitat types of which approximately 400 acres are cropland, 26,900 acres upland brush and timber, 61, 000 …

Two New Species Of Plistophora (Microsporidea) From North American Fish With A Synopsis Of Microsporidea Of Freshwater And Euryhaline Fishes, Robert E. Putz, Glenn L. Hoffman, Clarence E. Dunbar

United States Fish and Wildlife Service: Publications

Two new species of Microsporidea, Plistophora salmonae from steelhead and rainbow trout (Salmo gairdneri) and Plistophora cepedianae from gizzard shad (Dorosoma cepedianum) are described. Schizonts to spores of P. cepedianae were found at one time within the same cyst, while only sporonts and spores of P. salmonae were found within the cyst. An illustrated synopsis of the known Microsporidea of freshwater and euryhaline fishes is given.

Eimeria Aurati N. Sp. (Protozoa:Eimeriidae) From Goldfish (Carassius Auratus) In North America, Glenn L. Hoffman

United States Fish and Wildlife Service: Publications

In March, 1962 this laboratory received some goldfish for disease diagnosis from Mr. Richard Rice, Mercersburg, Pennsylvania. Seven of 29 fish examined were infected with Eimeria. These fish had long, whitish, opaque fecal casts hanging from the anus. The casts were composed almost entirely of oocysts. When shed, they sank to the bottom and looked somewhat like "spent" tapeworms (Figs. 1, 2). The infected fish were very lethargic and their intestines were swollen with contained fluid. Although I believe that the Eimeria is pathogenic, a heavy infection of other parasites made this difficult to determine. These fish had apparently …

Studies On Myxosoma Cartilaginis N. Sp. (Protozoa: Myxosporidea) Of Centrarchid Fish And A Synopsis Of The Myxosoma Of North American Freshwater Fishes, Glenn L. Hoffman, Robert E. Putz, Clarence E. Dunbar

United States Fish and Wildlife Service: Publications

Myxosoma cartilaginis n. sp. is described from the cartilage of Lepomis macrochirus (bluegill), L. cyanellus (green sunfish) and Micropterus salmoides (largemouth black bass).  The development of the parasite is described from naturally infected fish which were held in spore-free water after infection.  The sporoplasm invades cartilage, and becomes a multinucleate trophozoite which forms pansporoblasts, each of which produces 2 to 4 spores.  The first spores appear in 7 weeks.

The histopathology in the above fish consists at first of little cellular reaction, but after 4 to 5 months epithelioid granulomas appear arround some of the spore masses.  Cartilage liquefaction is …

Species Composition Within States For The 1962-63 And 1963-64 Hunting Seasons, Glen Smart

United States Fish and Wildlife Service: Publications

This paper considers the species composition of the duck kill in each State as determined by the Duck Wing Collection Surveys during 1962-63 and 1963-64 hunting seasons. Two-thirds of the annual kill was made up of mallards, black ducks, pintails, wood ducks, and green-winged teal. Mallards were the most common species taken in all Flyways except the Atlantic where the black duck was most abundant.

The American Eagles And Their Economic Status, E. R. Kalmbach, Ralph H. Imler, Lee W. Arnold

United States Fish and Wildlife Service: Publications

For centuries eagles have captured the fancy of man the world over. Because of its extensive range in the northern hemisphere, the golden eagle is the most widely known of this group of birds. Its use in falconry was the sport of kings. The frequency of its appearance in royal coats of arms indicated its importance. It is the national emblem of Germany and Mexico.

In North America the bald eagle as well as the golden eagle represents this group of powerful birds of prey. The bald eagle is strictly an American species, and the founders of the United States …

Fisheries Report No I (1) - The Shark Bay Fishery On Snapper Chrysophrys Unicolor (Quoy And Gaimard), B. K. Bowen

Fisheries Research Reports

As regards both catch and value, the Shark Bay snapper fishery is the second most important scale fishery in Western Australia. Until 195%, the fishing was done solely by means of hard-lines operated from beats drifting over the snapper patches. In 1959 traps were first used with great success and in 196) this method of fishing was again the principal technique.

Prior to the 1960 season there were several suggestions that the use of traps would have a deleterious effect on the fishery. On October 19, 1959, the Western Australian League of the Professional Fishermen's Association wrote to the Fisheries …

Predator And Rodent Control In The United States, A. S. Leopold, S. A. Cain, C. M. Cottam, I. N. Gabrielson, T. L. Kimball

United States Fish and Wildlife Service: Publications

In a frontier community, animal life is cheap and held in low esteem. Thus it was that a frontiersman would shoot a bison for its tongue or an eagle for amusement. In America we inherited a particularly prejudiced and unsympathetic view of animals that may at times be dangerous or troublesome. From the days of the mountain men through the period of conquest and settlement of the West, incessant war was waged against the wolf, grizzly, cougar, and the lowly coyote, and even today in the remaining backwoods the maxim persists that the only good varmint is a dead one. …

Geographic Distribution Of Some Species Of Trichodinids (Ciliata: Peritricha) Parasitic On Fishes, Glenn L. Hoffman, Jiří Lom

United States Fish and Wildlife Service: Publications

North American Trichodina from Carassius auratus, Lepomis cyanellus, L. macrochirus, Micropterus salmoides, and Rhinichthys atratulus have been studied by the silver-impregnation method and compared with European species. T. reticulata Hirschmann and Partsch, 1955, and T. (Foliella) subtilis Lorn, 1959, originally described from European goldfish, are herein recorded from North America also. T. fultoni Davis, 1947, from Lepomis cyanellus, Micropterus salmoides, and Rhinichthys atratulus is redescribed, and T. domerguei f. magna Lorn, 1961, described from European tench and gudgeon, is considered a synonym. A Trichodina sp. from the gills of Lepomis macrochirus is described; it is almost identical with …

The Fish Fauna Of The Mississippi River Above St. Anthony Falls As Related To The Effectiveness Of This Falls As A Migration Barrier, Samuel Eddy, John B. Moyle, James C. Underhill

Journal of the Minnesota Academy of Science

No abstract provided.

Fisheries Report Ii (2) - Preliminary Report On The Effectiveness Of Escape-Gaps In Crayfish-Pots, B. K. Bowen

Fisheries Research Reports

The Western Australian commercial crayfish, Panulinrus cy,nus George, (1962)", is caught in depths ranging from a few feet to approximately 45 fathoms. In the shallow waters large numbers of crayfish measuring, less than the legal minimum length are brought to the surface in the standard commercial crayfish pots. The law requires that these undersize crayfish be returned to the sea, but there is always the temptation to retain them for illegal sale. In addition, the undersize crayfish which are returned to the sea are often damaged by handling. The probability is that their mortality rate is higher than those which …

Two New Gyrodactylus (Trematoda: Monogenea) From Cyprinid Fishes With Synopsis Of Those Found On North American Fishes, Glenn L. Hoffman, Robert E. Putz

United States Fish and Wildlife Service: Publications

Gyrodactylus atratuli from the blacknose dace (Rhinichthys atratulus) and the pearl dace (Semotilus margarita) is compared with known species of Gyrodactylus from North American fishes and described as a new species. Gyrodactylus margaritae from the pearl dace (Semotilus margarita) is compared with known species of Gyrodactylus from North American fishes and described as a new species. The average number of G. atratuli per blacknose dace in the natural habitat is 7.8 (1 to 32) and in the laboratory at the same water temperature after 55 days in captivity, 5.4 (0 to 11). G. atratuli …

Studies On Neogogatea Kentuckiensis (Cable, 1935) N. Comb. (Trematoda: Strigeoidea: Cyathocotylidae), Glenn L. Hoffman, Clarence E. Dunbar

United States Fish and Wildlife Service: Publications

The cercaria of N. kentuckiensis was found in Anaplocamus dilatatus (Nitrocris d.) and Mudalia carinata. The metacercaria was found in all fishes examined from Opequon River, West Virginia, except Cottus bairdi which was also refractory to experimental infection. Two species of Centrarchidae, four of Cyprinidae, three of Salmonidae, Etheostoma flabellare, Platypoecilus maculatus, and Trichogaster trichopterus were experimentally infected. The development of the metacercari and cyst and effect on the fish are described. The histopathology initially consists of hemorrhage and muscle necrosis about the metacercaria, followed by reorganization and formation of a loose connective tissue cyst. The controversial adult names …

Factors Affecting The Waterfowl Hunter Utilization And The Waterfowl Kill At The Bear River Migratory Bird Refuge, 1960-61, Stephen V. Goddard

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In 1960 there were 1,955, 000 waterfowl hunters in the United States. These hunters spent $89,431, 000 (an average of $45.74 per individual) and 15,158, 000 hunter days in the field. The hunting population will increase 35 percent by 1975 (Anonymous, 1960).

The large increase in hunters will bring a proportional increase in the demand for places to hunt. Many states face the problem of providing enough public hunting for such an army of sportsmen. Studies by Kozlik (1958) in California, Gordinier (1957) and Friley (1959) in Michigan, and Bednarik (1957, 1961) in Ohio point out some of the problems …

Studies On Parorchis Acanthus (Trematoda: Digenea) As A Biological Control For The Southern Oyster Drill, Thais Haemastoma, Nelson R. Cooley

United States Fish and Wildlife Service: Publications

Events in the attack on the southern oyster drill, Thais haemastoma, by miracidia of the digenetic trematode, Parorchis acanthus, are described.

Infection rates in wild drill populations of various Gulf Coast localities from Florida to Texas were low, but intensity of infection in individual drills was high and caused castration. Infection rates in laboratory experiments were high, but intensities were low.

Pathology of natural infections in drills is described. The infection lasts at least two years, possibly even for life.

Natural infection rates of juvenile herring gulls (Larus argentatus) , ring-billed gulls (L. delawarensis), and …

Shellfish Resources Of Washington, Robert Grant Levens

Graduate Student Research Papers

This paper will explore the salt water shellfish resources of Washington State. Particular emphasis will be placed upon the Pacific and Olympia Oysters, the Dungeness Crab, the research being done at Quilcene, and the lesser varieties of shellfish, including shrimp and the hardshell species of clams. The latter includes the littleneck, butter, Manila, and geoduc clams. A major emphasis will be the commercial importance of the shellfish, but the sportsman and the expanding role of Washington as a summer recreation area will not be overlooked.

Observations Of Pituitary Hormone Injections And Ripening Of Fish, D. K. Kaushik

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A dependable source of quality fish spawn is a fundamental prerequisite for fish culture development. This is especially important inasmuch as most of the cultivable species do not breed in confined waters. Also, sport fisheries are gaining greater popularity, and subsequently the fish supply is being taxed. Still another need for fish spawn is in the ever increasing demand for bait minnows. Also, the construction of more and more dams has resulted in insurmountable obstacles for ascending and descending fish, which may ultimately result in complete destruction of some fisheries. Thus some measure of artificial propagation will have to be …

Some Aspects Of Sport-Fishing Yields From Minnesota Lakes, Warren J. Scidmore

Journal of the Minnesota Academy of Science

The value of angling as a recreational feature is generally recognized by everyone in Minnesota. About one adult Minnesotan in three fishes, to say nothing of those younger. than 16 who need no fishing license. The impact of this sport fishing on the economy of the state is considerable. The 1.3 million resident and non-resident anglers spend some 100 million dollars annually to catch fish (Scheftel, 1958) and the annual sportfishing catch of fish from some 2 million acres of Minnesota fishing waters has been conservatively estimated at about 25 million pounds (50 million fish) (Moyle, 1958).

New Distributional Records Of Some Minnesota Fishes, Frank Nordlie, James C. Underhill, Samuel Eddy

Journal of the Minnesota Academy of Science

Minnesota is almost unique in that its waters drain by three divergent courses: the Red River to the Arctic, the Great Lakes to the Gulf of St. Lawrence and the Mississippi River to the Gulf of Mexico. The close proximity of the headwaters of these several drainages present opportunities for certain species to move from one basin to another. Species restricted to the Arctic basin have their southern limits in northern and western Minnesota. Many eastern and southern species have their northern and western limits within the state. In spite of the fact that intensive collecting has been carried on …

Intra-Specific Variation In The Common Shiner, Notropis Cornutus Frontalis (Agassiz) From Minnesota And South Dakota, James C. Underhill

Journal of the Minnesota Academy of Science

The voluminous literature relating to intra-specific variations in fishes has been reviewed by Hubbs (1934, 1940), Tanning (1952), Lindsay (1953) and others. A majority of the workers have supported the interpretation that the variation is influenced by various environmental factors, primarily the temperature during the pre-fry stages of development. Certain of the meristic characters which show such variability have been generally used in identifying various races of minnows. If such characters as the number of anal fin rays or scales in the lateral line are easily influenced by the environment, their usefulness in defining races is certainly open to question. …

Progress ’61: 1961 Annual Report

Nebraska Game and Parks Commission: Publications

Table of Contents

Commissioners ... 2

Director's Message ... 3

Game ... 4

Fisheries ... 10

Parks ... 14

Federal Aid ... 18

Information and Tourism ... 20

Engineering and Operations ... 24

Land Management ... 26

Law Enforcement ... 28

Boating ... 30

Financial ... 31

Mortality Of Eastern Brook Trout Caused By Plerocercoids (Cestoda: Pseudophyllidea: Diphyllobothriidae) In The Heart And Viscera, Glenn L. Hoffman, C. E. Dunbar

United States Fish and Wildlife Service: Publications

It is well known that migrating helminth larvae do a great amount of damage to the host. Often, however, the host is relatively large and the damage done by few larvae is not serious. When the host is very small the mechanical damage, at least, must be proportionately greater for each larva present. An unusual case of mortality of small brook trout (Salvelinus fontinalis) roughly 2 to 4 inches long was brought to our attention. Examination of the mortalities, as well as survivors, revealed relatively large diphyllobothrid larvae (fig. 1) in the chambers of the heart, liver, pericardial …

Notes On Sanguinicola Davisi (Trematoda: Sanguinicolidae) In The Gills Of Trout, H. S. Davis, Glenn L. Hoffman, E. W. Surber

United States Fish and Wildlife Service: Publications

In 1953 the late Dr. Davis recorded the presence of an unnamed trematode from the gill blood vessels of fingerling cutthroat trout (Salmo clarki) and fingerling steelhead trout (Salmo gairdneri) at the Alsea Hatchery and in yearling rainbow trout (Salmo gairdneri) at the Oakridge Hatchery, both of the Oregon State Game Commission. Subsequently, two blood flukes, Sanguinicola davisi and S. klamathensis, were described from trout by Wales (1958). The present species was determined to be S. davisi by one of us (GLH). This report supplements data reported by Davis (1953) and Wales (1958). …

Studies On Controlling Oyster Drills In Tomales Bay, Clarence Irwin Haydock

University of the Pacific Theses and Dissertations

The primary purpose of this study was to evaluate the feasibility of controlling oyster drills in Tomales Bay, particularly Urosalpinx cinerea and Ocenebra Japonica (astropods, Muricidae), with chemicals which have been succesfully tested on a number of oyster pests, Including urosalpinx, in Long Island Sound (Loosanoff , 1956- 1961). The problem was polo to provide information. en the present status of drills alle is the bay, a basic preliminary in evaluating others of pest control.

Digenetic Trematodes Of Marine Fishes Of Puerto Rico, Ather H. Siddiqi, Raymond M. Cable

Harold W. Manter Laboratory of Parasitology: Library Materials

Preface

This monograph reports the major part of an investigation begun by Raymond M. Cable in 1951, when he spent one year at the College of Agriculture and Mechanic Arts, University of Puerto Rico, Mayagiiez, Puerto Rico, collecting and studying larval trematodes and the helminth parasites of shore birds and marine fishes. The work there was done under the auspices set forth in the Preface to Part 4, Volume 16, of this series; this part was facilitated especially by Virgilio Biaggi, N. T. Mattox, and Donald Erdman, who rendered invaluable assistance in the collection and identification of fishes. One trip …

A Study Of The Parasites From Rainbow Trout Of A Commercial Fish Farm In Cache Valley, Utah, Kenneth L. Jones

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

During the biennial period July 1, 1956 to June 30, 1958 the 12 state fish hatcheries in Utah produced and stocked in the waters of the state 20,092,902 fish weighing a total of 1,528,787 pounds, at a cost varying between 69 and 75 cents per pound. The cost figure depends upon what expenditures are included (Don Andriano, 1960). A substantial mortality occurs at the fish hatcheries in the state of Utah. The determination of the cause of any given loss is complicated by a number of factors. This is especially true of losses which may be due secondarily to parasites …