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Virus-Associated Tumours Of The Harderian Gland In Laboratory-Reared Voles, Clethrionomys Rutilis (Pallas), Robert L. Rausch, J. W. Lindsay

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Tumors of the Harderian gland occurred frequently in red-backed voles, Clethrionomys rutilus (Pallas), in a captive colony maintained since 1957. Although the tumors became obvious only in animals about a year old and older, early stage changes were histologically evident in glands from younger, clinically normal voles. The tumors ranged in type from poorly differentiated adenoma to adenocarcinoma, with invasion of adjacent tissues and characteristic deformation of the zygomata. Electron micrographs disclosed viral particles in the cytoplasm of glands from clinically normal animals as well as in glands showing malignant changes. The tumor was not observed in arvicoline rodents of …

More Information On The Coccidian Parasites (Protozoa: Eimeriidae) Of The Colorado Pika, Ochotona Princeps, With A Key To The Species, Donald W. Duszynski

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The prevalence of 7 species of Coccidia is reported from 137 Colorado pikas, Ochotona princeps, collected on Mt. Evans, Clear Creek County, Colorado, during the summers of 1968, 1969, and 1971. Identification of the parasites was based on the structure of the unsporulated oocysts which, at least for those species that have been described to date from North American pika hosts, are highly distinctive for most species. Photographs illustrate the differences in size, shape, and form of the oocysts of the various species. A key to the Coccidia of pikas, based on the descriptions of sporulated oocysts, is presented.

Pest Management In Relation To Human Health, Allan M. Barnes

Vertebrate Pest Conference Proceedings: 6th (1974)

Vector-borne disease prevention and control strategies, aside from those associated with domestic rodents, have rarely involved management of vertebrate populations, even though in many cases such management would appear to represent the most effective and economical long-term approach. Prevention of a long list of arthropod transmitted diseases is often at best a stop-gap procedure undertaken only after substantial disease hazard is detected in reservoir populations. More often, control actions await the detection of human cases, at which time short-term emergency control measures may be conducted, usually involving the use of toxicants against arthropod vectors and occasionally vertebrate reservoirs. In some …

Physiological And Morphological Correlation Of Rhizopus Stolonifer Spore Germination, James L. Van Etten, Lee Bulla Jr., Grant St. Julian

Department of Plant Pathology: Faculty Publications

Sporangiospores of Rhizopus stolonifer were examined at various stages of germination by scanning electron and phase-contrast microscopy. These observations were correlated with changes in spore dry weight, spore volume, respiration, and syntheses of ribonucleic acid, deoxyribonucleic acid, and protein during germination.

Some Digenetic Trematodes From Synaphobranchid Eels, Robin M. Overstreet, Douglas M. Martin

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Four trematodes, all new host records, were found in synaphobranchid eels from the continental slopes in the Gulf of Mexico and the Straits of Florida. Hypertrema ambovatum Manter, 1960 (Fellodistomidae), previously known only from near New Zealand, is reported from Synaphobranchus oregoni, including data in addition to the original description; Pseudopecoelus vulgaris (Manter, 1934) (Opecoelidae) and Hirudinella sp. (Hirudinellidae) are reported from S. affinis and S. oregoni, respectively, and commented upon briefly; and Helicometra robinsorum sp. n. (Opecoelidae) is described from S. oregoni and Ilyophis brunneus. The latter trematode most closely resembles H. antarcticae Holloway and Bier, …

Bibliography Of Research Publications Of The U.S. Bureau Of Sport Fisheries And Wildlife, 1928-72, Paul H. Eschmeyer, Van T. Harris

United States Fish and Wildlife Service: Publications

This bibliography comprises publications in fishery and wildlife research authored or coauthored by research scientists of the Bureau of Sport Fisheries and Wildlife and certain predecessor agencies. Separate lists, arranged alphabetically by author, are given for each of 17 fishery research and 6 wildlife research laboratories, stations, investigations, or centers. Publications coauthored by Bureau scientists from different research units are credited to the facility at which the senior author was stationed at the time of publication.

Although the Federal Government has supported research on fish and wildlife since the late 1800's, the relatively few works published in the early years …

A Rubber Band Around An Atlantic Croaker, Robin M. Overstreet, Charles H. Lyles

Harold W. Manter Laboratory of Parasitology: Faculty Publications

A rubber band permanently girdled an Atlantic croaker, Micropogon undulatus, resulting in considerable malformation and pathological alterations of the fish. On 12 July 1973 at Graveline Bayou, Jackson County, Mississippi, Mrs. Buster Blades caught on hook and line a 175 mm standard length (102.1 g) croaker that she immediately separated from the rest of her catch as a suspected parasitized fish. Later upon closer examination, she realized that a rubber band encircled the fish, and so she brought the fish to us. The band had deformed the prepelvic isthmus, restricted movement of the pectoral fins, and permanently encircled the …

Review Of Parasites Of Freshwater Fishes

United States Fish and Wildlife Service: Publications

This is a well organized, clearly written review of fish parasite control and treatment methods. The authors, who are renowned specialists in the field, have drawn together more than 390 up-to-date references and over 440 treatments. The treatments are discussed for each major parasite group in a handy chart form that greatly facilitates the book's usefulness. Interspersed between the charts are full-page or half-page color plates illustrating the parasites and the appearance of their infections in fish. There are 108 illustrations (all but 2 in color) on 57 pages, constituting more than 25% of the book's length and resulting in …

Heligmosomoides Johnsoni Sp. Nov. (Nematoda: Heligmosomatidae) From The Heather Vole, Phenacomys Intermedius Merriam, Virginia R. Rausch, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Heligmosomoides johnsoni sp. noy. is described from the cecum of the heather vole, Phenacomys intermedius Merriam, from the Olympic Mountains, Washington. The absence of longitudinal cuticular ridges dorsally separates H. johnsoni from species of Heligmosomoides other than H. hudsoni (Cameron, 1937), which occurs in varying lemmings, Dicrostonyx spp., and from which H. johnsoni is distinguished by its longer spicules, form of the dorsal ray, and other characters. Both Phenacomys and Dicrostonyx have a specialized cecum, with long villi around which the nematodes are found tightly coiled. The zoogeography of heligmosomid nematodes in Phenacomys is briefly discussed.

French abstract: On décrit …

Nsca - Asc - National Plan For Biological Collections, Asc Committee

Harold W. Manter Laboratory of Parasitology: Faculty Publications

American systematics collections: A national plan. Developed by a stellar group of biologists including David Wake and Peter Raven, this plan called for action by the systematics community. The estimate of needs in 1973 called for about 63 million USD for the next five years just to keep the US National Collections from disintegrating and to get them in shape to mount the huge effort needed to fully inventory the biota of the earth (a plan that was not even dreamed of until about the year 1995).

A report to the nation's systematics collections community, and includes a National Plan …

Diphyllobothrium Ursi From Man In British Columbia--First Report Of This Tapeworm In Canada, Leo Margolis, Robert L. Rausch, E. Robertson

Harold W. Manter Laboratory of Parasitology: Faculty Publications

A case of human infection in British Columbia by the tapeworm Diphyllobothrium ursi is reported and the likely source of infection is discussed. This is the first report of D. ursi in Canada and the third from humans.

The Other Side Of Biology, John J. Janovy Jr.

John J. Janovy, Jr. Publications

Discusses biology as increasingly multidisciplinary.

The Effects Of Soil Salinity And Meloidoflyne Javanica On Tomato, Armand R. Maggenti, Adnan Hardan

Harold W. Manter Laboratory of Parasitology: Faculty Publications

A non-sodic, non-saline sandy loam soil was salinized to anion-cation ratios similar to those naturally occurring in Iraq and California. The interactions of saline soils (conductivities 4, 8, 12 and 16 mmhos/cm) with a moderately salt-tolerant plant (Lycopersicon esculentum 'Marimond') and a plant parasitic nematode (Meloidogyne favanica) were investigated. Plant parasitic nematodes were shown to be an important modifying influence within the plant environment, either accentuating or ameliorating salinity stress effects.

Characteristics Of Deoxyribonucleic Acid Polymerase Isolated From Spores Of Rhizopus Stolonifer , Cheng-Shung Gong, Larry Dunkle, James L. Van Etten

Department of Plant Pathology: Faculty Publications

Deoxyribonucleic acid (DNA)-dependent DNA polymerase was purified several hundredfold from germinated and ungerminated spores of the fungus Rhizopus stolonifer. The partially purified enzymes from both spore stages exhibited identical characteristics; incorporation of [³H] deoxythymidine monophosphate into DNA required Mg²⁺, DNA, a reducing agent, and the simultaneous presence of deoxyguanosine triphosphate, deoxycytidine triphosphate, and deoxyadenosine triphosphate. Heat-denatured and activated DNAs were better templates than were native DNAs. The buoyant density of the radioactive product of the reaction was similar to that of the template DNA. The enzyme is probably composed of a single polypeptide chain with …

Location Of Grapevine Fanleaf And Yellow Mosaic Virus Particles In Xiphinema Index, D. J. Raski, Armand R. Maggenti, N. O. Jones

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Particles of fanleaf and yellow mosaic viruses are reported in the lumen of the esophagus of Xiphinerna index. Differences in cuticular morphology suggest differences in charged receptor sites which may offer an explanation for virus location and orderly arrangement.

Cathetocephalus Thatcheri Gen. Et Sp. N. (Tetraphyllidea: Cathetocephalidae) Fam. N. From The Bull Shark, Murray D. Dailey, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Cathetocephalus thatcheri gen. et sp. n. is described from the spiral valve of the bull shark, Carcharhinus leucas (Valenciennes), taken in the Gulf of Mexico and the Atlantic coast of Florida. A new family is erected for the new genus. The species most closely resembles Pillersium owenium Southwell, 1927, in that both possess a scolex which is perpendicular to the long axis of the strobila. It differs, however, in having a single neck and holdfast organ rather than a bifurcate neck with two bothridia. Also, the surfaces of the scolex differ from those of P. owenium by possessing fleshy papilliform …

Some Species Of Lecithaster Lühe, 1901 (Digenea: Hemiuridae) And Related Genera From Fishes In The Northern Gulf Of Mexico, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Lecithaster helodes n. sp. is described from Mugil curema and M. cephalus. It differs from the closely related L. mugilis Yamaguti, 1970 by having four rather than three ovarian lobes and other minor differences. Discussions and measurements are presented for L. confusus Odhner, 1905, L. leiostomi Overstreet, 1970, Hysterolecitha elongata Manter, 1931, Aponurus pyriformis (Linton, 1910) n. comb., and A. elongatus Siddiqi & Cable, 1960. Branchadena Linton, 1910 is considered a synonym of Aponurus Looss, 1907. New host records are listed for some of the above hemiurid trematodes. Leurodera ocyri Travassos, Frietas & Bihrnheim, 1965 and L. inaequalis Travassos, …

Seasonal Carbon Dioxide And Oxygen Concentrations In The Dens Of Hibernating Mammals (Sciuridae), D. D. Williams, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

This paper reports seasonal changes in respiratory gases in artificial dens of two species of hibernators indigenous to central and northern Alaska: Citellus parryi ablusus(Osgood) and Marmota broweri Hall and Gilmore (Sciuridae).

Structure Of The Oocysts And Excystation Processes Of Four Eimeria Spp. (Protozoa: Eimeriidae) From The Colorado Pika, Ochotona Princeps, Donald W. Duszynski, John T. Brunson

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Oocysts of Eimeria banffensis Lepp, Todd, and Samuel, 1972, Eimeria cryptobarretti sp. n., Eimeria princepsis sp. n., and Eimeria calentinei sp. n. are described from the Colorado pika, Ochotona princeps, collected from 3 mountain sites in Colorado. Subspherical oocysts of E. banffensis measure 23 to 34 by 18 to 25 μ (mean 27.6 by 23.0 μ) with ovoid sporocysts 10 to 16 by 7 to 10 μ (mean 12.5 by 8.5 μ). A micropyle, oocyst residuum, and polar granule are absent, but a sporocyst residuum, Stieda body, and substiedal body are present. The ellipsoidal oocysts of E. cryptobarretti measure …

Ec73-1833 Lawn Diseases In The Midwest, J. L. Weihing, M. C. Shurtleff, R. E. Partyka

University of Nebraska-Lincoln Extension: Historical Materials

Extension circular 73-1833 is about lawn diseases in the Midwest.

Ec73-1907 Internal Parasites Of Cattle, D. L. Ferguson

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 73-1907 is about internal parasites in cows and how they affect cattle production.

Internal parasites continue to be one of the major problems confronting cattle producers. In 1965, the United States Department of Agriculture estimated that internal parasites in cattle caused an average annual loss of $161,678,000. The internal parasites responsible for the annual loss are listed below.

Anaplasmosis. .$ 36,001,000

Coccidiosis . . . .14,569,000

Worm Parasites .100,046,000

Liver Flukes . . . 3,022,000

Trichomoniasis .. 8,040,000

In cattle the effects of internal parasites will be well camouflaged. However, additional feed will be required to reach market …

Lice Of Public Health Importance And Their Control, Harry D. Pratt, Kent S. Littig

Harold W. Manter Laboratory of Parasitology: Library Materials

Lice have been intimately associated with man for centuries. Infestations with lice occur today in the United States and many other countries despite great efforts to maintain high standards of public health. Public health agencies are often called upon if infestations include or expose large groups of people, particularly those in public institutions such as schools, jails, hospitals, or homes for the aged.

The three sucking lice that infest humans are: the body louse (Pedlculus humanus humanus), the head louse (Pediculus humanus capitis), and the crab louse (Pthirus pubis). The body louse is the …

Anthelmintics For Nematode Parasites Of Fish: I. Control Of Sterliadochona Pedispicula In Salmo Gairdnerii By Diethyl 2-Chlorovinyl Phosphate And 2,2 Dichlorovinyl Dimethyl Phosphate Pellets, A. R. Maggenti

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Tests indicate that the oral administration of diethyl 2-chlorovinyl phosphate (SD1836) and 2,2 dichlorovinyl dimethyl phosphate (DDVP) plastic-incorporated pellets significantly reduces the intestinal nematode parasite Sterliadochona pedispicula in wild rainbow trout. No evidence of fish toxicity was noted with the treatments and dosages tested.

Anthelmintics For Nematode Parasites Of Fish: Ii. Aqueous Anthelmintic Bath Treatments Using Diethyl 2-Chlorovinyl Phosphate And 2,2 Dichlorovinyl Dimethyl Phosphate For Control Of Sterliadochona Pedispicula In Salmo Gairdnerii, A. R. Maggenti

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The toxicity of diethyl 2-chlorovinyl phosphate (SD1836) and 2,2 dichlorovinyl dimethyl phosphate (DDVP) was tested as an "in-water" treatment of rainbow trout and in vitro against the internal nematode parasite of fish, Sterliadochona peclispicula. As an "in-water" anthelmintic treatment SD1836 was 100% effective at concentrations of 25 fL liters/liter for 24 hr and 5 μ liters/liter for 72 hr; no toxic effects to rainbow trout were noted with these treatments.

Acanthobothrium Urolophi Sp. N., A Tetraphyllidean Cestode (Oncobothriidae) From An Australian Stingaree, Gerald D. Schmidt

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Acanthobothrium urolophi sp. n. is described from a common stingaree, Urolophus testaceus, from South Australia. It differs from all other species in being apolytic and acraspedote, in having hooks 105-115 μ- long, one accessory sucker 80-90 wide on each bothridinm, and 40-72 testes in two longitudinal rows.

Parasites Of Some Penaeid Shrimps With Emphasis On Reared Hosts, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Information is presented about parasites and commensals of penaeid shrimps, allowing those who rear shrimps and those who are interested in associated organisms of shrimp to have a better knowledge of the organisms that are or may be associated with brown, white, and pink shrimps. It covers common and rare organisms and diseases, primarily in the northern Gulf of Mexico, listing several previously unreported species including an undescribed gregarine, a larval nematode (Spirocarnallanus pereirai), a commensal nematode (Leptolaimus sp.), a leech (Myzobdella lugubris), a blue-green alga (Schizothrix calcicola), a hydroid (Obelia bicuspidata …