Digital Commons Network^™

Changes In The Status, Distribution, And Management Of Double-Crested Cormorants In Wisconsin, Summer W. Matteson, Paul W. Rasmussen, Kenneth L. Stromborg, Thomas I. Meier, Julie Van Stappen, Eric C. Nelson

Symposium on Double-Crested Cormorants: Population Status and Management Issues in the Midwest

We reviewed and summarized historical data and conducted population surveys from 1973 through 1997 to determine the breeding status and distribution of doublecrested cormorants (Phalacrocorax auritus) in Wisconsin. Breeding cormorants historically occupied large, isolated lakes and wetlands in northern Wisconsin, but there were no known nesting sites until 1919, when cormorants were reported nesting on Lake Wisconsin in south-central Wisconsin. From the 1920’s to the 1950’s, cormorants occupied 17 colony sites in 16 counties, though no more than 7 sites were occupied during any particular year. From the 1950’s to the early 1970’s, the number of cormorant nests …

Impact Of Double-Crested Cormorant Predation On The Yellow Perch Population In The Les Cheneaux Islands Of Michigan, Glenn Y. Belyea, Susan L. Maruca, James S. Diana, Philip J. Schneeberger, Steve J. Scott, Richard D. Clark Jr., James P. Ludwig, Cheryl L. Summer

Symposium on Double-Crested Cormorants: Population Status and Management Issues in the Midwest

The Michigan Department of Natural Resources, in conjunction with the University of Michigan and the U.S. Fish and Wildlife Service, initiated a research study to determine the impact of double-crested cormorants (Phalacrocorax auritus) on the yellow perch (Perca flavescens) population in the Les Cheneaux Islands area of northern Lake Huron. Aerial and nesting colony counts were conducted to monitor cormorant abundance. Creel census counts and tagging of 8,400 perch were used to study perch abundance. We collected 373 cormorants to study food habits via stomach-content analysis. We found that (1) cormorants fed heavily on yellow perch …

Fish Losses To Double-Crested Cormorant Predation In Eastern Lake Ontario, 1992–97, Robert M. Ross, James H. Johnson

Symposium on Double-Crested Cormorants: Population Status and Management Issues in the Midwest

We examined 4,848 regurgitated digestive pellets of double-crested cormorants (Phalacrocorax auritus) over a 6-year period (1992–97) to estimate annual predation on sport and other fishes in the eastern basin of Lake Ontario. We found more than 51,000 fish of 28 species. Using a model that incorporates annual colony nest counts; fledgling production rates; adult, immature, and young-of-year residence times (seasonal); estimates of mean number of fish per pellet and mean fish size; and a fecal pathway correction factor (4.0 percent), we estimate total annual number of fish consumed by cormorants in the eastern basin of Lake Ontario to …

Double-Crested Cormorant Impacts On Sport Fish: Literature Review, Agency Survey, And Strategies, John L. Trapp, Stephen J. Lewis, Diane M. Pence

Symposium on Double-Crested Cormorants: Population Status and Management Issues in the Midwest

In response to concerns expressed by anglers, the U.S. Fish and Wildlife Service conducted an extensive review of published studies done throughout the United States and Canada on the impacts of double-crested cormorants (Phalacrocorax auritus) on sport-fish populations in open waters. The literature review indicated that fish species valued by sport and commercial anglers make up a very small proportion of the cormorants’ diet and that these birds have a minor effect on fish populations compared to the effects of sport and commercial fishing, natural predation, and other mortality factors. The Service sent a questionnaire to State agencies, …

Strategies To Reduce Double-Crested Cormorant Depredation At Aquaculture Facilities In Mississippi, David S. Reinhold, Charles A. (Bo) Sloan

Symposium on Double-Crested Cormorants: Population Status and Management Issues in the Midwest

Double-crested cormorant (Phalacrocorax auritus) depredation throughout the Southeastern United States has been on the increase over the past 20 years. The increase in depredation coincides with the growth of the aquaculture industry and an expansion of double-crested cormorant wintering populations throughout the Southeast. The U.S. Department of Agriculture–Animal and Plant Health Inspection Service–Wildlife Services plays a major role in reducing double-crested cormorant damage. Nonlethal harassment on farms, dispersal from night roosts, and lethal control have reduced double-crested cormorant depredation at aquaculture farms in Mississippi. However, the efficiency and compatibility of current methods of reducing double-crested cormorant depredation must …

Possible Effects Of Catfish Exploitation On Overwinter Body Condition Of Double-Crested Cormorants, James F. Glahn, Mark E. Tobin, J. Brent Harrel

Symposium on Double-Crested Cormorants: Population Status and Management Issues in the Midwest

Concurrent with the rapid growth of the Mississippi catfish industry during the 1980’s, there was evidence of similar growth of double-crested cormorant (Phalacrocorax auritus) populations wintering in the delta region of Mississippi. Observational and food habits studies indicate that this expansive industry, incorporating more than 100,000 acres of ponds, provides an enormous food base for overwintering populations estimated in recent years to exceed 50,000 birds. As much as 75 percent of the diet in certain roosting areas of the Mississippi delta consisted of catfish, and according to bioenergetic models cormorants can exploit as much as 940 metric tons …

Review Of The Population Status And Management Of Double-Crested Cormorants In Ontario, C. Korfanty, W.G. Miyasaki, J.L. Harcus

Symposium on Double-Crested Cormorants: Population Status and Management Issues in the Midwest

We prepared this review of the status and management of double-crested cormorants (Phalacrocorax auritus) in Ontario, with management options, in response to concerns expressed about possible negative impacts of large numbers of the birds on fish stocks, and vulnerable, threatened and endangered species. Double-crested cormorants are native to Ontario and were first recorded breeding on Lake of the Woods in northwestern Ontario in the late 1700’s. The birds spread eastward to colonize all of the Great Lakes by the 1930’s. A decline in cormorant populations on the Great Lakes from the 1950’s to the 1970’s has been attributed …

Information Needs For The Double-Crested Cormorant In Midwestern North America, As Identified By An Audience Survey , D.V. (Chip) Weseloh, Stephen J. Lewis

Symposium on Double-Crested Cormorants: Population Status and Management Issues in the Midwest

Double-crested cormorant (DCCO) research needs and data gaps were identified in the early 1990’s by Erwin (1995) and Nisbet (1995). Erwin (1995) recommended four areas of research: (1) large-scale banding and marking to determine age- and sex specific survival and fecundity, (2) studies of movements during migration and winter, (3) assessment of limiting factors such as contaminants and disease, especially in light of recent Newcastle disease in cormorants, and (4) evaluation of economic impacts of cormorants on cultured fishes and ways to reduce predation by fish-eating birds.

Appendix 1: Authors' Affiliations

Symposium on Double-Crested Cormorants: Population Status and Management Issues in the Midwest

Authors' affiliations

Ets-Core Binding Factor: A Common Composite Motif In Antigen Receptor Gene Enhancers, Batu Erman, Marta Cortes, Barbara S. Nikolajczyk, Nancy A. Speck, Ranjan Sen

Dartmouth Scholarship

A tripartite domain of the murine immunoglobulin μ heavy-chain enhancer contains the μA and μB elements that bind ETS proteins and the μE3 element that binds leucine zipper-containing basic helix-loop-helix (bHLH-zip) factors. Analysis of the corresponding region of the human μ enhancer revealed high conservation of the μA and μB motifs but a striking absence of the μE3 element. Instead of bHLH-zip proteins, we found that the human enhancer bound core binding factor (CBF) between the μA and μB elements; CBF binding was shown to be a common feature of both murine and human enhancers. Furthermore, mutant enhancers that bound …

Illinois State University Board Of Trustees Meeting Materials, December 09, 1997, Board Of Trustees

Illinois State University Board of Trustees (1995-2013)

Minutes, reports, and action items relating to the December 9, 1997 meeting of the Illinois State University Board of Trustees.

The Daily Egyptian, December 08, 1997, Daily Egyptian Staff

December 1997

No abstract provided.

Vcu Voice (1997-12-08)

VCU Voice, 1988-1998

VCU Today, the University’s first official administrative organ, began as a somewhat irregular monthly publication but moved to a bi-weekly newspaper format in the 1980s. The newspaper changed its name to VCU Voice in 1988 and ten years later it appeared under the title UniverCity News. As it neared the end of its run as a physical newspaper, the publication became simply VCU News. These four publications were essentially the same periodical published under different titles by the Office of University Relations. VCU News appeared online for the first time in 2002.

Current, December 08, 1997, University Of Missouri-St. Louis

Current (1990s)

No abstract provided.

Probing The Intermolecular Hydrogen Bonding Of Water Molecules At The Ccl4/Water Interface In The Presence Of Charges Soluble Surfactant, D. E. Gragson, G. L. Richmond

Chemistry and Biochemistry

The molecular structure and hydrogen bonding of water molecules at the CCl₄/water interface in the presence of a charged soluble surfactant has been explored in this study using vibrational sum frequency generation. By examining OH stretching modes that are highly sensitive to the local hydrogen bonding environment it is found that water molecules at the CCl₄/water interface both in the presence and absence of a charged soluble surfactant are predominantly in a tetrahedral arrangement much like the structure ofice. Isotopic dilution studies have been employed to further characterize this icelike interfacial structure. Ablueshift ofapproximately120 cm^{-1 …}

Columbia Chronicle (12/08/1997), Columbia College Chicago

Columbia Chronicle

Student newspaper from December 8, 1997 entitled The Chronicle of Columbia College Chicago. This issue is 16 pages and is listed as Volume XXXI, Number 11. Cover story: "Movie theaters open on South, West sides" Editor in Chief: Merma Ayi

Daily Eastern News: December 08, 1997, Eastern Illinois University

December

No abstract provided.

December 8, 1997 Reporter, University Of Alabama At Birmingham

eReporter (campus newsletter)

No abstract provided.

Monitor Newsletter December 08, 1997, Bowling Green State University

Monitor

Official Publication of Bowling Green State University for Faculty and Staff

University Of Northern Iowa Faculty Senate Meeting Agenda, December 8, 1997, University Of Northern Iowa. Faculty Senate.

Documents - Faculty Senate

Meeting agenda from the Faculty Senate of the University of Northern Iowa.

University Of Northern Iowa Faculty Senate Meeting Minutes, December 8, 1997, University Of Northern Iowa. Faculty Senate.

Documents - Faculty Senate

Meeting minutes from the Faculty Senate of the University of Northern Iowa.

Deafdigest: Vol. 2, No. 18 December 7, 1997, Barry Strassler

DeafDigest 1997

No abstract provided.

The Daily Egyptian, December 05, 1997, Daily Egyptian Staff

December 1997

No abstract provided.

The Courier, Volume 31, Issue 9, December 5, 1997, The Courier, College Of Dupage

The Courier

Stories:

Interactive Cloning Discussions At COD

SGA Increases Student Involvement–Fall Election Attracts More Voters Than The Past Two Combined

Older Adult Institute Exceeds Expectations In Variety, Number Of Winter Classes

Student Art Gallery Is Open

People:

Chris Thielman

Wendy Scarpa

Nicholas Sistler

Joby Francis

Hyaluronan Synthase Of Chlorella Virus Pbcv-1, Paul L. Deangelis, Wei Jing, Michael V. Graves, Dwight E. Burbank, James L. Van Etten

Department of Plant Pathology: Faculty Publications

Sequence analysis of the 330-kilobase genome of the virus PBCV-1 that infects a chlorella-like green algae revealed an open reading frame, A98R, with similarity to several hyaluronan synthases. Hyaluronan is an essential polysaccharide found in higher animals as well as in a few pathogenic bacteria. Expression of the A98R gene product in Escherichia coli indicated that the recombinant protein is an authentic hyaluronan synthase. A98R is expressed early in PBCV-1 infection and hyaluronan is produced in infected algae. These results demonstrate that a virus can encode an enzyme capable of synthesizing a carbohydrate polymer and that hyaluronan exists outside of …

The Ucf Report, Vol. 20 No. 10, December 5, 1997, University Of Central Florida

The UCF Report

Institute 'gateway to universe'; Center brings out best in faculty: Cozy atmosphere, knowledgeable staff make center great place to figure out solutions to problems.

Volume 35, Number 16: December 5, 1997, University Of North Dakota

University Letter Archive

No abstract provided.

Volume 35, Number 16: December 5, 1997, University Of North Dakota

University Letter Archive

No abstract provided.

When The "Soft" Sciences Become Hard: The Safety Of Canadian Nuclear Reactors, Ibpp Editor

International Bulletin of Political Psychology

The author discusses the ins-and-outs of the safety of Canadian nuclear reactors.

Spartan Daily, December 5, 1997, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily (School of Journalism and Mass Communications)

Volume 109, Issue 66