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Historical Vegetation Of Three Salmon-Bearing Watersheds In The Interior Columbia River Basin, Tyanna Smith 2014 Portland State University

Historical Vegetation Of Three Salmon-Bearing Watersheds In The Interior Columbia River Basin, Tyanna Smith

PSU McNair Scholars Online Journal

Land use practices can be a contributing factor to environmental degradation and have been the focus of many ecological studies. One aspect that is less addressed is land use history and the effects that past practices, such as logging and grazing, can have on the current landscape. This paper describes research and the synthesis of material on the environmental history and watershed characteristics for three watersheds located within spawning and rearing areas for Chinook salmon in the Grande Ronde River Basin in Northeast Oregon: upper Grande Ronde River, Catherine Creek, and Minam River. The Grande Ronde Basin is critical spawning ...


The Centennial Of The Smith-Lever Act And Aquaculture Extension, Michael A. Rice 2014 University of Rhode Island

The Centennial Of The Smith-Lever Act And Aquaculture Extension, Michael A. Rice

Michael A Rice

May 8, 2014 marked the centennial of the landmark Smith-Lever Act in the United States that created the Cooperative Extension service at Land Grant Universities nationwide. Major contributors to the 1914 Act were Seaman A. Knapp and Kenyon L. Butterfield. A half century later the Sea Grant College Program was proposed by Athelstan F. Spilhaus expanding Extension programming to the sea. Together these two programs have been a major force in promoting the growth of the aquaculture industry in America.


2014 Nebraska Beef Cattle Report, 2014 University of Nebraska - Lincoln

2014 Nebraska Beef Cattle Report

Nebraska Beef Cattle Reports

Contents:

Cow/Calf

Effect of Pubertal Status and Number of Estrous Cycles Prior to the Breeding Season on Pregnancy Rate in Beef Heifers .5

Comparison of Long-term Progestin-based Synchronization Protocols on Fixed-time AI pregnancy Rate in Beef Heifers . 8

Androgen Excess in Beef Cows Results in Altered Theca Cell Gene Expression and Fertility 11

Follicular Vascular Endothelial Growth Factor A Expression Before and After the LH Surge . 14

Evaluation of Genomic Predictors for Red Angus Cattle . 17

Preconception Distillers Grains Supplementation Improves Mature Beef Cow Return to Estrous . 19

Impact of Supplemental Protein Source on Pregnant Heifers 21

Effects of ...


New Insight Into The Effects Of Small Heat Shock Proteins On Callipyge Lamb Meat Tenderness, Traci Cramer, Yuan H Brad Kim, Danyi Ma, Jolena N. Waddell, Moriah Penick 2014 Purdue University

New Insight Into The Effects Of Small Heat Shock Proteins On Callipyge Lamb Meat Tenderness, Traci Cramer, Yuan H Brad Kim, Danyi Ma, Jolena N. Waddell, Moriah Penick

The Summer Undergraduate Research Fellowship (SURF) Symposium

Callipyge lambs are a type of sheep that are genetically known to produce tough meat. High expression of calpastatin, which inhibits proteolytic activity of µ-calpain, has been identified as the main factor behind the toughness of callipyge lamb meat. Another group of proteins called small heat shock proteins (sHSP) has recently been suggested for its possible involvement in tenderness development of meat, where up-regulation of sHSP may be associated with toughness. However, the role of sHSP in meat tenderization of callipyge lambs has never been investigated; therefore, the objective of this study is to determine possible involvement of sHSP in ...


From Progesterone In Biopsies To Estimates Of Pregnancy Rates: Large Scale Reproductive Patterns Of Two Sympatric Species Of Common Dolphin, Delphinus Spp. Off California, Usa And Baja, Mexico, Nicholas Marc Kellar, Marisa L. Trego, Susan J. Chivers, Fredrick I. Archer, Wayne L. Perryman 2014 Occidental College

From Progesterone In Biopsies To Estimates Of Pregnancy Rates: Large Scale Reproductive Patterns Of Two Sympatric Species Of Common Dolphin, Delphinus Spp. Off California, Usa And Baja, Mexico, Nicholas Marc Kellar, Marisa L. Trego, Susan J. Chivers, Fredrick I. Archer, Wayne L. Perryman

Bulletin of the Southern California Academy of Sciences

Blubber progesterone levels were measured in biopsy samples and used to predict the pregnancy status of 507 female common dolphins (204 long-beaked common dolphins, Delphinus capensis, and 303 short-beaked common dolphins, D. delphis). Samples were collected in the coastal waters of the eastern North Pacific between central California, USA and the southern end of Baja California, Mexico. The percentage of females pregnant was similar between the two species: 22.1% (n = 45) of D. capensis and 28.1% (n = 85) of D. delphis. For both species we found strong geographic patterns in pregnancy, suggesting that some areas were more conducive ...


The Status Of Fishes In The Missouri River, Nebraska: Pallid Sturgeon (Scaphirhynchus Albus), Kirk D. Steffensen, Dane A. Shuman, Robert A. Klumb, Sam Stukel 2014 University of Nebraska - Lincoln

The Status Of Fishes In The Missouri River, Nebraska: Pallid Sturgeon (Scaphirhynchus Albus), Kirk D. Steffensen, Dane A. Shuman, Robert A. Klumb, Sam Stukel

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Anthropogenic alterations to the Missouri River have placed the Pallid Sturgeon (Scaphirhynchus albus) population in jeopardy and contributed to their listing as an endangered species. Pallid sturgeon were always less common than the sympatric Shovelnose Sturgeon (S. platorynchus); however, Pallid Sturgeon seemed to be more affected by river alterations as the river sturgeon ratio has become more skewed towards Shovelnose Sturgeon. Shortly after listing, population augmentation with hatchery produced Pallid Sturgeon began to supplement the diminishing wild population. Therefore, the objective of this study was to present the current population status of the Pallid Sturgeon in the Missouri River along ...


The Status Of Fishes In The Missouri River, Nebraska: Shovelnose Sturgeon (Scaphirhynchus Platorynchus), Kirk D. Steffensen, Sam Stukel, Dane A. Shuman 2014 University of Nebraska - Lincoln

The Status Of Fishes In The Missouri River, Nebraska: Shovelnose Sturgeon (Scaphirhynchus Platorynchus), Kirk D. Steffensen, Sam Stukel, Dane A. Shuman

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

The Shovelnose Sturgeon Scaphirhynchus platorynchus remains the most abundant riverine sturgeon species in North American despite the anthropogenic modifications that have occurred throughout their historic range; however, their populations have declined throughout Nebraska since the construction of Fort Randall and Gavins Point Dams. Therefore, the objective of this study was to present the current status of Shovelnose Sturgeon in the Missouri River along Nebraska’s border. Data was acquired from 2003 to 2012 from all reaches of the Missouri River along Nebraska’s eastern border. Catch rates of Shovelnose Sturgeon increased in a downstream trend and were highest in the ...


The Effect Of A Small Ruminant Farm Operation And Sustainable Farm Practices: Soil Quality And Run-Off At The University Hickory Hill Farm, Delaware, Gulnihal Ozbay Dr., Akida J. Ferguson, Raju Khatiwada, Lathadevi K. Chintapenta 2014 Tuskegee University

The Effect Of A Small Ruminant Farm Operation And Sustainable Farm Practices: Soil Quality And Run-Off At The University Hickory Hill Farm, Delaware, Gulnihal Ozbay Dr., Akida J. Ferguson, Raju Khatiwada, Lathadevi K. Chintapenta

Professional Agricultural Workers Journal

This project was designed to evaluate the effect of ruminant grazing practices at Hickory Hill Farm on the surrounding environment by measuring soil nutrients and runoff chemistry. Three pastures on the farm (Goat, Cattle and Control) were selected for soil sampling and nutrient analyses were recorded. Physical water quality parameters were conducted on the runoff collected from the farm after Hurricane Sandy. The sites with animal activity had higher levels of sulfate, phosphate, nitrate, Mehlich 3 phosphorus and conductivity when compared to control site. However, the control site had slightly higher pH and chloride levels. Nitrogen and phosphorous levels were ...


Microalgae In Eastern Pacific White Shrimp Hatcheries: A Review On Roles And Culture Environments, Wa Iba, Michael A. Rice, Gary H. Wikfors 2014 University of Rhode Island

Microalgae In Eastern Pacific White Shrimp Hatcheries: A Review On Roles And Culture Environments, Wa Iba, Michael A. Rice, Gary H. Wikfors

Michael A Rice

Demand for shrimp, particularly the eastern Pacific white shrimp Litopenaeus vannamei (Boone 1931), will continue to increase in Asian and worldwide seafood markets. Providing shrimp farms with a robust, healthy, and continuous supply of shrimp seed is a challenge that must be addressed to meet the demand. Shrimp feed during hatchery production still relies on live microalgae, despite many years of effort to find suitable full or partial-replacement diet alternatives. Successful mass production of microalgae for hatchery feed to obtain good quality shrimp seedstock depends on a number of environmental factors that determine the growth and nutritional values of various ...


Selection For Enhanced Disease Resistance And Growth Performance In Cross-Bred Eastern Oysters, Crassostrea Virginica, Paul Rawson 2014 The University of Maine

Selection For Enhanced Disease Resistance And Growth Performance In Cross-Bred Eastern Oysters, Crassostrea Virginica, Paul Rawson

University of Maine Office of Research and Sponsored Programs: Final Reports

Through a replicated field trial we will test the hypothesis that enhanced disease resistance to multiple diseases and improved growth can be realized through a combination of interline crossing and genetic selection on cross-bred lines of oysters.

Together with oyster growers, hatchery operators and extension agents, we will develop guidelines and protocols for the transfer of the best performing lines from our program to commercial hatcheries and the industry. Project results and updates on access to broodstock will be presented at the annual NACE meeting, at annual meetings of the National Shellfisheries Association and via a Fact Sheet at the ...


Game Birds Of The World: A Catalog Of The Madson Collection, Paul Johnsgard, Eric Fowler, Michael Forsberg, Mary B. Brown, Dee Ebbeka, Jacki Loomis, Patricia W. Freeman 2014 University of Nebraska - Lincoln

Game Birds Of The World: A Catalog Of The Madson Collection, Paul Johnsgard, Eric Fowler, Michael Forsberg, Mary B. Brown, Dee Ebbeka, Jacki Loomis, Patricia W. Freeman

Paul Johnsgard Collection

This remarkable collection of ornithological specimens is a gift of Everett C. Madson, M.D., a graduate of the University of Nebraska-Lincoln, to the University of Nebraska State Museum in honor of Paul Johnsgard, Ph.D., Professor Emeritus of the School of Biological Sciences.

Contents:

Foreword

Introduction

Biography - Paul A. Johnsgard

Biography - Everett C. Madson

Species Profiles and Photographs

Tinamous (Order Tinamiformes, Family Tinamidae)

Spotted Tinamou (Nothura maculosa)

Waterfowl (Order Anseriformes)

Ducks, Geese and Swans (Family Anatidae)

Whistling Ducks (Tribe Dendrocygnini)

White-faced Whistling Duck (Dendrocygna vidu

Geese and Swans (Tribe Anserini)

Black Swan (Cygnus atratus).

Tundra [Whistling] Swan (Cygnus columbianus ...


Rapid: Effect Of A Very Low Nao Event On The Abundance Of The Lipid-Rich Planktonic Copepod, Calanus Finmarchicus, In The Gulf Of Maine, Jeffrey Runge 2014 The University of Maine

Rapid: Effect Of A Very Low Nao Event On The Abundance Of The Lipid-Rich Planktonic Copepod, Calanus Finmarchicus, In The Gulf Of Maine, Jeffrey Runge

University of Maine Office of Research and Sponsored Programs: Final Reports

Test the hypothesis that a distinctly lower abundance of the planktonic copepod, Calanus finmarchicus in the Gulf of Maine follows the occurrence of very negative winter phases of the North Atlantic Oscillation (NAO). In 2010, the station-based winter NAO index was -4.64, even more intense than the negative (-3.78) 1996 NAO winter index. If a two-year lagged relationship between very negative NAO winter indices and Calanus abundance in the Gulf of Maine is valid, cooler water from the Labrador Sea should replace Atlantic Temperate Slope Water in the GoM in 2012, inducing a major climatic ecosystem event on ...


The Innate Immune Response In Eisenia Fetida To Microbial Challenges, Aaron Schindler 2014 Minnesota State University, Mankato

The Innate Immune Response In Eisenia Fetida To Microbial Challenges, Aaron Schindler

Journal of Undergraduate Research at Minnesota State University, Mankato

The common earthworm, Eisenia fetida, exhibits a rudimentary immune system. The earthworm needs cellular and chemical responses against a constant microbial exposure from its natural environment. Some cellular and chemical responses are found in the coelomic fluid and have been shown to demonstrate anti-microbial characteristics. This project uses microscopy and modified staining techniques to differentiate and categorize the cellular components found in the coelomic fluid. Following a microbial challenge by Klebsiella pneumoniae, an inflammatory response was initiated. Six groups of earthworms were injected with 0.05 ml of 1.0 x 106 cfu /ml K. pneumoniae on day one and ...


Search For The Causative Organism Of Waterfowl Deaths At Lake Onalaska, Derek Skillings 2014 Minnesota State University, Mankato

Search For The Causative Organism Of Waterfowl Deaths At Lake Onalaska, Derek Skillings

Journal of Undergraduate Research at Minnesota State University, Mankato

American coots (Fulica americana) and diving ducks, including lesser scaup (Aythya affinis) and ring-necked ducks (Aythya collaris) have been dying in significant numbers on Lake Onalaska since 2001. Bird mortality is being attributed to parasitic infections from two intestinal trematodes, Cyathocotyle bushiensis and Sphaeridiotrema globulus. The birds begin dying in as little as two weeks of landing at this lake. Rapid mortality is not typically associated with trematode parasitism. Assuming these birds acquired their infections at Lake Onalaska, leads to the conclusion that our current understanding of the disease in this parasite-host system is lacking. Neorickettsiales are a group of ...


Effect Of Conditioned Medium On The Recovery Of Dormant Mycobacteria In Culture, Kelly E. Rock 2014 Minnesota State University, Mankato

Effect Of Conditioned Medium On The Recovery Of Dormant Mycobacteria In Culture, Kelly E. Rock

Journal of Undergraduate Research at Minnesota State University, Mankato

Mycobacterium avium subsp. paratuberculosis (Mpt) is the etiologic agent of Johne’s disease, a chronic intestinal disease in cattle that threatens the economic viability of dairy farming. Diagnostic culture is typically unrewarding until several years after infection when clinical signs can be observed. This leads to widespread infection within the herd. Difficulty in culturing Mpt may be a result of oxidative damage due to the increased metabolic rate when dormant organisms are recovered in a nutrient rich medium. In order to improve recovery it is believed that some organisms secrete a growth factor in times of environmental stress which enables ...


Sustainable Service-Learning Projects In The Tropics: A Costa Rica Maymester, Kimberly Lutz 2014 Purdue University

Sustainable Service-Learning Projects In The Tropics: A Costa Rica Maymester, Kimberly Lutz

Purdue Journal of Service-Learning and International Engagement

International service-learning projects extend textbook knowledge into practical, real-world applications while giving students an opportunity to engage in a different culture. In May 2012, a group of Purdue students from various majors in the College of Agriculture, led by a student leader and faculty member, traveled to Costa Rica to complete several service-learning projects. These projects included: (1) the construction and installation of water filtration systems, (2) creating an animal health care curricula for local schools, and (3) finalizing a guidebook of fl ora and fauna to benefit an emerging ecotourism site. Maymester students met for an 8-week course prior ...


Spatial Dynamics In Fisheries Stock Assessment, Yong Chen 2014 The University of Maine

Spatial Dynamics In Fisheries Stock Assessment, Yong Chen

University of Maine Office of Research and Sponsored Programs: Final Reports

Most fisheries stock assessments assume that the spatial distribution of fish and/or fishing effort is random (Hilborn and Walters 1992), even though this is rarely the case (Paloheimo and Dickie 1964, Caddy 1975, Hilborn and Walters 1992, Tilzey 1994, Hutchings 1996, Chen et al. 1998, Hart 2001). The target stock is often aggregated and the distribution of fishing effort reflects this spatial pattern, along with other factors such as management restrictions, distance to port, vessel size, and the experience and habits of individual fishers. This often results in high spatial variation in fishing effort and mortality.

Ignoring this spatial ...


Fisheries Licensing For The Future Workshop, Paul Anderson 2014 The University of Maine

Fisheries Licensing For The Future Workshop, Paul Anderson

University of Maine Office of Research and Sponsored Programs: Final Reports

We have 1) hosted the Licensing Workshop and 2) drafted a white paper report from that meeting as stated in the original proposal. Last year we asked for a no cost extension identifying additional outcomes given the political climate and need for organizing discussions among influential policymakers. We have convened a Working Group of these policymakers twice in the past 6 months and have still determined that while we have moved the licensing conversation to the fore, among these groups, licensing as an issue has not yet matured enough to support the release of a Licensing white paper.


Population Of Northern Leopard Frogs (Rana Pipiens) Migrating Between The Ney Frog Pond And The Minnesota River Valley For Spring Breeding, Rebecca Madison Pollack 2014 Minnesota State University, Mankato

Population Of Northern Leopard Frogs (Rana Pipiens) Migrating Between The Ney Frog Pond And The Minnesota River Valley For Spring Breeding, Rebecca Madison Pollack

Journal of Undergraduate Research at Minnesota State University, Mankato

The Northern Leopard Frogs (Rana pipiens) found at the Ney Nature Center (NNC) are particularly important to the NNC, as they are the initial population of frogs found deformed in 1995. As bio-indicators, frog populations can be used to assess the health of their surrounding environment. This study used standard herpetological field methods to gain a population estimate of Northern Leopard Frogs and the migration route used by these frogs as they moved up the bluffs of the Minnesota River Valley from their wintering site to the Ney Frog Pond for spring breeding. The results gathered provide the Ney Environmental ...


Developing Tools To Evaluate Spawning & Fertilization Dynamics Of The Giant Sea Scallop — Phase Ii: Field Trials In Experimental Populations, Richard A. Wahle, Peter Jumars 2014 The University of Maine

Developing Tools To Evaluate Spawning & Fertilization Dynamics Of The Giant Sea Scallop — Phase Ii: Field Trials In Experimental Populations, Richard A. Wahle, Peter Jumars

University of Maine Office of Research and Sponsored Programs: Final Reports

Objective 1 — Sperm advection-diffusion model: Develop a two-dimensional spatial model to predict the concentration o f sperm and effective range of fertilization in a sperm plume at varying distances from a source population of spawning males under scenarios of synchronous and asynchronous spawning.

Objective 2 — Fertilization assays in field populations: Conduct a time series of fertilization assays over experimental populations of scallops to (a) further develop the methodology to assess ambient sperm loads in scallop populations over the course of the spawning season, (b) compare model predictions about spatial patterns of sperm concentration and fertilization generated in Objective 1 to ...


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