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Aquaculture In Africa: Aquatic Animal Welfare, Impact On The Environment And The Sustainability Of The Sector, Mwenda M. Mbaka, Janice H. Cox, Stephen Ronan 2022 WellBeing International

Aquaculture In Africa: Aquatic Animal Welfare, Impact On The Environment And The Sustainability Of The Sector, Mwenda M. Mbaka, Janice H. Cox, Stephen Ronan

Aquaculture

The African aquaculture sector recorded the fastest growth in the world between 2006-2018, averaging 10% or more, and is expected to partially fill the growing fish supply-demand gap up to 2063. In 2018, there were about 1.2 million aquafarmers across the continent, an increase from 920 thousand in 2014. According to the African Development Bank, expansion of aquaculture in Africa is hampered by "the overwhelming predominance of tilapia farming, which relies heavily on the production of fingerlings from a limited number of genetically improved strains that are resistant to the many diseases affecting this species, and on the production of …


Using Landsat Satellite Imagery To Estimate Groundcover In The Grainbelt Of Western Australia, Justin Laycock, Nick Middleton, Karen Holmes 2022 Department of Primary Industries and Regional Development, Western Australia

Using Landsat Satellite Imagery To Estimate Groundcover In The Grainbelt Of Western Australia, Justin Laycock, Nick Middleton, Karen Holmes

Resource management technical reports

Maintaining vegetative groundcover is an important component of sustainable agricultural systems and plays a critical function for soil and land conservation in Western Australia’s (WA) grainbelt (the south-west cropping region). This report describes how satellite imagery can be used to quantitatively and objectively estimate total vegetative groundcover, both in near real time and historically across large areas. We used the Landsat seasonal fractional groundcover products developed by the Joint Remote Sensing Research Program from the extensive archive of Landsat imagery. These products provide an estimate of the percentage of green vegetation, non-green vegetation and bare soil for each 30 m …


Divergent Serpentoviruses In Free-Ranging Invasive Pythons And Native Colubrids In Southern Florida, United States, Steven B. Tillis, Jillian M. Josimovich, Melissa A. Miller, Laura L. Hoon-Hanks, Arik M. Hartmann, Natalie M. Claunch, Marley E. Iredale, Tracey D. Logan, Amy A. Yackel Adams, Ian A. Bartoszek, John S. Humphrey, Bryan M. Kluever, Mark D. Stenglein, Robert N. Reed, Christina M. Romagosa, James F.X. Wellehan, Robert J. Ossiboff 2022 University of Florida

Divergent Serpentoviruses In Free-Ranging Invasive Pythons And Native Colubrids In Southern Florida, United States, Steven B. Tillis, Jillian M. Josimovich, Melissa A. Miller, Laura L. Hoon-Hanks, Arik M. Hartmann, Natalie M. Claunch, Marley E. Iredale, Tracey D. Logan, Amy A. Yackel Adams, Ian A. Bartoszek, John S. Humphrey, Bryan M. Kluever, Mark D. Stenglein, Robert N. Reed, Christina M. Romagosa, James F.X. Wellehan, Robert J. Ossiboff

USDA Wildlife Services - Staff Publications

Burmese python (Python bivittatus) is an invasive snake that has significantly affected ecosystems in southern Florida, United States. Aside from direct predation and competition, invasive species can also introduce nonnative pathogens that can adversely affect native species. The subfamily Serpentovirinae (order Nidovirales) is composed of positive-sense RNA viruses primarily found in reptiles. Some serpentoviruses, such as shingleback nidovirus, are associated with mortalities in wild populations, while others, including ball python nidovirus and green tree python nidovirus can be a major cause of disease and mortality in captive animals. To determine if serpentoviruses were present in invasive Burmese …


Resource Document On The Nexus Between Animal Welfare, The Environment, And Sustainable Development, WellBeing International 2022 WellBeing International

Resource Document On The Nexus Between Animal Welfare, The Environment, And Sustainable Development, Wellbeing International

Nexus – UNEP – Animal Welfare, Environment, Sustainable Development

This Resource Document has been developed to explore the Nexus (links) between Animal Welfare, the Environment, and Sustainable Development. The document includes relevant citations and reports addressing the topics encompassed by the Nexus. It will be maintained as a “living document” (subject to revision) in the WellBeing International Studies Repository. The original document and subsequent revisions will be kept in the Repository to provide a record of the changes.


A Novel Vaccine Candidate Against Rabbit Hemorrhagic Disease Virus 2 (Rhdv2) Confers Protection In Domestic Rabbits, Angela M. Bosco-Lauth, Bethany Cominsky, Stephanie Porter, J. Jeffrey Root, Amber Schueler, Gary Anderson, Sara VanderWal, Andy Benson 2022 Colorado State University

A Novel Vaccine Candidate Against Rabbit Hemorrhagic Disease Virus 2 (Rhdv2) Confers Protection In Domestic Rabbits, Angela M. Bosco-Lauth, Bethany Cominsky, Stephanie Porter, J. Jeffrey Root, Amber Schueler, Gary Anderson, Sara Vanderwal, Andy Benson

USDA Wildlife Services - Staff Publications

OBJECTIVE To evaluate efficacy of a novel vaccine against rabbit hemorrhagic disease virus 2 (RHDV2) in domestic rabbits.

ANIMALS 40 New Zealand White rabbits obtained from a commercial breeder.

PROCEDURES Rabbits were vaccinated and held at the production facility for the duration of the vaccination phase and transferred to Colorado State University for challenge with RHDV2. Rabbits were challenged with oral suspensions containing infectious virus and monitored for clinical disease for up to 10 days. Rabbits that died or were euthanized following infection were necropsied, and livers were evaluated for viral RNA via RT-PCR.

RESULTS None of the vaccinated animals …


Gis Data: Worcester County, Maryland Shoreline Situation Report, Karinna Nunez, Tamia Rudnicky, Sharon Killeen, Jessica Hendricks, Catherine R. Duning, Evan Hill 2022 Virginia Institute of Marine Science

Gis Data: Worcester County, Maryland Shoreline Situation Report, Karinna Nunez, Tamia Rudnicky, Sharon Killeen, Jessica Hendricks, Catherine R. Duning, Evan Hill

Data

No abstract provided.


Gis Data: Somerset County, Maryland Shoreline Situation Report, Karinna Nunez, Tamia Rudnicky, Sharon Killeen, Jessica Hendricks, Catherine R. Duning, Evan Hill 2022 Virginia Institute of Marine Science

Gis Data: Somerset County, Maryland Shoreline Situation Report, Karinna Nunez, Tamia Rudnicky, Sharon Killeen, Jessica Hendricks, Catherine R. Duning, Evan Hill

Data

No abstract provided.


Gis Data: Charles County, Maryland Shoreline Situation Report, Karinna Nunez, Tamia Rudnicky, Sharon Killeen, Jessica Hendricks, Catherine R. Duning, Evan Hill 2022 Virginia Institute of Marine Science

Gis Data: Charles County, Maryland Shoreline Situation Report, Karinna Nunez, Tamia Rudnicky, Sharon Killeen, Jessica Hendricks, Catherine R. Duning, Evan Hill

Data

Shoreline Situation Reports (SSR) were first generated by VIMS in the 1970s to report the condition and status of the shore lands. The SSR series were published in hardcopy on a county by county basis for each of the Tidewater Virginia localities. The reports were intended to assist planners, managers, and regulators in decisions pertaining to management of coastal areas and natural resources therein. The techniques developed for Virginia's shoreline are used to create similar reports for the Maryland shoreline. Data collected describes conditions in the immediate riparian zone, the bank, and along the shore.


Gis Data: St. Mary’S County, Maryland Shoreline Situation Report, Karinna Nunez, Tamia Rudnicky, Sharon Killeen, Jessica Hendricks, Catherine R. Duning, Evan Hill 2022 Virginia Institute of Marine Science

Gis Data: St. Mary’S County, Maryland Shoreline Situation Report, Karinna Nunez, Tamia Rudnicky, Sharon Killeen, Jessica Hendricks, Catherine R. Duning, Evan Hill

Data

No abstract provided.


New Guidance To Build Resiliency And Mitigate For Sea Level Rise As Elements Of The Chesapeake Bay Preservation Act, Pamela Mason, Julie Herman, Christine Tombleson, Jessica Hendricks, Karen Duhring 2022 Virginia Institute of Marine Science

New Guidance To Build Resiliency And Mitigate For Sea Level Rise As Elements Of The Chesapeake Bay Preservation Act, Pamela Mason, Julie Herman, Christine Tombleson, Jessica Hendricks, Karen Duhring

Reports

The Center for Coastal Resources Management (CCRM), Virginia Institute of Marine Science (VIMS), worked in collaboration with the Virginia Department of Environmental Quality (DEQ) and the Virginia Coastal Policy Center (VCPC) to develop guidance to inform the implementation of Chesapeake Bay Preservation Act (CBPA) regulations promulgated in 2021. The 2021 regulations added provisions to require local governments to consider climate changes, specifically flooding, sea level rise and storms, and the preservation of mature trees in the administration of the CBPA program. Specifically, CCRM developed analytical data using criteria specified in the CBPA regulations, of the National Oceanic and Atmospheric Administration …


Editor's Note, Padraig O'Malley 2022 University of Massachusetts Boston

Editor's Note, Padraig O'Malley

New England Journal of Public Policy

Stephanie Heckman is a visual artist who attended the Glasgow conference. “I attended COP26 as a visual storyteller,’ she says. “Visual storytelling (known also as graphic recording) involves the use of graphics, drawings and hand lettering to capture the essence of collective conversation. It is a tool for live notetaking and sense-making; it stimulates participants to engage with each other and complex subject matter, and makes the outcomes more memorable, engaging and accessible to others not present at these conversations.”

Stephanie was an accredited observer delegate at COP26 and a “civic participant” in the many events happening around Glasgow at …


Visual Report Of Cop26, Stéphanie Heckman 2022 University of Massachusetts Boston

Visual Report Of Cop26, Stéphanie Heckman

New England Journal of Public Policy

As a visual practitioner my job is to draw people’s thoughts, and in so doing, help people make sense of them. The visual summaries I create live during conferences aim to capture more than just the dry content, but also the dynamic, the mood and the unspoken. It is a tool more aligned with how our associative, sensory-fed brains work, for coping with the deluge of information that faces us these days. And it’s a tool that can help overcome language, learning and other barriers to access.

When I discovered in January 2020 that the next Conference of the Parties, …


Silver Carp Hypophthalmichthys Molitrix Are An Invasive Species Making Up A Large Portion Of The Fish Biomass In The Lower Portions Of The Tennessee River And The Cumberland River. This Species Is Expanding Its Range Throughout The Upper Portions Of These Rivers, Beginning With Kentucky Lake And Lake Barkley. Silver Carp Rarely Spawn In Kentucky Lake And Lake Barkely, But They Can Enter These Reservoirs Through The Lock Chamber. Thus, The Bottleneck Created By Lock Chambers Can Be Used To Control Expansion Of Invasive Silver Carp. Although Silver Carp Movement Patterns Have Been Studied In Other Portions Of The Tennessee River And Cumberland River The Lowermost Portion Of Both Rivers Below The Dams Is A Unique Environment In Which The Movement Of Silver Carp Has Not Yet Been Closely Studied. Understanding Silver Carp Movement Patterns In The Lower Part Of These Rivers Is Important For Understanding The Factors Which Influence Silver Carp Dam Crossing. We Used Acoustic Tags To Track Silver Carp In The Lower Tennessee River And Lower Cumberland River. Mobile Tracking Was Performed On Each River System Biweekly And Supplemented With Stationary Receivers Deployed Throughout Both Rivers. Movement Rates Will Be Compared To Water Temperature, Discharge, Elevation, And Barge Traffic. These Data Can Be Used To Assist Barrier Operation And Management To Prevent Silver Carp From Passing Into Kentucky Lake And Lake Barkley, Miranda Belanger, Timothy Spier 2022 Murray State University

Silver Carp Hypophthalmichthys Molitrix Are An Invasive Species Making Up A Large Portion Of The Fish Biomass In The Lower Portions Of The Tennessee River And The Cumberland River. This Species Is Expanding Its Range Throughout The Upper Portions Of These Rivers, Beginning With Kentucky Lake And Lake Barkley. Silver Carp Rarely Spawn In Kentucky Lake And Lake Barkely, But They Can Enter These Reservoirs Through The Lock Chamber. Thus, The Bottleneck Created By Lock Chambers Can Be Used To Control Expansion Of Invasive Silver Carp. Although Silver Carp Movement Patterns Have Been Studied In Other Portions Of The Tennessee River And Cumberland River The Lowermost Portion Of Both Rivers Below The Dams Is A Unique Environment In Which The Movement Of Silver Carp Has Not Yet Been Closely Studied. Understanding Silver Carp Movement Patterns In The Lower Part Of These Rivers Is Important For Understanding The Factors Which Influence Silver Carp Dam Crossing. We Used Acoustic Tags To Track Silver Carp In The Lower Tennessee River And Lower Cumberland River. Mobile Tracking Was Performed On Each River System Biweekly And Supplemented With Stationary Receivers Deployed Throughout Both Rivers. Movement Rates Will Be Compared To Water Temperature, Discharge, Elevation, And Barge Traffic. These Data Can Be Used To Assist Barrier Operation And Management To Prevent Silver Carp From Passing Into Kentucky Lake And Lake Barkley, Miranda Belanger, Timothy Spier

Student Scholarship & Creative Works

Silver Carp Hypophthalmichthys molitrix are an invasive species making up a large portion of the fish biomass in the lower portions of the Tennessee River and the Cumberland River. This species is expanding its range throughout the upper portions of these rivers, beginning with Kentucky Lake and Lake Barkley. Silver Carp rarely spawn in Kentucky Lake and Lake Barkley, but they can enter these reservoirs through the lock chamber. Thus, the bottleneck created by lock chambers can be used to control expansion of invasive Silver Carp. Although Silver Carp movement patterns have been studied in other portions of the Tennessee …


Evaluating Gizzard Shad Dorosoma Cepedianum Populations In Two Kentucky Reservoirs Recently Invaded By Silver Carp Hypophthalmichthys Molitrix, Nathan Klein, Timothy Spier 2022 Murray State University

Evaluating Gizzard Shad Dorosoma Cepedianum Populations In Two Kentucky Reservoirs Recently Invaded By Silver Carp Hypophthalmichthys Molitrix, Nathan Klein, Timothy Spier

Student Scholarship & Creative Works

Gizzard Shad Dorosoma cepedianum are an ecologically important fish species found in many reservoirs throughout the southeastern United States such as Kentucky Lake and Lake Barkley. One current challenge that Gizzard Shad may face in these two reservoirs is competition with the invasive Silver Carp Hypophthalmichthys molitrix. However, quantifying the impacts of this competition may be difficult because of limited baseline population data for Gizzard Shad in these two reservoirs. The objective of this study is to describe size structure, condition, age, growth, mortality, and spawning potential of these two populations. Gizzard Shad were collected by boat electrofishing and …


A Long-Term Vision For An Ecologically Sound Platte River, Andrew J. Caven, Melissa M. Mosier, Kristal Stoner, Bill Taddicken, Brice Krohn, Ashley Gramza, Craig R. Allen, Mike Carter, Michelle Koch, Kirk D. Schroeder, Sarah Bailey, Rich Walters, Brian C. Chaffin, Erica Gnuse, Amy Jones, Kate Bird 2022 Platte River Whooping Crane Maintenance Trust

A Long-Term Vision For An Ecologically Sound Platte River, Andrew J. Caven, Melissa M. Mosier, Kristal Stoner, Bill Taddicken, Brice Krohn, Ashley Gramza, Craig R. Allen, Mike Carter, Michelle Koch, Kirk D. Schroeder, Sarah Bailey, Rich Walters, Brian C. Chaffin, Erica Gnuse, Amy Jones, Kate Bird

Zea E-Books Collection

The Platte River extends about 310 mi (499 km) from North Platte, Nebraska, to its terminus at the Missouri River confluence near Plattsmouth, Nebraska. The Platte River Valley is a continentally significant ecosystem that serves as a major stopover for migratory waterbirds in the Central Flyway including the endangered Whooping Crane (Grus americana) and >1 million Sandhill Cranes (Antigone canadensis) at the peak of spring migration. However, the Platte River Valley also supports a great diversity of avifauna including grassland breeding birds, native stream fish, vascular plants, herpetofauna, mammals, pollinators, and aquatic macroinvertebrates. Despite ongoing conservation …


Timber Rattlesnake (Crotalus Horridus): A Species Conservation Assessment For The Nebraska Natural Legacy Project, Melissa J. Panella, Dan Fogell, Colleen Rothe-Groleau 2022 Nebraska Game and Parks Commission

Timber Rattlesnake (Crotalus Horridus): A Species Conservation Assessment For The Nebraska Natural Legacy Project, Melissa J. Panella, Dan Fogell, Colleen Rothe-Groleau

Nebraska Game and Parks Commission Publications

The primary goal in the development of at-risk species conservation assessments is to compile biological and ecological information that may assist conservation practitioners in making decisions regarding the conservation of species of interest. The Nebraska Natural Legacy Project recognizes the timber rattlesnake (Crotalus horridus) as a Tier 1 at-risk species. Provided here are general management recommendations regarding timber rattlesnakes. Conservation practitioners will need to use their professional judgment for management decisions based on objectives, location, and site-specific conditions. Based on the body of literature and available data, this species conservation assessment provides an overview of our current knowledge of timber …


2022 Academic Program Review, 2022 University of Nebraska - Lincoln

2022 Academic Program Review

School of Natural Resources: Documents and Reviews

No abstract provided.


Water Current, Volume 54, No. 2, Fall 2022, 2022 University of Nebraska - Lincoln

Water Current, Volume 54, No. 2, Fall 2022

Water Current Newsletter

Fall Harvest: Research, News and More from the Nebraska Water Center


Landscape Change, Scale, And Human Response To Change In The Great Plains, Kate Bird 2022 University of Nebraska-Lincoln

Landscape Change, Scale, And Human Response To Change In The Great Plains, Kate Bird

Dissertations & Theses in Natural Resources

Great Plains landscapes are undergoing changes at multiple spatial and temporal scales due to processes ranging from woody encroachment to climate change. These changes may fundamentally alter the agroecosystems of the Great Plains such that the provisioning of ecosystem services including biodiversity and livestock production is affected. Improving our understanding of the effects of landscape change at multiple scales and how humans perceive and respond to these changes is important for facilitating research and management that enhances the resilience of these agroecosystems. As such, I first applied discontinuity theory and graph theory to evaluate the functional connectivity of the Central …


Seasonal Habitat Selection By American White Pelicans, Frederick L. Cunningham, Guiming Wang, D. Tommy King 2022 USDA National Wildlife Research Center

Seasonal Habitat Selection By American White Pelicans, Frederick L. Cunningham, Guiming Wang, D. Tommy King

USDA Wildlife Services - Staff Publications

Resource utilization strategies of avian migrants are a major concern for conservation and management. Understanding seasonal habitat selection by migratory birds helps us explain the ongoing continental declines of migratory bird populations. Our objective was to compare the secondorder and third-order habitat selection by the American White Pelican (Pelecanus erythrorhynchos; hereafter pelican) between the breeding and non-breeding grounds. We tested the Lack hypothesis that habitat selection by migratory birds is stronger on the breeding grounds than on the nonbreeding grounds. We used random-effect Dirichlet-multinomial models to estimate the second-order habitat selection between the seasons with the GPS locations …


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