Evaluation Of A Novel Shallow Aggregate Ebb-And-Flood Culture System And Transplant Size Effects On Hydroponic Basil Yield,
2020
UT Valley University
Evaluation Of A Novel Shallow Aggregate Ebb-And-Flood Culture System And Transplant Size Effects On Hydroponic Basil Yield, Samuel Doty, Ryan W. Dickson, Michael Evans
Horticulture Faculty Publications and Presentations
Ornamental bedding plant operations transitioning to leafy greens and herb production must decide whether to invest in new hydroponic equipment or modify existing culture systems for edible crops. In addition, common practices used to increase space-use and production efficiencies during bedding plant production may be modified for hydroponic leafy greens and herbs, such as purchasing large seedlings for transplant. The objective of the first experiment was to evaluate plant growth in a modified and novel shallow aggregate ebb-and-flood (SAEF) system intended for bedding plant growers with an emphasis on comparing yield across four basil (Ocimum basilicum) cultivars grown …
Evaluating The Effect Of The Removal Of Non-Native Trout In Two High Elevation Tributary Streams In The Intermountain West,
2020
Utah State University
Evaluating The Effect Of The Removal Of Non-Native Trout In Two High Elevation Tributary Streams In The Intermountain West, Clint Brunson
All Graduate Plan B and other Reports, Spring 1920 to Spring 2023
Native fish species such as Bonneville Cutthroat Trout (BCT) require cold, clear, well-connected streams for spawning and rearing as well as access to complimentary habitats. Increasing river temperatures and lower water flows may have allowed non-native Brown Trout (BNT) to migrate into higher elevation pristine streams. Additionally, anthropogenic actions such as stocking non-native Brown and Brook (BKT) and Rainbow Trout (RBT) for angling opportunities impact BCT. Invasion of these tributaries by non-native species may reduce or eliminate cutthroat trout by predation, competition, displacement, genetic suppression, and exclusion. A seven-fold increase in BNT numbers of 50 to 350 from 2017 to …
Gear Specific Catch Rates And Population Dynamics Of Channel Catfish In The Mississippi River,
2020
Missouri State University
Gear Specific Catch Rates And Population Dynamics Of Channel Catfish In The Mississippi River, Colby Gainer
Graduate Theses/Dissertations
Perpetual anthropogenic alterations have imposed deleterious effects on aquatic ecosystems. In the Mississippi River, channelization, dams, and loss of floodplain connectivity have all been reputed as detrimental. Dynamic rate functions (i.e., recruitment, growth, and mortality) are the driving forces behind fish populations. Understanding population dynamics is important for guiding management decisions. Knowledge of vital rates can provide pivotal information that will determine spatiotemporal population-level changes within the system. In the Mississippi River, Channel Catfish are a commercially and recreationally important species. However, limited population demographic information currently exists in the Upper Mississippi River. We sought to determine the most effective …
Not The Latest Science: National Recommended Water Quality Criteria For Aquatic Life Under The Clean Water Act,
2020
University of Minnesota Law School
Not The Latest Science: National Recommended Water Quality Criteria For Aquatic Life Under The Clean Water Act, Sam B. Duggan, Christopher J. Kotalik
Minnesota Journal of Law, Science & Technology
No abstract provided.
A Histopathological Review Of Immune Response In Largemouth Bass To Parasitic Infections Of Soft Tissues,
2020
Columbus State University
A Histopathological Review Of Immune Response In Largemouth Bass To Parasitic Infections Of Soft Tissues, James D. Stephenson
Theses and Dissertations
The immune response can serve as a key indicator of a fish’s overall health and the effect stressors have on the health of the fish. Anthropogenic factors can stress a fish’s immune system and inhibit immune responses. This study investigated the response of eosinophilic cells and macrophage aggregates to parasites in the livers, spleens, and gonads of Largemouth Bass, Micropterus salmoides. Largemouth Bass were sampled from three bodies of water in the Chattahoochee Valley of varying levels of urbanization. Histopathology of the aforementioned organs was conducted to observe both the parasite density and immune response. Eosinophilic cells were shown …
The Potential Impacts Of Soy Protein On Fish Gut Health,
2020
Ateneo de Manila University
The Potential Impacts Of Soy Protein On Fish Gut Health, Vikas Kumar, Sakhawat Hossain, Janice A. Ragaza, Marina Rubio Benito
Biology Faculty Publications
Soy protein is the major source of protein as fishmeal replacement in fish feed because of its worldwide availability and low price. However, the presence of high carbohydrate content along with saponins, lectins, and phytates can have a negative impact on fish gut health. Based on the literature and our lab studies, dietary soybean meal can cause a dose-dependent type of distal intestine inflammation called enteritis in commercial fish species including salmonids. This leads to reduced absorptive capacity, increased mucus secretion, hyperpermeability, and leucocyte infiltration in the lamina propria and submucosa, also inducing the pro-inflammatory cytokine genes expression, including Il-1β, …
Molecular Characterisation Of Hsp70 Gene Expression, Histopathology And Immune System Of Snakehead Fish, Channa Striata, Under Temperature And Bacterial Stress,
2020
Universiti Malaya
Molecular Characterisation Of Hsp70 Gene Expression, Histopathology And Immune System Of Snakehead Fish, Channa Striata, Under Temperature And Bacterial Stress, Eid Elhussein Ihlam Ibrahim
Student Works (2020-2029)
Snakeheads are air-breathing freshwater fishes containing two genera, Channa (Asia) and Parachanna (Africa). The Asian genus is dominated by Channa striata which is found in southern and Southeastern parts of the continent. In this research, environmental and bacteria stressor to Channa striata were investigated. HSP70 gene was studied as an environmental stress gene (ChHSP70). Results showed a cDNA sequence of the gene to be (~918bp). It was also shown the gene is highly similar to that of other fish species. Constructing a phylogenetic tree of the gene across vertebrate species revealed six main clusters; same class remained conserved by showing …
The "Challenge" Of Depletion: Why The Oyster Fishery Is Not Self-Regulating,
2020
Gulf Coast Research Laboratory
The "Challenge" Of Depletion: Why The Oyster Fishery Is Not Self-Regulating, Eric N. Powell, John M. Klinck, Leanne M. Poussard
Faculty Publications
© 2020 National Shellfisheries Association. All rights reserved. The possibility that the economics of the oyster fishery impose a self-limitation on overharvesting has been proffered on occasion. The inefficiency of harvesting by the fishery has been evaluated and estimates of the exploitation rate permissible under conditions of maximum sustainable yield have been obtained in previous studies. The question becomes to what extent does the inefficiency of harvest interact with the economics of the fishery to compromise ready detection of overfishing? This study explores the possibility that the constraint of economics on the fishery occurs at oyster exploitation rates that are …
Growth And Immune Response Of Pond-Reared Giant Freshwater Prawn Macrobrachium Osenbergii Post Larvae Fed Diets Containing Chlorella Vulgaris,
2020
Ateneo de Manila University
Growth And Immune Response Of Pond-Reared Giant Freshwater Prawn Macrobrachium Osenbergii Post Larvae Fed Diets Containing Chlorella Vulgaris, Gian Carlo F. Maliwat, Stephanie F. Velasquez, Sheila Marie D. Buluran, Melchor Tayamen, Janice A. Ragaza
Biology Faculty Publications
A 70-day feeding trial was conducted to evaluate the efficacy of Chlorella vulgaris supplementation in diets of giant freshwater prawn (Macrobrachium rosenbergii) post larvae. Resistance of the prawns against Aeromonas hydrophila and several immune parameters (total hemocyte count and prophenoloxidase activity) were also assessed in the study. Iso-nitrogenous, iso-lipidic, and iso-caloric prawn feeds were prepared utilizing a fishmeal based positive control diet (F0) and four dietary treatments with C. vulgaris inclusion levels of 2 (F2), 4 (F4), 6 (F6), and 8 (F8) %. Post larvae of M. rosenbergii were stocked randomly (mean initial body weight of 0.39 ± …
Identification And Phylogenetic Analysis Of Channa Species From Riverine System Of Pakistan Using Coi Gene As A Dna Barcoding Marker,
2020
Department of Zoology, Quaid i Azam University Islamabad
Identification And Phylogenetic Analysis Of Channa Species From Riverine System Of Pakistan Using Coi Gene As A Dna Barcoding Marker, Muhammad Kamran, Atif Yaqub, Naila Malkani, Khalid Mahmood Anjum, Muhammad Nabeel Awan, Hamed Paknejad
Journal of Bioresource Management
Channa are the freshwater and important food fish species in Pakistan belonging to family Channidae. However, identification and phylogenetic analysis based on molecular tools of these species in Pakistan was not well known. Herein, the current investigation was conceptualized, which dealt with mitochondrial DNA sequences from three geographically distinct populations of this species from Pakistan’s water system. DNA from fin tissues was extracted. COI region of mtDNA was amplified using universal primers for fish. PCR products were sequenced. Phylogenetic analysis conducted in the present study, i.e. neighbor-joining (NJ) cladogram, maximum likelihood, K2P genetic divergence and histogram suggests that the studied …
Fish Community Composition And Structure Near A Freshwater River Diversion In Southeastern Louisiana,
2020
Louisiana State University and Agricultural and Mechanical College
Fish Community Composition And Structure Near A Freshwater River Diversion In Southeastern Louisiana, Rachel L. Snider
LSU Master's Theses
Gulf of Mexico estuaries, particularly in Louisiana, are among the world’s most productive, with landings of commercially- and recreationally-important species exceeding all other contiguous US states. Coastal wetlands are disappearing at an alarming rate because they have been impounded from Mississippi River water and sediment. Although controversial, one proposed solution is to re-route the Mississippi River through diversions and siphons to supply the freshwater and sediments necessary to rebuild vanishing wetlands, particularly in Barataria Bay and Breton Sound, LA. This strategy is one approach outlined in the Louisiana Coastal Master Plan. This project aimed to describe the composition and structure …
Understanding Recruitment Variation (Including The Collapse) Of Ballot’S Saucer Scallop Stocks In Western Australia And Assessing The Feasibility Of Assisted Recovery Measures For Improved Management In A Changing Environment. Frdc Project No. 2015/026,
2020
Department of Primary Industries and Regional Development, Western Australia
Understanding Recruitment Variation (Including The Collapse) Of Ballot’S Saucer Scallop Stocks In Western Australia And Assessing The Feasibility Of Assisted Recovery Measures For Improved Management In A Changing Environment. Frdc Project No. 2015/026, Arani Chandrapavan, Mervi Kangas, Nick Caputi
Fisheries Research Reports
This study examined possible contributing environmental factors to the recruitment variability of the Ballot’s saucer scallop Ylistrum balloti across the main stocks in Western Australia. The project was undertaken to explain the variation observed between years and between regions as well elucidating the potential cause of a major decline in scallop stocks following an extreme marine heatwave, with these findings intended to improve future management advice.
Blue Swimmer Crab ( Portunus Armatus ) And Sand Crab ( Ovalipes Australiensis ) Resource In The South Coast Bioregion Of Western Australia,
2020
Department of Primary Industries and Regional Development, Western Australia
Blue Swimmer Crab ( Portunus Armatus ) And Sand Crab ( Ovalipes Australiensis ) Resource In The South Coast Bioregion Of Western Australia, D Johnston, David Harris, Daniel Yeoh
Fisheries Research Reports
The blue swimmer crab (Portunus armatus) is found along the entire coastline of Western Australia (WA) in a range of estuarine, inshore and continental shelf areas (<50 >m). In the South Coast Bioregion (SCB), blue swimmer crabs are retained as by-product in commercial nets of the 25 licences operating in the South Coast Estuarine Managed Fishery (SCEMF) and targeted by purpose-designed crab traps allocated to fishers in Princess Royal and Oyster Harbours in Albany.
Blue Swimmer Crab ( Portunus Armatus ) And Mud Crab Scylla Serrata And Scylla Olivacea ) Resources In The North Coast And Gascoyne Coast Bioregions, Western Australia,
2020
Department of Primary Industries and Regional Development, Western Australia
Blue Swimmer Crab ( Portunus Armatus ) And Mud Crab Scylla Serrata And Scylla Olivacea ) Resources In The North Coast And Gascoyne Coast Bioregions, Western Australia, D Johnston, Daniel Yeoh, David Harris, E Fisher
Fisheries Research Reports
Blue swimmer crab (Portunus armatus) are found along the entire Western Australia (WA) coast, in a range of estuarine, inshore and continental shelf areas (<50 >m). In the North Coast Bioregion (NCB), commercial fishing primarily occurs as part of the Pilbara Crab Managed Fishery (PCMF) which spans the inshore waters from Onslow through to Port Hedland, with most fishing activity taking place around Nickol Bay.
West Coast Demersal Scalefish Resource Harvest Strategy 2021-2025 : Version 1.0,
2020
Department of Primary Industries and Regional Development, Western Australia
West Coast Demersal Scalefish Resource Harvest Strategy 2021-2025 : Version 1.0, Department Of Fisheries
Fisheries Management Papers
No abstract provided.
Integrated Fisheries Management Draft Allocation Report – West Coast Demersal Scalefish,
2020
Department of Primary Industries and Regional Development, Western Australia
Integrated Fisheries Management Draft Allocation Report – West Coast Demersal Scalefish, Department Of Fisheries
Fisheries Management Papers
No abstract provided.
Cultivating Cooperatives: Benefits And Challenges Of Co-Ops And Recommendations For Maine’S Emerging Aquaculture Industries,
2020
University of New England
Cultivating Cooperatives: Benefits And Challenges Of Co-Ops And Recommendations For Maine’S Emerging Aquaculture Industries, Phoebe Walsh
All Theses And Dissertations
Two emerging Maine industries, kelp (Saccharina latissimi and Saccharina angustissima) and Atlantic sea scallop (Placopecten magellanicus) aquaculture, have enormous market, environmental, and social potential but are faced with challenges of small scale and limited operations, inadequate infrastructure, market visibility, and limited expertise. Because many industries, particularly the dairy industry, have benefited from the use of cooperatives (co-ops) to aggregate an extremely perishable product, quickly process and effectively market and distribute, this research explores the cooperative model as a potential tool for the nascent scallop and kelp industries. Aquaculture co-ops are new in Maine. The first, the …
The Consequences Of Non-Native Species Invasions On The Contemporary And Historic Trophic Ecology Of Native Sport Fish In A Lake Michigan Embayment,
2020
Northern Michigan University
The Consequences Of Non-Native Species Invasions On The Contemporary And Historic Trophic Ecology Of Native Sport Fish In A Lake Michigan Embayment, John Whitinger
All NMU Master's Theses
The widespread establishment of dreissenid mussels (Dreissena spp.) in Lake Michigan has strongly altered energy flow by sequestering nutrients in nearshore benthic habitats. Despite these ecosystem changes, little is known about their influence on resource partitioning in nearshore fish communities. Here we use stable isotope analysis to characterize the contemporary fish community and historic walleye (Sander vitreus) population of Lake Michigan’s Little Bay de Noc. We found species-specific differences in the δ15N and δ13C values for 14 fish species. High degrees of niche overlap between walleye, northern pike (Esox lucius), …
Prediction Of Feed Utilization Performance In Clarias Gariepinus Using Multiple Linear Regression In Machine Learning,
2020
Ekiti-State University, Ado-Ekit, Nigeria
Prediction Of Feed Utilization Performance In Clarias Gariepinus Using Multiple Linear Regression In Machine Learning, Adekunle Oluwatosin Familusi
Journal of Bioresource Management
Machine learning models can be used to make predictions about nutrient utilization performance index using available proximate analysis data on feed composition. Data from similar experiments on nutrient utilization performance was used to fit a multiple linear regression model for the prediction of four performance indexes. The Specific Growth Rate and percentage inclusion with strength of 0.57 was noted along with a negative relationship between protein efficiency and protein content. A negative relationship between Nitrogen Free Extract (NFE) and Protein Efficiency Ratio (PER) at NFE content ≥25 % was observed. PER was predicted with 85 % accuracy, while Weight Gain …
Utah Land Management Evaluation And Assessment Network Needs Assessment,
2020
Utah State University
Utah Land Management Evaluation And Assessment Network Needs Assessment, Jordan Smith
All Current Publications
It can be difficult to make and implement land management decisions that are informed by the best available science, satisfy different stakeholders, and are compliant with established policies and regulations. Local, state, and federal entities with the capacity to influence land management decisions, can benefit from an understanding of the shared needs of landowners and managers. This needs assessment reports on the shared information, funding, and research needs expressed by land managers and owners throughout Utah who make decisions about: (1) fire prevention and suppression; (2) livestock grazing; (3) fisheries; or (4) wildlife. The report provides a high-level assessment of …
