Aquaculture and Fisheries Commons^™

Feasibility Of Custom Aquaponics For Home Use, Jesse Blanchard

Agricultural Economics and Agribusiness Undergraduate Honors Theses

The primary goal of this research is to access the feasibility of implementing and operating small scale aquaponic systems in a home setting to serve as a means of producing high quality fresh produce and fish protein to supplement similar store-bought products. Factors such as system cost, skill level and management requirements will be addressed alongside customizable, educational and sustainable aspects of aquaponic systems to determine whether home aquaponic systems are a feasible option for the home grower. To elaborate, feasibility in this research will refer to both economic costs relative to costs of the system. Outlined in this short …

Biological, Ecological And Structural Monitoring Report: Southwest Recreational Fishing Artificial Reef Trial, Geographe Bay, Western Australia, Paul D. Lewis, Mark Pagano

Fisheries Research Reports

This report details the key findings from the Biological and Ecological monitoring of the Southwest Artificial Reef Trial over the first four years after they were deployed in autumn of 2013.

The Effects Of Salinity On Zootechnical Performance Of Spotted Seatrout (Cynoscion Nebulosus) In Recirculating Aquaculture Systems, Eric Gigli

Master's Theses

The spotted seatrout (Cynoscion nebulosus) is a euryhaline finfish candidate for marine aquaculture in the northern Gulf of Mexico. Aquaculture of this species currently uses salinities of 25 psu or greater making production challenging in areas where high salinity water is not available. This study aimed to document the effects of salinity on zootechnical performance of spotted seatrout embryos, early larvae, and juveniles in recirculating aquaculture systems to assist with the development of protocols for low salinity culture.

Embryos obtained from a volitional spawn at 29 psu were incubated at three salinities (12.5, 18.75, or 25 psu) until …

The Physico-Chemical Environment And Aquatic Biodiversity Of Head Marala Wetland During 2000-2001, Zahid Bhatti, Muhammad Asif Gondal, Andleeb Batool

Journal of Bioresource Management

An ecological study on Head Marala Wetland was undertaken. The study will help in providing sound basis for the future conservation activities and its management, on sounder footing. The Marala wetlands in Bajwat area included river Jammu Tawi, river Chanab and river Manawar Tawi were studied for a period of one year, i.e. from October, 2000 to September, 2001. In this study, 36 Phytoplanktons belonging to six families were observed. The other aquatic fauna observed included 14 species of fish, 2 turtles, one leech, one prawn, one shrimp and one bullfrog. The results showed that physico-chemical parameters had an impact …

Preventing Infectious Hematopoietic Necrosis In Salmonid Fish Along The Columbia River Basin, Whitney L. Wright

OHSU-PSU School of Public Health Annual Conference

Infectious hematopoietic necrosis virus (IHNV) is a member of the Rhabdoviridae family and causes infectious hematopoietic necrosis (IHN) disease in many salmonid species during the juvenile or “fry” stage of life. IHNV is endemic to Western North America and occurs in the Columbia River Basin, where Steelhead and Chinook salmon are the most abundant IHNV-vulnerable species. IHNV can cause an epidemic in wild or farmed stocks, killing 90-95 percent of the fish it infects. Transmission is currently understood to occur by direct exposure through the gills, and the virus is shed typically from asymptomatic or clinically ill carrier adults at …

Eating Some Invasive Species Could Help To Mitigate The Impacts Of Climate Change-Related Invasions, And May Increase Future Food Security, Jesse Bull Saffeir

Independent Study Project (ISP) Collection

Climate change is predicted to increase the spread and abundance of invasive species and to erode global food security. I hypothesized that by incorporating edible invasive species into local food sheds, these two problems could help to mitigate each other. I set out to answer two questions: could eating invasive species reduce their spread and abundance? And could eating invasive species minimize the impacts of climate-change related food shocks? To answer these questions, I surveyed the existing literature on human consumption of invasive species, created a list of criteria that make an invasive species suitable for management through human consumption, …

Comments On Edgar Et Al. (2018) Paper For South-Western Australia, Daniel J. Gaughan, Nick Caputi, Brett W. Molony, Brent S. Wise, Gavin Begg, Stephen Mayfield, Michael Steer, Tim M. Ward, Adrian Linnane, Ben Stobart, Sean Sloan, Thor Saunders

Fisheries Research Articles

Edgar, Ward, and Stuart-Smith (2018) argue that Australian fishery stocks are suffering rapid declines and that to meet sustainability targets an expanded network of ‘no-fishing’ reserves is required. The three lines of evidence used were underwater visual surveys (UVSs), Australian catches, and one case study.

Summary Of The West Coast Rock Lobster Managed Fishery Science And Modelling Review, Simon De Lestang, Jason R. How, Nick Caputi, Emma-Jade Tuffley, Mark Rossbach

Fisheries Research Reports

An independent peer review of the science and modelling associated with the West Coast Rock Lobster Managed Fishery was undertaken in May/June 2018. The impetus behind this review was two-fold, i) to address industry concerns that stock assessment modelling was not reflecting what was being experienced by fishers on-water, and ii) to increase stakeholders understanding of, and confidence in, the stock assessment process while ensuring that the process was commensurate with contemporary scientific practices.

Demographic Analyses Of The Data Limited Silky Shark Population In The Indian Ocean Using A Two-Sex Stochastic Matrix Framework, Wen-Pei Tsai, Yen-Jun Wang, Atsuko Yamaguchi

Journal of Marine Science and Technology–Taiwan

The silky shark, Carcharhinus falciformis, is a common bycatch species of tuna and swordfish longline fishing in the Indian Ocean. The high value of its fins makes it one of the most heavily fished shark species in the world. Concern over declining populations and the uncertainty surrounding its population dynamics has increased the urgency of developing appropriate methods to assess its stock status. This study developed a two-sex stage-based structured matrix model with Monte Carlo simulations to examine silky shark demography and population dynamics. The simulations indicate that, without mortality from fishing, the stock will increase slightly (sex combined mean …

Analysis Of Plane Netting With Twine Breakage In Aquaculture Net Cage, Zhong-Qiang Zheng, Rong Wan, Zong-Yu Chang, Yang Zhang, Jun Tao

Journal of Marine Science and Technology–Taiwan

Offshore fish cage is one of the most important facilities for marine aquaculture farm. Existence and development of netting breakage can cause severe consequences, e.g., escape of fish, structure failure of cages, economic losses and ecological hazards. This paper presents the dynamic analysis of netting with breakage in fish cage under the influence of currents. The dynamic model of plane net with/without twine breakage is developed by using lumped mass method. The numerical integration method is employed to solve the differential equations. The effect of twine breakage on the shape of net and the tension distribution on the netting and …

Spatial And Temporal Variability In Post-Larval Yellow Perch Density, Steve Hauschildt

Biology Graduate Theses

Yellow Perch Perca flavescens are important as forage for other species and for sport fishing in many northern lakes. However, estimating post-larval Yellow Perch populations can be difficult because of many environmental factors that cause unexplained variation. The objective of this study was to help reduce unexplained variation by determining a post-larval Yellow Perch population density estimate on Blackduck Lake, MN, provide guidance to help determine the number of trawls required for trawling-based recruitment indices to achieve varying levels of precision, and test for the effects of wind speed and direction on post-larval Yellow Perch spatial variability. This study estimated …

Development Of An Industry-Based Habitat Mapping/Monitoring System Frdc Project No 2011/021, Simon De Lestang, Matthew B. Pember, Dirk Slawinski

Fisheries Research Reports

Mapping / monitoring in the marine environment can be a very costly exercise. Scientists from the Department of Primary Industries and Regional Development; Fisheries Division (FD) and the Commonwealth Scientific and Industrial Research Organisation (CSIRO) have developed a small, low-cost automated camera system that, when fitted to commercial fishing gear, can achieve this at minimal cost. The POTBot (Pictures Of The Bottom) system is a cheap, small “smart” camera that can track its position globally and the date and time, and can record high-definition video and water temperature readings when it determines it has been deployed into the ocean.

Challenges In Columbia River Fisheries Conservation: A Response To Duda Et Al., Brian K. Hand, Courtney G. Flint, Chris A. Frissell, Clint C. Muhlfeld, Shawn P. Devlin, Brian P. Kennedy, Robert L. Crabtree, W. Arthur Mckee, Gordon Luikart, Jack A. Stanford

Sociology, Social Work and Anthropology Faculty Publications

The salmonid fisheries of the Columbia River Basin (CRB) have enormous socioeconomic, cultural, and ecological importance to numerous diverse stakeholders (eg state, federal, tribal, nonprofit), and there are a wide array of opinions and perspectives on how these fisheries should be managed. Although we appreciate Duda et al.'s commentary, it offers only one perspective of many in this context. The objective of our paper (Hand et al. 2018) was to provide justification for “the importance of social–ecological perspectives when communicating conservation values and goals, and the role of independent science in guiding management policy and practice for …

Effects Of Dietary Protein Content On Hybrid Tilapia (Oreochromis Aureus × O. Niloticus) Performance, Common Microbial Off-Flavor Compounds, And Water Quality Dynamics In An Outdoor Biofloc Technology Production System, Bartholomew W. Green, Steven D. Rawles, Kevin K. Schrader, T. Gibson Gaylord, Matthew E. Mcentire

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Given tilapia grown in the biofloc technology production system can consume the biofloc, it should be possible to optimize formulated diet protein content to account for nutrition derived from consuming biofloc. The present study, conducted in an outdoor biofloc technology production system, evaluated impacts on fish production indices, common microbial off-flavors, and water quality dynamics for hybrid tilapia (Oreochromis aureus×O. niloticus) fed diets formulated to contain 22.5%, 27.7%, and 32.3% digestible protein (DP) and 6% lipid. Fingerlings (32.2 ± 10.1 g/fish) were stocked in tanks (18.6m2; 16.6m3) in May 2016 at 25/m2 (29/m3) and grown for 5 months to market …

Biotechnological Application In Aquaculture And Its Sustainability Constraints, Olaganathan Rajee, Tang Kar Mun Alicia

Publications

The valuable nutritional and biochemical properties have made fisheries products one of the most vital high-quality protein sources for human consumption. Aquaculture has become the great alternative to substitute wild catches when the yield from fishing are no longer sufficient to sustain the massive food demand of the human population which is constantly burgeoning. However, aquaculture requires multidisciplinary approaches with holistic and environmental-friendly management measures to ensure its long term success and sustainability. Biotechnological applications have enhanced the effectiveness and cost-efficiencies of aquaculture by augmenting the productivity of aquaculture to meet global needs. Despite the benefits, the biotechnological application in …

Pyganodon Grandis Growth Along A Trophic State Gradient In Eastern South Dakota Lakes, Katherine M. Wollman, Nels H. Troelstrup Jr.

Oak Lake Field Station 30th Anniversary Retreat Presentations

No abstract provided.

Landscapes, Water Quality And Aquatic Assemblages, Nels H. Troelstrup Jr.

Oak Lake Field Station 30th Anniversary Retreat Presentations

No abstract provided.

Description And Histology Of A Small-Bodied Elasmosaur And Discription Of Mortuneria Seyemourensis Postcranium, Elizabeth Lester

Theses, Dissertations and Capstones

Elasmosauridae is a monophyletic group of plesiosaurs that evolved in the Early Cretaceous and radiated to achieve a cosmopolitan distribution by the end of the Cretaceous. They were a highly successful group of deep sea predators with long necks, small heads, and stout four flippered bodies. Here we describe four postcranial elasmosaurs skeletons that were collected from the shallow marine Lopez de Bertodano formation located on Seymour Island of the Antarctic Peninsula. One specimen is a small-bodied elasmosaurs. Despite its small size it has several advanced ontogenetic character states including the fusion of neural spines to the vertebral centra. The …

Long-Term Effects Of Elevated Manganese On Procambarus Clarkii Behavior, Cody W. Lambert

Theses, Dissertations and Capstones

Manganese is a prominent heavy metal within the earth’s crust and a micro mineral essential for biological function, however, high level exposure may lead to neurological defects. Industrial activities allow elevated manganese (Mn²⁺)to enter air and waterways. The Environmental Protection Agency (EPA) implements secondary standards for aesthetics in drinking water at 0.05 ppm Mn2+, although evidence indicates levels at, or below this concentration negatively impact aquatic life. Crayfish (Procambarus clarkii) were exposed to environmentally relevant Mn²⁺ concentrations for 6 months, while the control group was kept in reconstituted fresh water for the same time period. …

Nutritional Condition And Physiological Stress Levels Of Elk In The Black Hills, South Dakota, Chadwick P. Lehman, Christopher T. Rota, Joshua J. Millspaugh

Faculty & Staff Scholarship

Percent of body fat and physiological stress are important correlates to wildlife demographics. We studied winter percent of body fat and physiological stress levels for a declining elk (Cervus canadensis nelsoni) population in South Dakota, 2011–2013. We obtained percent of winter body fat, pregnancy status, lactation status, and physiological stress data from 58 adult females (2+ years old). We compared physiological stress level data from 2011 with data collected from this same herd when elk densities were much higher (1995–1997). Our objectives were to determine percent of body fat during winter, examine if winter body fat was correlated with pregnancy …

Tiger Sharks Eat Songbirds: Reply, J. Marcus Drymon, K. Feldheim, A. M.V. Fournier, A. E. Jefferson, A. M. Kroetz, Sean P. Powers, E. A. Seubert

University Faculty and Staff Publications

In response to our recent paper (Drymon et al. 2019), Yosef (2019) questions the mechanism proposed to explain interactions between tiger sharks (Galeocerdo cuvier) and migratory songbirds, while offering an alternative mechanism based on a single observation. We appreciate the comments from Yosef and the opportunity to respond.

Tiger Sharks Eat Songbirds: Scavenging A Windfall Of Nutrients From The Sky, J. Marcus Drymon, K. Feldheim, A. M.V. Fournier, E. A. Seubert, A. E. Jefferson, A. M. Kroetz, Sean P. Powers

University Faculty and Staff Publications

No abstract provided.

Status Reports Of The Fisheries And Aquatic Resources Of Western Australia 2017/18. State Of The Fisheries, Daniel J. Gaughan, Brett Molony, K. Santoro

Status Reports of the Fisheries and Aquatic Resources

The Status Reports of the Fisheries and Aquatic Resources of Western Australia (SRFAR) provide an annual update on the state of the fish stocks and other aquatic resources of Western Australia (WA). These reports outline the most recent assessments of the cumulative risk status for each of the aquatic resources (assets) within WA’s six Bioregions using an Ecosystem Based Fisheries Management (EBFM) approach.

Effects Of Rainbow Trout On Brook Trout Population Size In Tributaries To Lake Superior In Cook County, Minnesota, Craig Tangren

Journal of Earth and Life Science

This study looked at the effects of Rainbow Trout stocking on the size of Brook Trout populations above migratory barriers. Linear mixed effects models were used to determine if there was a relationship between Brook Trout and Rainbow Trout catch rates. Age 1 or older Brook Trout populations were influenced by relative abundance of age 1 or older Rainbow Trout, according to the best supported model based on AIC scores. Population responses varied by stream, ranging along a gradient from high catch rates with a positive relationship to a negative relationship with low relative abundances. Streams with a positive relationship …

Estimating The Use Of Public Lands: Integrated Modeling Of Open Populations With Convolution Likelihood Ecological Abundance Regression, Lutz F. Gruber, Erica F. Stuber, Joseph J. Fontaine

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

We present an integrated open population model where the population dynamics are defined by a differential equation, and the related statistical model utilizes a Poisson binomial convolution likelihood. Key advantages of the proposed approach over existing open population models include the flexibility to predict related, but unobserved quantities such as total immigration or emigration over a specified time period, and more computationally efficient posterior simulation by elimination of the need to explicitly simulate latent immigration and emigration. The viability of the proposed method is shown in an in-depth analysis of outdoor recreation participation on public lands, where the surveyed populations …

The Future Of Recreational Fisheries: Advances In Science, Monitoring, Management, And Practice, Jacob W. Brownscombe, Kieran Hyder, Warren Potts, Kyle L. Wilson, Kevin L. Pope, Andy J. Danylchuk, Steven J. Cooke, Adrian Clarke, Robert Arlinghaus, John R. Post

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Recreational fisheries (RF) are complex social-ecological systems that play an important role in aquatic environments while generating significant social and economic benefits around the world. The nature of RF is diverse and rapidly evolving, including the participants, their priorities and behaviors, and the related ecological impacts and social and economic benefits. RF can lead to negative ecological impacts, particularly through overexploitation of fish populations and spread of non-native species and genotypes through stocking. Hence, careful management and monitoring of RF is essential to sustain these ecologically and socioeconomically important resources. This special issue on recreational fisheries contains diverse research, syntheses, …

Shrimp Production Environment And The Gut Microbiome: Effects Of Aquaculture Practices And Selective Breeding On The Gut Microbiome Of Pacific Whiteleg Shrimp, Litopenaeus Vannamei, Angela Landsman

Electronic Theses and Dissertations

Knowledge of the functional role of the gut microbiome in animal health and nutrition may provide solutions to shrimp aquaculture challenges, such as improving disease resistance and optimizing growth particularly with low cost feeds. Successful manipulation of bacteria found in the gut requires a deeper understanding of shrimp microbial communities and how their compositional structure is influenced by environmental conditions, and inherent host factors such as genetics. The initial research investigated the intestinal bacterial communities of the Pacific whiteleg shrimp (Litopenaeus vannamei) reared in pond systems compared to indoor aquaculture facilities as an exploration of the effects of aquaculture practices …

Effect Of Water Velocity And Temperature On Energy Use, Behavior, And Mortality Of Pallid Sturgeon Scaphirhynchus Albus Larvae, Joseph Thomas Mrnak

Electronic Theses and Dissertations

Pallid Sturgeon Scaphirhynchus albus are a federally endangered species endemic to the Missouri River basin. Natural reproduction has been limited for decades and a recruitment bottleneck is hypothesized to occur during the larval stage of development. Understanding factors that affect survival of Pallid Sturgeon larvae is key given their critical status and ongoing recovery efforts. In this study, I evaluated the effects of water velocity and temperature on energy use, behavior, and mortality of endogenously feeding Pallid Sturgeon larvae (< 25 mm TL). In the first experiment, I examined the effect of water velocity (0 – 8.3 cm s⁻¹) on larval growth, energy density, swimming activity, and mortality. Larval growth rate at 16.3 °C was similar across …

Bait Guidelines For Commercial Fisheries In Western Australia, Department Of Primary Industries And Regional Development, Western Australia

Fisheries Occasional Publications

No abstract provided.

Bomb Radiocarbon Age Validation For The Long-Lived, Unexploited Arctic Fish Species Coregonus Clupeaformis, John M. Casselman, Cynthia M. Jones, Steven E. Campana

OES Faculty Publications

The growth rates of freshwater fish in the Arctic would be expected to be very low, but some previous studies of lake whitefish (Coregonus clupeaformis) have reported relatively rapid growth and longevity estimates of less than 15 years. We used bomb radiocarbon chronologies to validate an ageing method based on otolith sections for lake whitefish in both an unexploited Arctic lake (MacAlpine Lake; longevity 50 years) and a lightly exploited temperate population (Lake Simcoe; longevity 49 years). Our results confirm previous suggestions that other ageing methods can seriously underestimate lake whitefish age after ~5–8 years. A Chapman–Robson estimate …