Animal Sciences Commons^™

Investigation Of The Pangas (Pangasianodon Hypophthalmus) Cultivation Sustainability In Cages At The Ratargul Freshwater Swamp Forest Of Bangladesh, Mrityunjoy Kunda, Md. Abu Kawsar, Diponkor Adikari, Sakib Tahmid Rishan, Ahmed Harun-Al-Rashid, Debasish Pandit

School of Integrative Biological & Chemical Sciences Faculty Publications

Determining the most appropriate stocking density for a specific fish species in an ambient condition is essential for successful cage aquaculture in terms of profitability which is mainly governed by growth. The current study was conducted to ascertain which stocking density gives the best result of widely cultured species in cage aquaculture, pangas (Pangasianodon hypophthalmus), at swamp forest environment of Ratargul Freshwater Swamp Forest, Bangladesh in terms of growth, production and economic return. Fish were reared for 93 days at three stocking densities, namely 30, 40 and 50 fish/m3 which were denoted as FSD30, FSD40 and FSD50, respectively, …

Twenty-Three Years Of Pcr-Based Seafood Authentication Assay Development: What Have We Learned?, Maleeka Singh, Robert G. Young, Rosalee S. Hellberg, Robert H. Hanner, Maria G. Corradini, Jeffrey M. Garber

Food Science Faculty Articles and Research

Seafood is a prime target for fraudulent activities due to the complexity of its supply chain, high demand, and difficult discrimination among species once morphological characteristics are removed. Instances of seafood fraud are expected to increase due to growing demand. This manuscript reviews the application of DNA-based methods for commercial fish authentication and identification from 2000 to 2023. It explores (1) the most common types of commercial fish used in assay development, (2) the type of method used, (3) the gene region most often targeted, (4) provides a case study of currently published assays or primer-probe pairs used for DNA …

Estimation Of Effective Number Of Breeders And Effective Population Size In An Abundant And Heavily Exploited Marine Teleost, Andrea Bertram, Justin Bell, Chris Brauer, David Fairclough, Paul Hamer, Jonathan Sandoval-Castillo, Maren Wellenreuther, Luciano B. Beheregaray

Fisheries Research Articles

Obtaining reliable estimates of the effective number of breeders (Nb) and generational effective population size (Ne) for fishery-important species is challenging because they are often iteroparous and highly abundant, which can lead to bias and imprecision. However, recent advances in understanding of these parameters, as well as the development of bias correction methods, have improved the capacity to generate reliable estimates. We utilized samples of both single-cohort young of the year and mixed-age adults from two geographically and genetically isolated stocks of the Australasian snapper (Chrysophrys auratus) to investigate the feasibility of generating reliable Nb and Ne estimates for a …

Conservation Genomic Investigation Of A Threatened Trout Species Endemic To The Gila River, David Thomas Camak

Biology ETDs

Climate change is a looming threat to the persistence of species, especially aquatic, imperiled species. Species native to desert streams are at a particular disadvantage, as many species already face drought, floods, wildfires, and threats from nonnative species, all of which are thought to be exacerbated by climate change. Species such as the threatened Gila Trout (Oncorhynchus gilae) already have small ranges and persist in fragmented and isolated habitats that limits gene flow between populations. Therefore, it is important to understand the current genomic status of such populations to be able to predict the future effects of climate …

Population Demography, Occupancy, And Connectivity Of Invasive Bigheaded Carp In The Platte River, Nebraska And Its Tributaries, Blake W. Logan

School of Natural Resources: Dissertations, Theses, and Student Research

Silver Carp Hypophthalmichthys molitrix and Bighead Carp H. nobilis, collectively referred to as bigheaded carp, are invasive species in the United States of America that have expanded their range throughout the Missouri River basin in the last three decades. It may be desirable to develop management plans directed at the monitoring, control, or removal of bigheaded carp within the Missouri River basin. However, a knowledge gap exists regarding bigheaded carp ecology in Missouri River tributaries, which may be important for the development of management plans. As such, this study characterized bigheaded carp population demographics, occupancy, and connectivity in …

Modeling Pelagic Feeding In The Gulf Of Mexico With Implications For Ecosystem-Based Fisheries Management, Rebecca L. Scott

USF Tampa Graduate Theses and Dissertations

The focus of this dissertation was simulating trophic dynamics in the pelagic Gulf of Mexico (GOM) with an emphasis on ecosystem-based fishery management (EBFM) strategies for large pelagic species. Fisheries management in the United States largely utilizes single-species assessments, although managers are increasingly interested in EBFM approaches to better account for ecosystem effects on stocks such as predator/prey dynamics. Production in the surface layer of the pelagic zone is variable with environmental conditions and prey is often concentrated in patches by hydrodynamic features. Production is also transported vertically via diel vertical migration, during which deep-sea species provide potentially key forage …

Fisheries Occasional Publication No.147 - Aquaculture Development Zones – Policy Position Relating To Permitted Alternative Species, Department Of Primary Industries And Regional Development, Western Australia

Fisheries Occasional Publications

The purpose of this policy is to set out considerations relevant to the assessment of aquaculture proposals within Aquaculture Development Zones (ADZ) for species distinct from the group of species for which the ADZ was initially established (Alternative Species).

Simulated Transport Of Silver Therapon (Leiopotherapon Plumbeus) Fingerlings At Different Durations And Loading Densities: Effects On Survival And Water Quality, Frolan A. Aya, Reylan C. Gutierrez, Luis Maria Garcia

The Philippine Agricultural Scientist

The silver therapon, Leiopotherapon plumbeus, is a new species for aquaculture. However, information on the optimal conditions for the transport of this species for grow-out culture needs to be established to avoid stress and unnecessary mortalities. This study examined the effects of duration of transport and loading density on survival and water quality during simulated transport of silver therapon. Hatchery-produced fingerlings [1.30 ± 0.34 g body weight (BW); 44.30 ± 3.77 mm total length (TL)] were held in double-layered oxygenated plastic bags at three transport durations (6 h, 9 h, and 12 h) and densities (40, 80, and 120 …

A Potential Of Watercress Nasturtium Officinale Bioactive Compounds In Inhibiting Infectious Myonecrosis Virus (Imnv) By Targeting Rna-Dependent Rna Polymerase (Rdrp) Virus From Several Countries: In Silico Approach, Qurrota A’Yunin, Fatchiyah Fatchiyah, Maftuch Maftuch, Feri Eko Hermanto, Muhammad Hermawan Widyananda, Narendra Santika Hartana, Muhaimin Rifa’I, Yoga Dwi Jatmiko

Karbala International Journal of Modern Science

Infectious myonecrosis virus (IMNV) disease causes mass mortality and decreased shrimp production. The RdRp region projects to the interior, where it may function in transcription. The focus of this study was to determine the effect of amino acid polymorphisms from several countries on the structure of RdRp and identify the potential of watercress in inhibiting IMNV by targeting the RdRp protein of IMNV through an in silico approach. The results showed that the structure of the IMNV RdRp protein from Indonesia was similar to Mexico, and the protein structure from India_QDN was identical to India_QIL. Ligand binding affinity values showed …

A Model Of Oocyte Population Dynamics For Fish Oogenesis, Louis Fostier, Frédérique Clément, Romain Yvinec, Violette Thermes

Biology and Medicine Through Mathematics Conference

No abstract provided.

Impacts Of Hematodinium Infection In A Seasonal Population Model Of The Chesapeake Bay Blue Crab, Gwendolyn R. Sargent, Romuald Lipcius, Leah Shaw, Junping Shi, Jeffrey D. Shields

Biology and Medicine Through Mathematics Conference

No abstract provided.

Maturation Of An Off-Channel Habitat Concept To Conserve Native Fishes In The Lower Colorado River, Paul C. Marsh, Thomas E. Dowling, Thomas F. Turner, Megan J. Osborne, Brian R. Kesner

Monographs of the Western North American Naturalist

Two endemic, “large river” fishes of the Colorado River basin of western North America, bonytail Gila elegans and razorback sucker Xyrauchen texanus, are among several critically endangered species in the system. Wild populations of bonytail are gone, and there are no self-sustaining populations of razorback sucker anywhere; reproduction occurs but recruitment does not. Both species have been under intensive management in the Lower Colorado River since the 1980s. Today, with the single exception of Lake Mead, remaining populations are composed entirely of repatriated individuals that depend on stocking for their continued existence. In 2003, a conceptual off-channel habitat (OCH) …

Closing The Gap: Methodological Consideration In Predicting Suitable Habitat For Ouachita Fanshell (Cyprogenia Sp Cf Aberti) With Documentation Of Mussel Communities In Small Tributaries In The Ouachita River Watershed, Seth Drake

ATU Theses and Dissertations 2021 - Present

Freshwater mussels are one of the most imperiled taxonomic groups in the world, consequently, much effort is being expended to document the distribution of many mussel species. One tool that can aid in characterizing mussel distributions are species distribution models (SDM). I conducted two studies pertaining to freshwater mussel distributions: (1) utilize Maximum Entropy (MAXENT) modeling to predict potential areas of suitable habitat for the threatened Ouachita Fanshell (Cyprogenia sp cf aberti), and (2) survey small tributaries of the Ouachita River watershed to fill a portion of the information gap surrounding mussel communities in under-surveyed streams. Through changing …

Ancient Wisdom, Modern Prosperity: Harnessing Traditional Ecological Knowledge To Revitalize Australia's Economy, Environment, And Human Wellbeing, Annabelle L. Baulch

Student Theses 2015-Present

This paper explores the traditional knowledge of Australia’s Indigenous people and how it can improve Australia's environment, health, and economic prosperity to shape a more sustainable future. Indigenous Australians managed the land for thousands of years; however, being forced off the land following European colonization resulted in terrible cultural, social, and environmental disruption for Aboriginal Australians and made conservation efforts difficult. Wildfires, imported species, mining, and agriculture is steadily destroying the Australian ecosystem, contributing to climate change, species extinction, and gaps in our cultural and ancestral knowledge. Chapter One overviews Australia's environmental issues; it uses quantitative data to explore the …

New York City’S Rising Sea Level And Coastal Erosion: Approaches To Resiliency, Ryder D. Isidro

Student Theses 2015-Present

No abstract provided.

West Coast Rock Lobster Resource Harvest Strategy, Department Of Primary Industries And Regional Development, Western Australia

Fisheries Management Papers

Harvest strategies for Western Australia’s (WA) aquatic resources are formal documents developed by the Department of Primary Industries and Regional Development (DPIRD, the Department) to support decision-making processes that ensure the outcomes are consistent with the principles of Ecologically Sustainable Development (ESD; Fletcher 2002a) and Ecosystem Based Fisheries Management (EBFM; Fletcher et al. 2012). Harvest strategies are a key component of all contemporary fishery management systems and a requirement for certification under the Marine Stewardship Council (MSC). The objectives of ESD are reflected in the objectives of the Fish Resources Management Act 1994 (FRMA) and the Aquatic Resources Management Act …

Phenotypic Plasticity In Pigmentation: Investigating Coloration Patterns In Anablepsoides Hartii Population Responses To Environmental Variation, Jasdeep Kaur

2024 Spring Honors Capstone Projects - Archive

In this study, we investigated the color-changing capabilities of Trinidadian killifish, Anablepsoides hartii, through exposure to varied color conditions over defined periods of time. Our experiment aims to understand adaptive responses when killifish are subjected to different color backgrounds, exploring their mechanisms to change color. By subjecting the species to different environmental color variations, we sought to discern color change patterns, which could indicate adaptive responses related to camouflage, stress, behavior clues, and physiological adjustments. Carefully controlling environmental factors, we monitored and documented the fishes’ color changes, aiming to provide insights into the interplay between fish’s developmental plasticity and its …

Response Of Fish Assemblages To Increased Connectivity And Habitat Restoration In Bayou St. John, A Degraded Waterway In New Orleans, La, Alia Jones

LSU New Orleans Theses and Dissertations

Bayou St. John is a degraded waterway located within the City of New Orleans. The Bayou, which is disconnected from Lake Pontchartrain by floodgates, has undergone restoration efforts to improve connectivity through frequent floodgate openings and marsh habitat restoration outside of the floodgates. To assess possible responses of local fish assemblages to these restoration efforts, I analyzed long-term fish assemblage data from three sites located inside of the floodgates and one site located at the restored marsh outside of the floodgates. Two sites inside of the floodgates experienced significant changes in assemblages between the pre-opening period (2006-2012) and post-opening period …

Investigating The Demise Of East Bank Ridge Through Local Fishery Perceptions And Fish Population Metrics, Marissa R. Lamb

Theses and Dissertations

East Bank Ridge is a natural reef formation located 18 nautical miles off the coast of South Padre Island, covering an area of over 80 km2, with the southern portion extending into Mexico. There is no previous record of the structural composition or fish community present at the site. The ridge was a well-known fishing site in the local community over the past decades but catch rates have decreased substantially according to personal accounts from local anglers. In this study, areas of reef habitat were identified, and fish presence and abundance metrics were determined at East Bank Ridge. These measures …

An Examination Of The Eastern Nebraska And Western Iowa Flash Flood Event Of 6-7 August 1999, Catherine M. Zapotocny

National Oceanographic and Atmospheric Administration: Technical Reports and Related Materials

Flash flooding occurs each summer in eastern Nebraska and western Iowa. While 10-inch rains are extraordinary, it is not uncommon to have at least one excessive rain event during the annual convective season. A significant flash flood occurred in east central Nebraska and western Iowa the night of August 6, 1999 into the morning of August 7, 1999. Antecedent hydrologic conditions limited the loss of life, however considerable property damage resulted as the heavy rain fell over the urbanized areas in eastern Nebraska and western Iowa.

Several flash flood ingredients came together over the area. These meteorological factors are typical …

Trophic Ecology Of Black Swallowers (Scombriformes: Chiasmodontidae: Chiasmodon) In The Deep-Pelagic Gulf Of Mexico, Travis J. Kirk

All HCAS Student Capstones, Theses, and Dissertations

The ecology of deep-pelagic predatory fishes remains poorly understood despite their importance as ecosystem regulators and energy transfer vectors. This study investigated the trophic ecology of three species of the predatory fish genus Chiasmodon (“black swallowers”) in the Gulf of Mexico, a region that serves as an analog for the global low-latitude deep pelagial, the world’s largest cumulative ecosystem. Foraging habits (e.g., selectivity, chronology, daily ration) of an “advanced” evolutionary fish in a system that is otherwise dominated by basal fish taxa, were quantitatively estimated via high-resolution stomach content analysis. A quantitative dataset of both predator and prey abundance, the …

Spatial Assessment Of Slender Madtom (Noturus Exilis) Diets Within The Illinois Bayou, Brendon K. Mitchell

ATU Scholars Symposium

The Slender Madtom (Noturus exilis) is a common species with a widespread distribution across the Mississippi River basin. In Arkansas, they can be found in upland rivers/streams in the Arkansas River and White River watershed. Very little data has been collected on the diet of this species and how it varies. We wanted to spatially assess the diet of Slender Madtoms. Slender Madtoms were sampled from 8 sites in the Illinois Bayou watershed using seines and kick nets. Small-scale gastric lavage was used to extract diet data from all individuals. All prey items were preserved and identified to the genus …

Microhabitat Use Of The Highland Darter (Etheostoma Teddyroosevelt) In The Illinois Bayou Watershed Of Arkansas, Colton W. Morris

ATU Scholars Symposium

Highland Darters (Etheostoma teddyroosevelt) are an Ozark regional endemic species, occurring in the Arkansas River and upper White River systems of Arkansas, Kansas, Oklahoma, and Missouri. There have been very few studies on this species, specifically those that have quantified the habitat use of this species across its range. A new study was needed to fill in the knowledge gap of microhabitat use by the Highland Darter in Arkansas. We wanted to address this knowledge gap by assessing the microhabitat use of this species in the Illinois Bayou watershed in Arkansas. Highland Darters were observed during snorkel surveys at known …

Mussel Communities Of Two Impacted Tributaries In The Arkansas South Central Plains Ecoregion, Jimmy Hall, Seth Drake, Parker Brannon, Savannah Wise

ATU Scholars Symposium

Anthropogenic influences such as mining and water quality degradation from wastewater effluents and agricultural runoff heavily impact freshwater mussel communities. The South-Central Plains (SCP) Ecoregion in Arkansas contains the Smackover Formation, an area that has been exploited for its oil with high frequency of drilling. In 1922 the Smackover pool in Union County was found and quickly became one of the world's most productive oil sites. Hurricane Creek and Smackover Creek, two tributaries within the Ouachita River basin, have experienced negative impacts from oil exploration and mining. However, to our knowledge, mussel communities in these creeks have not been assessed …

Habitat Suitability For Age-0 Lake Sturgeon In The Grand River, Benjamin D. Gunnett

Masters Theses

Lake sturgeon (Acipenser fulvescens) are a state-threatened species in Michigan and have become a focus for conservation. The lower Grand River is home to a remnant population of lake sturgeon between the 6th Street dam in downtown Grand Rapids and Lake Michigan. There has been limited research on age-0 lake sturgeon habitat use in low-gradient and more turbid rivers. To address this deficit, we developed a Habitat Suitability Index (HSI) for age-0 lake sturgeon based on prior literature in the Great Lakes. A HSI combines parameters representing in-stream habitat characteristics to score habitat suitability on a scale of 0-1, 0 …

Genomic Population Structure Of Great Hammerhead Sharks (Sphyrna Mokarran) Across The Indo-Pacific, Naomi L. Brunjes, Samuel M. Williams, Alexis L. Levengood, Matt K. Broadhurst, Vincent Raoult, Alastair V. Harry, Matias Braccini, Madeline E. Green, Julia L. Y. Spaet, Michael J. Travers, Bonnie J. Holmes

Fisheries Research Articles

Context

Currently, little information exists describing the population structure of great hammerhead sharks (Sphyrna mokarran) in Australian waters. Aims

This study used single nucleotide polymorphisms to investigate fine-scale population structure in S. mokarran across the Indo-Pacific. Methods

DNA was extracted from 235 individuals across six Australian locations and a Red Sea outgroup. Population parameters were calculated and visualised to test structuring across locations. Key results

No fine-scale population structuring was observed for S. mokarran across the Indo-Pacific. However, population structuring occurred for all Australian locations when compared to the Red Sea outgroup. Conclusions

Findings suggest a single stock …

The Social And Economic Dimensions Of One Of The World’S Longest-Operating Shark Fisheries, Matias Braccini, Maddison Watt, Clinton Syers, Nick Blay, Matthew Navarro, Michael Burton

Fisheries Research Articles

Context

Social and economic information is limited for coastal commercial and recreational fisheries, particularly shark fisheries, which are perceived as unsustainable and as targeting sharks for fins.

Aims

To characterise the social and economic dimensions of one of the world’s few long-standing sustainable shark fisheries.

Methods

We reviewed historic data and surveyed stakeholders to understand the economic and social dimensions of the shark fishery currently operating in Western Australia.

Key results

Since the fishery’s historic peak, there has been a substantial reduction in the number of operating vessels and ports due to management intervention. For the vessels that have remained, …

“It’S A No Brainer”: Ensuring Just Transitions In Iceland’S Fishing Industry, Olivia Bowers

Independent Study Project (ISP) Collection

Iceland’s government intends to achieve carbon neutrality by 2040, aiming to target various economic sectors and industries for increased renewable-energy usage. One of its most important plans revolves renewable-energy usage in the fishing industry, which accounts for almost 12% of the country’s GHG emissions. This study aims to understand the perspectives of different stakeholders concerning renewable energy in the fishing industry, using these opinions and existing literature to provide recommendations for a just, equitable, and achievable energy transition. Additionally, this study particularly focuses on the opinions of actors in Vestmannaeyjar, an island community of 4,300 with an especially vibrant, significant, …

A Deeper Dive Into Literature Published About Pinnipeds And Cetaceans Using The Five Domain Model, Aqsa Khan, Pedro Beltran

Posters - 2024

Research was conducted on cetaceans (whales and dolphins) (Figure 1) and pinnipeds (seals and sea lions) (Figure 2), focusing on five domains: nutrition, environment, health, behavior, and mental state. The goal was to identify the most discussed domain in existing literature. Specifically examining researchers' opinions on assessing the well-being of these marine mammals. After analyzing articles, hypotheses were formed suggesting that environmental factors are prominent for cetaceans, while behavior is the prominent domain for pinnipeds. To test these hypotheses, peer-reviewed articles were coded, providing both qualitative insights and quantitative representations of each domain's prevalence. The research uncovered the focal domains …

Time Series Modeling To Ascertain Age In Fisheries Management, Kathleen Sue Kirch

OES Theses and Dissertations

The ability to assign accurate ages of fish is important to fisheries management. Accurate ageing allows for the most reliable age-based models to be used to support sustainability and maximize economic benefit. Structures used to age include bones, scales, and most commonly ear bones (otoliths). Assigning age relies on validating putative annual marks by evaluating accretional material laid down in patterns in fish otoliths, typically by marginal increment analysis. These patterns often take the shape of a sawtooth wave with an abrupt drop in accretion yearly to form an annual band and are typically validated qualitatively. Researchers have shown keen …