Aquaculture and Fisheries Commons^™

State Of The Fisheries: Status Reports And Aquatic Resources Of Western Australia 2021/22, Department Of Primary Industries And Regional Development, Western Australia, S J. Newman, B S. Wise, K G. Santaro, D J. Gaughan

Status Reports of the Fisheries and Aquatic Resources

Aquatic resources within Western Australia (WA) are in good condition, and this has positioned WA as a global leader in sustainable fisheries management. The sustainable fisheries of WA continue to support our strong economy and regional communities. Nonetheless, the lack of a consistent approach to build in the knowledge of Traditional Owners remains a gap in our longer-term fisheries science in Western Australia.

Climate change and climate variability continues to impact fish stocks, challenging our ability to effectively monitor, assess, and manage fish stocks. We are continually working with our stakeholders, and the broader community to be adaptive, responsive, and …

Development Of A 16s Reference Library For Edna Metabarcoding The Freshwater Fishes Of Western Ecuador., Hannah M. Willis, Olivia G. Schweikart, Windsor E. Aguirre

DePaul Discoveries

This project examines the use of the 16S locus to amplify neotropical freshwater fishes native to Western Ecuador in a newly created 16S reference library for DNA barcoding and eDNA metabarcoding applications. Among the orders Characiformes, Siluriformes, Cichliformes, Gobiiformes, Cryprinodontiformes, Gymnotiformes, and Perciformes, a compendium of 105 specimens were sequenced, with 43 representing new 16S sequences previously unavailable on Genbank.

Biochemical Markers Of Liver Toxicity Among Coal Mine Workers Of Punjab, Pakistan Suffering From Hcv, Aima Iram Batool, Asma Noreen, Naima Huma Naveed, Iram Inayat, Muhammad Fayyaz Ur Rehman, Fariha Idrees, Muhammad Ali Kanwal, Syeda Humaira Jabeen, Hakim Bibi

Journal of Bioresource Management

Hepatitis C is among the leading hepatic disorders in current period through which about 3 % world population has been anguish among them 170 million were diagnosed as persistent carriers. A great range of alteration in liver biochemical parameters were found to be allied with HCV infestation. Current study was designed to evaluate the extent of HCV mediated abnormalities in liver biochemical markers which includes ALT (alanine aminotransferase), AST (Aspartate transaminase), ALP (Alkaline Phosphatase) and serum bilirubin. The study was conducted on coal miners of Punjab province, Pakistan. HCV was primarily diagnosed through one step rapid test device after which …

Microbiological Safety And Quality Of Ceviche, Poke, And Sushi Dishes Sold At Retail Outlets In Orange County, Ca, Grace E. Marquis, Samantha M. Covaia, Amanda M. Tabb, Courtney J. Kitch, Rosalee S. Hellberg

Food Science Faculty Articles and Research

Raw, ready-to-eat (RTE) seafood products, such as ceviche, poke, and sushi, have experienced growing demand globally; however, these products have the potential to be contaminated with foodborne pathogens. The objective of this study was to determine the prevalence of Escherichiacoli/coliforms, Salmonella, and Listeria in ceviche, poke, and sushi dishes sold at the retail level in Orange County, CA, USA. Additional organisms detected during testing were also considered in the results. A total of 105 raw, RTE samples of ceviche, poke, and sushi were collected from restaurants and grocery stores in Orange County, CA. Samples were tested for Salmonella …

Spatial And Temporal Activity Patterns Among Sympatric Tree-Roosting Bat Species In An Agriculturally Dominated Great Plains Landscape, Christopher Fill, Craig R. Allen, John F. Benson, Dirac Twidwell

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

In agroecosystems, bats can provide a critical ecosystem service by consuming night-flying insect pests. However, many bats also face intense population pressures from human landscape modification, global change and novel diseases. To better understand the behavioral activity of different bat species with respect to space, time, habitat, and other bat species in this environment, we investigated species correlations in space and time over row crop agricultural fields. We used acoustic grids to document spatial and temporal co-occurrence or avoidance between bats and recorded eight species across the 10 field sites we sampled. All species significantly overlapped in two-dimensional space and …

An Exploration Of Palauan Fishing Methods And Fisheries: A Study For The Conservation Of Dugongs, Mia Glover

Electronic Theses and Dissertations

The dugong (Dugong dugon) is an important marine mammal in Palau. However, current population dynamics are not well understood. This study aimed to connect scientific data with local knowledge by examining the social implications of changing fishing methods and their impact on dugong population dynamics in the face of climate change and fisheries commercialization. Through interviews with local fishers, it was found that destructive fishing methods like trawling and long lining have led to habitat loss and degradation for dugongs. These tactics, driven by economic factors, have disrupted the delicate balance between human activities and the preservation of dugong habitats, …

Reproduction, Early Development, And Larval Rearing Of The Climbing Perch Anabas Testudineus (Teleostei: Anabantidae) In Captivity, Frolan A. Aya, Reylan C. Gutierrez, Luis Maria B. Garcia

The Philippine Agricultural Scientist

Induced spawning, early development, and larval rearing of the climbing perch Anabas testudineus were examined under captive conditions. Five female climbing perch [125.33 ± 3.27 mm SL; 70.67 ± 5.59 g BW] were paired with apparently mature males (108.50 ± 3.97 mm SL; 39.27 ± 4.70 g BW) and induced to spawn with 5,000 IU human chorionic gonadotropin (hCG) + 0.5 mL Ovaprim kg BW^-1. All hCG + Ovaprim-injected fish spawned 9 – 11 h after hormone administration but saline-injected fish (control group) failed to spawn. Mean egg production per female, fertilization and hatching rates, and larval production …

Exploring The Use Of Innovative Sustainable Proteins In Marine Finfish Diets, Luke Pilmer, Lindsey Woolley, Md Reaz Chaklader

Conference papers and presentations

No abstract provided.

Rapid Assessment Of Fish Freshness For Multiple Supply-Chain Nodes Using Multi-Mode Spectroscopy And Fusion-Based Artificial Intelligence, Hossein Kashani Zadeh, Mike Hardy, Mitchell Sueker, Yicong Li, Angela Tzouchas, Nicholas Mackinnon, Gregory Bearman, Simon A. Haughey, Alireza Akhbardeh, Insuck Baek, Chansong Hwang, Jianwei Qin, Amanda M. Tabb, Rosalee S. Hellberg, Shereen Ismail, Hassan Reza, Fartash Vasefi, Moon Kim, Kouhyar Tavakolian, Christopher T. Elliott

Food Science Faculty Articles and Research

This study is directed towards developing a fast, non-destructive, and easy-to-use handheld multimode spectroscopic system for fish quality assessment. We apply data fusion of visible near infra-red (VIS-NIR) and short wave infra-red (SWIR) reflectance and fluorescence (FL) spectroscopy data features to classify fish from fresh to spoiled condition. Farmed Atlantic and wild coho and chinook salmon and sablefish fillets were measured. Three hundred measurement points on each of four fillets were taken every two days over 14 days for a total of 8400 measurements for each spectral mode. Multiple machine learning techniques including principal component analysis, self-organized maps, linear and …

Evolution And Epidemiology Of Channel Catfish Virus (Ccv), Arun Venugopalan

Theses and Dissertations

Channel catfish virus disease (CCVD) is the principal viral disease in the United States catfish industry. The CCVD is caused by channel catfish virus (CCV), with mortality reaching up to 100% in fingerlings. CCV is assigned taxonomically to the family Alloherpesviridae, genus Ictalurivirus, species Ictalurid herpesvirus 1 (IcHV-1). To date, virulence, immunogenicity, and genome plasticity of the CCV field isolates have not been investigated. Three genotypes of CCV (IcHV-1A, IcHV-1B, and BCAHV) were identified using restriction fragment length polymorphism (RFLP) analysis. Virulence assessment of three representative isolates of RFLP groups suggests that IcHV-1B (pooled survival [mean ± SE]: 58.3% ± …

Understanding Dietary And Thermal Influences On Invasive Cichlids In Puerto Rico Reservoir Systems, Jacob A. Moreland

Theses and Dissertations

Jaguar Guapote (Parachromis managuensis) and Amphilophus spp. were assessed for effects of temperature on standard metabolic rate (SMR) and lower dissolved oxygen tolerance (LDOT), efficacy of gastric lavage for diet analysis, and diet in Puerto Rico reservoirs. Fish were acclimated to 22°C, 28°C, and 34°C and SMR and LDOT were measured using intermittent respirometers. Jaguar Guapote acclimated to 34°C had the greatest SMR, with 22°C and 28°C having similar SMR values. Amphilophus spp. acclimated to 28°C were similar to fish acclimated at 22°C and 34°C. Fish were resilient to high temperatures, losing equilibrium more rapidly at the coldest temperature, 22°C. …

Striped Blenny (Chasmodes Bosquianus) Presence And Behavior Between Sunrise And Sunset At Oyster Landing, South Carolina, Madeline Schuetze

Honors Theses

Lunar and diel cycles of fishes can help to interpret their behaviors during their reproductive season. Temperate estuaries are used by many benthic fishes for shelter and reproduction. This study examined the behavior and presence of striped blennies (Chasmodes bosquianus) during diel and lunar cycles. PVC pipe shelters were placed to mimic oyster shell nests, a natural habitat for blennies, and cameras were placed to monitor these shelters in April, May, and June 2022, during the striped blenny reproductive period. Video footage was reviewed and analyzed for the presence and behavior of both male and female blennies. Male presence …

Serotonin And Its Effects On The Chronic Stress Response In Crayfish Following Nonylphenol Exposure, Tara M. Olen

Masters Theses

Current research suggests that stress in both vertebrates and invertebrates is modulated in part by the neurotransmitter serotonin. It has been shown that crayfish can function as a good neurophysiological model, as they have less complex neurological systems than vertebrates, so mechanistic causes for stress can be more readily studied and understood. One potential stressor for aquatic species such as crayfish would be nonylphenol, a hydrophobic chemical used in agricultural products that can make its way into the water supply due to agricultural runoff. Nonylphenol can lead to physiological and behavioral impairments in crayfish and these impairments likely induce stress …

Recreational Fishing For Abalone In Western Australia In 2021/22: Estimates Of Participation, Effort And Catch., Claire B. Smallwood, Karina L. Ryan, Eva K.M. Lai, Lucy J. Rudd, Lachlan W. Strain

Fisheries Research Reports

The Western Australian Recreational Abalone Fishery (RAF) operates in shallow coastal waters along the metropolitan, south-west and south coasts. This hand collection fishery targets three species of abalone. Roe’s Abalone (Haliotis roei) inhabit nearshore reef complexes and are therefore generally collected while wading from the shore in accessible areas. This species is taken from the metropolitan, south-west and south coast regions. Greenlip Abalone (H. laevigata) and Brownlip Abalone (H. conicopora) are collected while wading (including snorkelling) and diving (using compressed air) and occur predominantly in the south coast region.

Recreational fishing for all abalone …

Wild Sea Cucumber Trade In Rural Madagascar : Consequences For Conservation And Human Welfare, Emily L. Rothamel

Theses, Dissertations and Culminating Projects

Overexploitation of fisheries is a challenge to both marine conservation and human welfare. The trade of sea cucumbers is a multi-billion-dollar market, spanning over 70 countries. Global concern over unsustainable sea cucumber trade led to the inclusion of three species in CITES Appendix II, two of which are found in Madagascar (Holothuria fuscogilva and H. nobilis). I used 792 structured interviews (2015–2020) to study the intensity of sea cucumber collection and exportation in rural northeastern Madagascar, where 30% of all (terrestrial and aquatic) native species are threatened with extinction. Wild sea cucumber collection was common and increased tenfold during the …

Red Snapper Abundance, Growth, And Movement At Different Structural Configurations In The Rio Grande Valley Artificial Reef, Marybeth J. Weihbrecht

Theses and Dissertations

The Rio Grande Valley (RGV) artificial reef was built with the goal of providing habitat for reef fish at various life stages. This study used fish trapping to analyze red snapper and grey triggerfish size and abundance in the RGV reef. Mark-recapture of red snapper was utilized to determine growth, movement, and site fidelity within the reef. Nine configurations of patches consisting of varying combinations and densities of concrete pyramids and low-profile modules were surveyed, as well as additional sites of cinder block palettes and concrete railroad ties. Red snapper and triggerfish abundance per trap hour varied significantly by site …

Growth, Mortality, And Movement Of Endemic Bartram's Bass And Invasive Alabama Bass In Upper Savannah River Basin Tributaries, Tyler Zumwalt

All Theses

Bartram’s Bass are an endemic to the Upper Savannah River basin in North Carolina, South Carolina, and Georgia. Bartram’s Bass are facing many risks, primary among them being hybridization with nonnative Alabama Bass. More recently, nonnative Alabama Bass and their hybrid congeners have been observed moving from reservoirs into tributaries where the remaining Bartram’s Bass populations exist. Thus, for Chapter 1 we sought to better understand the threat of nonnative gene spreading in tributary systems. To do this, we 1) quantified the movement of pure Alabama Bass, Bartram’s Bass, and their hybrids, 2) assessed correlations between movement and abiotic variables, …

Determination Of Cadmium Uptake In Crassostrea Virginica Shell Under Controlled Conditions, Joseph John Pavelites Ii

Graduate Theses and Dissertations (2019 - present)

The objective of this thesis was to meet growing demand for the development of environmental biomonitors that protect ecosystems and public health. To do this, I determined the potential of oyster shell as a bioindicator of cadmium (Cd) in the environment by determining the mode of Cd uptake and relationships between Cd concentrations in the environment, shell, and soft tissues of juvenile eastern oysters (Crassostrea virginica Gmelin). I performed a review of the literature on the ability of oyster shell to retain metal contaminants and the factors that could affect this process (Chapter 2). I then reared C. virginica …

Physiological, Temporal, And Environmental Determinants Of Forage Fish Caloric Content In The Gulf Of Mexico, Rebecca R. Walsh

Honors Theses

Within the Gulf of Mexico, forage fish species serve as an important link between lower trophic levels and higher trophic levels, supporting economically valuable predator fish, birds, and mammals. Despite the key ecological role of forage fish, fisheries management efforts are often directed elsewhere; as a result, input data for fisheries models is unavailable for many forage fish species. To fill this knowledge gap, we sought to produce species-specific caloric content values for four forage fish species in the Gulf of Mexico: Atlantic croaker (Micropogonias undulatus), white trout (Cynoscion arenarius), bay anchovy (Anchoa mitchilli), …

Spatial Assessment Of Aquatic Macroinvertebrate Communities In Tributaries Of Lake Dardanelle, Brendon K. Mitchell

ATU Scholars Symposium

Aquatic macroinvertebrates are key bioindicators of water/habitat quality and can be used to catch changes in the health of the aquatic systems that they live within. They can also be used to determine a fish community as many fish species require macroinvertebrates as a key part of their diet. These macroinvertebrate communities can change significantly due to varying land-use practices on surrounding riparian area. This is especially in places like Arkansas with lots of agriculture and an increasing population. We assessed 6 tributaries of Lake Dardanelle (Bakers Creek, Shoal Creek, Spadra Creek, Middle Fork Illinois Bayou, Hurricane Creek, and Mill …