Alexis J. Khursigara

ORCID: 0000-0003-0139-2694
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About
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Research Areas
  • Fish Ecology and Management Studies
  • Environmental Toxicology and Ecotoxicology
  • Physiological and biochemical adaptations
  • Mercury impact and mitigation studies
  • Marine and fisheries research
  • Toxic Organic Pollutants Impact
  • Ocean Acidification Effects and Responses
  • Marine animal studies overview
  • Effects and risks of endocrine disrupting chemicals
  • Oil Spill Detection and Mitigation
  • Zebrafish Biomedical Research Applications
  • Ecology and Vegetation Dynamics Studies
  • Species Distribution and Climate Change
  • MicroRNA in disease regulation
  • Reproductive biology and impacts on aquatic species
  • Marine and coastal ecosystems
  • Fish Biology and Ecology Studies
  • Aquaculture Nutrition and Growth
  • Cancer, Lipids, and Metabolism
  • Ichthyology and Marine Biology
  • Cholesterol and Lipid Metabolism
  • Animal Vocal Communication and Behavior
  • Land Use and Ecosystem Services
  • Animal Behavior and Reproduction
  • Isotope Analysis in Ecology

University of North Texas
2021-2023

The University of Texas at Austin
2016-2022

Fairfield University
2019

The Deepwater Horizon (DWH) incident resulted in extensive oiling of the pelagic zone and shoreline habitats many commercially important fish species. Exposure to water-accommodated fraction (WAF) oil from spill causes developmental toxicity through cardiac defects However, few studies have evaluated effects on near-shore estuarine species such as red drum (Sciaenops ocellatus). Following exposure a certified weathered slick (4.74 μg/L ∑PAH50) DWH event, significant sublethal impacts were...

10.1021/acs.est.7b02037 article EN Environmental Science & Technology 2017-08-03

Many animal taxa live in groups to increase foraging and reproductive success aid predator avoidance. For fish, a large proportion of species spend all or part their lives groups, with group coordination playing an important role the emergent benefits group-living. Group cohesion can be altered by array factors, including exposure toxic environmental contaminants. Oil spills are one most serious forms pollution aquatic systems, while range effects acute oil on physiology have been...

10.1038/s41598-019-49994-1 article EN cc-by Scientific Reports 2019-09-18

Polycyclic aromatic hydrocarbons (PAHs) present in crude oil can cause global gene dysregulation and developmental impairment fish. However, the mechanisms that alter regulation are not well understood. In this study, larval red drum ( Sciaenops ocellatus) were exposed to water accommodated fractions of source (6.8, 13.7, 35.9 μg/L total PAHs) weathered slick (4.7, 8.1, 18.0 from Deepwater Horizon (DWH) spill. The mRNA-microRNA functional networks associated with toxicity DWH explored by...

10.1021/acs.est.9b00150 article EN Environmental Science & Technology 2019-02-28

The 2010 Deepwater Horizon (DWH) oil spill in the Gulf of Mexico was largest recent history and led to exposure many commercially ecologically important fish species. Crude-oil is known result compromised cardiorespiratory function swim performance fishes, presumably altering ecological by impairing ability capture prey or evade predators. However, this has yet be empirically tested. This study assessed impacts on thigmotaxis (avoidance exposed areas), routine activity, prey-capture larval...

10.1071/mf18263 article EN Marine and Freshwater Research 2019-02-01

Fishes exposed to crude oil have shown reduced sociability and poor habitat selection, which corresponded with increased predation risk. However, the contribution of oil-induced cardiorespiratory impairments these findings is uncertain. This study explores effect exposure on risk in a model fish species, Sciaenops ocellatus, across suite physiological behavioral end points elucidate mechanisms through any observed effects are manifested. Using mesocosms assess group predator avoidance, 36.3...

10.1021/acs.est.0c07945 article EN Environmental Science & Technology 2021-05-25

10.1016/j.cbpa.2021.111033 article EN publisher-specific-oa Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology 2021-07-09

The 2010 Deepwater Horizon oil spill impacted over 2100 km of shoreline along the northern Gulf Mexico, which coincided with spawning season many coastal species, including red drum (Sciaenops ocellatus). Red develop rapidly and are sensitive to crude exposure during embryonic larval periods. This study investigates predictions from recent transcriptomic studies that cholesterol biosynthetic processes by in fish early life stages. We found larvae exposed for 72 h ΣPAH50 3.55-15.45 µg L-1...

10.1016/j.aquatox.2021.105988 article EN cc-by Aquatic Toxicology 2021-10-07
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