ORCID Profile
0000-0001-8280-873X
Current Organisation
University of Illinois
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Publisher: Wiley
Date: 25-10-2012
Publisher: Wiley
Date: 12-2014
DOI: 10.1890/130283
Publisher: Springer Science and Business Media LLC
Date: 02-02-2018
Publisher: Wiley
Date: 27-02-2017
DOI: 10.1111/JFB.13290
Abstract: This study sought to observe the effects of submerged weight and frontal cross-sectional area of external telemetry packages on the kinematics, activity levels and swimming performance of small-bodied juvenile sharks, using lemon sharks Negaprion brevirostris (60-80 cm total length, L
Publisher: American Physiological Society
Date: 07-2018
DOI: 10.1152/AJPREGU.00238.2017
Abstract: Multiple environmental stressors may interact in complex ways to exceed or diminish the impacts of in idual stressors. In the present study, the interactive effects of two ecologically relevant stressors [increased temperature and partial pressure of carbon dioxide (Pco 2 )] were assessed for freshwater mussels, a group of organisms that are among the most sensitive and rapidly declining worldwide. The in idual and combined effects of elevated temperature (22°C–34°C) and Pco 2 (~230, 58,000 µatm) on juvenile L silis siliquoidea were quantified over a 5- or 14-day period, during which physiological and whole animal responses were measured. Exposure to elevated temperature induced a series of physiological responses, including an increase in oxygen consumption rates following 5 days of exposure at 31°C and an increase in carbonic anhydrase ( ca) and heat shock protein 70 mRNA levels following 14 days of exposure at 28°C and 34°C, respectively. Treatment with elevated Pco 2 activated acid-base regulatory responses including increases in CA and Na + -K + -ATPase activity and a novel mechanism for acid-base regulation during Pco 2 exposure in freshwater mussels was proposed. Thermal and CO 2 stressors also interacted such that responses to the thermal stressor were diminished in mussels exposed to elevated Pco 2 , resulting in the greatest level of mortality. Additionally, larger mussels were more likely to survive treatment with elevated Pco 2 and/or temperature. Together, exposure to elevated Pco 2 may compromise the ability of juvenile freshwater mussels to respond to additional stressors, such as increased temperatures, highlighting the importance of considering not only the in idual but also the interactive effects of multiple environmental stressors.
Publisher: Elsevier BV
Date: 11-2016
DOI: 10.1016/J.CBPA.2016.07.009
Abstract: Changes in environmental conditions can act as stressors, with potential consequences for the health and fitness of organisms. Rising levels of carbon dioxide (CO2) is one potential environmental stressor that is occurring more frequently in the environment and can be a stressor for aquatic organisms. In this study, the physiological responses of two species of unionid mussel, L silis siliquoidea and Amblema plicata, were assessed in response to exposure to two levels of elevated partial pressure of CO2 (pCO2) (~20,000 and ~55,000μatm) over a 28d period, followed by a subsequent 14d recovery period. Observations were consistent with responses associated with respiratory acidosis, as demonstrated by changes in hemolymph HCO3(-), Ca(2+), Cl(-), and Na(2+). Both species exposed to elevated pCO2 had elevated hemolymph HCO3(-) during the pCO2 treatment period compared to control mussels, but recovered once pCO2 was removed. Similarly, both species had elevated hemolymph Na(+) during exposure to elevated pCO2, and this returned to control levels for A. plicata but remained elevated for L. siliquoidea once the pCO2 stimuli was removed. Changes in hemolymph Ca(2+) and Cl(-) in response to elevated pCO2 were also observed, but these changes were species-specific. Additional physiological responses to elevated pCO2 (e.g., changes in hemolymph glucose and Mg(2+)) were consistent with a stress response in both species. This study demonstrates the importance of considering inter-specific differences in the response of organisms to stress, and also that responses to elevated pCO2 may be transient and can recover once the stress is removed.
Publisher: Springer Science and Business Media LLC
Date: 17-05-2017
DOI: 10.1007/S11356-017-9160-9
Abstract: Freshwater mussels are at-risk taxa and may be exposed to high levels of carbon dioxide (CO
Publisher: Springer Science and Business Media LLC
Date: 09-08-2017
Publisher: Springer Science and Business Media LLC
Date: 29-07-2016
DOI: 10.1007/S00360-016-1023-Z
Abstract: Freshwater mussels are some of the most imperiled species in North America and are particularly susceptible to environmental change. One environmental disturbance that mussels may encounter that remains understudied is an increase in the partial pressure of CO
Publisher: Public Library of Science (PLoS)
Date: 22-04-2015
Publisher: Elsevier BV
Date: 12-2017
DOI: 10.1016/J.CBPA.2017.02.023
Abstract: Commercial fisheries bycatch is a considerable threat to elasmobranch population recovery, and techniques to mitigate sub-lethal consequences can be improved with data on the energetic, physiological, and behavioral response of in iduals to capture. This study sought to estimate the effects of simulated longline capture on the behavior, energy use, and physiological stress of juvenile lemon sharks (Negaprion brevirostris). Captive sharks equipped with acceleration biologgers were subjected to 1h of simulated longline capture. Swimming behaviors were identified from acceleration data using a machine-learning algorithm, energetic costs were estimated using accelerometer-calibrated relationships and respirometry, and physiological stress was quantified with point-of-care blood analyzers. During capture, sharks exhibited nine-fold increases in the frequency of burst swimming, 98% reductions in resting, and swam as often as unrestrained sharks. Aerobic metabolic rates during capture were 8% higher than for unrestrained sharks, and accounted for a 57.7% increase in activity costs when excess post-exercise oxygen consumption was included. Lastly, sharks exhibited significant increases in blood lactate and glucose, but no change in blood pH after 1h of capture. Therefore, these results provide preliminary insight into the behavioral and energetic responses of sharks to capture, and have implications for mitigating sub-lethal consequences of capture for sharks as commercial longline bycatch.
Publisher: Elsevier BV
Date: 11-2016
Publisher: Wiley
Date: 07-08-2022
DOI: 10.1111/FAF.12696
Abstract: Post‐exercise mortality (PEM) may occur when fish exercise to exhaustion and are pushed so far beyond their physiological limits that they can no longer sustain life. Although fish exercise to overcome a variety of natural challenges, the phenomenon of PEM is most often observed as the result of interactions between fish and humans. The seminal work of Black (Can J Fish Aquat Sci, 15:573, 1958) and Wood et al. (J Fish Biol, 22:189, 1983) provided a foundation for exploring the potential causes of PEM in fish. With no “silver bullet” explaining PEM being apparent, contemporary research has continued to focus on physiological mechanisms of exhaustion in fish, including factors such as oxygen delivery, ion regulation, hormone signalling, and cardiac function. This paper provides an overview of these studies, and reviews the continuous improvement in data collection methods, tools, and experimental protocols used to examine the PEM phenomenon. These studies of exhaustion have played an important role in informing management actions for activities such as bycatch revival and fish passage. Since the contribution of Wood et al. (Journal of Fish Biology, 22(2):189–201, 1983), the combined efforts of fundamental and applied research have yielded a greater understanding of why fish die after severe exercise, yet much remains to be explored through future work.
Publisher: Elsevier BV
Date: 2017
Publisher: University of Chicago Press
Date: 09-2017
DOI: 10.1086/693376
Abstract: Freshwater fish may be exposed to high levels of carbon dioxide (CO
Publisher: Canadian Science Publishing
Date: 04-2073
Abstract: Zones of elevated carbon dioxide (CO 2 ) have the potential to deter the movement of fishes. Should CO 2 be used as a barrier, non-target organisms, such as freshwater mussels, have the potential to be impacted. In this study, the physiological responses of adult Fusconaia flava exposed to elevated partial pressures of CO 2 (pCO 2 ) over both short-term (6 h exposure with 6 h recovery) and long-term (4-, 8-, and 32-day exposure) periods were measured. A 6 h exposure to either ∼15 000 μatm (1 atm = 101.325 kPa) or ∼200 000 μatm caused an elevation in hemolymph Ca 2+ . Exposure to ∼200 000 μatm resulted in a decrease in hemolymph Cl − , and exposure to ∼15 000 μatm caused an increase in hemolymph Na + , whereas ∼200 000 μatm caused a decrease. Exposure to elevated pCO 2 for long-term periods caused a decrease in hemolymph Mg 2+ and an initial increase in hemolymph Ca 2+ . Body condition and hemolymph glucose were not significantly influenced by elevated pCO 2 for both experiments. This study shows that elevated pCO 2 had limited impacts on the physiological responses of adult freshwater mussels.
Publisher: Wiley
Date: 13-12-2017
DOI: 10.1002/ETC.3991
Abstract: Freshwater mussels may be exposed to elevations in mean partial pressure of carbon dioxide (pCO
No related grants have been discovered for Cory Suski.