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Dubiel J, Scovil A, Speers-Roesch B, Wiseman S, de Jourdan B, Philibert D. Exposure to individual polycyclic aromatic compounds impairs the cardiac performance of American lobster (Homarus americanus) larvae. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2024; 269:106863. [PMID: 38422926 DOI: 10.1016/j.aquatox.2024.106863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/13/2024] [Accepted: 02/15/2024] [Indexed: 03/02/2024]
Abstract
The potential for oil spills poses a threat to marine organisms, the toxicity of which has been attributed primarily to polycyclic aromatic compounds (PACs). Predictive tools such as the target lipid model (TLM) have been developed to forecast and assess these risks. The aim of the present study was to characterize the cardiotoxicity of 10 structurally diverse PACs in American lobster (Homarus americanus) larvae by assessing heart rate following a 48 h exposure in a passive dosing system, and subsequently use the TLM framework to calculate a critical target lipid body burden (CTLBB) for bradycardia. Exposure to 8 of the 10 PACs resulted in concentration-dependent bradycardia, with phenanthrene causing the greatest effect. The TLM was able to effectively characterize bradycardia in American lobsters, and the cardiotoxic CTLBB value determined in this study is among the most sensitive endpoints included in the CTLBB database. This study is one of the first to apply the TLM to a cardiac endpoint and will improve predictive models for assessing sublethal impacts of oil spills on American lobster populations.
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Affiliation(s)
- J Dubiel
- Department of Biological Sciences, University of Lethbridge, Lethbridge, Alberta T1K 3M4, Canada
| | - A Scovil
- Department of Biological Sciences, University of New Brunswick, Saint John, New Brunswick E2L 4L5, Canada
| | - B Speers-Roesch
- Department of Biological Sciences, University of New Brunswick, Saint John, New Brunswick E2L 4L5, Canada
| | - S Wiseman
- Department of Biological Sciences, University of Lethbridge, Lethbridge, Alberta T1K 3M4, Canada
| | - B de Jourdan
- Huntsman Marine Science Centre, 1 Lower Campus Road, St. Andrews, New Brunswick E5B 2L7, Canada
| | - D Philibert
- Huntsman Marine Science Centre, 1 Lower Campus Road, St. Andrews, New Brunswick E5B 2L7, Canada.
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Ventura T, Nguyen C, Fitzgibbon QP, Abramov T, Smith GG, Elizur A. Crustacean larval factor shares structural characteristics with the insect-specific follicle cell protein. Sci Rep 2019; 9:2847. [PMID: 30808935 PMCID: PMC6391395 DOI: 10.1038/s41598-019-39173-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 01/17/2019] [Indexed: 11/17/2022] Open
Abstract
Literature on the cuticle formation in larval stages of the diverse group of decapod crustaceans is lacking, as opposed to a wealth of knowledge in several insect groups. Here we provide the first glimpse of the cuticular organisation in larvae of the eastern spiny lobster Sagmariasus verreauxi. A bioinformatic approach applied to S. verreauxi transcriptome through metamorphosis identified for the first time a small secreted protein with multiple isoforms that is highly expressed in crustacean larvae. This protein, named crustacean larval factor (Clf) shares structural characteristics with insect follicle cell protein 3 (FCP3), an insect-specific, rapidly evolving protein, with spatial-temporal regulated expression that is restricted to follicular cells during the production of the vitellin coat. Furthermore, we identified the FCP3 domain in additional structural proteins in multiple arthropod groups. Recombinant Clf inhibited in vitro calcium carbonate crystalline precipitation, in keeping with the finding that the spiny lobster larval cuticle is mainly composed of amorphous calcium carbonate. In addition, the recombinant Clf was shown to bind chitosan. Taken together, this research identifies two novel structural domains with lineage-specific expansion across arthropods. In crustaceans, Clf is found predominantly in larvae and the spatial-temporal regulated FCP3 factor occurs as a domain identified in multiple structural proteins across arthropods. Given the shared ten cysteines backbone between the Clf and FCP domains, a shared evolution is suggested and should be further explored.
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Affiliation(s)
- Tomer Ventura
- GeneCology Research Centre, School of Science and Engineering, University of the Sunshine Coast, 4 Locked Bag, Maroochydore, Queensland, 4558, Australia.
| | - Chan Nguyen
- GeneCology Research Centre, School of Science and Engineering, University of the Sunshine Coast, 4 Locked Bag, Maroochydore, Queensland, 4558, Australia
| | - Quinn P Fitzgibbon
- Institute for Marine and Antarctic Studies, University of Tasmania, Private Bag 49, Hobart, Tasmania, 7001, Australia
| | - Tomer Abramov
- GeneCology Research Centre, School of Science and Engineering, University of the Sunshine Coast, 4 Locked Bag, Maroochydore, Queensland, 4558, Australia
| | - Gregory G Smith
- Institute for Marine and Antarctic Studies, University of Tasmania, Private Bag 49, Hobart, Tasmania, 7001, Australia
| | - Abigail Elizur
- GeneCology Research Centre, School of Science and Engineering, University of the Sunshine Coast, 4 Locked Bag, Maroochydore, Queensland, 4558, Australia
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Leiva FP, Garcés C, Verberk WCEP, Care M, Paschke K, Gebauer P. Differences in the respiratory response to temperature and hypoxia across four life-stages of the intertidal porcelain crab Petrolisthes laevigatus. MARINE BIOLOGY 2018; 165:146. [PMID: 30220736 PMCID: PMC6132507 DOI: 10.1007/s00227-018-3406-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Accepted: 08/14/2018] [Indexed: 05/29/2023]
Abstract
For aquatic breathers, hypoxia and warming can act synergistically causing a mismatch between oxygen supply (reduced by hypoxia) and oxygen demand (increased by warming). The vulnerability of these species to such interactive effects may differ during ontogeny due to differing gas exchange systems. This study examines respiratory responses to temperature and hypoxia across four life-stages of the intertidal porcelain crab Petrolisthes laevigatus. Eggs, megalopae, juveniles and adults were exposed to combinations of temperatures from 6 to 18 °C and oxygen tensions from 2 to 21 kPa. Metabolic rates differed strongly across life-stages which could be partly attributed to differences in body mass. However, eggs exhibited significantly lower metabolic rates than predicted for their body mass. For the other three stages, metabolic rates scaled with a mass exponent of 0.89. Mass scaling exponents were similar across all temperatures, but were significantly influenced by oxygen tension (the highest at 9 and 14 kPa, and the lowest at 2 kPa). Respiratory responses across gradients of oxygen tension were used to calculate the response to hypoxia, whereby eggs, megalopae and juveniles responded as oxyconformers and adults as oxyregulators. The thermal sensitivity of the metabolic rates (Q10) were dependent on the oxygen tension in megalopae, and also on the interaction between oxygen tension and temperature intervals in adults. Our results thus provide evidence on how the oxygen tension can modulate the mass dependence of metabolic rates and demonstrate changes in respiratory control from eggs to adults. In light of our results indicating that adults show a good capacity for maintaining metabolism independent of oxygen tension, our study highlights the importance of assessing responses to multiple stressors across different life-stages to determine how vulnerability to warming and hypoxia changes during development.
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Affiliation(s)
- Félix P. Leiva
- Centro i~mar, Universidad de Los Lagos, Casilla 557, Puerto Montt, Chile
- Department of Animal Ecology and Physiology, Institute for Water and Wetland Research, Radboud University, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
| | - Cristóbal Garcés
- Centro i~mar, Universidad de Los Lagos, Casilla 557, Puerto Montt, Chile
| | - Wilco C. E. P. Verberk
- Department of Animal Ecology and Physiology, Institute for Water and Wetland Research, Radboud University, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
| | - Macarena Care
- Centro i~mar, Universidad de Los Lagos, Casilla 557, Puerto Montt, Chile
| | - Kurt Paschke
- Instituto de Acuicultura, Universidad Austral de Chile, Casilla 1327, Puerto Montt, Chile
- Centro FONDAP de Investigación en Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Chile
| | - Paulina Gebauer
- Centro i~mar, Universidad de Los Lagos, Casilla 557, Puerto Montt, Chile
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Nguyen NH, Fitzgibbon QP, Quinn J, Smith G, Battaglene S, Knibb W. Can metamorphosis survival during larval development in spiny lobster Sagmariasus verreauxi be improved through quantitative genetic inheritance? BMC Genet 2018; 19:27. [PMID: 29728054 PMCID: PMC5936031 DOI: 10.1186/s12863-018-0621-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 04/30/2018] [Indexed: 11/17/2022] Open
Abstract
Background One of the major impediments to spiny lobster aquaculture is the high cost of hatchery production due to the long and complex larval cycle and poor survival during the many moult stages, especially at metamorphosis. We examined if the key trait of larval survival can be improved through selection by determining if genetic variance exists for this trait. Specifically, we report, for the first time, genetic parameters (heritability and correlations) for early survival rates recorded at five larval phases; early-phyllosoma stages (instars 1–6; S1), mid-phyllosoma stages (instars; 7–12; S2), late-phyllosoma stages (instars 13–17; S3), metamorphosis (S4) and puerulus stage (S5) in hatchery-reared spiny lobster Sagmariasus verreauxi. Results The data were collected from a total of 235,060 larvae produced from 18 sires and 30 dams over nine years (2006 to 2014). Parentage of the offspring and full-sib families was verified using ten microsatellite markers. Analysis of variance components showed that the estimates of heritability for all the five phases of larval survival obtained from linear mixed model were generally similar to those obtained from threshold logistic generalised models (0.03–0.47 vs. 0.01–0.50). The heritability estimates for survival traits recorded in the early larval phases (S1 and S2) were higher than those estimated in later phases (S3, S4 and S5). The existence of the additive genetic component in larval survival traits indicate that they could be improved through selection. Both phenotypic and genetic correlations among the five survival measures studied were moderate to high and positive. The genetic associations between successive rearing periods were stronger than those that are further apart. Conclusions Our estimates of heritability and genetic correlations reported here in a spiny lobster species indicate that improvement in the early survival especially during metamorphosis can be achieved through genetic selection in this highly economic value species. Electronic supplementary material The online version of this article (10.1186/s12863-018-0621-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Nguyen H Nguyen
- GeneCology Research Center, The University of the Sunshine Coast, Maroochydore DC, QLD, 4558, Australia.
| | - Quinn P Fitzgibbon
- Fisheries and Aquaculture, Institute of Marine and Antarctic Studies, University of Tasmania, Private Bag 49, Hobart, TAS, 7001, Australia
| | - Jane Quinn
- GeneCology Research Center, The University of the Sunshine Coast, Maroochydore DC, QLD, 4558, Australia
| | - Greg Smith
- Fisheries and Aquaculture, Institute of Marine and Antarctic Studies, University of Tasmania, Private Bag 49, Hobart, TAS, 7001, Australia
| | - Stephen Battaglene
- Fisheries and Aquaculture, Institute of Marine and Antarctic Studies, University of Tasmania, Private Bag 49, Hobart, TAS, 7001, Australia
| | - Wayne Knibb
- GeneCology Research Center, The University of the Sunshine Coast, Maroochydore DC, QLD, 4558, Australia
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Kezos JN, Cabral LG, Wong BD, Khou BK, Oh A, Harb JF, Chiem D, Bradley TJ, Mueller LD, Rose MR. Starvation but not locomotion enhances heart robustness in Drosophila. JOURNAL OF INSECT PHYSIOLOGY 2017; 99:8-14. [PMID: 28285040 DOI: 10.1016/j.jinsphys.2017.03.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 02/27/2017] [Accepted: 03/06/2017] [Indexed: 06/06/2023]
Abstract
Insects and vertebrates have multiple major physiological systems, each species having a circulatory system, a metabolic system, and a respiratory system that enable locomotion and survival in stressful environments, among other functions. Broadening our understanding of the physiology of Drosophila melanogaster requires the parsing of interrelationships among such major component physiological systems. By combining electrical pacing and flight exhaustion assays with manipulative conditioning, we have started to unpack the interrelationships between cardiac function, locomotor performance, and other functional characters such as starvation and desiccation resistance. Manipulative sequences incorporating these four physiological characters were applied to five D. melanogaster lab populations that share a common origin from the wild and a common history of experimental evolution. While exposure to starvation or desiccation significantly reduced flight duration, exhaustion due to flight only affected subsequent desiccation resistance. A strong association was found between flight duration and desiccation resistance, providing additional support for the hypothesis that these traits depend on glycogen and water content. However, there was negligible impact on rate of cardiac arrests from exhaustion by flight or exposure to desiccant. Brief periods of starvation significantly lowered the rate of cardiac arrest. These results provide suggestive support for the adverse impact of lipids on Drosophila heart robustness, a parallel result to those of many comparable studies in human cardiology. Overall, this study underscores clear distinctions among the connections between specific physiological responses to stress and specific types of physiological performance.
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Affiliation(s)
- James N Kezos
- Department of Ecology and Evolutionary Biology, Francisco J. Ayala School of Biological Sciences, University of California, Irvine, CA 92697-2525, United States.
| | - Larry G Cabral
- Department of Ecology and Evolutionary Biology, Francisco J. Ayala School of Biological Sciences, University of California, Irvine, CA 92697-2525, United States.
| | - Brandon D Wong
- Department of Ecology and Evolutionary Biology, Francisco J. Ayala School of Biological Sciences, University of California, Irvine, CA 92697-2525, United States.
| | - Belinda K Khou
- Department of Ecology and Evolutionary Biology, Francisco J. Ayala School of Biological Sciences, University of California, Irvine, CA 92697-2525, United States.
| | - Angela Oh
- Department of Ecology and Evolutionary Biology, Francisco J. Ayala School of Biological Sciences, University of California, Irvine, CA 92697-2525, United States.
| | - Jerry F Harb
- Department of Ecology and Evolutionary Biology, Francisco J. Ayala School of Biological Sciences, University of California, Irvine, CA 92697-2525, United States.
| | - Danny Chiem
- Department of Ecology and Evolutionary Biology, Francisco J. Ayala School of Biological Sciences, University of California, Irvine, CA 92697-2525, United States.
| | - Timothy J Bradley
- Department of Ecology and Evolutionary Biology, Francisco J. Ayala School of Biological Sciences, University of California, Irvine, CA 92697-2525, United States.
| | - Laurence D Mueller
- Department of Ecology and Evolutionary Biology, Francisco J. Ayala School of Biological Sciences, University of California, Irvine, CA 92697-2525, United States.
| | - Michael R Rose
- Department of Ecology and Evolutionary Biology, Francisco J. Ayala School of Biological Sciences, University of California, Irvine, CA 92697-2525, United States.
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