The influence of chemical dispersion and temperature on the physiological responses to physically dispersed crude oil exposure in larvae of a commercial cold-water marine invertebrate, the American Lobster (Homarus americanus)
| dc.contributor.advisor | Speers-Roesch, Ben | |
| dc.contributor.author | Scovil, Alexandra | |
| dc.date.accessioned | 2023-09-07T16:57:43Z | |
| dc.date.available | 2023-09-07T16:57:43Z | |
| dc.date.issued | 2022-04 | |
| dc.description.abstract | Pelagic larvae of marine animals are vulnerable to oil spills because they are a sensitive early life stage that inhabit near-surface waters. Yet, there is a poor understanding of the physiological effects of petroleum exposure and spill response measures in cold-water marine larvae, especially of invertebrates and during variation in natural factors such as temperature. I found that relevant concentrations of physically and chemically dispersed crude oil had no effect on the metabolic rate and heart rate of larval American lobster (Homarus americanus). Subsequently, I found that exposure to relevant concentrations of physically dispersed crude oil at three environmentally relevant temperatures (9,12,15°C) caused no effect at 12°C compared with an increased metabolic rate at 9°C and high mortality and low heart rate at 15°C. Overall, metabolic and cardiac function of lobster larvae are resilient to oil and dispersant exposure, but there is temperature-dependency in responses to physically dispersed oil. | |
| dc.description.copyright | ©Alexandra Scovil, 2022 | |
| dc.format.extent | x, 91 | |
| dc.format.medium | electronic | |
| dc.identifier.uri | https://unbscholar.lib.unb.ca/handle/1882/37353 | |
| dc.language.iso | en | |
| dc.publisher | University of New Brunswick | |
| dc.relation | Government of Canada’s Department of Fisheries and Oceans Multi-Partner Research Initiative (MPRI) | |
| dc.relation | New Brunswick Innovation Foundation | |
| dc.relation | Canada Foundation for Innovation | |
| dc.relation | Natural Sciences and Engineering Research Council of Canada (NSERC) | |
| dc.relation | Vaughan Fellowship | |
| dc.relation | UNB Environmental Studies and Rowland C. Frazee Graduate Scholarships | |
| dc.rights | http://purl.org/coar/access_right/c_abf2 | |
| dc.subject.discipline | Biology | |
| dc.title | The influence of chemical dispersion and temperature on the physiological responses to physically dispersed crude oil exposure in larvae of a commercial cold-water marine invertebrate, the American Lobster (Homarus americanus) | |
| dc.type | master thesis | |
| oaire.license.condition | other | |
| thesis.degree.discipline | Biology | |
| thesis.degree.grantor | University of New Brunswick | |
| thesis.degree.level | masters | |
| thesis.degree.name | M.Sc. |