File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Survived but not safe: marine heatwave hinders metabolism in two gastropod survivors

TitleSurvived but not safe: marine heatwave hinders metabolism in two gastropod survivors
Authors
KeywordsMarine heatwave
Metabolic regulation
Nonadaptive metabolic depression
Thermal history
Issue Date2020
PublisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/marenvrev
Citation
Marine Environmental Research, 2020, v. 162, p. article no. 105117 How to Cite?
AbstractMarine heatwaves (MHWs) are an emerging threat to marine organisms that have increased in frequency and magnitude in the past decade. These extreme heating events can have differential impacts on organisms with some experiencing mortality while others survive. Here, we experimentally exposed two species of subtidal gastropod (Trochus sacellum and Astralium haematragum) to two realistic intensities of MHW to test the ability of different species to physiologically cope with extreme heating events. Extreme MHW conditions caused 100% mortality in both species within five days. While both species survived under moderate MHW conditions they showed evidence of nonadaptive metabolic depression. Both species demonstrated an inability to upregulate their metabolic rates at the higher temperatures following exposure to a MHW (i.e. reduced temperature of maximum metabolic rate; TMMR), suggesting a lack of molecular protective responses and ongoing physiological damage. Therefore, the physiological damage endured by heatwave survivors may lessen their ability to cope with subsequent stress until fully recovered. Repairing this damage may have serious repercussions for the rate of recovery of these normally resilient species and their ability to maintain their ecological functions post MHW, especially under the predicted increasing frequency, duration and magnitude of MHWs.
Persistent Identifierhttp://hdl.handle.net/10722/290253
ISSN
2023 Impact Factor: 3.0
2023 SCImago Journal Rankings: 0.876
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorHemraj, DA-
dc.contributor.authorPosnett, NC-
dc.contributor.authorMinuti, JJ-
dc.contributor.authorFirth, LB-
dc.contributor.authorRussell, BD-
dc.date.accessioned2020-10-22T08:24:09Z-
dc.date.available2020-10-22T08:24:09Z-
dc.date.issued2020-
dc.identifier.citationMarine Environmental Research, 2020, v. 162, p. article no. 105117-
dc.identifier.issn0141-1136-
dc.identifier.urihttp://hdl.handle.net/10722/290253-
dc.description.abstractMarine heatwaves (MHWs) are an emerging threat to marine organisms that have increased in frequency and magnitude in the past decade. These extreme heating events can have differential impacts on organisms with some experiencing mortality while others survive. Here, we experimentally exposed two species of subtidal gastropod (Trochus sacellum and Astralium haematragum) to two realistic intensities of MHW to test the ability of different species to physiologically cope with extreme heating events. Extreme MHW conditions caused 100% mortality in both species within five days. While both species survived under moderate MHW conditions they showed evidence of nonadaptive metabolic depression. Both species demonstrated an inability to upregulate their metabolic rates at the higher temperatures following exposure to a MHW (i.e. reduced temperature of maximum metabolic rate; TMMR), suggesting a lack of molecular protective responses and ongoing physiological damage. Therefore, the physiological damage endured by heatwave survivors may lessen their ability to cope with subsequent stress until fully recovered. Repairing this damage may have serious repercussions for the rate of recovery of these normally resilient species and their ability to maintain their ecological functions post MHW, especially under the predicted increasing frequency, duration and magnitude of MHWs.-
dc.languageeng-
dc.publisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/marenvrev-
dc.relation.ispartofMarine Environmental Research-
dc.subjectMarine heatwave-
dc.subjectMetabolic regulation-
dc.subjectNonadaptive metabolic depression-
dc.subjectThermal history-
dc.titleSurvived but not safe: marine heatwave hinders metabolism in two gastropod survivors-
dc.typeArticle-
dc.identifier.emailHemraj, DA: adhemraj@hku.hk-
dc.identifier.emailRussell, BD: brussell@hku.hk-
dc.identifier.authorityRussell, BD=rp02053-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.marenvres.2020.105117-
dc.identifier.pmid32866819-
dc.identifier.scopuseid_2-s2.0-85089846379-
dc.identifier.hkuros317327-
dc.identifier.volume162-
dc.identifier.spagearticle no. 105117-
dc.identifier.epagearticle no. 105117-
dc.identifier.isiWOS:000589576300009-
dc.publisher.placeUnited Kingdom-
dc.identifier.issnl0141-1136-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats