9
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Reproductive plasticity of Hawaiian Montipora corals following thermal stress

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Ocean warming, fueled by climate change, is the primary cause of coral bleaching events which are predicted to increase in frequency. Bleaching is generally damaging to coral reproduction, can be exacerbated by concomitant stressors like ultraviolet radiation (UVR), and can have lasting impacts to successful reproduction and potential adaptation. We compared morphological and physiological reproductive metrics (e.g., sperm motility, mitochondrial membrane integrity, egg volume, gametes per bundle, and fertilization and settlement success) of two Hawaiian Montipora corals after consecutive bleaching events in 2014 and 2015. Between the species, sperm motility and mitochondrial membrane potential had the most disparate results. Percent sperm motility in M. capitata, which declined to ~ 40% during bleaching from a normal range of 70–90%, was still less than 50% motile in 2017 and 2018 and had not fully recovered in 2019 (63% motile). By contrast, percent sperm motility in Montipora spp. was 86% and 74% in 2018 and 2019, respectively. This reduction in motility was correlated with damage to mitochondria in M. capitata but not Montipora spp. A major difference between these species is the physiological foundation of their UVR protection, and we hypothesize that UVR protective mechanisms inherent in Montipora spp. mitigate this reproductive damage.

          Related collections

          Most cited references93

          • Record: found
          • Abstract: found
          • Article: not found

          Global warming and recurrent mass bleaching of corals

          During 2015–2016, record temperatures triggered a pan-tropical episode of coral bleaching, the third global-scale event since mass bleaching was first documented in the 1980s. Here we examine how and why the severity of recurrent major bleaching events has varied at multiple scales, using aerial and
            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Spatial and temporal patterns of mass bleaching of corals in the Anthropocene

              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Coral reefs under rapid climate change and ocean acidification.

              Atmospheric carbon dioxide concentration is expected to exceed 500 parts per million and global temperatures to rise by at least 2 degrees C by 2050 to 2100, values that significantly exceed those of at least the past 420,000 years during which most extant marine organisms evolved. Under conditions expected in the 21st century, global warming and ocean acidification will compromise carbonate accretion, with corals becoming increasingly rare on reef systems. The result will be less diverse reef communities and carbonate reef structures that fail to be maintained. Climate change also exacerbates local stresses from declining water quality and overexploitation of key species, driving reefs increasingly toward the tipping point for functional collapse. This review presents future scenarios for coral reefs that predict increasingly serious consequences for reef-associated fisheries, tourism, coastal protection, and people. As the International Year of the Reef 2008 begins, scaled-up management intervention and decisive action on global emissions are required if the loss of coral-dominated ecosystems is to be avoided.
                Bookmark

                Author and article information

                Contributors
                henleym@si.edu
                Journal
                Sci Rep
                Sci Rep
                Scientific Reports
                Nature Publishing Group UK (London )
                2045-2322
                9 June 2021
                9 June 2021
                2021
                : 11
                : 12525
                Affiliations
                [1 ]GRID grid.419531.b, Smithsonian Conservation Biology Institute, ; Front Royal, VA USA
                [2 ]GRID grid.410445.0, ISNI 0000 0001 2188 0957, Hawaiʻi Institute of Marine Biology, , University of Hawaiʻi at Mānoa, ; Kāneʻohe, HI USA
                Author information
                http://orcid.org/0000-0002-4140-3709
                Article
                91030
                10.1038/s41598-021-91030-8
                8190081
                34108494
                ac057e73-540d-4877-a344-cfa1f61aac4d
                © The Author(s) 2021

                Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

                History
                : 11 December 2020
                : 9 March 2021
                Funding
                Funded by: FundRef http://dx.doi.org/10.13039/100009198, Smithsonian Conservation Biology Institute;
                Funded by: FundRef http://dx.doi.org/10.13039/100016463, Paul M. Angell Family Foundation;
                Funded by: Friends of the National Zoo
                Funded by: FundRef http://dx.doi.org/10.13039/100008783, University of Hawai'i at Mānoa;
                Award ID: Evans Fellowship
                Award Recipient :
                Funded by: FundRef http://dx.doi.org/10.13039/100016530, Hawaiʻi Institute of Marine Biology;
                Award ID: Lord Scholarship
                Award Recipient :
                Funded by: Roy and Patricia Disney Family Foundation
                Funded by: Volgenau Foundation
                Funded by: FundRef http://dx.doi.org/10.13039/100009724, Roddenberry Foundation;
                Funded by: Smithsonian Women’s Committee
                Funded by: Smithsonian Youth Access Grant
                Funded by: Lou and Chosun Mastriani
                Funded by: Bob and Tamie Dewitt
                Funded by: Smithsonian Scholars Marine Afterschool Program
                Categories
                Article
                Custom metadata
                © The Author(s) 2021

                Uncategorized
                reproductive biology,animal physiology,phenology,conservation biology,marine biology,coral reefs

                Comments

                Comment on this article