3
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      High site-fidelity in common bottlenose dolphins despite low salinity exposure and associated indicators of compromised health

      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

          More than 2,000 common bottlenose dolphins ( Tursiops truncatus) inhabit the Barataria Bay Estuarine System in Louisiana, USA, a highly productive estuary with variable salinity driven by natural and man-made processes. It was unclear whether dolphins that are long-term residents to specific areas within the basin move in response to fluctuations in salinity, which at times can decline to 0 parts per thousand in portions of the basin. In June 2017, we conducted health assessments and deployed satellite telemetry tags on dolphins in the northern portions of the Barataria Bay Estuarine System Stock area (9 females; 4 males). We analyzed their fine-scale movements relative to modeled salinity trends compared to dolphins tagged near the barrier islands (higher salinity environments) from 2011 to 2017 (37 females; 21 males). Even though we observed different movement patterns among individual dolphins, we found no evidence that tagged dolphins moved coincident with changes in salinity. One tagged dolphin spent at least 35 consecutive days, and 75 days in total, in salinity under 5 parts per thousand. Health assessments took place early in a seasonal period of decreased salinity. Nonetheless, we found an increased prevalence of skin lesions, as well as abnormalities in serum biochemical markers and urine:serum osmolality ratios for dolphins sampled in lower salinity areas. This study provides essential information on the likely behavioral responses of dolphins to changes in salinity (e.g., severe storms or from the proposed Mid-Barataria Sediment Diversion project) and on physiological markers to inform the timing and severity of impacts from low salinity exposure.

          Related collections

          Most cited references77

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

          The package “adehabitat” for the R software: A tool for the analysis of space and habitat use by animals

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

            Kernel Methods for Estimating the Utilization Distribution in Home-Range Studies

            B. Worton (1989)
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              The home-range concept: are traditional estimators still relevant with modern telemetry technology?

              Recent advances in animal tracking and telemetry technology have allowed the collection of location data at an ever-increasing rate and accuracy, and these advances have been accompanied by the development of new methods of data analysis for portraying space use, home ranges and utilization distributions. New statistical approaches include data-intensive techniques such as kriging and nonlinear generalized regression models for habitat use. In addition, mechanistic home-range models, derived from models of animal movement behaviour, promise to offer new insights into how home ranges emerge as the result of specific patterns of movements by individuals in response to their environment. Traditional methods such as kernel density estimators are likely to remain popular because of their ease of use. Large datasets make it possible to apply these methods over relatively short periods of time such as weeks or months, and these estimates may be analysed using mixed effects models, offering another approach to studying temporal variation in space-use patterns. Although new technologies open new avenues in ecological research, our knowledge of why animals use space in the ways we observe will only advance by researchers using these new technologies and asking new and innovative questions about the empirical patterns they observe.
                Bookmark

                Author and article information

                Contributors
                Role: ConceptualizationRole: Data curationRole: Formal analysisRole: Funding acquisitionRole: InvestigationRole: MethodologyRole: Project administrationRole: SoftwareRole: ValidationRole: VisualizationRole: Writing – original draftRole: Writing – review & editing
                Role: ConceptualizationRole: InvestigationRole: MethodologyRole: ResourcesRole: ValidationRole: Writing – original draftRole: Writing – review & editing
                Role: InvestigationRole: ResourcesRole: SoftwareRole: Writing – review & editing
                Role: InvestigationRole: ResourcesRole: Writing – review & editing
                Role: ConceptualizationRole: Formal analysisRole: MethodologyRole: SoftwareRole: ValidationRole: VisualizationRole: Writing – review & editing
                Role: InvestigationRole: ResourcesRole: Writing – review & editing
                Role: InvestigationRole: MethodologyRole: Project administrationRole: Supervision
                Role: ConceptualizationRole: InvestigationRole: MethodologyRole: Project administrationRole: ResourcesRole: SupervisionRole: Writing – review & editing
                Role: ConceptualizationRole: Formal analysisRole: Funding acquisitionRole: InvestigationRole: MethodologyRole: Project administrationRole: SupervisionRole: ValidationRole: VisualizationRole: Writing – review & editing
                Role: Editor
                Journal
                PLoS One
                PLoS One
                plos
                PLoS ONE
                Public Library of Science (San Francisco, CA USA )
                1932-6203
                30 September 2021
                2021
                : 16
                : 9
                : e0258031
                Affiliations
                [1 ] National Marine Mammal Foundation, San Diego, California, United States of America
                [2 ] Water Institute of the Gulf, Baton Rouge, Louisiana, United States of America
                [3 ] Centre for Research into Ecological and Environmental Modelling, University of St Andrews, St Andrews, United Kingdom
                [4 ] Chicago Zoological Society’s Sarasota Dolphin Research Program, Mote Marine Laboratory, Sarasota, Florida, United States of America
                [5 ] National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Office of Protected Resources, Silver Spring, Maryland, United States of America
                Wildlife Conservation Society Canada, CANADA
                Author notes

                Competing Interests: The authors have declared that no competing interests exist.

                Author information
                https://orcid.org/0000-0003-2748-8803
                Article
                PONE-D-21-17001
                10.1371/journal.pone.0258031
                8483354
                34591903
                cec4fcc3-d799-4534-a1f5-43ee54d18c82

                This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. The work is made available under the Creative Commons CC0 public domain dedication.

                History
                : 23 May 2021
                : 16 September 2021
                Page count
                Figures: 5, Tables: 3, Pages: 25
                Funding
                Funded by: funder-id http://dx.doi.org/10.13039/100007430, National Fish and Wildlife Foundation;
                Award ID: 57223
                Award Recipient :
                Funding for this work was provided by the National Fish and Wildlife Foundation Gulf Environmental Benefit Fund ( https://www.nfwf.org/gulf-environmental-benefit-fund; contract number 57223) to CS under subcontracts to Abt Associates Inc. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
                Categories
                Research Article
                Biology and Life Sciences
                Organisms
                Eukaryota
                Animals
                Vertebrates
                Amniotes
                Mammals
                Marine Mammals
                Dolphins
                Biology and Life Sciences
                Zoology
                Animals
                Vertebrates
                Amniotes
                Mammals
                Marine Mammals
                Dolphins
                Biology and Life Sciences
                Marine Biology
                Marine Mammals
                Dolphins
                Earth Sciences
                Marine and Aquatic Sciences
                Marine Biology
                Marine Mammals
                Dolphins
                Physical Sciences
                Chemistry
                Chemical Properties
                Salinity
                Physical Sciences
                Chemistry
                Physical Chemistry
                Chemical Properties
                Salinity
                Earth Sciences
                Geomorphology
                Topography
                Landforms
                Islands
                Medicine and Health Sciences
                Clinical Medicine
                Signs and Symptoms
                Lesions
                Ecology and Environmental Sciences
                Aquatic Environments
                Freshwater Environments
                Fresh Water
                Earth Sciences
                Marine and Aquatic Sciences
                Aquatic Environments
                Freshwater Environments
                Fresh Water
                Biology and Life Sciences
                Anatomy
                Body Fluids
                Urine
                Medicine and Health Sciences
                Anatomy
                Body Fluids
                Urine
                Biology and Life Sciences
                Physiology
                Body Fluids
                Urine
                Physical Sciences
                Chemistry
                Polymer Chemistry
                Macromolecules
                Polymers
                Polyvinyl Chloride
                Physical Sciences
                Materials Science
                Materials
                Polymers
                Polyvinyl Chloride
                Physical Sciences
                Chemistry
                Polymer Chemistry
                Polymers
                Polyvinyl Chloride
                Ecology and Environmental Sciences
                Aquatic Environments
                Freshwater Environments
                Wetlands
                Earth Sciences
                Marine and Aquatic Sciences
                Aquatic Environments
                Freshwater Environments
                Wetlands
                Earth Sciences
                Geomorphology
                Topography
                Landforms
                Wetlands
                Custom metadata
                All relevant data are within the manuscript and its Supporting Information files.

                Uncategorized
                Uncategorized

                Comments

                Comment on this article