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Otolith Analyses Highlight Morpho-Functional Differences of Three Species of Mullet (Mugilidae) from Transitional Water

Author

Listed:
  • Claudio D’Iglio

    (Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy
    Institute for Marine Biological Resources and Biotechnology (IRBIM), National Research Council, 98122 Messina, Italy
    These authors contributed equally to this work.)

  • Sabrina Natale

    (Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy
    These authors contributed equally to this work.)

  • Marco Albano

    (Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy)

  • Serena Savoca

    (Department of Biomedical, Dental and Morphological and Functional Imaging, University of Messina, Via Consolare Valeria, 98166 Messina, Italy)

  • Sergio Famulari

    (Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy)

  • Claudio Gervasi

    (Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy)

  • Giovanni Lanteri

    (Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy)

  • Giuseppe Panarello

    (Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d’Alcontres 31, 98166 Messina, Italy)

  • Nunziacarla Spanò

    (Institute for Marine Biological Resources and Biotechnology (IRBIM), National Research Council, 98122 Messina, Italy
    Department of Biomedical, Dental and Morphological and Functional Imaging, University of Messina, Via Consolare Valeria, 98166 Messina, Italy)

  • Gioele Capillo

    (Institute for Marine Biological Resources and Biotechnology (IRBIM), National Research Council, 98122 Messina, Italy
    Department of Veterinary Sciences, University of Messina, Viale Dell’annunziata, 98168 Messina, Italy)

Abstract

Otoliths are used in taxonomy and ichthyology as they can provide a wide range of information about specimens. They are an essential tool to monitor the most sensitive species for a sustainable exploitation level. Despite the increasing use of sagittae in research, their inter- and intra-specific variability and eco-functionality are still poorly explored. This paper aims to investigate the inter- and intra-specific variability of Mugilidae sagittae using morphological and morphometrical analysis, as well as scanning electron microscopy and shape analysis. The sagittae of 74 specimens belonging to three different Mugilidae species, collected from a coastal lagoon, were analyzed to give an accurate description of their morphology, morphometry, shape and crystalline habits. The results highlighted the intra- and inter-specific variability of sagittae, showing morphometrical differences among species and slight differences between left and right sagittae in C. labrosus individuals. Moreover, SEM images showed a peculiar crystal organization, with several different crystal habits and polymorphs. This study provides an accurate description of sagittae in the studied species, deepening the knowledge on inter- and intra-specific variations and crystal habits and providing data which will be useful for future studies on otoliths. With this data, it will be possible to improve conservation and exploitation sustainability in sensitive habitats.

Suggested Citation

  • Claudio D’Iglio & Sabrina Natale & Marco Albano & Serena Savoca & Sergio Famulari & Claudio Gervasi & Giovanni Lanteri & Giuseppe Panarello & Nunziacarla Spanò & Gioele Capillo, 2021. "Otolith Analyses Highlight Morpho-Functional Differences of Three Species of Mullet (Mugilidae) from Transitional Water," Sustainability, MDPI, vol. 14(1), pages 1-25, December.
  • Handle: RePEc:gam:jsusta:v:14:y:2021:i:1:p:398-:d:715045
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