Shell alterations in the limpet Bostrycapulus odites: A bioindicator of harbour pollution and mine residuals |
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| Institution: | 1. Faculty of Technical Sciences, University of Novi Sad, Novi Sad, Serbia;2. Faculty of Civil Engineering, University of Novi Sad, Subotica, Serbia;1. Departamento de Prehistoria, Museo Arqueológico Nacional, Serrano 13, 28001 Madrid, Spain;2. Departamento de Prehistoria, Facultad de Geografía e Historia, Universidad Complutense, Profesor Aranguren, s/n, 28040 Madrid, Spain;3. Departamento de Prehistoria, Universidad de Salamanca, Cervantes s/n, 37002 Salamanca, Spain;4. Dpto. Prehistoria, Arqueología, Hª Antigua, Hª Medieval y CCTT Historiográficas, Campus de la Merced, Universidad de Murcia, 30071 Murcia, Spain;5. Departamento de Prehistoria y Arqueología, Universidad Nacional de Educación a Distancia, Senda del Rey 7, 28040 Madrid, Spain;6. Área de Prehistoria, Universidad del País Vasco, Tomas y Valiente s/n, Apdo. 2111, 01006 Vitoria-Gasteiz, Spain;7. Grupo de Investigación Arqueobiología, Instituto de Historia, CSIC, Albasanz 26-28, 28037 Madrid, Spain;1. Specialty Registrar in Anaesthesia and Intensive Care Medicine, Queens Medical Centre, Nottingham;2. Consultant in Anaesthesia and Critical Care, Queens Medical Centre, Derby Road, Nottingham, NG7 2UH Nottingham;1. Obstetric Fellow, King''s College Hospital, London, UK;2. Consultant in Liver Transplantation and Obstetric Anaesthesia, Department of Anaesthesia, King''s College Hospital, Denmark Hill, London SE5 9RS, UK;1. Laboratory of Analytical Chemistry, Faculty of Science, University of Zagreb, Croatia;2. Department of Ecology, Agronomy and Aquaculture, University of Zadar, Croatia;3. Department of Maritime Studies, University of Zadar, Croatia;1. Centre of Excellence in Marine Biology, University of Karachi, Karachi, 75270, Pakistan;2. Pakistan Council of Scientific and Industrial Research Laboratories Complex, Microbiology Section, Karachi, 75280, Pakistan;3. Food and Marine Resources Research Center, Pakistan Council of Scientific and Industrial Research Laboratories Complex, Karachi, 75280, Pakistan;4. Instituto de Ciências da Saúde, Universidade Paulista, Campus Jundiaí, São Paulo, Brazil;5. Laboratório de Manejo, Ecologia e Conservação Marinha, Instituto Oceanográfico, USP, São Paulo, Brazil |
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| Abstract: | Molluscs are commonly used as bioindicators because of their abundance, low motility and the information their shells record. Although in harbour areas gastropod shell deposition would be affected at an endocrinal level, which may increase their vulnerability, studies on the shell of gastropods are scarce. Bostrycapulus odites is a limpet species that possess those characteristics as well as a wide distribution. Limpets were collected in 2001 and 2011, in a channel polluted by both, harbour activities and leaching mine residuals, to compare to a 2011 sample from an unpolluted area within San Antonio Bay. The sensitivity to pollution of this species and the possibility of it use to detect changes in the environmental situation of an area in a 10 years period were investigated. Soft body wet weight and shell morphological variables were measured while shells were also analyzed through scanning electron microscopy and energy dispersive spectroscopy for microstructure and elemental composition, respectively. Maximum likelihood ratio test showed shells from the polluted channel were thicker as well as the same shells presented microstructure malformations and changes in elemental composition (lower Ca and O levels, higher C and Fe levels). The present results indicate that B. odites can be considered a useful bioindicator species to study these kinds of pollution and the potential processes implicated in shell alterations are discussed. |
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| Keywords: | Bioindicator Limpets Shell microstructure Shell elemental composition |
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