Otolith geochemistry discriminates among estuarine nursery areas of Solea solea and S. senegalensis over time

Abstract

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 452:193-203 (2012) - DOI: https://doi.org/10.3354/meps09621 Otolith geochemistry discriminates among estuarine nursery areas of Solea solea and S. senegalensis over time S. E. Tanner1,*, P. Reis-Santos1, R. P. Vasconcelos1, S. França1, S. R. Thorrold2, H. N. Cabral1 1Centro de Oceanografia, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisbon, Portugal 2Biology Department, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA *Email: setanner@fc.ul.pt ABSTRACT: Otolith geochemistry is used increasingly as a natural tag to retrospectively determine habitat use in marine fishes. It is necessary to first conduct a thorough assessment of spatio-temporal variability before attempting to use the approach to determine estuarine residency or natal origins. In particular, knowledge of temporal variation at different scales is important when such variability may confound spatial discrimination. We assayed elements and calculated the elemental ratios to Ca (Li:Ca, Mg:Ca, Mn:Ca, Cu:Ca, Sr:Ca, Ba:Ca, Pb:Ca) in otoliths of juvenile Solea solea and Solea senegalensis, collected over several months in 2006 and 2009 in Portuguese estuaries, using laser ablation inductively coupled plasma mass spectrometry (LA ICP-MS). The elemental compositions of the otoliths varied significantly between and within years in both of the species, although the within-year variability did not interfere in spatial discrimination. The overall classification accuracy of juveniles to their estuaries of origin varied among the years and species, ranging from 71.0 to 80.1%. Established elemental signatures constitute the baseline data for future assessments of connectivity between juvenile and adult populations of the 2 sole species. KEY WORDS: Otolith chemical composition · Temporal variability · Soleidae · Connectivity · Natural tags Full text in pdf format PreviousNextCite this article as: Tanner SE, Reis-Santos P, Vasconcelos RP, França S, Thorrold SR, Cabral HN (2012) Otolith geochemistry discriminates among estuarine nursery areas of Solea solea and S. senegalensis over time. Mar Ecol Prog Ser 452:193-203. https://doi.org/10.3354/meps09621 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 452. Online publication date: April 25, 2012 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2012 Inter-Research.