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Isotope sclerochronology and season of annual growth line formation in limpet shells (Patella vulgata) from warm- and cold-temperate zones in the eastern North Atlantic

Donna Surge, Ting Wang, Igor Gutierrez-Zugasti and Patricia H. Kelley
Isotope sclerochronology and season of annual growth line formation in limpet shells (Patella vulgata) from warm- and cold-temperate zones in the eastern North Atlantic
Palaios (June 2013) 28 (6): 386-393

Abstract

In the western North Atlantic and Gulf of Mexico, isotope sclerochronology and field studies of the hard clams, Mercenaria mercenaria and M. campechiensis, collected across a latitudinal gradient show patterns in the seasonal timing of slow versus fast shell incremental growth. It is unknown, however, if similar patterns exist in the eastern North Atlantic. The European limpet, Patella vulgata, is abundant in rocky shore communities and archaeological deposits along the eastern North Atlantic. As such, it is a potentially valuable archive for paleoclimate and archaeological research. We used isotope sclerochronology to identify the seasonal timing of annual growth line formation in shells from the cold- and warm-temperate zones and at the boundary between these zones. Four shells from the cold-temperate zone (United Kingdom and Norway), five shells from the warm-temperate zone (Spain), and six shells from the boundary (near the English Channel) were analyzed. The isotopic records represent between two and eight years of growth. Cold-temperate shells formed annual lines in winter, and warm-temperate shells produced annual lines in summer. A mixed pattern was found at the boundary. This pattern in the seasonal timing of slowed growth across a latitudinal gradient is similar to that shown in studies of Mercenaria in the western North Atlantic. Thermal tolerance is the most likely mechanism for the observed changes in the timing of annual growth line formation with latitude.


ISSN: 0883-1351
Serial Title: Palaios
Serial Volume: 28
Serial Issue: 6
Title: Isotope sclerochronology and season of annual growth line formation in limpet shells (Patella vulgata) from warm- and cold-temperate zones in the eastern North Atlantic
Affiliation: University of North Carolina at Chapel Hill, Department of Geological Sciences, Chapel Hill, NC, United States
Pages: 386-393
Published: 201306
Text Language: English
Publisher: Society for Sedimentary Geology, Tulsa, OK, United States
References: 68
Accession Number: 2013-067959
Categories: Invertebrate paleontologyIsotope geochemistry
Document Type: Serial
Bibliographic Level: Analytic
Annotation: NSF grants ATM-0318152 and AGS-1103371
Illustration Description: illus. incl. sketch map
N67°30'00" - N68°25'00", E12°00'00" - E14°45'00"
N54°58'60" - N54°58'60", W01°34'60" - W01°34'60"
N43°28'00" - N43°28'00", W03°42'00" - W03°42'00"
Secondary Affiliation: University of York, GBR, United KingdomUniversity of North Carolina at Wilmington, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by SEPM (Society for Sedimentary Geology), Tulsa, OK, United States
Update Code: 201340
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