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Title

Experimental growth pattern calibration of Antarctic scallop shells (Adamussium colbecki, Smith 1902) to provide a biogenic archive of high-resolution records of environmental and climatic changes

Publication Year

2010

Author(s)
  • Lartaud, Franck
  • Chauvaud, Laurent
  • Richard, Joelle
  • Toulot, Aurore
  • Bollinger, Claire
  • Testut, Laurent
  • Paulet, Yves-Marie
Source
JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY Volume: 393 Issue: 1-2 Pages: 158-167 Published: 2010
ISSN
0022-0981 eISSN: 1879-1697
Abstract

To determine the potential of Antarctic bivalve shells as biomonitors for environmental and climatic variations in polar marine areas, we developed a growth model for juvenile Adamussium colbecki Smith, 1902 based on the use of in situ temporal calcein markings to calibrate growth patterns in the external striae formation. To minimize scallop stress caused by excessive handling, in situ benthic chambers were used for the marking experiment, during an exposure time of 6 h. Once marked, scallops remained on site in a benthic cage and were collected 18, 26, and 41 days later. Apart from a few specimens affected by possible calcein toxicity effects, the detectable mark in all shells revealed a higher austral summer growth rate for A. colbecki compared to other Antarctic bivalves. Using calcein labeling, we identified a near 14-day periodicity in the striae formation associated with the fortnightly seawater level regime. Striae counting and increment width measurements showed an annual cycle, with no clear cessation of growth in juvenile specimens, allowing age determination. Because of the relatively high growth rate for a polar species and easily recognizable sclerochronological calendar in the shell striae formation, A colbecki is an appropriate species for high-resolution (infra-monthly) geochemical sampling. Comparison between LA-ICP-MS analyses (Li, B, Mg, Mn, Co, Sr, Ba, Pb) from one shell and hydrological parameters (sea level, temperature, salinity) measured in seawater suggests, however, that more work is needed to calibrate the trace element proxies. Nevertheless, the shell of the Antarctic scallop A colbecki has tremendous potential for recording environmental conditions from time periods covering months to a few years in polar waters, notably the ice melting date. (C) 2010 Elsevier B.V. All rights reserved.

Author Keyword(s)
  • Adamussium colbecki
  • Antarctic scallop
  • Calcein marking
  • Growth pattern
  • LA-ICP-MS
KeyWord(s) Plus
  • ARAGONITIC BIVALVE SHELLS
  • STABLE-ISOTOPE VARIATION
  • MOLLUSK CHIONE-CORTEZI
  • GULF-OF-CALIFORNIA
  • TERRA-NOVA BAY
  • PECTEN-MAXIMUS
  • MYTILUS-EDULIS
  • SR/CA RATIOS
  • MERCENARIA-MERCENARIA
  • CALCIFICATION RATE
ESI Discipline(s)
  • Environment/Ecology
  • Plant & Animal Science
Web of Science Category(ies)
  • Ecology
  • Marine & Freshwater Biology
Adress(es)

[Lartaud, Franck] Univ Paris 06, CNRS, Observ Oceanol Banyuls, Lab Ecogeochim Environm Benth LECOB,FRE 3350, F-66650 Banyuls Sur Mer, France; [Lartaud, Franck; Chauvaud, Laurent; Toulot, Aurore; Paulet, Yves-Marie] IUEM UBO, CNRS, Lab Sci Environm Marin LEMAR, UMR 6539, F-29280 Plouzane, France; [Richard, Joelle] British Antarctic Survey, Cambridge CB3 0ET, England; [Bollinger, Claire] IUEM UBO, CNRS, UMR 6538, Lab Domaines Ocean, F-29280 Plouzane, France; [Testut, Laurent] LEGOS OMP, F-31400 Toulouse, France; [Lartaud, Franck] Univ Paris 06, CNRS, UMR 7193, iSTeP,Lab Biomineralisat & Environm Sedimentaires, F-75252 Paris 05, France

Reprint Adress

Lartaud, F (reprint author), Univ Paris 06, CNRS, Observ Oceanol Banyuls, Lab Ecogeochim Environm Benth LECOB,FRE 3350, Ave Fontaule, F-66650 Banyuls Sur Mer, France.

Country(ies)
  • France
  • United Kingdom
CNRS - Adress(es)
  • Domaines océaniques, UMR6538
  • Institut des Sciences de la Terre Paris (iSTeP), UMR7193
  • Laboratoire d'Ecogéochimie des Environnements Benthiques (LECOB), FRE3350
  • Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS), UMR5566
  • Laboratoire des sciences de l'environnement marin (LEMAR), UMR6539
  • Observatoire midi-Pyrénées (OMP), UMS831
Accession Number
WOS:000282396500020
uid:/MVZKHRHQ
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