globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2016.05.016
论文题名:
Annual shell growth pattern of the Stimpson's hard clam Mercenaria stimpsoni as revealed by sclerochronological and oxygen stable isotope measurements
作者: Kubota K.; Shirai K.; Murakami-Sugihara N.; Seike K.; Hori M.; Tanabe K.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2017
卷: 465
起始页码: 307
结束页码: 315
语种: 英语
英文关键词: Bivalve ; Mercenaria stimpsoni ; Microincrement ; Northwest Pacific ; Shell growth pattern ; Stable oxygen isotope ratios
英文摘要: Mercenaria stimpsoni (Stimpson's hard clam) is a shallow-water bivalve species distributed along mid- to high-latitude coasts of the Northwest Pacific influenced by the Oyashio cold current. As this animal can live for decades, oxygen isotopes of its shell can potentially provide long-term seawater temperature and salinity data. However, little is known about the life history traits of M. stimpsoni, which hampers their use in paleoclimatology. Thus, we investigated the growth patterns of three live-caught M. stimpsoni individuals from Funakoshi Bay, especially focusing on juvenile ontogenetic stages. Sclerochronological and high-resolution oxygen isotope analyses suggest that young (below age 10) specimens of this species grow predominantly between spring and fall, but ceased growing during the cold season when sea surface temperature drops below approximately 10 °C. The results also show that ontogenetically older (> 10 yr) specimens grow shell material almost exclusively during summer. Oxygen isotopes in ontogenetically younger portions of the shells are a good indicator of past summer temperatures. © 2016 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68114
Appears in Collections:过去全球变化的重建

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作者单位: International Coastal Research Center, Atmosphere and Ocean Research Institute, The University of Tokyo, Japan; Department of Marine Ecosystem Dynamics, Atmosphere and Ocean Research Institute, The University of Tokyo, Japan; Department of Solid Earth Science, Osaka Kyoiku University, Japan; Department of Earth and Planetary Science, The University of Tokyo, Japan

Recommended Citation:
Kubota K.,Shirai K.,Murakami-Sugihara N.,et al. Annual shell growth pattern of the Stimpson's hard clam Mercenaria stimpsoni as revealed by sclerochronological and oxygen stable isotope measurements[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2017-01-01,465
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