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Ecology and shell chemistry of Loxoconcha matagordensis

Palaeogeography, Palaeoclimatology, Palaeoecology

By:
, , , , , , and
DOI: 10.1016/j.palaeo.2005.05.022

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Abstract

Studies of the seasonal ecology and shell chemistry of the ostracode Loxoconcha matagordensis and related species of Loxoconcha from regions off eastern North America reveal that shell size and trace elemental (Mg/Ca ratio) composition are useful in paleothermometry using fossil populations. Seasonal sampling of populations from Chesapeake Bay, augmented by samples from Florida Bay, indicate that shell size is inversely proportional to water temperature and that Mg/Ca ratios are positively correlated with the water temperature in which the adult carapace was secreted. Microprobe analyses of sectioned valves reveal intra-shell variability in Mg/Ca ratios but this does not strongly influence the utility of whole shell Mg/Ca analyses for paleoclimate application.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Ecology and shell chemistry of Loxoconcha matagordensis
Series title:
Palaeogeography, Palaeoclimatology, Palaeoecology
DOI:
10.1016/j.palaeo.2005.05.022
Volume
225
Issue:
1-4
Year Published:
2005
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Palaeogeography, Palaeoclimatology, Palaeoecology
First page:
14
Last page:
67
Number of Pages:
54