Glycymeris pilosa (Bivalvia) – A high-potential geochemical archive of the environmental variability in the Adriatic Sea

Melita Peharda, Eric O. Walliser, Krešimir Markulin, Ariadna Purroy, Hana Uvanović, Ivica Janeković, Ivan Župan, Ivica Vilibić, Bernd R. Schöne

Research output: Contribution to journalArticle

Abstract

Due to its outstanding longevity (decades), the shallow-water bivalve Glycmeris pilosa represents a prime target for sclerochronological research in the Mediterranean Sea. In the present study, we analyzed the microgrowth patterns and the stable carbon (δ13Cshell) and oxygen (δ18Oshell) isotopes of the outer shell layer of live-collected G. pilosa specimens from four different sites along the Croatian coast, middle Adriatic Sea. Combined analysis of shell growth patterns and temporally aligned δ18Oshell data indicated that the main growing season lasts from April to December, with fastest growth rates occurring during July and August when seawater temperatures exceeded 22 °C. Slow growth in the cold season (<12 °C) coincided with the formation of winter growth lines on the outer shell surface. The growth cessation occurred in winter, but on the outer shell surface the brown summer bands are more pronounced than the winter lines. Mutvei-staining of cross-sections facilitated the recognition of the growth lines. δ13Cshell values reflect ontogenetic changes in physiology as well as seasonal changes in primary production and salinity.

Original languageEnglish
Article number104759
JournalMarine Environmental Research
DOIs
Publication statusPublished - 1 Sep 2019

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shell (molluscs)
Bivalvia
Adriatic Sea
Oceans and Seas
shell
Growth
winter
cold season
Oxygen Isotopes
Physiology
isotopes
Seawater
physiology
seawater
Salinity
growing season
Isotopes
oxygen isotope
Coastal zones
primary production

Cite this

Peharda, Melita ; Walliser, Eric O. ; Markulin, Krešimir ; Purroy, Ariadna ; Uvanović, Hana ; Janeković, Ivica ; Župan, Ivan ; Vilibić, Ivica ; Schöne, Bernd R. / Glycymeris pilosa (Bivalvia) – A high-potential geochemical archive of the environmental variability in the Adriatic Sea. In: Marine Environmental Research. 2019.
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Glycymeris pilosa (Bivalvia) – A high-potential geochemical archive of the environmental variability in the Adriatic Sea. / Peharda, Melita; Walliser, Eric O.; Markulin, Krešimir; Purroy, Ariadna; Uvanović, Hana; Janeković, Ivica; Župan, Ivan; Vilibić, Ivica; Schöne, Bernd R.

In: Marine Environmental Research, 01.09.2019.

Research output: Contribution to journalArticle

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AU - Peharda, Melita

AU - Walliser, Eric O.

AU - Markulin, Krešimir

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AU - Uvanović, Hana

AU - Janeković, Ivica

AU - Župan, Ivan

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AU - Schöne, Bernd R.

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