Is fish bone subfossil a good archive of heavy metal pollution on Nandao Island, South China Sea?

Xueying Wang, Jing Sun, Libin Wu, Liqiang Xu, Yongli Zhou, Zixuan Rao, Jing Jin, Xiaodong Liu

Research output: Contribution to journalArticle

Abstract

To examine whether historical fish bones can record the magnitude of heavy metal pollution, we analyzed up to 700 years old fish bone remains extracted from an ornithogenic sediment profile on Nandao Island, South China Sea. Bulk sediments and subfossil fish bones were analyzed for elemental and mineralogical composition, as well as stable carbon and nitrogen isotopes. The results showed that pre-1850 CE fish bones experienced significant diagenesis, and could not be used to reconstruct historical record of heavy metal pollution. Fish bone diagenesis was mainly attributed to the erosion from guano in sediment profile. In contrast, the fish bones from in post-1850 CE time were well preserved and could provide useful information on historical pollution loads over the past 160 years. Since 1850 CE, relatively high concentrations of heavy metals from anthropogenic sources, especially Zn, were recorded in fish bone subfossils on Nandao Island, South China Sea.

Original languageEnglish
Pages (from-to)175-186
Number of pages12
JournalMarine Pollution Bulletin
Volume143
DOIs
Publication statusPublished - 1 Jun 2019

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subfossil
South China Sea
Fish
Heavy metals
bone
Bone
heavy metals
Pollution
pollution
bones
heavy metal
fish
Sediments
sediments
diagenesis
sediment
guano
China
nitrogen isotope
historical record

Cite this

Wang, Xueying ; Sun, Jing ; Wu, Libin ; Xu, Liqiang ; Zhou, Yongli ; Rao, Zixuan ; Jin, Jing ; Liu, Xiaodong. / Is fish bone subfossil a good archive of heavy metal pollution on Nandao Island, South China Sea?. In: Marine Pollution Bulletin. 2019 ; Vol. 143. pp. 175-186.
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Is fish bone subfossil a good archive of heavy metal pollution on Nandao Island, South China Sea? / Wang, Xueying; Sun, Jing; Wu, Libin; Xu, Liqiang; Zhou, Yongli; Rao, Zixuan; Jin, Jing; Liu, Xiaodong.

In: Marine Pollution Bulletin, Vol. 143, 01.06.2019, p. 175-186.

Research output: Contribution to journalArticle

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