Wet season upwelling and dry season chlorophyll-a describe interannual growth rates of Porites in southern China.

Southern China hosts coral communities in marginal environments that are characterized by low linear extension rates, low coral cover and/or no reef formation, thus providing natural laboratories to study coral communities with below average growth rates. Here we compare the annual linear extension...

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Autores principales:	Teng Teng Yang, Nathalie Fairbank Goodkin
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/bf62f83abd3c442b8688d64c3c4a0937
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spelling	oai:doaj.org-article:bf62f83abd3c442b8688d64c3c4a09372021-11-18T08:16:54ZWet season upwelling and dry season chlorophyll-a describe interannual growth rates of Porites in southern China.1932-620310.1371/journal.pone.0099088https://doaj.org/article/bf62f83abd3c442b8688d64c3c4a09372014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24901939/?tool=EBIhttps://doaj.org/toc/1932-6203Southern China hosts coral communities in marginal environments that are characterized by low linear extension rates, low coral cover and/or no reef formation, thus providing natural laboratories to study coral communities with below average growth rates. Here we compare the annual linear extension rates over 10 years (range 1.2 to 11.4 mm yr-1) of six Porites sp. coral cores collected from Hong Kong with monthly hydrographic data from the Hong Kong Environmental Protection Department. At all sites, low-density, dry season extension were more variable than high-density, wet season extension and on average, was lower at two of the three sites. We applied multi-variate linear regressions that revealed high-density, wet season band extension to inversely correlate most significantly to temperature (r = -0.39, p<0.01). In contrast, low-density, dry season band extension was more variable and correlated most significantly with dry season chlorophyll-a (Chl-a) (r = 0.64, p<0.001). Additionally, we find that corals at the site with highest dry season Chl-a have the highest dry season extension lengths. Our findings indicate that relative mixing of fresh and salt water in the wet season and primary productivity in the dry season, and their influences on aragonite saturation, are likely to impact interannual coral extension variability in marginal environments.Teng Teng YangNathalie Fairbank GoodkinPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 6, p e99088 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Teng Teng Yang Nathalie Fairbank Goodkin Wet season upwelling and dry season chlorophyll-a describe interannual growth rates of Porites in southern China.
description	Southern China hosts coral communities in marginal environments that are characterized by low linear extension rates, low coral cover and/or no reef formation, thus providing natural laboratories to study coral communities with below average growth rates. Here we compare the annual linear extension rates over 10 years (range 1.2 to 11.4 mm yr-1) of six Porites sp. coral cores collected from Hong Kong with monthly hydrographic data from the Hong Kong Environmental Protection Department. At all sites, low-density, dry season extension were more variable than high-density, wet season extension and on average, was lower at two of the three sites. We applied multi-variate linear regressions that revealed high-density, wet season band extension to inversely correlate most significantly to temperature (r = -0.39, p<0.01). In contrast, low-density, dry season band extension was more variable and correlated most significantly with dry season chlorophyll-a (Chl-a) (r = 0.64, p<0.001). Additionally, we find that corals at the site with highest dry season Chl-a have the highest dry season extension lengths. Our findings indicate that relative mixing of fresh and salt water in the wet season and primary productivity in the dry season, and their influences on aragonite saturation, are likely to impact interannual coral extension variability in marginal environments.
format	article
author	Teng Teng Yang Nathalie Fairbank Goodkin
author_facet	Teng Teng Yang Nathalie Fairbank Goodkin
author_sort	Teng Teng Yang
title	Wet season upwelling and dry season chlorophyll-a describe interannual growth rates of Porites in southern China.
title_short	Wet season upwelling and dry season chlorophyll-a describe interannual growth rates of Porites in southern China.
title_full	Wet season upwelling and dry season chlorophyll-a describe interannual growth rates of Porites in southern China.
title_fullStr	Wet season upwelling and dry season chlorophyll-a describe interannual growth rates of Porites in southern China.
title_full_unstemmed	Wet season upwelling and dry season chlorophyll-a describe interannual growth rates of Porites in southern China.
title_sort	wet season upwelling and dry season chlorophyll-a describe interannual growth rates of porites in southern china.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/bf62f83abd3c442b8688d64c3c4a0937
work_keys_str_mv	AT tengtengyang wetseasonupwellinganddryseasonchlorophylladescribeinterannualgrowthratesofporitesinsouthernchina AT nathaliefairbankgoodkin wetseasonupwellinganddryseasonchlorophylladescribeinterannualgrowthratesofporitesinsouthernchina
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Wet season upwelling and dry season chlorophyll-a describe interannual growth rates of Porites in southern China.

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