DMSP in corals and benthic algae from the Great Barrier Reef

DMSP in corals and benthic algae from the Great Barrier Reef
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DOI:
10.1006/ecss.2002.1021
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发表时间:
2002-10-01
影响因子:
2.8
通讯作者:
Jones, RJ
Jones, RJ
中科院分区:
地球科学3区
文献类型:
--
作者:
Broadbent, AD;Jones, GB;Jones, RJ

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在这项研究中,报告了从大堡礁四个珊瑚礁采集的六种珊瑚和十种底栖藻类中DMSP的首次测量结果,以及对养殖虫黄藻的DMSP测量结果。在珊瑚中,DMSP虫黄藻的浓度范围为21 - 3831(平均值=743)fmol,在底栖大型藻类中,DMSP浓度范围为0.16 - 2.96 nmol cm(-2)(平均值=90),在养殖虫黄藻中,DMSP虫黄藻的浓度范围为48-285 fmol(平均值=153)。珊瑚中DMSP浓度最高的是福尔摩沙鹿角珊瑚(平均值为371 fmol DMSP虫黄藻(-1))和鹿角珊瑚(平均值为3341 fmol DMSP虫黄藻(-1)),浓度最高的是A. palifera是迄今为止所检查的珊瑚中报告的最高DMSP浓度。除了DMSP的种间差异外,还观察到种内变异。相邻的A.已知具有不同的热漂白阈值和形态学上不同的虫黄藻的福尔摩沙也被观察到具有不同的DMSP浓度,其中在漂白的殖民地中的虫黄藻含有平均浓度为436 finol虫黄藻(-1)的DMSP,而未漂白的蚁群含有平均浓度为171 finol虫黄藻(-1)的DMSP。本研究的结果已被用于计算来自GBR的底栖藻类(平均值=0.015 mmol m(-2))和珊瑚(平均值=2.22 mmol m(-2))中的面积归一化DMSP浓度。这一数据表明,底栖藻类和珊瑚是大不列颠及北爱尔兰联合王国沃茨中DMSP的重要储存库。(C)2002年由Elsevier Science Ltd.出版
In this study the first measurements of DMSP in six species of corals and ten species of benthic algae collected from four coral reefs in the Great Barrier Reef are reported, together with DMSP measurements made on cultured zooxanthellae. Concentrations ranged from 21 to 3831 (mean=743) fmol DMSP zooxanthellae(-1) in corals, 0.16 to 2.96 nmol DMSP cm(-2) (mean=90) for benthic macroalgae, and 48-285 fmol DMSP zooxanthellae(-1) (mean=153) for cultured zooxanthellae. The highest concentrations of DMSP in corals occurred in Acropora formosa (mean= 371 fmol DMSP zooxanthellae(-1)) and Acropora palifera (mean=3341 fmol DMSP zooxanthellae(-1)) with concentrations in A. palifera the highest DMSP concentrations reported in corals examined to date. As well as inter-specific differences in DMSP, intra-specific variation was also observed. Adjacent colonies of A. formosa that are known to have different thermal bleaching thresholds and morphologically distinct zooxanthellae, were also observed to have different DMSP concentrations, with the zooxanthellae in the colony that bleached containing DMSP at an average concentration of 436 finol zooxanthellae(-1), whilst the non-bleaching colony contained DMSP at an average concentration of 171 finol zooxanthellae(-1). The results of the present study have been used to calculate the area normalized DMSP concentrations in benthic algae (mean=0.015 mmol m(-2)) and corals (mean=2.22 mmol m(-2)) from the GBR. This data indicates that benthic algae and corals are a significant reservoir of DMSP in GBR waters. (C) 2002 Published by Elsevier Science Ltd.