Nutrient structure of seawater and ecological responses in Jiaozhou Bay, China
Nutrient structure of seawater and ecological responses in Jiaozhou Bay, China
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胶州湾海水营养盐结构及生态响应
DOI：
10.1016/j.ecss.2006.04.014
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发表时间：
2006-08
期刊：
影响因子：
--
通讯作者：
YaoYun
中科院分区：
文献类型：
--
作者：
Shen Zhiliang;Liu Qun;Wu Yulin;YaoYun
测定了胶州湾海水中营养盐含量和不同粒径颗粒物中C、N、P、Si和叶绿素a含量，研究了胶州湾浮游植物不同粒径组分中C、N、P、Si的组成及其对海水营养盐结构的生态响应。胶州湾浮游植物以微型和微型为主。在所有大小的颗粒物组中发现了高C（16.50-20.97μmolL-1）、N（2.46-2.99μmolL-1）和低P（0.06-0.12μmolL-1）、Si（0.18-0.57μmolL-1）含量，以及高N/P（24.7-64.6）和低Si/P（4.4-10.8）、Si/N（0.06-0.20）比值。这些值反映了浮游植物不同大小组分的元素组成，作为对海水中营养盐的生态响应。该比率显著偏离Redfield值。海水和颗粒物的营养盐组成及其与叶绿素a的关系表明，浮游植物的生长可能受到硅的限制。硅限制有利于控制胶州湾的生态平衡。不同粒级浮游植物对海水营养盐结构的适应性不同。在浮游植物各粒级中，微型和微型浮游植物对富营养化胶州湾的适应性更强，对硅的同化竞争更大。这与胶州湾浮游植物的生物量和生产力主要受藻类控制的组成相一致。
Nutrient concentrations in seawater, and C, N, P, Si and chlorophyll a content in different-sized particulates were measured in Jiaozhou Bay, and C, N, P, Si composition in different-sized fractions of phytoplankton and their ecological responses to nutrient structure of the seawater were studied. Microphytoplankton and nanophytoplankton were dominant in Jiaozhou Bay. High C (16.50–20.97μmolL−1), N (2.46–2.99μmolL−1) and low P (0.06–0.12μmolL−1), Si (0.18–0.57μmolL−1) content, and high N/P (24.7–64.6) and low Si/P (4.4–10.8), Si/N (0.06–0.20) ratios were found in all sized groups of particulates. These values reflected the elemental compositions of different-sized fractions of phytoplankton as being an ecological response to the nutrients in the seawater. The ratios deviated significantly from the Redfield values. The nutrient composition of seawater and particulates and their relationship to chlorophyll a showed that phytoplankton growth was possibly limited by Si. Si limitation appears favorable for controlling the ecological equilibrium of Jiaozhou Bay. Different-sized fractions of phytoplankton had different suitability to nutrient structures of the seawater. Among phytoplankton size groups, nanophytoplankton and microphytoplankton growths were more adaptable in eutrophic Jiaozhou Bay, and more competitive for assimilation of Si. This is consistent with their diatom-dominated composition, controlling the biomass and productivity of phytoplankton in Jiaozhou Bay.
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影响因子：
2.5
作者：
D. Nelson;M. Brzezinski
通讯作者：
D. Nelson;M. Brzezinski
DOI：
10.1016/0198-0149(81)90109-6
发表时间：
1981
期刊：
--
影响因子：
--
作者：
M. Perry;R. Eppley
通讯作者：
M. Perry;R. Eppley
DOI：
--
发表时间：
--
期刊：
--
影响因子：
--
作者：
通讯作者：
--
影响因子：
4
作者：
Correll, DL;Jordan, TE;Weller, DE
通讯作者：
Weller, DE
DOI：
10.1080/00785236.1995.10422044
发表时间：
1995-03-01
期刊：
OPHELIA
影响因子：
--
作者：
NIXON, SW
通讯作者：
NIXON, SW