模拟升温和营养盐加富对大亚湾浮游生物群落代谢的影响*

doi:10.11978/2018075

热带海洋学报 ›› 2019, Vol. 38 ›› Issue (2): 48-57.doi: 10.11978/2018075CSTR: 32234.14.2018075

模拟升温和营养盐加富对大亚湾浮游生物群落代谢的影响^*

谢福武^1,²(), 宋星宇³(), 谭烨辉³, 谭美婷³, 黄亚东³, 刘华雪¹()

1. 中国水产科学研究院南海水产研究所, 广东省渔业生态环境重点实验室, 广东广州 510300
2. 海南省海洋与渔业科学院(海南省海洋开发规划设计研究院), 海南海口 571126
3. 中国科学院南海海洋研究所, 中国科学院热带海洋生物资源与生态重点实验室, 广东广州 510301;

收稿日期:2018-07-25 修回日期:2018-09-10 出版日期:2019-03-20 发布日期:2019-04-15
作者简介:
作者简介：谢福武(1992—), 男, 海南省万宁市人, 从事海洋生态学研究。E-mail: xfw1021900977@163.com
基金资助:
国家重点研发计划(2017YFC0506302);国家重点基础研究发展计划(2015CB452904);国家自然科学基金(41276161)

Impact of simulated warming and nutrients input on plankton community metabolism in Daya Bay^*

Fuwu XIE^1,²(), Xingyu SONG³(), Yehui TAN³, Meiting TAN³, Yadong HUANG³, Huaxue LIU¹()

1. Guangdong Provincial Key Laboratory of Fishery Ecological Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China
2. Hainan Academy of Ocean and Fisheries Sciences (Hainan Provincial Marine Development Plan and Design Research Institute), Haikou, 571126, China
3. Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;

Received:2018-07-25 Revised:2018-09-10 Online:2019-03-20 Published:2019-04-15
Supported by:
National Key Research and Development Program of China (2017YFC0506302);National Basic Research Program (2015CB452904);National Natural Science Foundation of China (41276161)

摘要/Abstract

摘要：

文章结合模拟升温和营养盐加富, 于2016年8月和2017年1月研究了夏季和冬季大亚湾海域浮游生物群落代谢特征, 以期深入了解浮游生物对升温和富营养化作用的响应机制。结果表明: 升温和营养盐输入均会影响浮游生物总初级生产力(GPP)和群落呼吸率(CR), 且GPP对环境的响应更敏感。夏季GPP除在培养前期(24h)极高温条件下受到显著抑制外, 营养盐输入的影响比温度的影响作用更显著; 而冬季GPP和CR受升温效应的影响显著(p<0.05)。总体看来, 升温效应和营养盐输入均能影响浮游生物群落碳代谢平衡, 导致海洋生态系统的稳定性降低, 进而影响海洋生物多样性以及渔业资源产出的数量和质量。

关键词: 浮游生物, 群落代谢, 营养盐输入, 大亚湾

Abstract:

Characters of plankton community metabolism of Daya Bay were studied using data collected in August 2016 and January 2017. The possible effects of nutrients input were discussed to understand the response mechanism of plankton to warming and eutrophication based on simulation experiments. The results indicated that both GPP (gross primary production) and CR (community respiration) were influenced by warming and nutrients input, and response of GPP to environment was seriously sensitive. The impact of GPP on nutrients input was more remarkably than that of temperature, except for being significantly inhibited in early cultured stage (24 h) with extremely high temperature conditions. In winter, both GPP and CR were significantly affected by the warming effect (p<0.05). Overall, both warming effect and nutrients input could affect carbon metabolism of plankton community which would lead to the declining of marine ecosystem stability, thereby affecting marine ecosystem stability and biodiversity and quality of marine ecological environment and fishery resource output.

Key words: plankton, community metabolism, nutrients input, Daya Bay

中图分类号:

P735.12

谢福武, 宋星宇, 谭烨辉, 谭美婷, 黄亚东, 刘华雪. 模拟升温和营养盐加富对大亚湾浮游生物群落代谢的影响^*[J]. 热带海洋学报, 2019, 38(2): 48-57.

Fuwu XIE, Xingyu SONG, Yehui TAN, Meiting TAN, Yadong HUANG, Huaxue LIU. Impact of simulated warming and nutrients input on plankton community metabolism in Daya Bay^*[J]. Journal of Tropical Oceanography, 2019, 38(2): 48-57.

图/表 11

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	单因素模拟实验条件(M1)	交互模拟实验(M2)
夏季	6个温度梯度(38℃、36℃、34℃、32℃、30℃、28℃)	3个营养盐加富梯度*和3个温度梯度(36℃、32℃、28℃)
冬季	6个温度梯度(28℃、26℃、24℃、22℃、20℃、18℃)	3个营养盐加富梯度*和3个温度梯度(28℃、24℃、20℃)

季节	站位	温度/℃	盐度/‰	pH	Chl-a/(μg·L^-1)	DIP/(μmol·L^-1)	DIN/(μmol·L^-1)	DIN/DIP
夏季	M1	28.3	30.7	8.1	5.37	0.44	35.46	80.59
夏季	M2	29.9	33.6	8.3	1.58	0.05	7.82	156.40
冬季	M1	18.4	29.1	8.0	0.63	0.51	12.50	24.51
冬季	M2	17.9	29.9	8.0	1.43	0.30	10.62	35.40

	营养盐	夏季				冬季
	营养盐	28℃	32℃	36℃	均值	20℃	24℃	28℃	均值
24h	低营养	5.21	4.32	0.47	3.33	5.38	2.78	1.76	3.31
	中营养	10.50	21.00	0.44	10.65	2.63	2.60	2.37	2.53
	高营养	8.14	7.53	1.44	5.70	2.63	3.00	1.40	2.34
	均值	7.95	10.95	0.78		3.55	2.79	1.84
72h	低营养	3.98	3.86	10.72	6.19	2.51	5.92	3.12	3.85
	中营养	8.15	11.39	11.63	10.39	2.91	4.52	3.14	3.52
	高营养	10.72	13.18	19.07	14.32	2.95	4.00	4.41	3.79
	均值	7.62	9.48	13.81		2.79	4.81	3.56

模拟升温和营养盐加富对大亚湾浮游生物群落代谢的影响^*

Impact of simulated warming and nutrients input on plankton community metabolism in Daya Bay^*

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模拟升温和营养盐加富对大亚湾浮游生物群落代谢的影响*

Impact of simulated warming and nutrients input on plankton community metabolism in Daya Bay*

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模拟升温和营养盐加富对大亚湾浮游生物群落代谢的影响^*

Impact of simulated warming and nutrients input on plankton community metabolism in Daya Bay^*