大规模筏式贻贝养殖区浮游植物群落结构昼夜变化特征
S931; 于2023年9月对枸杞岛筏式贻贝养殖区内外共6个站点的浮游植物进行了昼夜连续采样,采用丰度和多样性指数及多元统计方法对养殖区内外浮游植物群落的昼夜变化特征进行了分析.结果显示:养殖区共采集浮游植物7 门 158种(区内为103种,区外为98种),其中硅藻门104种,占比65.82％,甲藻门30种,占比18.99％,其余门类占15.19％;区内白昼采集浮游植物94种,夜晚103种;对应区外为93种和98种.养殖区浮游植物优势种为9种,区外12种,其中中肋骨条藻(Skeletonema costatum)和夜光藻(Noctiluca scintillans)为区内外全天优势种.养殖区内...
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| Published in | 上海海洋大学学报 Vol. 33; no. 5; pp. 1211 - 1222 |
|---|---|
| Main Authors | , , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
上海海洋大学海洋牧场工程技术研究中心,上海 201306
01.09.2024
上海海洋大学海洋科学与生态环境学院,上海 201306%上海海洋大学海洋科学与生态环境学院,上海 201306 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1674-5566 |
| DOI | 10.12024/jsou.20240404476 |
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| Abstract | S931; 于2023年9月对枸杞岛筏式贻贝养殖区内外共6个站点的浮游植物进行了昼夜连续采样,采用丰度和多样性指数及多元统计方法对养殖区内外浮游植物群落的昼夜变化特征进行了分析.结果显示:养殖区共采集浮游植物7 门 158种(区内为103种,区外为98种),其中硅藻门104种,占比65.82％,甲藻门30种,占比18.99％,其余门类占15.19％;区内白昼采集浮游植物94种,夜晚103种;对应区外为93种和98种.养殖区浮游植物优势种为9种,区外12种,其中中肋骨条藻(Skeletonema costatum)和夜光藻(Noctiluca scintillans)为区内外全天优势种.养殖区内浮游植物平均丰度为白昼(1.77x107±2.5x106)cells/L,夜晚(1.64×107±2.31× 106)cells/L,对应区外分别为(1.87×107±3.36×106)cells/L和(1.75×107±2.72×106)cells/L.区内丰度变化呈多峰型,峰值出现在潮水涨、退至4分和涨平时分;区外丰度变化呈单峰型,且与潮汐变化紧密相关,峰值仅出现在涨平时分.nMDS分析显示养殖区内浮游植物群落昼夜差异不显著(P＞0.05),而区外浮游植物群落存在显著昼夜差异(P＜0.05),且与潮汐变化极显著相关(P＜0.01).温度、溶解氧和盐度与区内外浮游植物种类数和丰度皆显著相关(P＜0.05),浮游植物的种类数与磷酸盐和硝酸盐皆呈显著负相关(P＜0.05),丰度与氨氮和硅酸盐呈显著正相关(P＜0.05).研究表明,大规模筏式养殖对局部水域浮游植物群落的影响在赤潮生物聚集的阶段可呈现更为积极的结果. |
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| AbstractList | S931; 于2023年9月对枸杞岛筏式贻贝养殖区内外共6个站点的浮游植物进行了昼夜连续采样,采用丰度和多样性指数及多元统计方法对养殖区内外浮游植物群落的昼夜变化特征进行了分析.结果显示:养殖区共采集浮游植物7 门 158种(区内为103种,区外为98种),其中硅藻门104种,占比65.82％,甲藻门30种,占比18.99％,其余门类占15.19％;区内白昼采集浮游植物94种,夜晚103种;对应区外为93种和98种.养殖区浮游植物优势种为9种,区外12种,其中中肋骨条藻(Skeletonema costatum)和夜光藻(Noctiluca scintillans)为区内外全天优势种.养殖区内浮游植物平均丰度为白昼(1.77x107±2.5x106)cells/L,夜晚(1.64×107±2.31× 106)cells/L,对应区外分别为(1.87×107±3.36×106)cells/L和(1.75×107±2.72×106)cells/L.区内丰度变化呈多峰型,峰值出现在潮水涨、退至4分和涨平时分;区外丰度变化呈单峰型,且与潮汐变化紧密相关,峰值仅出现在涨平时分.nMDS分析显示养殖区内浮游植物群落昼夜差异不显著(P＞0.05),而区外浮游植物群落存在显著昼夜差异(P＜0.05),且与潮汐变化极显著相关(P＜0.01).温度、溶解氧和盐度与区内外浮游植物种类数和丰度皆显著相关(P＜0.05),浮游植物的种类数与磷酸盐和硝酸盐皆呈显著负相关(P＜0.05),丰度与氨氮和硅酸盐呈显著正相关(P＜0.05).研究表明,大规模筏式养殖对局部水域浮游植物群落的影响在赤潮生物聚集的阶段可呈现更为积极的结果. |
| Abstract_FL | Phytoplankton samples were collected both inside and outside a large scale raft mussel culture area of Gouqi island in September 2023.The diurnal variation characteristics of phytoplankton community inside and outside the culture area were analyzed by using abundance and diversity index and multivariate statistical methods.A total of 7 phyla and 158 species of phytoplankton were collected(103 species inside and 98 species outside the area),including 104 species of diatom(accounting for 65.82％ ),30 species of Pyrrophyta(accounting for 18.99％ ),and 15.19％ for the rest species.During the daytime,94 species were collected in the inner area,while 103 species were collected at night.In the outer area,93 species were collected during the daytime,and 98 species were collected at night.The dominant species of phytoplankton in the aquaculture area were 9 species,while in the outer area,there were 12 dominant species.Among them,Skeletonema costatum and Noctiluca scintillans were dominant species throughout the day in both areas.The average abundance of phytoplankton in the inner area was(1.77×107±2.5×106)cells/L during the daytime and(1.64×107±2.31×106)cells/L at night,while in the outer area,it was(1.87×107±3.36×106)cells/L during the daytime and(1.75×107±2.72×106)cells/L at night.The abundance variation in the inner area showed a multi-peak pattern,with peak values occurring during the rising and falling tides and the high tide.In contrast,the abundance variation in the outer area showed a single-peak pattern,closely related to tidal changes,with the peak value only occurring during the high tide.Non-metric multidimensional scaling(nMDS)analysis showed that there was no significant difference in phytoplankton community between day and night in the aquaculture area(P＞0.05),but there was significant difference in phytoplankton community outside the area(P＜0.05),which was significantly correlated with tidal changes(P＜0.01).Temperature,dissolved oxygen and salinity were significantly correlated with the number and abundance of phytoplankton(P＜0.05),the number of phytoplankton species was significantly negatively correlated with phosphate and nitrate(P＜0.05),and the abundance was significantly positively correlated with ammonia nitrogen and silicate(P＜0.05).The results showed that the impact of large-scale raft culture on phytoplankton community in local waters could present a more positive result at the stage of red tide organism aggregation. |
| Author | 钟威 毛嘉烜 章守宇 林军 吴晓凡 汪振华 李晶晶 |
| AuthorAffiliation | 上海海洋大学海洋科学与生态环境学院,上海 201306%上海海洋大学海洋科学与生态环境学院,上海 201306;上海海洋大学海洋牧场工程技术研究中心,上海 201306 |
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| Author_FL | WU Xiaofan LIN Jun ZHONG Wei LI Jingjing ZHANG Shouyu MAO Jiaxuan WANG Zhenhua |
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| DocumentTitle_FL | Diurnal variation of phytoplankton community structure in a large-scale raft mussel aquaculture area |
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| Keywords | 贻贝养殖 枸杞岛 筏式养殖 diurnal variation mussel farming phytoplankton 昼夜变化 raft culture 浮游植物 Gouqi Island |
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| Publisher | 上海海洋大学海洋牧场工程技术研究中心,上海 201306 上海海洋大学海洋科学与生态环境学院,上海 201306%上海海洋大学海洋科学与生态环境学院,上海 201306 |
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| Title | 大规模筏式贻贝养殖区浮游植物群落结构昼夜变化特征 |
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