Annual changes in the community structure and diversity of fish eggs and larvae in the Huanghe River Estuary and its adjacent waters
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摘要: 为了解黄河口及邻近海域鱼卵、仔稚鱼的群落结构动态,分别于2014年、2015年、2017年和2018年的6月利用大型浮游生物网对黄河口及邻近海域进行4个航次的表层水平拖网调查。根据鱼卵、仔稚鱼的种类组成、数量分布等群落结构特征,运用生物多样性指数、聚类分析和皮尔逊相关性矩阵分析等方法对该海域鱼卵、仔稚鱼的资源分布进行了综合研究。结果表明,4年调查共采获鱼卵3 829粒,仔稚鱼234尾,隶属于7目14科15属。鱼卵的主要优势种为鳀(Engraulis japonicus)和短吻红舌鳎(Cynoglossus joyeri),仔稚鱼的主要优势种为斑鰶(Konosirus punctatus)和虾虎鱼科未定种Gobiidae sp.。生物多样性各指数均以2015年最高,2018年最低。利用R语言对鱼卵、仔稚鱼年间种类组成相似性进行聚类,将4个调查年份划分为3组,各分组之间主要的分歧种均为鳀。生物多样性各指数与环境因子之间皮尔逊相关性分析表明,盐度与鱼卵、仔稚鱼生物多样性的关系较为密切。分析认为,黄河口及邻近海域鱼卵、仔稚鱼群落分布和多样性的年间变化特征体现了鱼类对环境变异的响应。Abstract: In order to understand the community structure dynamics of fish eggs and larvae in the estuarine waters, four surveys were conducted in the coastal waters of the Huanghe River Estuary in June of 2014, 2015, 2017, and 2018. According to the species composition and quantitative distribution of fish eggs and larvae, the resource distribution of fish eggs and larvae in this water area was comprehensively studied by using the methods of biodiversity index, R software clustering and Pearson correlation matrix analysis. The results showed that a total of 3 829 fish eggs and 234 larvae were collected during the four surveys by horizontal trawl with plankton net. The obtained fish eggs and larvae belonged to 7 orders, 14 families and 15 genera. The dominant species of eggs were Engraulis japonicus and Cynoglossus joyeri. The dominant species of larvae were Konosirus punctatus and Gobiidae sp. All biodiversity indexes were the highest in 2015 and the lowest in 2018. Used the R language to cluster the similarity of the species composition between fish eggs and larvae, and divided the 4 survey years into 3 groups, each grouping the main divergent species were E. japonicus. The results of Pearson correlation matrix showed that salinity was closely related to the biodiversity of fish eggs and larvae. The analysis showed that the annual variation characteristics of community distribution and diversity of fish eggs and larvae in the Huanghe River Estuary and adjacent waters reflected the response of fish to environmental variation.
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Key words:
- fish eggs /
- fish larvae /
- dominant species /
- quantitative distribution /
- Huanghe River Estuary
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图 5 生物指数与环境因子的皮尔逊相关性矩阵
*表示显著性水平p<0.05;**表示显著性水平p<0.01;***表示显著性水平p<0.001;红色数字表示正相关,蓝色数字表示负相关;直方图表示因子的频度分布;黑圆圈表示D、H'、J'、表层温度、表层盐度和水深中任意两因子间的散点图;红线表示两因子之间的光滑拟合曲线;图中的横、纵坐标代表D、H'、J'、表层温度、表层盐度和水深
Fig. 5 Pearson correlation matrix between diversity of species indexes and environmental factors
* indicates significance level p<0.05; **indicates significance level p<0.01; ***indicates significance level p<0.001; red numbers indicate positive correlation, blue numbers indicate negative correlation; histogram indicates frequency distribution of factors; black circle indicates the scatter plot between any two factors of D, H', J', sea surface temperature, sea surface salinity and depth; red line indicates smooth curves in bivariate plots; the horizontal and vertical coordinates in the figure are values representing D, H', J' , sea surface temperature, sea surface salinity and depth
表 1 黄河口及邻近海域鱼卵、仔稚鱼种类
Tab. 1 The species of fish eggs and larvae in the Huanghe River Estuary and its adjacent waters
种类 年份 适温
类型栖所
类型生态
类型2014 2015 2017 2018 斑鰶
Konosirus punctatus* *★ *★ * WT CPN 近海 鳀
Engraulis japonicus* *★ * *★ WT CPN 近海 日本下鱵
Hyporhamphus sajori★ WW CPN 半咸水 鮻
Liza haematocheilus★ WT CPN 半咸水 尖海龙
Syngnathus acus★ WT CD 近海 鲬
Platycephalus indicus* WW CRA 近海 多鳞鱚
Sillago sihama* * * * WW CRA 近海 小带鱼
Eupleurogrammus muticus* * WW CBD 近海 绯䲗
Callionymus beniteguri* WT CD 近海 皮氏叫姑鱼
Johnius belangerii* WT CBD 沿岸 黄姑鱼
Nibea albiflora* WT CBD 沿岸 蓝点马鲛
Scomberomorus niphonius* WW CPN 近海 高眼鲽
Cleisthenes herzensteini* CT CD 沿岸 褐牙鲆
Paralichthys olivaceus* CT CD 近海 短吻红舌鳎
Cynoglossus joyeri* * * * WT CD 沿岸 虾虎鱼科未定种
Gobiidae sp.★ ★ 半咸水 未定种1
Unknown species1★ 未定种2
Unknown species2* 注:*表示鱼卵;★表示仔稚鱼。 表 2 黄河口及邻近海域鱼卵、仔稚鱼种类和数量的年间变化
Tab. 2 Annual variation of species and quantity of fish eggs and larvae in the Huanghe River Estuary and its adjacent waters
项目 类别 2014年 2015年 2017年 2018年 种类数 鱼卵 7 9 4 6 仔稚鱼 3 3 2 2 总种数 10 10 5 7 个体数量 鱼卵/粒 580 1 414 676 1 159 仔稚鱼/尾 22 17 72 123 总数量 602 1 431 748 1 282 表 3 黄河口及邻近海域鱼卵、仔稚鱼优势种组成和相对重要性指数(IRI)
Tab. 3 Important species composition of fish eggs and larvae and the index of relative importance(IRI) in the Huanghe River Estuary and its adjacent waters
类别 种类 2014年
IRI2015年
IRI2017年
IRI2018年
IRI鱼卵 短吻红舌鳎
Cynoglossus joyeri1 898.356 135.549 2 510.101 1 322.98 斑鰶
Konosirus punctatus498.256 27.503 242.424 61.834 小带鱼
Eupleurogrammus muticus279.023 − − 2.876 多鳞鱚
Sillago sihama89.686 14.144 681.181 399.77 鳀
Engraulis japonicus1 654.21 3 284.614 285.35 987.921 未定种2
Unknown species234.878 − − − 皮氏叫姑鱼
Johnius belengerii2.491 − − − 褐牙鲆
Paralichthys olivaceus− 33.789 − − 黄姑鱼
Nibea albiflora− 14.144 − − 鲬
Platycephalus indicus− 3.536 − − 绯䲗
Callionymus beniteguri− 1.179 − − 高眼鲽
Cleisthenes herzensteini− − − 2.397 蓝点马鲛
Scomberomorus niphonius− 6.286 − − 仔稚鱼 虾虎鱼科未定种
Gobiidae sp.2 380.952 − − 13.55 未定种1
Unknown species1264.55 − − − 尖海龙
Syngnathus acus26.455 − − − 斑鰶
Konosirus punctatus− 326.797 4 382.716 − 鮻
Liza haematocheilus− 32.679 − − 鳀
Engraulis japonicus− 359.477 − 542.005 日本下鱵
Hyporhamphus sajori− − 7.716 − 注:−代表当年航次没有出现该物种。 -
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