Page 122 - 《水产学报》2026年第3期

3 期 水 产 学 报 50 卷

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hgcI_clade
Cyanobium_PCC-6307
norank_f__norank_o__Chloroplast
CL500-29_marine_group
Limnobacter 25
norank_f__MWH-UniP1_aquatic_group
Ottowia
Candidatus_Aquiluna
norank_f__Rhizobiales_Incertae_Sedis
Mycobacterium 20
norank_f__norank_o__PeM15
unclassified_f__Comamonadaceae
Pseudarcicella
Polynucleobacter 属水平上相对丰度/% relative abundance at genus level
Fluviicola 15
unclassified_f__Rhodobacteraceae
Ramlibacter
norank_f__norank_o__Kapabacteriales
norank_f__NS11-12_marine_group 10
Methylocystis
unclassified_c__Actinobacteria
Candidatus_Methylopumilus
CL500-3
Limnohabitans 5
Sediminibacterium
C39
Luteolibacter
Dinghuibacter 0
S1 S2 S3 A W F P

图 6 各单元水体微生物群落属水平相对丰度热图 (前 1%)
Fig. 6 Heatmap of the microbial communities at the genus level in each unit (≥1%)

60
50
解释变异/% explained variation 40 importance 0
30
重要性/%
20
10
0

Limnobacter 5 10

15
CL500_29_marine_group **
Spearman R
norank_ f_norank_o_Chloroplast * * 1.0

0.5
Cyanobium_PCC_6307 * **
0
hgcI_clade * ** * −0.5
−1.0
NO 2 -N NO 3 -N TAN TN TP
COD Mn
图 7 基于相关性和随机森林回归模型的属水平上优势微生物群落与水质因子之间的关联
圆圈大小表示重要性，即解释变异的比例；颜色代表 Spearman 相关系数。“*”表示显著相关 (P<0.05)；“**”表示极显著相关 (P<0.01)。
Fig. 7 Associations of the microbial communities at the genus level and water quality factors based on
correlation and random forest regression model
The circle size indicates the variable importance, i.e., proportion of explained variability; and the colors represent Spearman’s correlation coefficients.
"*" indicates significant correlation (P<0.05), "**" indicates extremely significant correlation (P<0.01).

https://www.china-fishery.cn 中国水产学会主办 sponsored by China Society of Fisheries
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