Abstract：To evaluate the impact of Spartina alterniflora litter in bottom matrix on mudflat benthos and the adaptive management of resource utilization, the matrix properties and 30 days survival and growth were investigated in 4 microhabitats [S. alterniflora with effective microorganisms (EM) improving, the single Spartina alterniflora, the mud, and the water] of red swamp crayfish Procambarus clarkii juveniles. The results showed that the survival rate was significantly greater in the EM group than that in the S. alterniflora group, without significant difference from the other two groups. The red swamp crayfish in the EM group had the significantly higher average body length growth than the crayfish in the other three groups did, and the significantly higher average weight gain than those in the mud group and the water group, but close to the S. alterniflora group. All crayfish in four groups had allometric growth patterns, and the juveniles in the EM group had the minimal condition factor. The bottom matrix in the EM group and the S. alterniflora groups affected the soil microbial community structure. Compared with the single S. alterniflora group, there was lower total organic carbon (TOC) and total nitrogen (TN) contents at the bottom matrix of the EM group. It proved that the litter of S. alterniflora directly flowing into the mud matrix had a significant inhibitory effect on the survival of red swamp crayfish. Adding EM improved the deterioration of habitat caused by S. alterniflora decomposition in mud matrix,accelerating decomposition, reducing poison and promoting growth. These findings provide technical support for promotion of red swamp crayfish aquaculture in coastal mudflats and increase the ecological utilization value of S. alterniflora, which provides reference with ecological management of mudflats.
[1]Daehler C C, Strong D R. Status, prediction and prevention of introduced cordgrass Spartina spp. invasions in Pacific estuaries, USA[J].Biological Conservation,1996,78(1/2):51-58. [2]侯栋梁,何东进,洪伟,等.入侵种互花米草影响我国滨海湿地土壤生态系统的研究进展[J].湿地科学与管理,2015,11(4):67-72. [3]陶世如.互花米草(Spartina alterniflora)凋落物空中分解的季节动态:原位和凋落物袋分解法比较[D].上海:复旦大学,2009. [4]莱尔.环境再生设计:为了可持续发展[M].骆天庆,译.上海:同济大学出版社,2017. [5]季鹏飞.克氏原螯虾在盐胁迫条件下差异化的microRNA表达谱的研究[D].南京:南京大学,2014. [6]Sögaard H, SuhrJessen T. Microbials for feed: beyond lactic acid bacteria[J].Feed International,1990,11(1):32-37. [7]夏围围,贾仲君.高通量测序和DGGE分析土壤微生物群落的技术评价[J].微生物学报,2014,54(12):1489-1499. [8]殷名称.鱼类生态学[M].北京:中国农业出版社,1995. [9]鲍士旦.土壤农化分析[M].3版.北京:中国农业出版社,2000. [10]叶春,王博,李春华,等.沉水植物黑藻腐解过程中营养盐释放过程[J].中国环境科学,2014,34(10):2653-2659. [11]陈婷,张蕾,唐建清,等.克氏原螯虾亚成体和幼体对不同氨浓度水环境的选择[J].长江流域资源与环境,2011,20(10):1186-1190. [12]Moriarty D J W. Control of luminous Vibrio species in penaeid aquaculture ponds[J].Aquaculture,1998,164(1/2/3/4):351-358. [13]顾金凤.微生物菌肥对盐渍化土壤的改良研究[D].扬州:扬州大学,2013. [14]田功太,许国晶,李壮,等.高等水生植物与底栖动物对中华绒螯蟹养殖底质环境的协同净化效果[J].江苏农业科学,2019,47(12):212-215. [15]Wang Y B. Effect of probiotics on growth performance and digestive enzyme activity of the shrimp Penaeus vannamei[J].Aquaculture,2007,269(1/2/3/4):259-264. [16]李浪平.克氏原螯虾食性、生长与掘洞行为的研究[D].武汉:华中农业大学,2006. [17]周贤君.拉萨裂腹鱼个体生物学和种群动态研究[D].武汉:华中农业大学,2014. [18]Günther J, Jiménez-Montealegre R. Effect of the probiotic Bacillus subtilis on the growth and food utilization of tilapia (Oreochromis niloticus) and prawn (Macrobrachium rosenbergii) under laboratory conditions[J].Revista De Biologia Tropical,2004,52(4):937-943. [19]徐广平,李艳琼,沈育伊,等.桂林会仙喀斯特湿地水位梯度下不同植物群落土壤有机碳及其组分特征[J].环境科学,2019,40(3):1491-1503. [20]高建华,杨桂山,欧维新.互花米草引种对苏北潮滩湿地TOC、TN和TP分布的影响[J].地理研究,2007,26(4):799-808. [21]张仲胜,吕宪国,薛振山,等.中国湿地土壤碳氮磷生态化学计量学特征研究[J].土壤学报,2016,53(5):1160-1169. [22]朱丽叶,田捷,黄成,等.芽孢杆菌对克氏原螯虾抗高温应激和生长的影响[J].齐鲁渔业,2015,32(7):1-4.
2021, Vol. 40 
