热带生物学报
熱帶生物學報
열대생물학보
JOURNAL OF SOUTH CHINA UNIVERSITY OF TROPICAL AGRICULTURE
2012年
2期
99-103
,共5页
李双波%王梅芳%孙成波%王兵兵%余祥勇
李雙波%王梅芳%孫成波%王兵兵%餘祥勇
리쌍파%왕매방%손성파%왕병병%여상용
马氏珠母贝%氮磷释放量%羊栖菜%吸收作用
馬氏珠母貝%氮燐釋放量%羊棲菜%吸收作用
마씨주모패%담린석방량%양서채%흡수작용
Pinctada martensii%amount of nitrogen & phosphorus released%Sargassum fusiforme%absorptioneffect
通过马氏珠母贝与羊栖菜的混养实验,测定了贝释放的氮磷含量及羊栖菜对贝释放氮磷的吸收量,比较了实验组(有贝)、模拟组(无贝)与对照组之间羊栖菜的生长差异,并进一步阐述了羊栖菜对马氏珠母贝代谢产物的吸收速率与去除效率。结果表明:实验组中,马氏珠母贝释放的氮以及羊栖菜吸收的氮均以NH4+-N为主;对4种代谢产物NH;-N,NO3-N,NO2-N,PO4^3+-P,马氏珠母贝的释放比例为27:21:1:18,而羊栖菜的吸收比例为17:12:1:2.6。方差分析结果表明,实验组与模拟组相比,藻对氮磷的吸收速率具有明显的促进作用(P〈0.05);各组间生长情况的Duncan’s多重比较表明,各组羊栖菜13增质量与13增长值均存在显著性差异(P〈0.05),大小顺序为:实验组〉对照组C〉模拟组〉对照组A〉对照组B。这表明马氏珠母贝的代谢产物能够促进羊栖菜生长。
通過馬氏珠母貝與羊棲菜的混養實驗,測定瞭貝釋放的氮燐含量及羊棲菜對貝釋放氮燐的吸收量,比較瞭實驗組(有貝)、模擬組(無貝)與對照組之間羊棲菜的生長差異,併進一步闡述瞭羊棲菜對馬氏珠母貝代謝產物的吸收速率與去除效率。結果錶明:實驗組中,馬氏珠母貝釋放的氮以及羊棲菜吸收的氮均以NH4+-N為主;對4種代謝產物NH;-N,NO3-N,NO2-N,PO4^3+-P,馬氏珠母貝的釋放比例為27:21:1:18,而羊棲菜的吸收比例為17:12:1:2.6。方差分析結果錶明,實驗組與模擬組相比,藻對氮燐的吸收速率具有明顯的促進作用(P〈0.05);各組間生長情況的Duncan’s多重比較錶明,各組羊棲菜13增質量與13增長值均存在顯著性差異(P〈0.05),大小順序為:實驗組〉對照組C〉模擬組〉對照組A〉對照組B。這錶明馬氏珠母貝的代謝產物能夠促進羊棲菜生長。
통과마씨주모패여양서채적혼양실험,측정료패석방적담린함량급양서채대패석방담린적흡수량,비교료실험조(유패)、모의조(무패)여대조조지간양서채적생장차이,병진일보천술료양서채대마씨주모패대사산물적흡수속솔여거제효솔。결과표명:실험조중,마씨주모패석방적담이급양서채흡수적담균이NH4+-N위주;대4충대사산물NH;-N,NO3-N,NO2-N,PO4^3+-P,마씨주모패적석방비례위27:21:1:18,이양서채적흡수비례위17:12:1:2.6。방차분석결과표명,실험조여모의조상비,조대담린적흡수속솔구유명현적촉진작용(P〈0.05);각조간생장정황적Duncan’s다중비교표명,각조양서채13증질량여13증장치균존재현저성차이(P〈0.05),대소순서위:실험조〉대조조C〉모의조〉대조조A〉대조조B。저표명마씨주모패적대사산물능구촉진양서채생장。
During the polycuhure of shellfish Sargassum fusiforme and algae Pinctada martensii, we compared the growth differences of algae in the experimental group with shellfish, the simulation group without shellfish and the control group by measuring the amount of nitrogen and phosphorus released by the shellfish and absorbed by the algae. Furthermore, the removal rate and the absorptivity of the algae for the metabolic products of the shellfish were also determined. Results showed that NH4+ - N is the main fort,1 of nitrogen which P. martensii released and S. fusiforme absorbed. Four metabolites are NH4+ - N, NO3- - N, NO2- - N and PO4^3+- P, and their release ratio from the shellfish is 27:21 : 1 : 18 while the algae absorption ratio 17:12:1:2.6. Analysis of variance showed that algae in the experimental group played a significant role in promoting the absorption rate of nitrogen and phosphorus (P 〈 0.05) when compared to the simulation group. Meanwhile, Duncan' s multiple comparisons between the groups showed that daily weight gain and daily growth gain of S. fusiforme were significantly different among all the groups (P 〈 O. 05 ) and increased in the order of the experimental group 〉 the control group C 〉 the stimulation group 〉 the control group A 〉 the control group B, which indicates that the metabolites of P. martensii can promote the growth of S. fusiforme. This research provides a theoretical basis for optimizing the polyculture density of P. martensii and S. fusiforme.