摘要:
主要对福建红树林区4种海藻(扁浒苔Enteromorpha compressa,混合卷枝藻Bostrychia mixta,鹧鸪菜Caloglossa leprieurii,节附链藻Catenella impudica)的营养元素和氨基酸含量等进行研究.结果表明:(1)福建红树林区 4种海藻Fe,Mn含量显著高于一般海藻的平均浓度;Ca含量则普遍低于一般海藻的平均浓度;P,K,Mg含量则高于或低于一般海藻的平均浓度;(2)福建红树林区4种海藻总氨基酸含量(TAA)由高到低依次为(干重):扁浒苔265.89mg/g,混合卷枝藻211.96mg/g,鹧鸪菜189.53mg/g,节附链藻111.10mg/g;而必需氨基酸含量(EAA)由高到低依次为:混合卷枝藻87.42mg/g,扁浒苔82.92mg/g,鹧鸪菜73.62mg/g,节附链藻34.41mg/g;(3)在3和6月,对生长在秋茄板状根上和岩石面上的鹧鸪菜营养成分比较,前者的总氨基酸和必需氨基酸含量均大于后者;而元素含量则有不同变化.
关键词:
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海藻 /
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营养成分 /
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红树林 /
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福建
Abstract:
The analysis of nutrient compositions for Bostrychia mixta,Catenella impudica,Caloglossa leprieurii and Enteromorpha compressa that grow in Fujian mangrove areas shows that concentration of Feor Mnin these four algae is much higher than the mean concentration of Fe or Mn in common algae;concentration of Ca is lower than mean concentration of Ca in common algae;concentration of P,K,Mg is higher or lower than mean concentration of P,K,Mg in common algae.The range of concentration of total amino acids (TAA) among 4 algae is Enteromorpha compressa(DW) 265.89 mg/g > Bostrychia mixta 211.96 mg/g > Caloglossalep rieurii 189.53 mg/g > Catenella impudica 111.10 mg/g;the range of concentration of essential amino acids(EAA) is Bostrychia mixta 87.42mg/g > Enteromorpha compressa 82.92 mg/g > Caloglossa leprieurii 73.62 mg/g > Catenella impudica 34.41 mg/g.The TAA or EAA concentration in Caloglossa leprieurii growing on the buttress-like root surface of K andelia candel is higher than that on rocky surface near the Kandelia candel forest in March and June,respectively.Concentrations of chemical elements in Caloglossa leprieurii growing in the different habitats change with March and June.
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