CONTRIBUTION OF BENTHIC BLUE-GREEN-ALGAL RECRUITMENT TO LAKE POPULATIONS AND PHOSPHORUS TRANSLOCATION

被引:108
作者
BARBIERO, RP
WELCH, EB
机构
[1] Department of Civil Engineering, University of Washington, Seattle, Washington
关键词
D O I
10.1111/j.1365-2427.1992.tb00537.x
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
1. A two-season investigation was undertaken to determine the contribution of benthic recruitment to the population development of several species of blue-green algae. 2. Gloeotrichia echinulata populations were shown to be heavily subsidized by benthic recruitment, deriving on average 40% of their planktonic colonies from the benthos. 3. Benthic recruitment of Aphanizomenon flos-aquae; Anabaena flos-aquae and a second Anabaena species contributed less than 2% to planktonic increases, while Microcystis aeruginosa recruitment was negligible. 4. Phosphorus translocation via migrating G. echinulata accounted for most of the phosphorus (P) in the planktonic colonies, and constituted a significant portion of the internal loading of the lake. 5. Estimated P translocation via Aph. flos-aquae was relatively minor, although there was evidence of luxury uptake in the benthos.
引用
收藏
页码:249 / 260
页数:12
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