USE OF IMMOBILIZED ALGAE FOR ESTIMATING BIOAVAILABLE PHOSPHORUS RELEASED BY ZOOPLANKTON

被引：18

作者：

VANDONK, E ^{[1
]}

FAAFENG, BA ^{[1
]}

HESSEN, DO ^{[1
]}

KALLQVIST, T ^{[1
]}

机构：

[1] NORWEGIAN INST WATER RES,N-0808 OSLO 8,NORWAY

来源：

JOURNAL OF PLANKTON RESEARCH | 1993年 / 15卷 / 07期

关键词：

D O I：

10.1093/plankt/15.7.761

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

Cells of the green alga Selenastrum capricornutum were immobilized in permeable alginate beads to prevent them from being grazed by zooplankton. Algae were able to grow in these beads and were used as a new technique to estimate bioavailable phosphorus (P) released by zooplankton. P-limited algal cells were encapsulated in alginate beads and used to measure P-release by Daphnia pulex feeding on P-saturated and P-limited free algal cells. Daphnids grazing on P-saturated cells released 20 times more P available for the immobilized algae than animals grazing on P-limited cells (0.06 versus 0.003 mug P mg-1 Daphnia-DW h-1).

引用

页码：761 / 769

页数：9

共 29 条

[1]

ABDELHAMID MI, 1991, NIVA E88427Q470 REP

[2] CARBON, NITROGEN, AND PHOSPHORUS-CONTENT OF FRESH-WATER ZOOPLANKTON [J].