Growth and productivity of the high Antarctic bryozoan Melicerita obliqua

被引：34

作者：

Brey, T ^{[1
]}

Gutt, J ^{[1
]}

Mackensen, A ^{[1
]}

Starmans, A ^{[1
]}

机构：

[1] Alfred Wegener Inst Polar & Marine Res, D-27576 Bremerhaven, Germany

来源：

MARINE BIOLOGY | 1998年 / 132卷 / 02期

关键词：

D O I：

10.1007/s002270050398

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

We analysed growth of the Antarctic bryozoan Melicerita obliqua (Thornely, 1924) by x-ray photography and stable isotope analysis, M. obliqua colonies form one segment per year, thus attaining maximum length of about 200 mm within 50 years. In the Weddell and Lazarev Seas, annual production/biomass ratio of M. obliqua is 0.1 yr(-1), which is in the range of other Antarctic benthic invertebrate populations. Production amounts to 3.34 mg C-org m(-2) yr(-1) and 90.6 mg ash m(-2) yr(-1) on the shelf (100 to 600 m water depth). and to 0.13 mg C-org m(-2) yr(-1) and 36.8 mg ash m(-2) yr(-1) on the slope (600 to 1250 m water depth).

引用

页码：327 / 333

页数：7

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