Characteristic Size Distributions of Integral Benthic Communities
Characteristic Size Distributions of Integral Benthic Communities
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完整底栖群落的特征尺寸分布
DOI:
10.1139/f81-167
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发表时间:
1981
影响因子:
2.4
通讯作者:
P. Schwinghamer
中科院分区:
文献类型:
--
作者:
P. Schwinghamer
Uniform size spectra comprising bacteria through macrofauna characterize six intertidal communities when biomass concentration is expressed as a function of logarithmic intervals of organism size. Although total community biomass ranged from 70 cm3/m2 to 1283 cm3/m2, biomass distribution patterns are consistent over the entire size spectrum. Three biomass peaks, at 0.5–1 μm equivalent spherical diameter (29–81 cm3/m2), 64–125 μm (0.5–4 cm3/m2), and > 2 mm (2.4–1283 cm3/m2) were separated by typically low biomasses near 8 μm (0–0.04 cm3/m2) and 500 μm–1 mm (0–1.5 cm3/m2). The peaks correspond to bacteria, interstitial meiofauna, and macrofauna, respectively. Size discontinuities between grain colonizers and interstitial microfauna or epibenthic microflora near 8 μm, and between interstitial meiofauna and burrowing or sedentary macrofauna near 500–1000 μm, are reflected in low biomass values in these size intervals. Comparison of the data with recast published data for other locales shows that similar size ...