POPULATION-DYNAMICS OF MARINE BENTHIC INVERTEBRATES IN ANTARCTIC AND SUB-ANTARCTIC ENVIRONMENTS - ARE THERE UNIQUE ADAPTATIONS
POPULATION-DYNAMICS OF MARINE BENTHIC INVERTEBRATES IN ANTARCTIC AND SUB-ANTARCTIC ENVIRONMENTS - ARE THERE UNIQUE ADAPTATIONS
复制标题
DOI：
10.1017/s0954102093000343
复制
发表时间：
1993-09-01
影响因子：
1.6
通讯作者：
CLARKE, A
中科院分区：
文献类型：
--
作者：
BREY, T;CLARKE, A
关于南极和亚南极大型底栖动物的生长（20种）和生产力（19种）的数据是根据已发表和未发表的资料汇编的。使用一组363个数据阵列（327个非极地，26个南极，10个北极），南极，北极和非极地种群之间的生产/生物量（P/B）比的差异进行了检查。每个阵列包含年度P/B比，平均个体体重，地理纬度，水深，底层水温和名义变量TAXON（软体动物，甲壳纲，多毛类，棘皮动物）和区域（南极，北极，非极地）。P/B比值随体重、类群、温度和水深而变化。南极和北极种群的P/B比值显著低于非极地种群。对于南极种群来说，这种差异完全可以用温度和水深的影响来解释。南极许多底栖生物群落的生物量惊人地高，这可能与适应食物水平低和波动有关，特别是与低环境温度有关的维持能量需求低有关。
Data on the growth (20 species) and productivity (19 species) of Antarctic and subantarctic macrobenthos were compiled from published and unpublished sources. Differences in the production/ biomass (P/B) ratio between Antarctic, Arctic and non-polar populations were examined using a set of 363 data arrays (327 non-polar, 26 Antarctic, 10 Arctic). Each array contained annual P/B ratio, mean individual body mass, geographical latitude, water depth, bottom water temperature and the nominal variables TAXON (Mollusca, Crustacea, Polychaeta, Echinodermata) and REGION (Antarctic, Arctic, non-polar). The P/B ratio was found to vary with body mass, taxon, temperature and water depth. P/B ratios of Antarctic and Arctic populations were significantly lower than those of non-polar populations. For Antarctic populations this difference could be explained completely by the effects of temperature and water depth. The strikingly high biomass of many Antarctic benthic communities is probably related to adaptations to low and oscillating food levels, and particularly to the low maintenance energy requirement associated with the low ambient temperature.