WINTER CILIATES IN A BRITISH-COLUMBIAN FJORD - 6 NEW SPECIES AND AN ANALYSIS OF CILIATE PUTATIVE PREY
WINTER CILIATES IN A BRITISH-COLUMBIAN FJORD - 6 NEW SPECIES AND AN ANALYSIS OF CILIATE PUTATIVE PREY
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DOI：
10.1111/j.1550-7408.1993.tb06105.x
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发表时间：
1993-09-01
影响因子：
2.2
通讯作者：
MONTAGNES, DJS
中科院分区：
文献类型：
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作者：
MARTIN, AJ;MONTAGNES, DJS
本研究首次采用原targol染色法对北太平洋浮游纤毛虫进行了定量研究。1990年2月15日和1991年2月26日，在不列颠哥伦比亚省Indian Arm的6个站点采集了2 m深度（浅斜斜以上）的3个水瓶样品。共观察到36种纤毛虫。原targolo染色标本中发现6个新种：Strombidium lynni n. sp、Strombidium taylori n. sp、Strombidium basimorphum n. sp、Strombidium ventropinum n. sp、stromilidium undinum n. sp和Urotricha cyrtonucleata n. sp。不同采样点间的纤毛虫丰度差异显著（方差分析，α = 0.05）， 1990年为550 ~ 6800个细胞/升，1991年为1800 ~ 7900个细胞/升。生物量也有显著变化（方差分析，α = 0.05）， 1990年为3.7 × 10(5)至3.3 × 10(6) pg碳/升，1991年为3.04 × 10(6)至6.97 × 10(6) pg碳/升。假定猎物分为3个大小组（1.5 ~ 5个、5 ~ 10个和10 ~ 25个）。纤毛虫丰度和生物量变化的来源尚未确定。盐度、温度、推定猎物、叶绿素a和隐卧深度与纤毛虫生物量或丰度无显著相关（α 0.05）。
This work provides the first study of North Pacific planktonic ciliates by quantitative protargol staining. Triplicate water bottle samples were collected at a depth of 2 m (above the shallow pycnocline) at six stations in Indian Arm, British Columbia, on February 15, 1990, and February 26, 1991. Thirty-six ciliate species were observed. Six new species are described from protargol-stained specimens: Strombidium lynni n. sp., Strombidium taylori n. sp., Strombidium basimorphum n. sp., Strombidium ventropinnum n. sp., Strobilidium undinum n. sp., and Urotricha cyrtonucleata n. sp.Ciliate abundance varied significantly (ANOVA, alpha = 0.05) between sampling sites, ranging from 550 to 6,800 cells/liter in 1990 and from 1,800 to 7,900 cells/liter in 199 1. Biomass also varied significantly (ANOVA, alpha = 0.05) ranging from 3.7 x 10(5) to 3.3 x 10(6) pg carbon/liter in 1990 and 3.04 x 10(6)-6.97 x 10(6) pg carbon/liter in 1991. Putative prey were enumerated in three size fractions (1.5-5 mum, 5-10 mum and 10-25 mum). The source of variation in ciliate abundance and biomass was not identified. Parameters of salinity, temperature, putative prey, chlorophyll a and pycnocline depth did not significantly correlate with ciliate biomass or abundance (alpha 0.05).