In-situ studies of microzooplankton grazing pressure on phytoplankton in Jiaozhou Bay, China

Wang Yong; Sun Hekun; Zhou Yi

doi:10.1007/BF02842588

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In-situ studies of microzooplankton grazing pressure on phytoplankton in Jiaozhou Bay, China

OriginalPaper | Updated：2023-05-16

- In-situ studies of microzooplankton grazing pressure on phytoplankton in Jiaozhou Bay, China
- In-situ studies of microzooplankton grazing pressure on phytoplankton in Jiaozhou Bay, China
- 海洋湖沼学报（英文） 2004年22卷第2期页码：162-165
- Affiliations：
  
  1. Qingdao Environmental Protection Bureau
  2. Institute of Oceanology Chinese Academy of Sciences
- Author bio：
- Funds：
  
  Project No KZCX3-SW-214 supported by Chinese Academy of Sciences.
- DOI：10.1007/BF02842588
  中图分类号：
- 纸质出版：2004
- Accepted：
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In-situ studies of microzooplankton grazing pressure on phytoplankton in Jiaozhou Bay, China[J]. 海洋湖沼学报（英文）, 2004,22(2):162-165.

Yong, W., Hekun, S. & Yi, Z. In-situ studies of microzooplankton grazing pressure on phytoplankton in Jiaozhou Bay, China., Chin. J. Ocean. Limnol. 22, 162–165 (2004). https://doi.org/10.1007/BF02842588
In-situ studies of microzooplankton grazing pressure on phytoplankton in Jiaozhou Bay, China[J]. 海洋湖沼学报（英文）, 2004,22(2):162-165. DOI： 10.1007/BF02842588.

Yong, W., Hekun, S. & Yi, Z. In-situ studies of microzooplankton grazing pressure on phytoplankton in Jiaozhou Bay, China., Chin. J. Ocean. Limnol. 22, 162–165 (2004). https://doi.org/10.1007/BF02842588 DOI：

摘要

Abstract

Preliminary studies on microzooplankton grazing were conducted with dilution method in Jiaozhou Bay from summer 1998 to spring 1999. Four experiments were carried out at St. 5 located at the center of Jiaozhou Bay. Chlorophyll a concentrations were consistently dominated by netphytoplankton (net-

>20μm)

except during the autumn 1998 cruise

when they were dominated by nanophytoplankton(nano-

2–20μm). The contribution of picophytoplankton (pico-

<2μm) to total chlorophyll a concentrations (<200μm) varied considerably between cruises. Instantaneous growth coefficients(u) of phytoplankton varied from 0.098 to 1.947d−1

with mean value of 0.902d−1. Instantaneous coefficients(g) of microzooplankton grazing on phytoplankton ranged from 0.066 to 0.567d−1

mean value of 0.265d−1

which was equivalent to daily lose of 21.9% of the initial standing stock and 58.1% of the daily potential production.

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references

Froneman, P. W., R. Perissinotto, C. D. McQuaid, 1996. Seasonal variations in microzooplankton grazing in the region of the Subtropical Converengce.Mar. Biol. 126:433–442.

Gallegos, C. L., 1989. Microzooplankton grazing on phytoplankton in the Rhode River, Maryland: nonlinear feeding kinetics.Mar. Ecol. Prog. Ser. 57:23–33.

Gifford, D. J., 1988. Impact of grazing by microzooplankton in the Northwest Arm of Halifax Harbour, Nova Scotia.Mar. Ecol. Prog. Ser. 47:249–258.

Landry, M. R., R. P. Hassett, 1982. Determining the grazing im-pact of marine microzooplankton.Mar. Biol. 67:283–288.

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Verity, P. G., K. S. Diane, E. S. Michael, R. N. James, 1993. Grazing, growth and mortality of microzooplankton during the 1989 North Atlantic spring bloom at 47°N, 18°W.Deep-Sea Res. 40(9): 1793–1814.

Welschmeyer, N. A., 1994. Fluorometeric analysis of chlorophyll a in the presence of chil-b and phaeopigments.Limnol. Oceanogr. 39: 1985–1992.

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