Population dynamics of four dominant copepods in Prydz Bay, Antarctica, during austral summer from 1999 to 2006

Guang Yang; Chaolun Li; Song Sun

doi:10.1007/s00343-011-0230-4

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Population dynamics of four dominant copepods in Prydz Bay, Antarctica, during austral summer from 1999 to 2006

OriginalPaper | Updated：2023-05-16

- Population dynamics of four dominant copepods in Prydz Bay, Antarctica, during austral summer from 1999 to 2006
- Population dynamics of four dominant copepods in Prydz Bay, Antarctica, during austral summer from 1999 to 2006
- 海洋湖沼学报（英文） 2011年29卷第5期页码：1065-1074
- Affiliations：
  
  1. Key Laboratory of Marine Ecology and Environmental Sciences Institute of Oceanology Chinese Academy of Sciences
  2. Graduate University of Chinese Academy of Sciences
  3. Jiaozhou Bay Marine Ecosystem Research Station Institute of Oceanology Chinese Academy of Sciences
- Author bio：
- Funds：
  
  Supported by National Key Technology Research and Development Program of China (No. 2006BAB18B07), the National Natural Science Foundation of China (No. 40821004), National Polar Project of China (No. JDZX20110016), and the China International Polar Year (IPY) Program
- DOI：10.1007/s00343-011-0230-4
  中图分类号：
- 网络首发：2011-08-08，
  
  纸质出版：2011
- Accepted：
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Population dynamics of four dominant copepods in Prydz Bay, Antarctica, during austral summer from 1999 to 2006[J]. 海洋湖沼学报（英文）, 2011,29(5):1065-1074.

Yang, G., Li, C. & Sun, S. Population dynamics of four dominant copepods in Prydz Bay, Antarctica, during austral summer from 1999 to 2006., Chin. J. Ocean. Limnol. 29, 1065–1074 (2011). https://doi.org/10.1007/s00343-011-0230-4
Population dynamics of four dominant copepods in Prydz Bay, Antarctica, during austral summer from 1999 to 2006[J]. 海洋湖沼学报（英文）, 2011,29(5):1065-1074. DOI： 10.1007/s00343-011-0230-4.

Yang, G., Li, C. & Sun, S. Population dynamics of four dominant copepods in Prydz Bay, Antarctica, during austral summer from 1999 to 2006., Chin. J. Ocean. Limnol. 29, 1065–1074 (2011). https://doi.org/10.1007/s00343-011-0230-4 DOI：

摘要

Abstract

Population dynamics of four dominant Antarctic copepods

Calanoides acutus

Calanus propinquus

Metridia gerlachei and Rhincalanus gigas were studied based on zooplankton samples collected in the Prydz Bay during austral summer from 1999 to 2006. We found that C. acutus was the most abundant species among these four copepods

followed by C. propinquus

M. gerlachei and R. gigas. R. gigas occurred mainly in the warmer oceanic regions and showed distribution patterns discrete from the other three species

whose distribution in the whole survey area overlapped. By December 15th (about one month before our sampling) of the years 1999

2003 and 2006

sea ice retreated earlier and polynyas existed in the neritic region one month before sampling. These periods were characterized by numerical dominance of C. acutus

C. propinquus and M. gerlachei

elevated proportions of Copepodite I and Copepodite II stages especially in the neritic region. While for the years 2000

2002

and 2005

the ice edge located more northerly and polynyas did not exist in the neritic region

the copepods abundance was lower

indicating poor recruitment. Population structure of R. gigas was mainly composed of advanced stages Copepodite V and female during all cruises. Log10 (x+1) transformed densities of C. acutus

C. propinquus and M. gerlachei showed positive correlation with temperature and chlorophyll a concentration

while mean population stages of these copopods were negatively correlated with these environmental variables. Younger copepodite stages of C. acutus

C. propinquus and M. gerlachei appeared more often in neritic regions. We confirmed that the polynyas had a great contribution to phytoplankton blooms

which promote copepods reproduction and recruitment success. The study suggested that population dynamics of the four copepods have good correspondence with sea ice and polynya variations during all cruises of the Prydz Bay.

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