Longitudinal Distribution of Zooplankton at 10.5 ° N in the Northeastern Pacific
作者： Jung-Hoon Kang , Kyu-Hee Cho , Ju-Won Son , Woong-Seo Kim
DOI: 10.4217/OPR.2007.29.4.283
关键词:
摘要: We investigated the longitudinal variations in zooplankton abundances and their related physicochemical properties at nine stations located between 136˚W 128˚W 10.5˚N northeastern Pacific summer 2004. Temperature, salinity, inorganic nutrients, chlorophyll-a (hereafter chl-a) (＞200 ㎛) were sampled within depth from surface to 200 m 1˚ longitude intervals. Zooplankton samples vertically collected two intervals m, consisting of mixed lower layers (thermocline~200 m). Longitudinal distributional pattern hydrological parameters (especially salinity) was physically influenced by intensity westward geostrophic current passage relating NEC (North Equatorial Current). Data survey showed clear zonal distributions (temperature, salinity nutrients). However, spatial patterns chl-a concentrations mostly independent parameters. The peaks abundance layer characterized different controlling factors such as bottom-up control nutrients (129˚W) accumulation increment friction force taxonomic interrelationship (133˚ 134˚W). Divergence-related upwelling caused introduction into waters leading concentration (129˚W). Increased relation reduced flow rates currents drifting eastern study area Besides, high correlation immature copepods carnivorous groups chaetognaths cyclopoids also possibly contributed enhanced total (p＜0.05). community divided three (A, B, C) which consecutively included peak (129˚W), western 134˚W) nutrient but low (136˚W). Moreover, Group B corresponded movement saline (＜33.6 psu) 128 132˚W. In summary, factors: increased relationships among 134˚W), mismatch chlorophyll (136˚W) during period.
koreascience.or.kr参考文章(16)
Richard T. Barber, John H. Ryther, Organic chelators: Factors affecting primary production in the cromwell current upwelling Journal of Experimental Marine Biology and Ecology. ,vol. 3, pp. 191- 199 ,(1969) , 10.1016/0022-0981(69)90017-3
Hitoshi Yamashita, Kozo Takahashi, Naoki Fujitani, Zonal and vertical distribution of radiolarians in the western and central Equatorial Pacific in January 1999 Deep-sea Research Part Ii-topical Studies in Oceanography. ,vol. 49, pp. 2823- 2862 ,(2002) , 10.1016/S0967-0645(02)00060-7
Per R. Flood, Don Deibel, Claude C. Morris, Filtration of colloidal melanin from sea water by planktonic tunicates Nature. ,vol. 355, pp. 630- 632 ,(1992) , 10.1038/355630A0
BPV Hunt, EA Pakhomov, CD McQuaid, None, Short-term variation and long-term changes in the oceanographic environment and zooplankton community in the vicinity of a sub-Antarctic archipelago Marine Biology. ,vol. 138, pp. 369- 381 ,(2001) , 10.1007/S002270000467
Robert Le Borgne, Mesozooplankton biomass and composition in the equatorial Pacific along 180 Journal of Geophysical Research. ,vol. 108, pp. 8143- ,(2003) , 10.1029/2000JC000745
Michael R. Roman, Hans G. Dam, Anne L. Gauzens, Juanita Urban-Rich, David G. Foley, Tommy D. Dickey, Zooplankton variability on the equator at 140°W during the JGOFS EqPac study Deep Sea Research Part II: Topical Studies in Oceanography. ,vol. 42, pp. 673- 693 ,(1995) , 10.1016/0967-0645(95)00025-L
M. Blackburn, R. M. Laurs, R. W. Owen, B. Zeitzschel, Seasonal and areal changes in standing stocks of phytoplankton, zooplankton and micronekton in the eastern tropical pacific Marine Biology. ,vol. 7, pp. 14- 31 ,(1970) , 10.1007/BF00346804
M.R Roman, H.G Dam, R Le Borgne, X Zhang, Latitudinal comparisons of equatorial Pacific zooplankton Deep-sea Research Part Ii-topical Studies in Oceanography. ,vol. 49, pp. 2695- 2711 ,(2002) , 10.1016/S0967-0645(02)00054-1
Richard T. Barber, Marta P. Sanderson, Steven T. Lindley, Fei Chai, Jan Newton, Charles C. Trees, David G. Foley, Francisco P. Chavez, Primary productivity and its regulation in the equatorial Pacific during and following the 1991–1992 El Niño Deep Sea Research Part II: Topical Studies in Oceanography. ,vol. 43, pp. 933- 969 ,(1996) , 10.1016/0967-0645(96)00035-5
Eun Jin Yang, Joong Ki Choi, Jung-Ho Hyun, Distribution and structure of heterotrophic protist communities in the northeast equatorial Pacific Ocean Marine Biology. ,vol. 146, pp. 1- 15 ,(2004) , 10.1007/S00227-004-1412-9