The tunicate Salpa thompsoni ecology in the Southern Ocean. I. Distribution, biomass, demography and feeding ecophysiology
作者： E. A. Pakhomov , C. D. Dubischar , V. Strass , M. Brichta , U. V. Bathmann
DOI: 10.1007/S00227-005-0225-9
关键词: Salp 、 Biology 、 Antarctic krill 、 Biomass (ecology) 、 Ecology 、 Tunicate 、 Circumpolar deep water 、 Pelagic zone 、 Diel vertical migration 、 Population
摘要: Distribution, density, and feeding dynamics of the pelagic tunicate Salpa thompsoni have been investigated during expedition ANTARKTIS XVIII/5b to Eastern Bellingshausen Sea on board RV Polarstern in April 2001. This was German contribution field campaign Southern Ocean Global Ecosystems Dynamics Study (SO-GLOBEC). Salps were found at 31% all RMT-8 Bongo stations. Their densities samples low did not exceed 4.8 ind m−2 7.4 mg C m−2. However, maximum salp sampled with net reached 56 341 A bimodal length frequency distribution recorded over shelf, suggested two recent budding events. also confirmed by developmental stage composition solitary forms. Ingestion rates aggregate forms increased from 2.8 13.9 μg (pig) ind−1 day−1 or 0.25 2.38 salps 10 40 mm oral-atrial length, accounting for 25–75% body carbon per day. Faecal pellet production average 0.08 h−1 a pronounced diel pattern. Daily individual egestion 13 30 aggregates ranged 0.6 164 239 day−1. Assimilation efficiency 73 90% 65 76% aggregates, respectively. S. exhibited similar ingestion previously estimated Antarctic (~50°S) habitats. It has that population able develop due an intrusion into area warm Upper Circumpolar Deep Water
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sci-hub.se 参考文章(50)
Ulrich Bathmann, The expedition ANTARKTIS XVIII/5b of the research vessel "Polarstern" in 2001 = Die Expedition ANTARKTIS XVIII/5b des Forschungsschiffes "Polarstern" 2001 EPIC3Berichte zur Polar- und Meeresforschung (Reports on Polar and Marine Research), Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 407, 98 p., ISSN: 1618-3193. ,(2002) , 10.2312/BZPM_0407_2002
Herve Claustre, Mark A. Moline, Maria Vernet, Thomas K. Frazer, Joe Grzymski, Changes in Phytoplankton Assemblages Along the Antarctic Peninsula and Potential Implications for the Antarctic Food Web pp. 263- 271 ,(2001)
Sigrid Schiel, A note on the sedimentation of particulate matter in Antarctic waters during summer EPIC3Meeresforschung, 30, pp. 306-315. ,(1985)
Paul Broady, Clive Howard-Williams, William Davison, Antarctic ecosystems : models for wider ecological understanding New Zealand Natural Sciences. ,(2000)
Timothy Richard Parsons, J. D. H. Strickland, A practical handbook of seawater analysis ,(1968)
E. A. Pakhomov, V. Fuentes, I. Schloss, A. Atencio, G. B. Esnal, Beaching of the tunicate Salpa thompsoni at high levels of suspended particulate matter in the Southern Ocean Polar Biology. ,vol. 26, pp. 427- 431 ,(2003) , 10.1007/S00300-003-0494-Z
Takahisa Nemoto, Beatriz Estela Casareto, Salps of the Southern Ocean (Australian Sector) during the 1983-84 summer, with special reference to the species Salpa thompsoni, FOXTON 1961 Memoirs of National Institute of Polar Research. Special issue. ,vol. 40, pp. 221- 239 ,(1986)
Stephen Nicol, Tim Pauly, Nathan L. Bindoff, Simon Wright, Deborah Thiele, Graham W. Hosie, Peter G. Strutton, Eric Woehler, Ocean circulation off east Antarctica affects ecosystem structure and sea-ice extent Nature. ,vol. 406, pp. 504- 507 ,(2000) , 10.1038/35020053
Uwe Piatkowski, Macrozooplankton communities from Weddell Sea surface waters, Antarctica Pesquisa Antartica Brasileira (Brazilian Antarctic Research), 1 (1). pp. 1-10.. ,vol. 1, pp. 1- 10 ,(1989)
William K. de la Mare, Abrupt mid-twentieth-century decline in Antarctic sea-ice extent from whaling records Nature. ,vol. 389, pp. 57- 60 ,(1997) , 10.1038/37956