MICROBIAL COMMUNITIES FROM THE SEA ICE AND ADJACENT WATER COLUMN AT THE TIME OF ICE MELTING IN THE NORTHWESTERN PART OF THE WEDDELL SEA

被引：16

作者：

MATHOT, S

BECQUEVORT, S

LANCELOT, C

机构：

[1] Groupe de Microbiologic des Milieux Aquatiques, University of Brussels, Brussels

来源：

POLAR RESEARCH | 1991年 / 10卷 / 01期

关键词：

D O I：

10.1111/j.1751-8369.1991.tb00652.x

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Microbial composition - including microalgae, bacteria and protozoans - and potential metabolic activity of its autotrophic compartment were measured in December 1988 in several micro-environments that characterise the North-West Sector of the marginal area of the Weddell Sea; infiltration and band assemblages of ice floes and adjacent waters were investigated. At the time of ice melting, a shift from a diatom dominated population (ice) to a flagellate dominated population (water column) was observed. Nevertheless, this shift was not due to an "inability" of the ice-diatoms to grow in the water colum. Macrograzing and/or sedimentation are suggested as possible causes of thc disappearance of diatoms during ice melting. The remaining small autotrophic forms released by the ice would constitute a significant seeding stock for the growth of ice-edge blooms.

引用

页码：267 / 275

页数：9

共 38 条

[1]

Ackley S.F., Buck K.R., Taguchi S., Standing crop of algae in the sea ice of the Weddell Sea region., Deep-Sea Res., 26 A, pp. 269-282, (1979)

[2]

Boyd C.M., Heyraud M., Boyd C.N., Feeding of the Antarctic krill, Euphausia superba. J. Crustacean Biol., 4, pp. 123-141, (1984)

[3]

Buck K.R., Bolt P.A., Garrison D.L., Phagotrophy and fecal pellet production by an athecate dinoflagellate in Antarctic sea ice., Marine Ecology Progress Series, 60, pp. 75-84, (1990)

[4]

Cuzin-Roudy J., Schalk P.H., Macrozooplankton ‐Biomass, development and activity. Pp. 146‐159, The Expedition Antarktis Vll/3 (EPOS LEG 2) of R/V “Polarstern” in 1988/ 89, (1989)

[5]

Edler L., Recommendations for marine biological studies in the Baltic Sea ‐ Phytoplankton and Chlorophyll., Baltic Marine Biologists, 5, pp. 1-38, (1979)

[6]

Fransz H.G., Vernal abundance, structure and development of epipelagic copepod populations of the Eastern Weddell Sea (Antarctica)., Polar Biol., 9, pp. 107-114, (1988)

[7]

Fryxell G.A., Kendrick G.A., Austral spring micro‐algae across the Weddell Sea ice edge: spatial relationships found along a northward transect during AMERIEZ 83., Deep-Sea Res., 35, pp. 1-20, (1988)

[8]

Garrison D.L., Buck K.R., Sea‐ice algal communities in the Weddell Sea: species composition in ice and plankton assemblages. Pp. 103‐122, Marine Biology of Polar Regions and Effects of Stress on Marine Organisms., (1985)

[9]

Garrison D.L., Buck K.R., Organism losses during ice melting: a serious bias in sea ice community studies., Polar Biol., 6, pp. 237-239, (1986)

[10]

Garrison D.L., Buck K.R., (a): Protozooplankton in the Weddell sea, Antartica: Abundance and distribution in the ice‐edge zone., Polar Biol., 9, pp. 341-351, (1989)

← 1 2 3 4 →