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Abstract:

The abundance and latitudinal and vertical (0-100 m) distribution of planktonic Foraminifera was investigated on the basis of 38 samples collected in November 1994 in the south-western Atlantic Ocean (34-60°S, along 51-56°W). Mean foraminiferal densities were 1.5 ind l-1 (range: 0.15.9 ind l-1), with highest concentrations in subsurface waters (20-50 m). Couplings between the distribution of chlorophyll-a and foraminiferal abundances were very loose. Distribution patterns of the 15 species recorded allowed six distinct areas to be defined along the transect surveyed. From north to south these are: Subtropical (dominated by Globigerinoides ruber and G. trilobus), Cold intrusion (Globigerinita uvula), Transitional-Subtropical and Transitional (Globigerina bulloides, G. quinqueloba), Subantarctic (G. quinqueloba), and Antarctic (Neogloboquadrina pachyderma, left coiling). Close comparisons with the yields of a similar data set collected in November 1993 show very good agreement. Foraminiferal thermic regimes were also similar in 1993 and in 1994, but for some species significant differences with previous data were detected. While the southwards extensions of the ranges of warm water species are fairly well circumscribed by the Brazil current-influenced waters, several foraminifers widely used as indicators and palaeoindicators of cool waters (in particular Globigerina bulloides, G. quinqueloba and Globigerinita uvula) were recorded in very significant numbers at temperatures as high as 20-24°C. The implication of these findings for hydrological, ecological, and palaeoecological interpretations is discussed.

Registro:

Documento: Artículo
Título:Planktonic Foraminifera from south-western Atlantic epipelagic waters: Abundance, distribution and year-to-year variations
Autor:Boltovskoy, E.; Boltovskoy, D.; Brandini, F.
Filiación:Depto. de Ciencias Biológicas, Fac. de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Centro de Estudos do Mar, Univ. Federal do Paraná, Av. Beira Mar s/n, Pontal do Sul, PR 83255-000, Brazil
Palabras clave:Atlantic Ocean; brazil; chlorophyll a; geographic distribution; marine environment; paleoecology; population abundance; species difference; tropics; zooplankton; abundance; annual variation; foraminifera; spatial distribution; Atlantic Ocean; Globigerina bulloides; Globigerina quinqueloba; Globigerinita uvula; Globigerinoides ruber; Globigerinoides trilobus; Neogloboquadrina pachyderma
Año:2000
Volumen:80
Número:2
Página de inicio:203
Página de fin:213
DOI: http://dx.doi.org/10.1017/S0025315499001794
Título revista:Journal of the Marine Biological Association of the United Kingdom
Título revista abreviado:J. Mar. Biol. Assoc. U.K.
ISSN:00253154
CODEN:JMBAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00253154_v80_n2_p203_Boltovskoy

Referencias:

  • Alder, V.A., Boltovskoy, D., The ecology of microzooplankton in the Weddell-Scotia confluence area: Horizontal and vertical distribution patterns (1993) Journal of Marine Research, 51, pp. 323-344
  • Bé, A.W.H., Bishop, J.K.B., Sverdlove, M.S., Gardner, W.D., Standing stock, vertical distribution and flux of planktonic Foraminifera in the Panama basin (1985) Marine Micropaleontlogy, 9, pp. 307-333
  • Bé, A.W.H., Harrison, S.M., Lott, L., Orbulina universa d'orbigny in the Indian ocean (1973) Micropaleontology, 19, pp. 150-192
  • Bé, A.W.H., Tolderlund, D.S., Distribution and ecology of living planktonic Foraminifera in surface waters of the Atlantic and indian oceans (1971) The Micropaleontology of Oceans, pp. 105-159. , (ed. B.M. Funnell and W.R. Riedel). Cambridge: Cambridge University Press
  • Beklemishev, K.V., (1969) Ecology and Biogeography of the Open Ocean, , Moscow: Nauka. [In Russian.]
  • Bernhard, J.M., Postmortem vital staining in benthic foraminifera: Duration and importance in population and distributional studies (1988) Journal of Foraminiferal Research, 18, pp. 143-146
  • Bishop, J.K.B., Ketten, D.R., Edmond, J.M., The chemistry, biology and vertical flux of particulate matter from the upper 400m of the Cape Basin in the southeast Atlantic Ocean (1978) Deep-sea Research, 25, pp. 1121-1161
  • Boltovskoy, D., Características biológicas del atlántico sudoccidental (1981) Atlas del Zooplancton del Atlántico Sudoccidental Y Métodos de Trabajo Con El Zooplancton Marino, pp. 239-251. , (ed. D. Boltovskoy). Mar del Plata: Publicación Especial INIDEP
  • Boltovskoy, D., Biogeography of the southwestern atlantic: Current problems and prospects (1986) UNESCO Technical Papers in Marine Science, 49, pp. 14-24. , (ed. A.C. Pierrot-Bults et al.). Paris: UNESCO Press
  • Boltovskoy, D., The sedimentary record of pelagic biogeography (1994) Progress in Oceanography, 34, pp. 135-160
  • Boltovskoy, D., (1998) Classification and Distribution of South Atlantic Recent Polycystine Radiolaria. Palaeontologia Electronica, 1 (2). , http://www-odp.tamu.edu/paleo/1998_2/boltovskoy/issue2.htm, 116 pp., 2.5 MB
  • Boltovskoy, D., Alder, V.A., Abelmann, A., Radiolarian sedimentary imprint in Atlantic equatorial sediments: Comparison with the flux at 853 m (1993) Marine Micropaleontology, 23, pp. 1-12
  • Boltovskoy, E., Masas de agua (características, distribución, movimientos) en la superficie del atlántico sudoeste según indicadores biológicos - Foraminíferos (1970) Publicacio n H-643, Servicio de Hidrografía Naval, pp. 1-99. , Argentina
  • Boltovskoy, E., Ecology of the planktonic foraminifera living in the surface layer of the Drake passage (1971) Micropaleontology, 17, pp. 53-68
  • Boltovskoy, E., Masas de agua en el atlántico sudoccidental (1981) Atlas del Zooplancton del Atlántico Sudoccidental Y Métoclos de Trabajo Con El Zooplancton Marino, pp. 227-237. , (ed. D. Boltovskoy). Mar del Plata: Publicación Especial INIDEP
  • Boltovskoy, E., Foraminifera (1981) Atlas del Zooplancton del Atlántico Sudoccidental Y Métodos de Trabajo Con El Zooplancton Marino, pp. 317-352. , (ed. D. Boltovskoy). Mar del Plata: Publicación Especial INIDEP
  • Boltovskoy, E., Boltovskoy, D., Foraminíferos planctónicos vivos del Mar de la Flota (Antártica) (1970) Revista Española de Micropaleontología, 2, pp. 27-44
  • Boltovskoy, E., Boltovskoy, D., Correa, N., Brandini, F., Planktonic foraminifers from the Southwestern Atlantic (30 to 60°s): Species-specific patterns in the upper 50m (1996) Marine Micropaleontology, 28, pp. 53-72
  • Boltovskoy, E., Lena, H.A., On the decomposition of the protoplasm and the sinking velocity of the planktonic foraminifers (1970) Internationale Revue der Gesamten Hydrobiologie und Hydrographie, 55, pp. 797-804
  • Brandini, F., Hydrography and characteristics of the phytoplankton in shelf and oceanic waters off southeastern Brazil during winter (July/August 1982) and summer (February/March 1984) (1990) Hydrobiologia, 196, pp. 111-148
  • Caron, D.A., Swanberg, N.R., The ecology of planktonic sarcodines (1990) Aquatic Sciences, 3, pp. 147-180
  • Hecht, A.D., Intraspecific variations in recent populations of Globigerinoides ruber and globigerinoides trilobus and their application to paleoenvironmental analysis (1974) Journal of Paleontology, 48, pp. 1217-1234
  • Heinbokel, J.F., Diel periodicities and rates of reproduction in natural population of tintinnines in the oligotrophic water off Hawaii, September 1982 (1987) Marine Microbial Food Webs, 2, pp. 1-13
  • Heinbokel, J.F., Reproductive rates and periodicities of oceanic tintinnine ciliates (1988) Marine Ecology Progress Series, 47, pp. 239-248
  • Hemleben, C., Kemmle Von Mucke, S., Foraminifera South Atlantic Zooplankton, , in press. (ed. D. Boltovskoy). Leiden: Backhuys Publishers
  • Lenz, W., Untersuchungen zur inneren hydrographischen struktur des südlichen und mittleren atlantiks (0-2000m tiefe) mit zoogeographischen anmerkungen (1975) Berichte Deutschen Wissenschaft Kommn Meeresforschung, 24, pp. 1-21
  • Olson, D.B., Podestá, G.P., Evans, R.H., Brown, O.B., Temporal variations in the separation of Brazil and Malvinas currents (1988) Deep-sea Research, 35, pp. 1971-1990
  • Peterson, R.G., Stramma, L., Upper-level circulation in the South Atlantic ocean (1991) Progress in Oceanography, 26, pp. 1-73
  • Sneath, P.H.A., Sokal, R.R., (1973) Numerical Taxonomy, , San Francisco: W.H. Freeman
  • Takahashi, K., Bé, A.W.H., Planktonic foraminifera: Factors controlling sinking speeds (1984) Deep-sea Research, 31, pp. 1477-1500
  • Thompson, G.A., Alder, V.A., Boltovskoy, D., Brandini, F., Abundance and biogeography of tintinnids (Giliophora) and associated microzooplankton in the Southwestern Atlantic ocean Journal of Plankton Research, , in press
  • Thomsen, H., Masas de agua características del océano atlántico (1962) Publicación H-623, Servicio de Hidrografía Naval, pp. 1-22. , Argentina
  • Tsuchiya, M., Talley, L.D., McCartney, M.S., Water-mass distributions in the western South Atlantic; a section from South Georgia island (54°S) northward across the equator (1994) Journal of Marine Research, 52, pp. 55-81
  • Valentin, J.L., Monteiro-Ribas, W.M., Mureb, M.A., Pessotti, E., Sur quelques zooplanctontes abondants dans l'upwelling de cabo frio (brésil) (1987) Journal of Plankton Research, 9, pp. 1195-1216
  • Vincent, E., Berger, W.H., Planktonic foraminifera and their use in paleoceanography (1981) The Oceanic Lithosphere, 7, pp. 1025-1129. , (ed. C. Emiliani). New York: Wiley
  • Wells, F.E., Seasonal patterns of abundance and reproduction of euthecosomatous pteropods off Barbados, West Indies (1976) Veliger, 18, pp. 241-248

Citas:

---------- APA ----------
Boltovskoy, E., Boltovskoy, D. & Brandini, F. (2000) . Planktonic Foraminifera from south-western Atlantic epipelagic waters: Abundance, distribution and year-to-year variations. Journal of the Marine Biological Association of the United Kingdom, 80(2), 203-213.
http://dx.doi.org/10.1017/S0025315499001794
---------- CHICAGO ----------
Boltovskoy, E., Boltovskoy, D., Brandini, F. "Planktonic Foraminifera from south-western Atlantic epipelagic waters: Abundance, distribution and year-to-year variations" . Journal of the Marine Biological Association of the United Kingdom 80, no. 2 (2000) : 203-213.
http://dx.doi.org/10.1017/S0025315499001794
---------- MLA ----------
Boltovskoy, E., Boltovskoy, D., Brandini, F. "Planktonic Foraminifera from south-western Atlantic epipelagic waters: Abundance, distribution and year-to-year variations" . Journal of the Marine Biological Association of the United Kingdom, vol. 80, no. 2, 2000, pp. 203-213.
http://dx.doi.org/10.1017/S0025315499001794
---------- VANCOUVER ----------
Boltovskoy, E., Boltovskoy, D., Brandini, F. Planktonic Foraminifera from south-western Atlantic epipelagic waters: Abundance, distribution and year-to-year variations. J. Mar. Biol. Assoc. U.K. 2000;80(2):203-213.
http://dx.doi.org/10.1017/S0025315499001794