Artículo

Este artículo es de Acceso Abierto y puede ser descargado en su versión final desde nuestro repositorio
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

Vertically stratified bottle plankton samples collected in the Río de La Plata estuary (Atlantic coast of South America at ∼35° S) and in coastal waters off Mar del Plata (∼38° S) in December 1999 and November 2001 yielded up to 394 live cells l-1 of a single new nassellarian species: Lophophaena rioplatensis n. sp. (family Plagoniidae). In estuarine waters, the species was recorded at salinities as low as 15.4 p.s.u.; densities in excess of 100 cells l-1 were found at salinities ranging from 16. 9 p.s.u. These extremely high concentrations (the highest ever reported in the literature), as well as the fact that >90% of the individuals recorded contain cytoplasm, indicate that these are self-sustaining populations which thrive in the estuary (and in nearshore coastal waters), probably due to plentiful dissolved silica and an abundant food supply. Lophophaena rioplatensis is the first polycystine brackish-water species described. This finding shows that radiolarian fossils are not unequivocally associated with open-ocean conditions, but may also be useful indicators of coastal and brackish estuarine paleoenvironments.

Registro:

Documento: Artículo
Título:First record of a brackish radiolarian (Polycystina): Lophophaena rioplatensis n. sp. in the Río de la Plata estuary
Autor:Boltovskoy, D.; Kogan, M.; Alder, V.A.; Mianzan, H.
Filiación:Depto. de Ecologia, Genet. y Evol., Fac. de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1428EHA, Buenos Aires, Argentina
Consejo Nac. de Invest. Cie. y Tec., Inst. Nac. Invest. y Desarrollo P., PO BOX 175, 7600 Mar del Plata, Argentina
Museo Argentino Cie. Nat. B., Inst. Nac. Invest. y Desarrollo P., PO BOX 175, 7600 Mar del Plata, Argentina
Inst. Nac. Invest. y Desarrollo P., PO BOX 175, 7600 Mar del Plata, Argentina
Instituto Antártico Argentino, Cerrito 1248, 1010 Buenos Aires, Argentina
Palabras clave:estuary; geographical distribution; new record; new species; radiolaria; taxonomy; Rio de la Plata; South America; Nassellaria; Polycystinea
Año:2003
Volumen:25
Número:12
Página de inicio:1551
Página de fin:1559
DOI: http://dx.doi.org/10.1093/plankt/fbg107
Título revista:Journal of Plankton Research
Título revista abreviado:J. Plankton Res.
ISSN:01427873
CODEN:JPLRD
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_01427873_v25_n12_p1551_Boltovskoy.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01427873_v25_n12_p1551_Boltovskoy

Referencias:

  • Anderson, O.R., (1983) Radiolaria, 355p. , Springer Verlag, New York
  • Anderson, O.R., Nigrini, N., Boltovskoy, D., Takahashi, K., Swanberg, N., Class Polycystinea (2002) An Illustrated Guide to the Protozoa, 2nd Edn., pp. 994-1022. , Lee, J. (ed.), Society of Protozoologists, Lawrence, KS
  • Armstrong, R.A., Gilbes, F., Guerrero, R., Lasta, C., Benavidez, H., Mianzan, H., Validation of SeaWiFS-derived chlorophyll for the Río de la Plata estuary and adjacent waters (2004) Int. J. Remote Sens., , in press
  • Beers, J.R., Stewart, G.L., The vertical distribution of microzooplankton and some ecological observations (1969) J. Cons. Int. Explor. Mer, 33, pp. 30-44
  • Benson, R.N., (1966) Recent Radiolaria from the Gulf of California, 577p. , PhD Dissertation, University of Minnesota, USA
  • Bernhard, J.M., Postmortem vital staining in benthic Foraminifera: Duration and importance in population and distributional studies (1988) J. Foram. Res., 18, pp. 143-146
  • Boltovskoy, D., Holocene-upper Pleistocene radiolarian biogeography and paleoecology of the equatorial Pacific (1991) Palaeogeogr. Palaeoclimat. Palaeoecol., 86, pp. 227-241
  • Boltovskoy, D., Current and productivity patterns in the equatorial Pacific across the last glacial maximum based on radiolarian east-west and downcore faunal gradients (1992) Micropaleontology, 38, pp. 1-18
  • Boltovskoy, D., Radiolaria Polycystina (1999) South Atlantic Zooplankton, pp. 149-212. , Boltovskoy, D. (ed.), Backhuys, Leiden
  • Boltovskoy, D., Riedel, W.R., Polycystine Radiolaria from the Southwestern Atlantic ocean plankton (1980) Rev. Esp. Micropaleontol., 12, pp. 99-146
  • Boltovskoy, D., Riedel, W.R., Polycystine Radiolaria of the California Current region: Seasonal and geographic patterns (1987) Mar. Micropaleontol., 12, pp. 65-104
  • Boltovskoy, D., Alder, V.A., Abelmann, A., Annual flux of Radiolaria and other shelled plankters in the eastern equatorial Atlantic at 853 m: Seasonal variations and polycystine species-specific responses (1993) Deep-Sea Res., 40, pp. 1863-1895
  • Boltovskoy, D., Uliana, E., Wefer, G., Seasonal variations in the flux of microplankton and radiolarian assemblage compositions in the northeastern tropical Atlantic at 2195 m (1996) Limnol. Oceanogr., 41, pp. 615-635
  • Boltovskoy, E., Lena, H.A., On the decomposition of the protoplasm and the sinking velocity of the planktonic foraminifers (1970) Int. Rev. Ges. Hydrobiol. Hydrogr., 55, pp. 797-804
  • Boltovskoy, E., Boltovskoy, D., Brandini, F., Planktonic Foraminifera from south-western Atlantic epipelagic waters: Abundance, distribution and year-to-year variations (2000) J. Mar. Biol. Assoc. UK, 79, pp. 203-213
  • Bonetto, A.A., Lancelle, H.G., Calidad de las aguas del Río Paraná Medio (1981) Com. Cient. CECOAL (Argentina), 11, pp. 1-22
  • Boschi, E.E., El ecosistema estuarial del Río de la Plata (Argentina y Uruguay) (1988) Anal. Inst. Cs. Mar Limnol., 15, pp. 159-182
  • Caron, D.A., Swanberg, N.R., (1990) The Ecology of Planktonic Sarcodines, Vol. 3. Aquatic Science, 3, pp. 147-180. , CRC Press, Boca Raton, FL
  • Carreto, J.I., Negri, R.M., Benavides, H.R., Algunas características del florecimiento del fitoplancton en el frente del Río de la Plata. I: Los sistemas nutritios (1986) Rev. Incest. Des. Pesq. Mar del Plata, 5, pp. 7-29
  • Carreto, J.I., Lutz, V.A., Carignan, M.O., Cucchi Colleoni, A.D., De Marco, S.G., Hydrography and chlorophyll a in a transect from the coast to the shelf-break in the Argentinian Sea (1995) Cont. Shelf Res., 15, pp. 315-336
  • Depetris, P.J., Kempe, S., Carbon dynamics and sources in the Paraná River (1993) Limnol. Oceanogr., 38, pp. 382-395
  • De Wever, P., Dumitrica, P., Caulet, J.P., Nigrini, C., Caridroit, M., (2001) Radiolarians in the Sedimentary Record, 533p. , Gordon and Breach, Amsterdam
  • Fernández Aráoz, N.C., Pérez Seijas, G.M., Viñas, M.D., Reta, R., Asociaciones zooplanctónicas de la zona común de pesca Argentino-Uruguaya en relación con parámetros ambientales. Primavera 1986 (1991) Frente Marít., 8 A, pp. 85-99
  • Framiñán, M.B., Etala, M.P., Acha, E.M., Guerrero, R.A., Lasta, C.A., Brown, O.B., Physical characteristics and processes of the Río de la Plata estuary (1999) Estuaries of South America, their Geomorphology and Dynamics, pp. 161-194. , Perillo, G. M. E., Piccolo, M. C. and Pino-Quivira, C. (eds), Springer, Berlin
  • Guerrero, R.A., Lasta, C., Acha, M., Mianzan, H., Framiñan, M., (1997) Atlas Hidrográfico del Río de la Plata, 109p. , Com. Admin. Río de la Plata, Buenos Aires
  • Kling, S.A., Radiolaria (1978) Introduction to Marine Micropaleontology, pp. 203-244. , Haq, B. U. and Boersma, A. (eds), Elsevier, New York
  • Kruglikova, S.B., Rasprostranenie radiolyarii v pliotsen-chetvertichnykh otlozheniyakh glubokovodnykh kotlovin Atlanticheskogo Okeana (1988) Morskaya Stratigrafiya i Mikropaleontologiya, pp. 160-167. , Krasheninnikov, V. A. and Basov, I. A. (eds), Nauka, Moscow
  • Kruglikova, S.B., Certain aspects of radiolarian data as evidence of the paleoenvironment (1989) Palaeogeogr. Palaeoclimat. Palaeoecol., 69, pp. 303-320
  • Kruglikova, S.B., Struktura assosiatzii radiolyarii-polysistin na vidovom i nadvidovom urovne i palesreda (1995) Sovremennyi i Iskopaemyi Mikroplankton Mirovogo Okeana, , Barash, M. S. (ed.), Nauka, Moscow
  • Lange, C.B., Spatial and seasonal variations of diatom assemblages off the Argentinian coast (Southern Western Atlantic) (1985) Oceanol. Acta, 8, pp. 361-369
  • Lucas, A.J., Guerrero, R., Mianzan, H., Acha, E.M., Lasta, C., Coastal low salinity intrusions between Mar Chiquita and Necochea: Evidence for an intermittent connection with Río de la Plata or El Rincón (1999) Fourth LOICZ Open Science Meeting and XI Coloquio Argentino de Oceanografia, , 10-18 November, Bahía Blanca, Argentina
  • McMillen, K.J., Radiolarian ratios and the Pleistocene-Holocene boundary (1979) Trans. Gulf Coast Assoc. Geol. Soc., 29, pp. 298-301
  • Mianzan, H., Lasta, C., Acha, E., Guerrero, R., Macchi, G., Bremec, C., Río de la Plata estuary: The ecological profile of a large salt wedge (2001) Coastal Marine Ecosystems of Latin America, pp. 185-204. , Seeliger, U. and Kjerve, B. (eds), Springer, Berlin
  • Miller, M.C., The relic fauna of Lake Merced, San Francisco (1958) J. Mar. Res., 17, pp. 375-382
  • Negri, R.M., Akselman, R.A., Benavides, H.R., Floración excepcional de un dinoflagelado en aguas de Argentina y Uruguay (1992) Frente Marít., 11, pp. 115-122
  • Nishimura, A., Nakaseko, K., Okuda, Y., A new coastal water radiolarian assemblage recovered from sediment samples from the Antarctic Ocean (1997) Mar. Micropaleontol., 30, pp. 29-44
  • Palmer, A.A., Cenozoic radiolarians as indicators of neritic versus oceanic conditions in continental-margin deposits: U.S. Mid-Atlantic Coastal Plain (1986) Palaios, 1, pp. 122-132
  • Pearse, A.S., (1950) The Emigrations of Animals from the Sea, , Dryden, New York
  • Pennack, R.W., Introductory essay (1989) Fresh-water Invertebrates of the United States, , Pennack R. W. (ed.), Wiley, New York
  • Petrushevskaya, M.G., Radiolyarii Nassellaria v planktone Mirovogo Okeana (1971) Issledovaniya Fauny Morei, 9 (17), 420p. , Nauka, Leningrad
  • Petrushevskaya, M.G., (1981) Radiolyarii Otryada Nassellaria Mirovogo Okeana, 405p. , Nauka, Leningrad
  • Piola, A.R., García, O.A., (1993) Atlas Oceanográfico de la Cuenca Argentina Occidental y de la Plataforma Continental Lindera, , Servicio de Hidrografía Naval (Argentina), Publ. H-670
  • Piola, A.R., Rivas, A.L., Corrientes en la plataforma continental (1997) El Mar Argentino y sus Recursos Pesqueros. 1. Antecedentes Históricos de las Exploraciones en el Mar y las Características Ambientales, pp. 119-132. , Boschi, E. (ed.), INIDEP, Mar del Plata
  • Swanberg, N.R., Bjørklund, K.R., The radiolarian fauna of western Norwegian fjords: Patterns of abundance in the plankton (1986) Mar. Micropaleontol., 11, pp. 231-241
  • Swanberg, N.R., Bjørklund, K.R., Radiolarians in the plankton of some fjords in western and northern Norway: The distribution of species (1987) Sarsia, 72, pp. 231-244
  • Swanberg, N.R., Eide, L.K., The radiolarian fauna at the ice edge in the Greenland Sea during summer, 1988 (1992) J. Mar. Res., 50, pp. 297-320

Citas:

---------- APA ----------
Boltovskoy, D., Kogan, M., Alder, V.A. & Mianzan, H. (2003) . First record of a brackish radiolarian (Polycystina): Lophophaena rioplatensis n. sp. in the Río de la Plata estuary. Journal of Plankton Research, 25(12), 1551-1559.
http://dx.doi.org/10.1093/plankt/fbg107
---------- CHICAGO ----------
Boltovskoy, D., Kogan, M., Alder, V.A., Mianzan, H. "First record of a brackish radiolarian (Polycystina): Lophophaena rioplatensis n. sp. in the Río de la Plata estuary" . Journal of Plankton Research 25, no. 12 (2003) : 1551-1559.
http://dx.doi.org/10.1093/plankt/fbg107
---------- MLA ----------
Boltovskoy, D., Kogan, M., Alder, V.A., Mianzan, H. "First record of a brackish radiolarian (Polycystina): Lophophaena rioplatensis n. sp. in the Río de la Plata estuary" . Journal of Plankton Research, vol. 25, no. 12, 2003, pp. 1551-1559.
http://dx.doi.org/10.1093/plankt/fbg107
---------- VANCOUVER ----------
Boltovskoy, D., Kogan, M., Alder, V.A., Mianzan, H. First record of a brackish radiolarian (Polycystina): Lophophaena rioplatensis n. sp. in the Río de la Plata estuary. J. Plankton Res. 2003;25(12):1551-1559.
http://dx.doi.org/10.1093/plankt/fbg107