Respuestas especie-específicas del fitoplancton frente al pastoreo en un lago andino

Authors

  • Claudia P. Queimaliños Centro Regional Universitario Bariloche, UNC. Casilla de Correo 1336, 8400 Bariloche, Argentina

Abstract

The relationship between phyto and zooplankton was studied in a South Andes lake. The species-specific responses of the dominant algal species in relation to grazing by cladocerans were analyzed. The study was carried out at Laguna Ezquerra (Río Negro) during four months (spring and early summer) and the samples were taken biweekly. Phytoplankton was dominated by small sized species (cells smaller than 20 μm, nanoplankton) represented by microflagellates (Rhodomonas lacustris) and a colonial chrysophyte (Stichogloea doederleinii). This size fraction was the one grazed by the herbivores. Two cladoceran species were present (Ceriodaphnia dubia and Bosmina longirostris), which correspond to different body sizes and different feeding modes. The species-specific responses were determined relating the net growth rates of Stichogloea doederleinii and Rhodomonas lacustris with the densities of Ceriodaphnia dubia and Bosmina longirostris respectively. A negative relationship was obtained between Ceriodaphnia and the chrysophyte, whereas the relationship between Rhodomonas and Bosmina was neutral, attributable to the balance between the negative (direct) and positive (indirect) effects that grazers exert on their resources.

References

Balseiro, E.G. y B.E Modenutti. 1990. Zooplankton dynamics of Lake Escondido (Río Negro, Argentina) with special reference to a population of Boeckella gracilipes (Copepoda, Calanoida). Int. Revue ges. Hydrobiol. 75:475-491.

Balseiro, E.G., B.E.Modenutti y C.P. Queimaliños. 1992. The coexistence of Bosmina and Ceriodaphnia in a South Andes lake: an analysis of demographic responses. Freshw. Biol. 28:93-101.

Balseiro, E.G., C.P. Queimaliños y B.E. Modenutti. 1991. Evidence of interference of Asterionella formosa with the feeding of Bosmina longirostris: a field study in a south Andes Lake. Hydrobiologia 224:111-116.

Bergquist, A.M., S.R. Carpenter y J.C. Latino. 1985. Shifts in phytoplankton size structure and community composition during grazing by contrasting zooplankton assemblages. Limnol. Oceanogr. 30:1037-1045.

Brooks, J.L y J.I. Dodson. 1965. Predation, body size and composition of plankton. Science 150:28-35.

DeMott, W.R. 1982. Feeding selectivities and relative ingestion rate of Daphnia and Bosmina. Limnol. Oceanogr. 27:518-527.

DeMott, W.R. 1986. The role of taste in food selection by freshwater zooplankton. Oecologia 69:334-340.

Elser, J.J., M.M. Elser, N.A. MacKay y S.R. Carpenter. 1988. Zooplankton-mediated transitions between N- and P-limited alga¡ growth. Limnol. Oceanogr. 33:1-14.

Elser, J.J., N.C. Goff, N.A. MacKay, A.L. St.Amand, M.M. Elser y S.R. Carpenter. 1987. Species-specific alga] responses to zooplankton: experimental and field observations in three nutrient-limited lakes. J. Plank. Res. 9:699-717.

Elser, J.J. y C.R. Goldman. 1990. Experimental separation of the direct and indirect effects of herbivorous zooplankton on phytoplankton in a subalpine lake. Verh. Internat. Verein. Limnol. 24:493-498.

Gilbert, J.J. y K.G. Bogdan. 1984. Rotifer grazing: In situ studies on selectivity and rates,97-133. En Meyers, D.G. y J.R. Strickler (Eds.), Trophic Interactions within Aquatic Ecosystems. AAAS Selected Symposium 85, Westview Press, Boulder, Colorado, U.S.A.

Gliwicz, Z.M. 1975. Effect of zooplankton grazing on photosynthetic activity and composition of phytoplankton. Verh. Internat. Verein. Limnol. 19:1490-1497.

Hall, D.J., S.T. Threlkeld, C.W. Burns y P.H. Crowley. 1976. The size-efficiency hypothesis and the size structure of zooplankton communities. Ann. Rev. Ecol. Syst. 7:177-208.

Hairston, N.G., F.E. Smith y L.B. Slobodkin. 1960. Community structure, population control, and competition. The American Nat. 94:421-425.

Harris, G.P. 1986. Phytoplankton Ecology. Structure, Function and Fluctuation. Chapman and Hall, New York, 384 pp.

Ilmavirta, V. 1980. Phytoplankton in 35 Finnish brown-water lakes of different trophic status. Dev. Hydrobiol. 3:121-130.

Klaveness, D. 1990. Ecology of the Cryptomonadida: a first review, 105-133. En Sandgren, C.D. (Ed.) Growth and Reproductive Strategies of Freshwater Phytoplankton. Cambridge Univ. Press.

Lampert, W. 1987. Feeding and nutrition in Daphnia: 143-192. En Peters, R.H. y R. De Bernardi (Eds.) Daphnia. Mem. Ist. Ital. Idrobiol., 45, Verbania, Pallanza.

Lampert, W., W. Fleckner, H. Rai y B.E. Taylor. 1986. Phytoplankton control by grazing zooplankton: A study on the spring clear-water phase. Limnol. Oceanogr. 31:478-490.

Lehman J.T. 1980x. Nutrient cycling as an interface between algae and grazers in freshwater coin munities:251- 263. En Kerfoot, W.C.(Ed.) Ecology and Evolution of Zooplankton Communities. Press of New England, Hanover.

Lehman, J.T. 1980b. Release and cycling of nutrients between planktonic algae and herbivores. Limnol. Oceanogr. 25:620-632.

Lehman, J.T. 1984. Grazing, nutrient release, and their impacts on the structure of phytoplankton communities:49- 72. En Meyers, D.G. Y J.R. Strickler (Eds.) Trophic Interactions within Aquatic Ecosystems. AAAS Selected Symposium 85, Westview Press, Boulder.

Lehman, J.T. y C. Sandgren. 1985. Species-specific rates of growth and grazing loss among freshwater algae. Limnol. Oceanogr. 30:34-46.

Lehman, J.T. Y D. Scavia. 1982. Microscale patchiness of nutrients in plankton communities. Science 216: 729-730.

Margalef, R. 1983. Limnologia. Omega, Barcelona, 1010 pp.

Modenutti, B.E. Y E.G. Balseiro. 1991. Zooplankton de cuerpos de agua del Sistema sur del Nahuel Huapi. Biología Acuática 15:134-135.

Modenutti, B.E., E.G. Balseiro ,y P.M. Cervellini. 1993. Effect of selective feeding of Galaxias maculates (Salmoniforme, Galaxiidae) on zooplankton of a South Andes lake. Aq. Sci. 55/1:65-75.

Queimaliños, C.P. 1993. Efectos de¡ zooplankton sobre la dinámica sucesional del fitoplancton en un ambiente lacustre andino. Tesis Doctoral, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 152 pp.

Reynolds, C.S. 1984. The Ecology of Freshwater Phytoplankton. Cambridge Univ. Press, Cambridge, 365 pp.

Reynolds, C.S., J.M. Thompson, A.J.D. Ferguson y S.W. Wiseman. 1982. Loss processes in the population dynamics of phytoplankton maintained in closed systems. J. Plank. Res. 4:561-600.

Sommer, U., Z.M. Gliwicz, W. Lampert y A. Duncan. 1986. The PEG-Model of seasonal succession events in fresh waters. Arch. Hydrobiol. 106:433-471.

Sterner, R.W. 1986. Herbivores’ direct and indirect effects on algal populations. Science 231:605-607.

Sterner, R. W. 1989. The Role of Grazers in Phytoplankton Succession: 107-170. En Sommer, U. (Ed.) Plankton Ecology. Succession in Plankton Communities. Springer-Verlag, New York.

Downloads

Published

1995-06-01

How to Cite

Queimaliños, C. P. (1995). Respuestas especie-específicas del fitoplancton frente al pastoreo en un lago andino. Ecología Austral, 5(1), 065–073. Retrieved from https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/1684

Issue

Vol. 5 No. 1 (1995)

Section

Articles

License

Authors retain their rights as follows: 1) by granting the journal the right to its first publication, and 2) by registering the published article with a Creative Commons Attribution License (CC-BY 4.0), which allows authors and third parties to view and use it as long as they clearly mention its origin (citation or reference, including authorship and first publication in this journal). Authors can make other non-exclusive distribution agreements as long as they clearly indicate their origin and are encouraged to widely share and disseminate the published version of their work.