References
- Barthel, D., 1988: On the ecophysiology of the sponge Halichondria punicea in Kiel Bight. II. Biomass, production, energy budget and integration in environmental processes. — Mar. Ecol. Prog. Ser. 43: 87–93.
- Fell, P. E. & Lewandrowski, K. B., 1983: Seasonal fluctuations in standing stock biomass of Halicondria sp (Porifera: Demospongia) within a New England eelgrass community. — J. Exp. Mar. Biol. Ecol. 66: 11–23.
- Frost, T. M., 1987: Porifera. — In: Pandian, T. J. & Vernberg, F. J. (eds.): Animal Energetics: 2753, Vol. I. Academic Press, New York.
- Frost, T. M., Nagy, G. S., Gilbert, J. J., 1982: Population dynamics and standing biomass of the freshwater sponge Spongilla lacustris. — Ecology 63 (5): 1203–1210.
- Frost, T. M. & Williamson, C. E., 1980: In situ determination of the effect of symbiotic algae on the growth of the freshwater sponge Spongilla lacustris. — Ecology 61 (6): 1361–1370.
- Harsha, R. E., Francis, J. C, Poirrier, M. A., 1983: Water temperature: a factor in the seasonality of two freshwater sponge species, Ephyda- tia fluviatilis and Spongilla alba. — Hydrobiologia 102: 145–150.
- Hoppe, W. F., 1988: Growth, regeneration and predation in three species of large coral reef sponges. — Mar. Ecol. Prog. Ser. 50 (1–2): 117–125.
- Jones, M. L. & Rutzler, K., 1975: Invertebrates of Upper Chamber, Gatún Locks, Panama canal, with emphasis on Trochospongilla leidii (Porifera). — Mar. Biol., Berlin 33: 57–66.
- Mann, K. H., Britton, A., Kowalczewski, T. J., Mathews, C. P. & McDonald, I., 1972: Productivity and energy flow at all trophic levels in river Thames, England. — In: Kajak, Z. & Hill-Bricht-Ilkowska, M. (eds.): Productivity Problems of Fresh-waters: pp. 579–596. PWN Polish Sci., Warsaw, Poland.
- Melão, M. G. G. & Rocha, O., 1997: Symbiotic association of Metania spinata (Porifera, Metaniidae) with a Chlorophyceae. — Brazilian J. Ecol. 1(2): 1–6.
- Rader, R. B. & Winget, R. N., 1985: Seasonal growth rate and population dynamics of a freshwater sponge. — Hydrobiologia 123: 171–176.
- Reiswig, H. M., 1973: Population dynamics of three jamaican Demospongiae. — Bull. Mar. Sci. 23: 191–226.
- Reiswig, H. M. 1974: Water transport, respiration and energetic of three tropical marine sponges. — J. Exp. Mar. Biol. Ecol. 14: 231–249.
- Reiswig, H. M. 1981: Partial carbon and energy budgets of the bacteriosponge Verongia fistularis (Porifera: Demospongiae) in Barbados. — Mar. Ecol. 2: 273–293.
- Schwoerbel, J., 1975: Métodos de hidrobiologia. — H. Blume, Madri, 262 pp.
- Simpson, T. L. & Gilbert, J. J., 1974: Gemmulation, gemmule hatching and sexual reproduction in fresh-water sponges. II. Life cycle events in young larva produced sponges of Spongilla lacustris and an unidentified species. — Trans. Am. Microsc. Soc. 93: 39–45.
- Stone, A. R., 1970: Growth and reproduction of Hymeniacidon perveler (Montagu) in Langstone Harbour, Hampshire. — J. Zool. 161: 443–459.
- Winberg, G. G., 1971: Methods for the estimation of production of aquatic animals. — Academic Press, London, 175 pp.