Lengthmass relationships for macroinvertebrates in freshwater environments of Patagonia (Argentina)
Abstract
Mass-length equations were obtained for aquatic macroinvertebrates collected in di ferent streams and rivers of Patagonia, Argentina. Thirty six taxa were studied: Plecoptera (10 species), Ephemeroptera (3 species, 3 genera), Trichoptera (4 species, 1 genus), Diptera (6 genera), Coleoptera (1 species, 1 genus) Anisoptera (1 genus), Crustacea (2 species), Oligochaeta (1 genus, 1 family), Gasteropoda (1 species) and Turbellaria (1 genus). Additional relationships were obtained at the order level for Plecoptera, Ephemeroptera, Trichoptera and Diptera. Mass-length relationships were estimated by fitting the model Y = aXb linearized by logarithmic transformation) to data of dry mass vs. body length of preserved specimens. The regressions were highly significant and explained a high proportion of variation of the dependent variable, as expressed by the Coefficient of Determination (R2 = 0.580.98). The equations obtained allow the estimation of biomass of invertebrates in Patagonian running waters from measurements of linear dimensions, facilitating calculations of benthic standing crop and of secondary production.
References
ALBARIÑO, R & E BALSEIRO. 1998. Larval size and leaf conditioning in the breakdown of Nothofagus pumilio leaves by Klapopteryx kuscheli (Insecta, Plecoptera) in a South Andean Stream. Rev. Hydrobiol. 83:397-404.
BENKE, AC; AD HURYN; LA SMOCK & JB WALLACE. 1999. Length-mass relationships for freshwater macroinvertebrates in North America with particular reference to the southeastern United States. J. N. Am. Benthol. Soc. 18:308-343.
BURGHERR, P & EI MEYER. 1997. Regression analysis of linear body dimensions vs. dry mass in stream macroinvertebrates. Arch. Hydrobiol. 139:101-112.
HOWMILLER, RP. 1972. Effects of preservatives on weight of some common macrobenthic invertebrates. T. Am. Fish. Soc. 101:743-746.
MEYER, E. 1989. The relationship between body length parameters and dry mass in running water invertebrates. Arch. Hydrobiol. 117:191-203.
MISERENDINO, ML. 1999. Distribución altitudinal de especies de Trichoptera en un sistema fluvial en Patagonia. Ecología Austral 9:28-34.
MISERENDINO, ML. 2000. Distribución y variación estacional de Plecoptera en un sistema fluvial de cordillera Patagónica. Rev. Soc. Entomol. Argent. 59:149-160.
MISERENDINO, ML. 2001. Macroinvertebrate assemblages in Andean Patagonian rivers and streams: environmental relationships. Hydrobiologia 444:147-158.
MISERENDINO, ML & LA PIZZOLÓN. 2000. Macroinvertebrates of a fluvial system in Patagonia: altitudinal zonation and functional structure. Arch. Hydrobiol. 150:55-83.
MISERENDINO, ML & LA PIZZOLÓN. In press. Abundance and altitudinal distribution of Ephemeroptera in lotic Andean-Patagonic system (Argentina). In: E Domínguez (ed.). Trends in research in Ephemeroptera and Plecoptera. Proceedings of the IX International Conference of Ephemeroptera and XIII International Symposium on Plecoptera. Kluwer Academic/Plenum Publishers. New York.
NOLTE, U. 1990. Chironomid biomass determination from larval shape. Freshwat. Biol. 24:443-451.
ROGERS, LE; WT HINDS & RL BUSCHBOM. 1976. A general weight vs. length relationship for insects. Ann. Entomol. Soc. Am. 69:387-389.
SMOCK, LA. 1980. Relationships between body size and biomass of aquatic insects. Freshwat. Biol. 10:375-383.
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