Predicting Biological Parameters of Estuarine Benthic Communities Using Models Based on Environmental Data

Este trabalho objetivou predizer parâmetros da estrutura de associacoes macrobentonicas (composicao especifica, abundância, riqueza, diversidade e equitatividade) em estuarios do Sul do Brasil, utilizando modelos baseados em dados ambientais (caracteristicas dos sedimentos, salinidade, temperaturas do ar e da agua, e profundidade). As amostragens foram realizadas sazonalmente em cinco estuarios entre o inverno de 1996 e o verao de 1998. Em cada estuario as amostras foram coletadas em areas nao poluidas, com caracteristicas semelhantes quanto a presenca ou ausencia de vegetacao, profundidade e distância da desenbocadura. Para a obtencao dos modelos de predicao, foram utilizados dois metodos: o primeiro baseado em Analise Discriminante Multipla (ADM) e o segundo em Regressao Linear Multipla (RLM). Os modelos baseados em ADM apresentaram resultados melhores do que os baseados em regressao linear. Os melhores resultados usando RLM foram obtidos para diversidade e riqueza. E possivel entao, concluir que modelos como aqui derivados podem representar ferramentas muito uteis em estudos de monitoramento ambiental em estuarios.

[1]  Cheryl Ann Butman,et al.  Animal-sediment relationships revisited: cause versus effect , 1994 .

[2]  A. Underwood.  Detection, interpretation, prediction and management of environmental disturbances: some roles for experimental marine ecology , 1996 .

[3]  A. Constable.  Ecology of benthic macro-invertebrates in soft-sediment environments : A review of progress towards quantitative models and predictions , 1999 .

[4]  P. Montagna,et al.  Small-scale spatial variation of macrobenthic community structure , 1997 .

[5]  D. Jeffrey,et al.  Benthic biological pollution indices in estuaries , 1994 .

[6]  M. T. Furse,et al.  Prediction of invertebrate communities using stream measurements , 1989 .

[7]  J. Wright,et al.  Derivation of a biological quality index for river sites: Comparison of the observed with the expected fauna , 1996 .

[8]  M. Parsons,et al.  The effect of habitat‐specific sampling on biological assessment of water quality using a predictive model , 1996 .

[9]  Jeffrey S. Levinton,et al.  Marine Biology: Function, Biodiversity, Ecology , 1995 .

[10]  J. S. Gray,et al.  The ecology of marine sediments: an introduction to the structure and function of benthic communities , 1981 .

[11]  A. Mcintyre,et al.  Methods for the study of marine benthos. IBP Handbook No.16 , 1971 .

[12]  B. Chessman,et al.  PREDICTING DIATOM COMMUNITIES AT THE GENUS LEVEL FOR THE RAPID BIOLOGICAL ASSESSMENT OF RIVERS , 1999 .

[13]  Michael Elliott,et al.  Estuaries and coasts: spatial and temporal intercomparisons , 1991 .

[14]  J. F. Wright,et al.  Α comparison of alternative techniques for prediction of the fauna of running‐water sites in Great Britain , 1999 .

[15]  D. L. Scarnecchia,et al.  Fundamentals of Ecological Modelling , 1995 .

[16]  K. Kramer.  Biomonitoring of coastal waters and estuaries , 1997 .

[17]  F. E. Egler.  Ecosystems of the World , 1960 .

[18]  S. D. Grave.  The Influence of Sedimentary Heterogeneity on Within Maerl Bed Differences in Infaunal Crustacean Community , 1999 .

[19]  B. H. Ketchum.  Estuaries and enclosed seas , 1983 .

[20]  N. Welschmeyer.  Fluorometric analysis of chlorophyll a in the presence of chlorophyll b and pheopigments , 1994 .

[21]  P. Calow.  Can ecosystems be healthy? Critical consideration of concepts , 1992 .

[22]  Jan Bogaert,et al.  Multivariate statistics for wildlife and ecology research , 2001 .

[23]  R. R. Capitoli,et al.  Estudos de ecologia bentonica na regiao estuarial da lagoa dos patos i - as comunidades bentonicas , 1978 .

[24]  C. Little.  The biology of soft shores and estuaries , 2000 .

[25]  Predicting the macroinvertebrate faunas of rivers by multiple regression of biological and environmental differences , 1999 .

[26]  A. J. Underwood,et al.  Experiments in ecology and management: Their logics, functions and interpretations , 1990 .

[27]  A. Schäfer,et al.  Gênese e Morfologia das Lagoas Costeoras do Rio Grande do Sul - Brasil , 1984 .

[28]  J. Gerritsen,et al.  Additive Biological Indices for Resource Management , 1995, Journal of the North American Benthological Society.

[29]  R. Whitlatch.  Animal-sediment relationships in intertidal marine benthic habitats: Some determinants of deposit-feeding species diversity , 1981 .

[30]  M. Elliott.  The analysis of macrobenthic community data , 1994 .

[31]  Mike T. Furse,et al.  The prediction of the macro‐invertebrate fauna of unpolluted running‐water sites in Great Britain using environmental data , 1987 .

[32]  J. N. R. Jeffers,et al.  An introduction to systems analysis, with ecological applications , 1980 .

[33]  J. Wright,et al.  The influence of seasonal and taxonomic factors on the ordination and classification of running‐water sites in Great Britain and on the prediction of their macro‐invertebrate communities , 1984 .