Community structure of estuarine meiobenthos
نویسندگان
چکیده
منابع مشابه
Individual, population and community level effects of subtle anthropogenic contamination in estuarine meiobenthos.
The study presented here searched for the level of taxonomic resolution required to detect the effects of low-level chronic pollution on estuarine meiobenthic communities. Meiofauna from two sites, with special attention to harpacticoid copepods, was analysed at different taxonomic levels of aggregation using uni- and multivariate methods. Adaptation processes that could buffer biodiversity dis...
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Three functionally different macrofaunal species (the filter- and/or surface deposit-feeding polychaete Hediste diversicolor, and the suspension-feeding bivalves Mya arenaria and Cerastoderma glaucum) were introduced as single- and two-species treatments into microcosms containing sandy sediment with a natural meiofaunal community. H. diversicolor is a burrowing species building a system of gal...
متن کاملBiological Criteria, Environmental Health and Estuarine Macrobenthic Community Structure
Biological criteria for defining water quality and the presence of acceptable levels of benthic resources are evaluated for estuarine macrobenthic communities of the lower Chesapeake Bay, USA. Models of expected community values as a function of salinity are presented for community biomass, numbers of individuals, species richness, percent biomass of deep-dwelling species, percent biomass of eq...
متن کاملSpatial and temporal variations in the community structure of meiobenthos in the mangrove area near the Karachi coast, Pakistan
Spatial and temporal variations in relation to environmental and biological parameters were carried out from three stations in Sands pit backwater along the coast of Karachi, Pakistan from January 1999 to December 1999. Various meiofauna taxa were identified from the sample procured during low tide. The total mean densities of meiofaunal were (30.42 ±6.81) and (3628 ± 5958) individuals per10 cm...
متن کاملPreservation of estuarine sediments for lipid analysis of biomass and community structure of microbiota.
Various methods were tested for preserving estuarine sediments in the field before biochemical analysis of the microbiota. Total microbial biomass was determined as lipid phosphate (LP), and the fatty acids of the microbial lipids were used as indicators of community structure. Control samples were sieved to remove macroinvertebrates and plant materials and were extracted immediately in the fie...
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ژورنال
عنوان ژورنال: Marine Ecology Progress Series
سال: 1984
ISSN: 0171-8630,1616-1599
DOI: 10.3354/meps018097