DYNAMICS OF FINE BENTHIC ORGANIC MATTER AND ITS EFFECT ON COMMUNITY STRUCTURE OF BENTHIC INVERTEBRATES IN TAMA RIVER

2006 ◽  
Vol 62 (1) ◽  
pp. 74-84
Author(s):  
Akihiko HOSOMI ◽  
Chihiro YOSHIMURA ◽  
Fumiyuki NAKAJIMA ◽  
Hiroaki FURUMAI
Keyword(s):  
Organic Matter ◽  
Community Structure ◽  
Benthic Invertebrates ◽  
Benthic Organic Matter

Relationships between Acidity and Benthic Invertebrates of Low-Order Woodland Streams in the Adirondack Mountains, New York

1990 ◽  
Vol 47 (7) ◽  
pp. 1318-1329 ◽  
Author(s):  
Michael E. Smith ◽  
Barbara J. Wyskowski ◽  
Carol M. Brooks ◽  
Charles T. Driscoll ◽  
Christina C. Cosentini
Keyword(s):  
New York ◽  
Organic Matter ◽  
Benthic Invertebrates ◽  
Sampling Site ◽  
Adirondack Mountains ◽  
Regression Analyses ◽  
Acidic Site ◽  
Stream Invertebrates ◽  
Benthic Organic Matter ◽  
Low Order

Benthic invertebrates were collected during January, April, July, and October 1985 from three low-order woodland streams in the Adirondack Mountains, New York to evaluate relationships between acidity and stream invertebrates. Total invertebrate generic richness, generic diversity, Ephemeroptera density and richness, collector–gatherer richness, and scraper density and richness were positively correlated to stream pH. Ephemeroptera and Naididae (Oligochaeta) were absent from the acidic sampling site. Enchytraeid oligochaetes and Turbellaria were collected at all sites, but in significantly higher densities at the acidic site. Elmid beetles (Optioservus ovalis, Oulimnius latiusculus, Promoresia tardella), mayflies (Cinygmula and Baetis) and caddisflies (Glossosoma, Apatania, and Micrasema) were abundant at the sites where pH was highest and were absent from other sampling locales. Total invertebrate density was not decreased at the acidic site when compared with most other sampling sites. Multiple regression analyses revealed that pH and benthic organic matter were the two most important measured stream parameters in describing the variance of invertebrate communities in the three study streams.

scholarly journals Impacts of long-term plant residue management on soil organic matter quality, Pseudomonas community structure and disease suppressiveness

2019 ◽  
Vol 135 ◽  
pp. 396-406 ◽  
Author(s):  
Bryony E.A. Dignam ◽  
Maureen O'Callaghan ◽  
Leo M. Condron ◽  
Jos M. Raaijmakers ◽  
George A. Kowalchuk ◽  
...  
Keyword(s):  
Organic Matter ◽  
Community Structure ◽  
Soil Organic Matter ◽  
Residue Management ◽  
Plant Residue ◽  
Organic Matter Quality ◽  
Soil Organic Matter Quality

scholarly journals Microbial Community Structure Affects Marine Dissolved Organic Matter Composition

2016 ◽  
Vol 3 ◽  
Author(s):  
Elizabeth B. Kujawinski ◽  
Krista Longnecker ◽  
Katie L. Barott ◽  
Ralf J. M. Weber ◽  
Melissa C. Kido Soule
Keyword(s):  
Organic Matter ◽  
Community Structure ◽  
Microbial Community ◽  
Dissolved Organic Matter ◽  
Microbial Community Structure ◽  
Organic Matter Composition

scholarly journals Effects of settling organic matter on the bioaccumulation of cadmium and BDE-99 by Baltic Sea benthic invertebrates

2008 ◽  
Vol 65 (3) ◽  
pp. 264-281 ◽  
Author(s):  
Maria H. Thorsson ◽  
Jenny E. Hedman ◽  
Clare Bradshaw ◽  
Jonas S. Gunnarsson ◽  
Michael Gilek
Keyword(s):  
Organic Matter ◽  
Baltic Sea ◽  
Benthic Invertebrates

The distribution and turnover of benthic organic matter in a lowland river: influence of hydrology, seston load and impoundment

2002 ◽  
Vol 18 (2) ◽  
pp. 107-122 ◽  
Author(s):  
S.C. Wanner ◽  
K. Ockenfeld ◽  
M. Brunke ◽  
H. Fischer ◽  
M. Pusch
Keyword(s):  
Organic Matter ◽  
Lowland River ◽  
Benthic Organic Matter

Effects of sediment nutrients and depth on small-scale spatial heterogeneity of submersed macrophyte communities in Lake Pleasant, Pennsylvania

2004 ◽  
Vol 61 (8) ◽  
pp. 1493-1502 ◽  
Author(s):  
R K Johnson ◽  
M L Ostrofsky
Keyword(s):  
Organic Matter ◽  
Community Structure ◽  
Spatial Heterogeneity ◽  
Environmental Gradients ◽  
Small Scale ◽  
Sediment Characteristics ◽  
Available Nitrogen ◽  
Total N ◽  
Available N ◽  
Prevailing Paradigm

Sediment concentrations of total and available nitrogen (N), phosphorus (P), and potassium (K) and organic matter from the littoral zone of Lake Pleasant, Pennsylvania, were highly variable. Only organic matter and total N were correlated with depth, however. This result suggests the existence of more complex environmental gradients than the prevailing paradigm of monotonic changes in sediment characteristics with increasing depth. The spatial heterogeneity of submersed aquatic plant communities was significantly correlated with depth, and available N and P. Canonical correspondence analysis demonstrated that these three factors explained 38% of the variance in community structure. Other sediment characteristics (available K, organic matter, and total N, P and K) were not significant by themselves, but all variables combined explained 63% of community-structure variance. Cluster analysis identified species or groups of species typical of endpoints on the depth versus nutrient axes. Myriophyllum exalbescens was typical of deep sites with relatively nutrient-rich sediments, whereas deep nutrient-poor sites were dominated by Vallisneria americana and Megalodonta beckii. Shallow nutrient-rich sites were dominated by several species of Potamogeton and Elodea canadensis, and shallow nutrient-poor sites were dominated by Heteranthera dubia and Najas flexilis. These results demonstrate the importance of sediment characteristics in determining macrophytes' community structure within lakes.

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