scholarly journals Density data for Lake Ontario benthic invertebrate assemblages from 1964 to 2018

Ecology ◽  
2021 ◽  
Author(s):  
Lyubov E. Burlakova ◽  
Alexander Y. Karatayev ◽  
Allison R. Hrycik ◽  
Susan E. Daniel ◽  
Knut Mehler ◽  
...  
Keyword(s):  
Lake Ontario ◽  
Benthic Invertebrate ◽  
Density Data ◽  
Invertebrate Assemblages

Benthic invertebrate assemblages of Delaware Bay

1978 ◽  
Vol 45 (1) ◽  
pp. 65-78 ◽  
Author(s):  
D. Maurer ◽  
L. Watling ◽  
P. Kinner ◽  
W. Leathem ◽  
C. Wethe
Keyword(s):  
Benthic Invertebrate ◽  
Delaware Bay ◽  
Invertebrate Assemblages

Diversity patterns in subarctic stream benthic invertebrate assemblages from the Sahtu Settlement Area, Northwest Territories, Canada

2015 ◽  
Vol 1 (1) ◽  
pp. 9-25 ◽  
Author(s):  
K. Vinke ◽  
A.S. Medeiros ◽  
D.J. Giberson
Keyword(s):  
Northwest Territories ◽  
Woody Debris ◽  
Benthic Invertebrate ◽  
Taxonomic Composition ◽  
Sampling Effort ◽  
Generic Level ◽  
Family Diversity ◽  
The North ◽  
Large Numbers ◽  
Invertebrate Assemblages

Benthic invertebrate assemblages were studied across four streams in the Sahtu Settlement Region of the Northwest Territories between July 2010 and October 2011 to provide information on biotic composition and associations with habitat and temporal factors. Overall diversity was similar for all streams, although taxonomic composition varied among the streams. Within streams, richness was highest in riffle and snag (woody debris) habitats and lowest in pools and leafpacks. A substantial portion of taxa (∼25%) would have been missed if only riffles had been sampled. Nearly 88% of individuals belonged to eight taxa, with >60% of individuals found in only two families (Chironomidae and Baetidae). While high within-family diversity was observed, samples were also characterized by large numbers of rare taxa, with large temporal differences in abundances. Future benthic assessments in northern streams would benefit from increased sampling effort to ensure representative samples for comparing streams or sites and approaches that target dominant families in the north (e.g., Chironomidae), which can provide a great deal of information on biodiversity when examined at the generic level. Likewise, further analysis of the seasonal compositional turnover for some assemblages may be necessary to distinguish anthropogenic responses from natural variability.

Seasonal fluctuations in coastal benthic invertebrate assemblages

1979 ◽  
Vol 8 (2) ◽  
pp. 181-193 ◽  
Author(s):  
Don Maurer ◽  
Wayne Leathem ◽  
Peter Kinner ◽  
Jeffrey Tinsman
Keyword(s):  
Benthic Invertebrate ◽  
Seasonal Fluctuations ◽  
Invertebrate Assemblages

scholarly journals Disentangling the Effects of Multiple Stressors on Large Rivers Using Benthic Invertebrates—A Study of Southeastern European Large Rivers with Implications for Management

Water ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 621 ◽  
Author(s):  
Gorazd Urbanič ◽  
Zlatko Mihaljević ◽  
Vesna Petkovska ◽  
Maja Pavlin Urbanič
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Multiple Stressors ◽  
Management Strategies ◽  
Specific Effect ◽  
Benthic Invertebrate ◽  
Large Rivers ◽  
Specific Effects ◽  
Land Use Effects ◽  
Invertebrate Assemblages

Predicting anthropogenic actions resulting in undesirable changes in aquatic systems is crucial for the development of effective and sustainable water management strategies. Due to the co-occurrence of stressors and a lack of appropriate data, the effects on large rivers are difficult to elucidate. To overcome this problem, we developed a partial canonical correspondence analyses (pCCA) model using 292 benthic invertebrate taxa from 104 sites that incorporated the effects of three stressors groups: hydromorphology, land use, and water quality. The data covered an environmental gradient from near-natural to heavily altered sites in five large rivers in Southeastern Europe. Prior to developing the multi-stressor model, we assessed the importance of natural characteristics on individual stressor groups. Stressors proved to be the dominant factors in shaping benthic invertebrate assemblages. The pCCA among stressor-groups showed that unique effects dominated over joint effects. Thus, benthic invertebrate assemblages were suitable for disentangling the specific effect of each of the three stressor groups. While the effects of hydromorphology were dominant, both water quality and land use effects were nearly equally important. Quantifying the specific effects of hydromorphological alterations, water quality, and land use will allow water managers to better understand how large rivers have changed and to better define expectations for ecosystem conditions in the future.

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