scholarly journals Functional Feeding Group (FFG) of Aquatic Macroinvertebrate in Middle Reach of Kerian River Basin of North Malaysia Peninsula

2019 ◽  
Vol 30 (2) ◽  
pp. 1-12
Author(s):  
Nurul Huda Abdul ◽  
◽  
Che Salmah Md Rawi ◽  
◽  
Keyword(s):  
River Basin ◽  
Middle Reach ◽  
Aquatic Macroinvertebrate ◽  
Functional Feeding Group ◽  
Feeding Group

Decreasing Richness And Biomass During A Flood Pulse Observed In A Southeastern US Coastal Floodplain Following A Multi-Year, Supra-Seasonal Drought

2021 ◽  
Author(s):  
Erica L. Johnson ◽  
Erin F. Abernethy ◽  
J. Checo Colón-Gaud
Keyword(s):  
Community Composition ◽  
Climate Change Impacts ◽  
Flood Pulse ◽  
Macroinvertebrate Communities ◽  
Biological Productivity ◽  
Aquatic Communities ◽  
Functional Feeding Group ◽  
Seasonal Flooding ◽  
Southeastern Us ◽  
Feeding Group

Abstract Floodplains of the southeastern United States exhibit high biological productivity, maintained by periodic floodplain inundation as a result of seasonal flooding. To examine the relationship between biological productivity and seasonal flooding following periods of drought, we quantified aquatic macroinvertebrate communities monthly in an inundated floodplain during the annual flood pulse (December-April) in two years, one following a multi-year drought and one following a larger than average flooding event. We predicted that floodplain communities would differ in richness, biomass, and community composition between years and that differences would be driven by discharge at the main stem and organic matter availability. We collected macroinvertebrates from the floodplain of the Altamaha River, an unimpounded 6th order river in the Coastal Plain region of the southeastern US that experiences floodplain connectivity. With invertebrates identified to genus, we elucidated richness, abundance, biomass, community composition, and functional feeding group. Richness was generally higher in the drought year but decreased throughout the flood pulse, while during the flood year richness was lower and increased. Biomass decreased throughout the flood pulse following the drought year and increased during the flood year. There was a high degree of overlap in invertebrate community composition based on abundance data during both years of the study with collector gatherers being the most highly abundant functional feeding group. As climate change impacts (i.e., severe droughts) become more common, it is critical to investigate how aquatic communities are responding to increasingly unpredictable flow conditions in unimpounded and seemingly unaltered rivers.

Aquatic macroinvertebrate biodiversity in the Segura River Basin (SE Spain)

2002 ◽  
Vol 28 (2) ◽  
pp. 1157-1162
Author(s):  
A. Mellado ◽  
M. L. Suárez ◽  
J. L. Moreno ◽  
M. R. Vidal-Abarca
Keyword(s):  
River Basin ◽  
Se Spain ◽  
Aquatic Macroinvertebrate

Study on eco-environmental water requirement in the middle-reach oasis of Shulehe River Basin based on ecological protection target

2017 ◽  
Vol 37 (3) ◽  
Author(s):  
孙栋元 SUN Dongyuan ◽  
杨俊 YANG Jun ◽  
胡想全 HU Xiangquan ◽  
金彦兆 JIN Yanzhao ◽  
张云亮 ZHANG Yunliang
Keyword(s):  
River Basin ◽  
Environmental Water ◽  
Water Requirement ◽  
Middle Reach ◽  
Ecological Protection

scholarly journals Promoting a functional macroinvertebrate approach in the biomonitoring of Italian lotic systems

2016 ◽  
Vol 76 (s1) ◽  
Author(s):  
Richard W. Merritt ◽  
Stefano Fenoglio ◽  
Kenneth W. Cummins
Keyword(s):  
Freshwater Ecosystems ◽  
Level Of Detail ◽  
Functional Feeding Groups ◽  
Running Waters ◽  
Ecological Evaluation ◽  
Lotic Systems ◽  
Functional Feeding Group ◽  
Feeding Group ◽  
Great Availability ◽  
Made In

Over fifty years of research on freshwater macroinvertebrates has been driven largely by the state of the taxonomy of these organisms. Significant advances have been and continue to be made in developing ever more refined keys to macroinvertebrate groups. When advances in macroinvertebrate ecological research are restricted by the level of detail in identifications, then analysis by function is a viable alternative. The focus on function, namely adaptations of macroinvertebrates to habitats and the utilization of food resources, has facilitated ecological evaluation of freshwater ecosystems. This classification is based not on what insects eat, but how they obtain their food. These categories are called 'functional feeding groups', as the name implies, denoting their functional role when describing how and where they feed. This is the basis for the functional feeding group (FFG) method that was initially developed in the early 1960s. Taxonomy is applied only to the level of detail that allows assignment to one of five functional feeding group categories: detrital shredders, scrapers, filtering collectors, gatherers, and predators. The aim of this short communication, originating from the presentation of R.W. Merritt at the Biomonitoring Symposium in Rome, 2015, is to promote the use of a functional approach in biomonitoring, especially in Italian and European lotic systems. Here, we present two case studies and we discuss the advantages of the method, especially considering the great availability of quantitative data on macroinvertebrates after the implementation of the WFD 2000/60. We are confident that the increase of functional assessment of ecosystem attributes could have important and direct repercussions in the understanding and management of running waters.

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