Analysis of the flow network in an estuarine benthic community

1989 ◽  
pp. 220-231 ◽  
Author(s):  
Richard M. Warwick ◽  
Philip J. Radford
Keyword(s):  
Benthic Community ◽  
Flow Network

Relocation of dredged material from Hamburg harbour in the River Elbe

1998 ◽  
Vol 37 (6-7) ◽  
pp. 241-248 ◽  
Author(s):  
A. Netzband ◽  
H. Christiansen ◽  
B. Maaß ◽  
G. Werner
Keyword(s):  
Water Quality ◽  
Benthic Community ◽  
Dredged Material ◽  
Far Field ◽  
Beneficial Use ◽  
River Elbe ◽  
Operating Strategies ◽  
Material Circulation

Besides the beneficial use of dredged material, sustainable relocation, which means keeping the sediments in the natural aquatic material circulation, is one goal for handling dredged material in the port of Hamburg. Decreasing contamination the River Elbe and new dredged material guidelines provide a basis for this. With comprehensive investigations, near- and far-field transport and the effects of relocation regarding the water quality and the benthic community were determined thus deveoloping conditions for future operating strategies.

Benthic community populations near two adjacent northern pulpmill discharges

1997 ◽  
Vol 35 (2-3) ◽  
pp. 381-388 ◽  
Author(s):  
G. P. Thomas ◽  
N. Munteanu
Keyword(s):  
Benthic Community ◽  
Ecological Model ◽  
Relative Proportion ◽  
Benthic Invertebrate ◽  
Treated Effluent ◽  
Spatial Confounding ◽  
Spatial Approach ◽  
Pulp And Paper Effluent ◽  
Taxonomic Groups ◽  
Benthic Invertebrate Communities

Benthic invertebrate communities were investigated as part of the federal Environmental Effects Monitoring programs conducted as required by the amended Pulp and Paper Effluent Regulations (PPER) of the federal Fisheries Act. A Refiner Mechanical (RMP) and larger Kraft pulpmill, both situated on a northern, BC reservoir, discharge secondary-treated effluent within 5 km of each other. Efforts to independently distinguish potential effects associated with these individual discharges were complicated by the proximity of the diffusers, their location within a complex ecological region of a reservoir, and the presence of temporal and spatial confounding influences. A comprehensive examination of the benthic community structure involved the combined assessment of several endpoints (total population numbers, relative proportion of taxonomic groups, and species richness). A tiered, spatial approach, based on a reservoir ecological model (Thornton et al., 1981), was adapted to assess and distinguish community structures and reservoir- and mill-related influences. Results suggested that effects associated with the two different mills could be distinguished based on subtle and distinct differences in benthic community profiles.

scholarly journals Shift in polar benthic community structure in a fast retreating glacial area of Marian Cove, West Antarctica

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hanna Bae ◽  
In-Young Ahn ◽  
Jinsoon Park ◽  
Sung Joon Song ◽  
Junsung Noh ◽  
...  
Keyword(s):  
Community Structure ◽  
Benthic Community ◽  
Adaptive Strategy ◽  
Ecological Impacts ◽  
Glacier Retreat ◽  
Benthic Diatoms ◽  
Subtidal Zone ◽  
Benthic Community Structure ◽  
Community Shift ◽  
Global Issue

AbstractGlacier retreat is a major long-standing global issue; however, the ecological impacts of such retreats on marine organisms remain unanswered. Here, we examined changes to the polar benthic community structure of “diatoms” under current global warming in a recently retreated glacial area of Marian Cove, Antarctica. The environments and spatiotemporal assemblages of benthic diatoms surveyed in 2018–2019 significantly varied between the intertidal (tidal height of 2.5 m) and subtidal zone (10 and 30 m). A distinct floral distribution along the cove (~ 4.5 km) was characterized by the adaptive strategy of species present, with chain-forming species predominating near the glacier. The predominant chain-forming diatoms, such as Fragilaria striatula and Paralia sp., are widely distributed in the innermost cove over years, indicating sensitive responses of benthic species to the fast-evolving polar environment. The site-specific and substrate-dependent distributions of certain indicator species (e.g., F. striatula, Navicula glaciei, Cocconeis cf. pinnata) generally reflected such shifts in the benthic community. Our review revealed that the inner glacier region reflected trophic association, featured with higher diversity, abundance, and biomass of benthic diatoms and macrofauna. Overall, the polar benthic community shift observed along the cove generally represented changing environmental conditions, (in)directly linked to ice-melting due to the recent glacier retreat.

The impact of China's import ban on global copper scrap flow network and the domestic copper sustainability

2021 ◽  
Vol 169 ◽  
pp. 105525
Author(s):  
Sen Liu ◽  
Wei Liu ◽  
Quanyin Tan ◽  
Jinhui Li ◽  
Wenqing Qin ◽  
...  
Keyword(s):  
Flow Network ◽  
The Impact

Military Human Resource Planning through Flow Network Modeling

2021 ◽  
pp. 1-12
Author(s):  
Oussama Mazari Abdessameud ◽  
Filip Van Utterbeeck ◽  
Marie-Anne Guerry
Keyword(s):  
Human Resource ◽  
Network Modeling ◽  
Resource Planning ◽  
Flow Network ◽  
Human Resource Planning ◽  
Through Flow
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