Habitat Alterations and Fish Assemblage Structure in the Missouri River System, USA: is Ecomorphology an Explanation?

2018 ◽  
Vol 121 (1-2) ◽  
pp. 1-22
Author(s):  
Tim L. Welker ◽  
Dennis L. Scarnecchia
Keyword(s):  
Fish Assemblage ◽  
Missouri River ◽  
River System ◽  
Assemblage Structure ◽  
Fish Assemblage Structure ◽  
Habitat Alterations

scholarly journals The influence of changes to abiotic parameters on the fish assemblage structure of a lowland stream

2012 ◽  
Vol 60 (3) ◽  
pp. 207-216
Author(s):  
Tomáš Vítek ◽  
R. Kopp ◽  
J. Mareš ◽  
T. Brabec ◽  
P. Spurný
Keyword(s):  
Fish Assemblage ◽  
Water Environment ◽  
Hydrological Regime ◽  
Water Shortage ◽  
Assemblage Structure ◽  
Fish Assemblage Structure ◽  
Chemical Parameters ◽  
Water Conductivity ◽  
Habitat Alterations ◽  
Physical And Chemical

Ichthyological monitoring and the assessment of 16 physical and chemical parameters of the water environment were conducted at two localities on the Dyje River, Czech Republic, at different distances downstream from the Znojmo Reservoir (at 12 and 31 km) to reveal habitat alterations. Canonical correspondence analysis confirmed that differences in fish abundance between localities were influenced by different hydrological regimes characterized by discharge and flow velocities and also by water conductivity, which increased with the distance from the reservoir. The influence of chemical parameters of water related to water quality on fish assemblage structure was insignificant. The second locality (further from the reservoir) was characterised by substantial water shortage during the vegetation season. Changes in hydrological regime and the loss of connectivity in the Dyje River both connected with dam building and water shortage for irrigation have led to dramatic changes in the fish assemblage structure since the 1950s and the complete loss of common nase.

scholarly journals Rocky reef fish assemblage structure in coastal islands of Southern Brazil

2015 ◽  
Vol 2 ◽  
Author(s):  
Daros Felippe ◽  
Bueno Leonardo ◽  
Soeth Marcelo ◽  
Bertoncini Athila ◽  
Hostim-Silva Mauricio ◽  
...  
Keyword(s):  
Reef Fish ◽  
Fish Assemblage ◽  
Assemblage Structure ◽  
Rocky Reef ◽  
Fish Assemblage Structure ◽  
Southern Brazil ◽  
Reef Fish Assemblage ◽  
Rocky Reef Fish
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