scholarly journals Valley‐scale hydrogeomorphology drives river fish assemblage variation in Mongolia

2021 ◽  
Author(s):  
Alain Maasri ◽  
Mark Pyron ◽  
Emily R. Arsenault ◽  
James H. Thorp ◽  
Bud Mendsaikhan ◽  
...  
Keyword(s):  
Fish Assemblage ◽  
River Fish

scholarly journals The trophic ecology of a desert river fish assemblage: influence of season and hydrologic variability

Ecosphere ◽  
2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Kathrine E. Behn ◽  
Colden V. Baxter
Keyword(s):  
Fish Assemblage ◽  
Trophic Ecology ◽  
Hydrologic Variability ◽  
River Fish

Historical Changes in Large River Fish Assemblages of the Americas

2005 ◽  
Keyword(s):  
Fish Assemblage ◽  
Fish Assemblages ◽  
River Management ◽  
Large River ◽  
Large Rivers ◽  
Pertinent Literature ◽  
Historical Changes ◽  
Time To Learn ◽  
River Fish

<em>Abstract.</em>—This book’s objective is to document historical changes in the fish assemblages of large American rivers, and to determine patterns in and rationale for those changes. In this chapter, we review pertinent literature on large rivers and fish assemblages worldwide and briefly introduce the chapters. We expect that the information contained in this book will aid river management in general, and stimulate similar historical fish assemblage studies elsewhere. There will never be a better time to learn and understand what has been changed and to reverse or slow undesirable changes.

scholarly journals Non-marine fish of the late Santonian Milk River Formation of Alberta, Canada – evidence from vertebrate microfossil localities

2017 ◽  
Vol 3 ◽  
Author(s):  
Don B Brinkman ◽  
Andrew G. Neuman ◽  
Julien Divay
Keyword(s):  
Marine Fish ◽  
Relative Abundance ◽  
Fish Assemblage ◽  
Global Temperature ◽  
High Abundance ◽  
Faunal Assemblage ◽  
Abundance Patterns ◽  
First Occurrence ◽  
Milk River Formation ◽  
River Fish

The diversity of fishes from the late Santonian Milk River Formation is investigated using a combined taxonomic/morphotype approach. Twenty-one taxa are present, including four elasmobranchs, seven basal actinopterygians, and of ten teleosts. The Milk River fish assemblage is more similar to assemblages from southern Utah than it is to the late Campanian assemblage of Alberta in the presence of the elasmobranch Lonchidion and a member of amiid subfamily Vidalamiinae, the relatively high abundance of the ostariophysan teleost U3/BvD, and the absence of sturgeon, Holostean A, Holostean B, and Coriops. This similarity is hypothesized to be the result of a northern shift in the distribution of these taxa during times of high global temperature, resulting in the presence of a “southern” faunal assemblage in Alberta during the late Santonian. In the relative abundance patterns of major groups of fish, the Milk River Formation assemblage is similar to late Campanian assemblages and different from those of late Maastrichtian in that amiids and lepsisoteids are of relatively low abundance. The abundance of acanthomorph teleosts in the Milk River Formation is similar to that of contemporaneous assemblages from Utah, which supports a pattern of increasing abundance of acanthomorphs from their first occurrence in non-marine vertebrate assemblages of the Western Interior in the Coniacian through to the end of the Cretaceous.

scholarly journals Shift in a Large River Fish Assemblage: Body-Size and Trophic Structure Dynamics

PLoS ONE ◽  
2015 ◽  
Vol 10 (4) ◽  
pp. e0124954 ◽  
Author(s):  
Kyle J. Broadway ◽  
Mark Pyron ◽  
James R. Gammon ◽  
Brent A. Murry
Keyword(s):  
Body Size ◽  
Fish Assemblage ◽  
Trophic Structure ◽  
Large River ◽  
Structure Dynamics ◽  
River Fish

Long-term Trends in the Bogue Chitto River Fish Assemblage: A 27 Year Perspective

2005 ◽  
Vol 4 (2) ◽  
pp. 261-272 ◽  
Author(s):  
Jeffrey G. Stewart ◽  
Christopher S. Schieble ◽  
Robert C. Cashner ◽  
Valerie A. Barko
Keyword(s):  
Fish Assemblage ◽  
Long Term Trends ◽  
River Fish

Spatially Dependent Responses of a Large-River Fish Assemblage to Bank Stabilization and Side Channels

2017 ◽  
Vol 146 (5) ◽  
pp. 967-982 ◽  
Author(s):  
Ann Marie Reinhold ◽  
Robert G. Bramblett ◽  
Alexander V. Zale ◽  
Geoffrey C. Poole ◽  
David W. Roberts
Keyword(s):  
Fish Assemblage ◽  
Large River ◽  
Side Channels ◽  
Bank Stabilization ◽  
River Fish

Historical Changes in Large River Fish Assemblages of the Americas

2005 ◽  
Keyword(s):  
Water Pollution ◽  
Best Management Practices ◽  
Fish Assemblage ◽  
Municipal Wastewater ◽  
Fish Assemblages ◽  
Primary Objective ◽  
Nonpoint Sources ◽  
Control Programs ◽  
Before And After ◽  
River Fish

<em>Abstract.</em>—A systematic, standardized approach to monitor fish assemblages has been applied in Ohio’s rivers since 1979. A primary objective is the assessment of changes in response to water pollution abatement and other water quality management programs. All major, nonwadeable rivers were intensively sampled using standardized electrofishing methods and a summer–early fall index period. Most rivers were sampled two or three times, before and after implementation of pollution controls at major point source discharges and best management practices for nonpoint sources. A modified and calibrated index of biotic integrity (IBI) was used to demonstrate and evaluate changes at multiple sampling locations in major river segments. An area of degradation value (ADV) and an area of attainment value (AAV) were also calculated from IBI results to demonstrate the magnitude and extent of changes in fish assemblage condition along segments and between sampling years. Positive responses in the IBI and the ADV/AAV were observed 4 to 5 years after implementing improved municipal wastewater treatment. Positive responses were much less apparent in rivers predominantly influenced by complex industrial sources, agricultural nonpoint sources, and extensive hydrologic modifications. The ADV/AAV showed incremental improvements in river fish assemblages, unlike pass/fail IBI thresholds, and tiered IBI biocriteria provided more appropriate benchmarks than chemical, physical, or qualitative biological criteria. The results show the value of standardized and intensive fish assemblage monitoring and the use of tools that reveal the extent and severity of impairments to determine the effectiveness of water pollution control programs.

scholarly journals Ecological Recovery of a River Fish Assemblage following the Implementation of the Clean Water Act

BioScience ◽  
2017 ◽  
Vol 67 (11) ◽  
pp. 957-970 ◽  
Author(s):  
Daniel K. Gibson-Reinemer ◽  
Richard E. Sparks ◽  
Jerrod L. Parker ◽  
Jason A. DeBoer ◽  
Mark W. Fritts ◽  
...  
Keyword(s):  
Fish Assemblage ◽  
Clean Water Act ◽  
Clean Water ◽  
Ecological Recovery ◽  
River Fish
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