Long-term Hydrologic Variability in a Large Subtropical Floodplain River: Effects on Commercial Fisheries

2016 ◽  
Vol 33 (3) ◽  
pp. 353-363 ◽  
Author(s):  
A. P. Rabuffetti ◽  
K. Górski ◽  
L. A. Espínola ◽  
E. Abrial ◽  
M. L. Amsler ◽  
...  
Keyword(s):  
Commercial Fisheries ◽  
Floodplain River ◽  
Hydrologic Variability

scholarly journals Commercial fisheries in a mega unregulated floodplain river: Assessment of the most favourable hydrological conditions for its preservation

2019 ◽  
Vol 96 (1) ◽  
pp. 59-73
Author(s):  
Ana Pia Rabuffetti ◽  
Luis A. Espínola ◽  
Elie Abrial ◽  
Mario L. Amsler ◽  
Martin C. M. Blettler ◽  
...  
Keyword(s):  
Commercial Fisheries ◽  
Hydrological Conditions ◽  
Floodplain River ◽  
River Assessment

scholarly journals Hydrologic variability and its influence on long-term peat dynamics

2010 ◽  
Vol 46 (12) ◽  
Author(s):  
Asa K. Rennermalm ◽  
Jan M. Nordbotten ◽  
Eric F. Wood
Keyword(s):  
Hydrologic Variability

Community Ecology of Stream Fishes: Concepts, Approaches, and Techniques

2010 ◽  
Keyword(s):  
Fish Assemblage ◽  
Fish Assemblages ◽  
Stochastic Dynamics ◽  
Low Flow ◽  
Community Stability ◽  
Discharge Data ◽  
Hydrologic Variability ◽  
The Stability ◽  
Stream Fish Assemblages

<em>Abstract.—</em>Stochastic dynamics are central to theory, data analysis, and understanding in the fields of hydrology and population ecology. More importantly, hydrologic variability has been identified as a key process affecting biodiversity and coexistence in stream fish assemblages. Until recently, however, we have lacked tools by which hydrologic variability can be directly linked to measures of community stability. Herein, we show how a modification of Fourier analysis of daily average discharge data can be used to quantify aspects of hydrologic variability for three reference streams and then linked to measures of fish assemblage stability in Coweeta Creek, North Carolina; Sagehen Creek, California; and Otter Creek, Indiana) via multivariate autoregressive (MAR) models. Specifically, we define the magnitude of catastrophic variability as the standard deviation of <em>residual </em>flows referenced to a long-term annual trend, and individual catastrophic events as flows greater than (floods) or less than (droughts) two times this magnitude (i.e., 2 𝛔). We then directly link the magnitude of annual <em>residual </em>flows with MAR models that quantify the relationship between flows and the stability of fish assemblages from the same or nearby streams. Our results confirm that these streams represent a gradient in the stability properties of fish assemblages; Sagehen Creek is the most stable, whereas Otter Creek is the least stable. The timing of catastrophic high and low flows is most predictable in Sagehen Creek and least predictable in Big Raccon Creek (reference stream for Otter Creek), whereas the magnitude and frequency of <em>catastrophic </em>events varied in a manner less consistent with the gradient in fish community stability. Nevertheless, the stability of fish communities covaried significantly with both residual flow magnitudes (high- and low-flow events). Although this technique is not without limitations (e.g., it is most relevant to resident species), it appears to be a promising new tool for linking hydrologic variability directly to fish assemblage stability and, more broadly, for quantifying links between flow regulation and the viability of native aquatic faunas.

Long-term perspectives on human impacts on floodplain–river ecosystems, Murray–Darling Basin, Australia

2002 ◽  
Vol 28 (2) ◽  
pp. 710-716 ◽  
Author(s):  
Michael Reid ◽  
Jennie Fluin ◽  
Ralph Ogden ◽  
John Tibby ◽  
Peter Kershaw
Keyword(s):  
Human Impacts ◽  
River Ecosystems ◽  
Floodplain River ◽  
Murray Darling Basin

Reconstruction of Long-Term Time Series for Commercial Fisheries Abundance and Estuarine Pollution Loadings

Estuaries ◽  
1985 ◽  
Vol 8 (2) ◽  
pp. 114 ◽  
Author(s):  
J. K. Summers ◽  
J. A. Tarr ◽  
D. G. Heimbuch ◽  
R. A. Cummins ◽  
K. T. Yetman ◽  
...  
Keyword(s):  
Time Series ◽  
Commercial Fisheries ◽  
Estuarine Pollution

scholarly journals Iron triangles and subsidies: understanding the long-term role of the government on Swedish commercial fisheries

2019 ◽  
Vol 24 (4) ◽  
Author(s):  
Jonas Hentati-Sundberg ◽  
Katharina Fryers Hellquist ◽  
Andreas Duit
Keyword(s):  
Commercial Fisheries ◽  
The Government ◽  
Role Of The Government
Sign in / Sign up

Export Citation Format

Share Document