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You searched for: Source 2018 v.69 no.12 Remove constraint Source: 2018 v.69 no.12 Subject term fish Remove constraint Subject term: fish
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1. Comparison of sonar-, camera- and net-based methods in detecting riverine fish-movement patterns

Author:
Leonhard Egg; Joachim Pander; Melanie Mueller; Juergen Geist
Source:
Marine & freshwater research 2018 v.69 no.12 pp. 1905-1912
ISSN:
1323-1650
Subject:
cameras; fish; fish ladders; monitoring; rivers; solar radiation; species identification; Germany
Abstract:
... Monitoring of fish movement is important in understanding and optimising the functionality of fishways and in restoring riverine connectivity. This study compared fish monitoring data (ARIS sonar-based and GoPro camera-based), with catches in a multi-mesh stow net following downstream passage in a small river in Bavaria, Germany. In terms of the number of individuals, the sonar-based system (detec ...
DOI:
10.1071/MF18068

2. Effectiveness of a fish ladder for two Neotropical migratory species in the Paraná River

Author:
Carola Gutfreund; Sergio Makrakis; Theodore Castro-Santos; Leandro Fernandes Celestino; João Henrique Pinheiro Dias; Maristela Cavicchioli Makrakis
Source:
Marine & freshwater research 2018 v.69 no.12 pp. 1848-1856
ISSN:
1323-1650
Subject:
fish; fish ladders; migratory behavior; migratory species; rivers
Abstract:
... We evaluated the effectiveness of the fish ladder at Porto Primavera Dam in the severely regulated Upper Paraná River, for two Neotropical migratory fish species. Overall, 564 fish (448Megaleporinus obtusidens and 116M. piavussu) were PIT-tagged, released in upstream and downstream areas (on the left and right banks), and monitored continuously for 4 years. The fish performed two-way movements thr ...
DOI:
10.1071/MF18129

3. Flow characteristics in tailrace: understanding how hydrodynamics may attract fish to hydropower plant in South America

Author:
Hersília A. Santos; Bernardo Duarte; Abgail Pinheiro; Deborah Cruz; Guilherme Souza
Source:
Marine & freshwater research 2018 v.69 no.12 pp. 1962-1973
ISSN:
1323-1650
Subject:
Pimelodus; Prochilodus; dynamic models; fish; fisheries; hydrodynamics; rivers; spillways; swimming; turbines; water power; Brazil
Abstract:
... Hydropower plant (HPP) operation may influence downstream flow regimes, which can affect the fish movement. In South America, tailrace fisheries are often killed or injured when interacting with spillways and turbines. Hydrodynamic flow-pattern studies are essential to facilitate mitigation. We developed a computational fluid dynamics model to investigate flow downstream of Três Marias HPP (Brazil ...
DOI:
10.1071/MF18135

4. Long-term study of reservoir cascade in south-eastern Brazil reveals spatio-temporal gradient in fish assemblages

Author:
Raquel Coelho Loures; Paulo Santos Pompeu
Source:
Marine & freshwater research 2018 v.69 no.12 pp. 1983-1994
ISSN:
1323-1650
Subject:
basins; fish; habitats; herbivores; introduced species; inventories; lotic systems; migratory behavior; migratory species; monitoring; species richness; water power; watersheds; Brazil
Abstract:
... In reservoir cascades, effects on fish assemblages are expected to strengthen over time and transfer from one reservoir to an adjacent one. To test this, fish-assemblage data from 23 years of monitoring in the Araguari reservoir cascade system, upper Paraná River basin, were analysed. The results showed a clear reduction in richness of native and migratory fish species and an increase of non-nativ ...
DOI:
10.1071/MF18109

5. Physical and hydraulic forces experienced by fish passing through three different low-head hydropower turbines

Author:
Craig A. Boys; Brett D. Pflugrath; Melanie Mueller; Joachim Pander; Zhiqun D. Deng; Juergen Geist
Source:
Marine & freshwater research 2018 v.69 no.12 pp. 1934-1944
ISSN:
1323-1650
Subject:
atmospheric pressure; blades; data collection; fish; risk; turbines; water power
Abstract:
... Knowing the kinds of physical stress experienced by fish passing through hydropower turbines can help optimise technologies and improve fish passage. This paper assesses the hydraulic conditions experienced through three different low-head turbines (a very low head (VLH), Archimedes screw and horizontal Kaplan turbine), taken using an autonomous sensor. In total, 127 Sensor Fish deployments were u ...
DOI:
10.1071/MF18100

6. Stress indicators for Prochilodus lineatus (Characiformes: Prochilodontidae) breeders during passage through a fish ladder

Author:
Adriane F. Bido; Elisabeth C. Urbinati; Maristela C. Makrakis; Leandro F. Celestino; Mônica Serra; Sergio Makrakis
Source:
Marine & freshwater research 2018 v.69 no.12 pp. 1814-1821
ISSN:
1323-1650
Subject:
Prochilodus lineatus; adults; body weight; cortisol; dams (hydrology); females; fish; fish ladders; glucose; hematocrit; lactic acid; males; migratory behavior; rivers; Brazil
Abstract:
... This study investigated whether fish ladder transposition is a stressful event for the streaked prochilod, Prochilodus lineatus, in a dam on the Upper Paraná River, Brazil. Bodyweight, standard length and plasma concentrations of cortisol, glucose, lactate, chloride and haematocrit were measured in 48 adult fish (male and female) that were sampled downstream and upstream of the dam and on the fish ...
DOI:
10.1071/MF18087

7. Survival of fish passing downstream at a small hydropower facility

Author:
Stephen V. Amaral; Benjamin S. Coleman; Jenna L. Rackovan; Kelly Withers; Benjamin Mater
Source:
Marine & freshwater research 2018 v.69 no.12 pp. 1870-1881
ISSN:
1323-1650
Subject:
dams (hydrology); fish; fish communities; fluid mechanics; habitats; migratory behavior; probability; spillways; survival rate; water power; Mississippi River; United States
Abstract:
... Hydropower dams can negatively affect upstream and downstream migratory fish populations in many ways, such as blocking access to upstream habitats and causing injuries or mortality during downstream passage. For downstream passage at projects in the USA, federal regulators and agencies responsible for oversight of hydropower facilities typically require assessment studies and mitigation to addres ...
DOI:
10.1071/MF18123

8. The importance of a constructed near-nature-like Danube fish by-pass as a lifecycle fish habitat for spawning, nurseries, growing and feeding: a long-term view with remarks on management

Author:
Paul Meulenbroek; Silke Drexler; Christoffer Nagel; Michael Geistler; Herwig Waidbacher
Source:
Marine & freshwater research 2018 v.69 no.12 pp. 1857-1869
ISSN:
1323-1650
Subject:
Barbus barbus; Chondrostoma nasus; adults; biodiversity; eggs; endangered species; fauna; fish; habitats; indicator species; indigenous species; juveniles; larvae; rivers; spawning; watersheds
Abstract:
... Major sections of today’s rivers are man made and do not provide the essential requirements for riverine fish. A nature-like fish by-pass system in Vienna-Freudenau was assessed for its function as a fish habitat. The study was conducted continuously over 3 years; 15 years after construction of the by-pass. The chosen nature-like construction of the by-pass system functions like natural tributarie ...
DOI:
10.1071/MF18121