Towards transferability in fish migration models: A generic operational tool for predicting silver eel migration in rivers

With the aim of building more compact fishways and adapting them to field conditions to improve their location by fish, it is common to use turning pools, reducing the longitudinal development of the construction. However, depending on their design, turning pools may affect the hydraulic performance of the fishway and consequently the fish passage. To study these phenomena, turning pools in a vertical slot and in different configurations of submerged notches with bottom orifice fishway types were assessed. Both types of fishways were studied using numerical 3D models via OpenFOAM, a computational fluid dynamics software, in combination with fish responses, assessed with PIT (Passive Integrated Transponder) tag telemetry for three different species of potamodromous cyprinids in several fishways. Results show differences between the hydrodynamics of straight and turning pools, with lower values in the hydrodynamic variables in turning pools. Regarding fish behavior, the ascent was slower in turning pools but with no effect on passage success and without being a problem for fish migration. This information validates the use of turning pools as a key design component for fishways for studied species.

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The Poseidon Operational Tool for the Prediction of Floating Pollutant Transport

Marine Pollution Bulletin ◽

10.1016/s0025-326x(01)00080-7 ◽

2001 ◽

Vol 43 (7-12) ◽

pp. 270-278 ◽

Cited By ~ 18

Author(s):

Pollani Annika ◽

Triantafyllou George ◽

Petihakis George ◽

Nittis Konstantinos ◽

Dounas Costas ◽

...

Keyword(s):

Pollutant Transport ◽

Operational Tool

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Stable isotope records from otoliths as tracers of fish migration in a mangrove system

Journal of Fish Biology ◽

10.1111/j.1095-8649.2007.01443.x ◽

2007 ◽

Vol 70 (5) ◽

pp. 1554-1567 ◽

Cited By ~ 17

Author(s):

M. Huxham ◽

E. Kimani ◽

J. Newton ◽

J. Augley

Keyword(s):

Stable Isotope ◽

Fish Migration ◽

Mangrove System

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Climatological and statistical characteristics of the Haines Index for North America

International Journal of Wildland Fire ◽

10.1071/wf06086 ◽

2007 ◽

Vol 16 (2) ◽

pp. 139 ◽

Cited By ~ 21

Author(s):

Julie A. Winkler ◽

Brian E. Potter ◽

Dwight F. Wilhelm ◽

Ryan P. Shadbolt ◽

Krerk Piromsopa ◽

...

Keyword(s):

North America ◽

Spatial Variability ◽

Atmospheric Pressure ◽

Statistical Characteristics ◽

Potential Contribution ◽

Extensive Analysis ◽

Temperature And Humidity ◽

Humidity Measurements ◽

Operational Tool

The Haines Index is an operational tool for evaluating the potential contribution of dry, unstable air to the development of large or erratic plume-dominated wildfires. The index has three variants related to surface elevation, and is calculated from temperature and humidity measurements at atmospheric pressure levels. To effectively use the Haines Index, fire forecasters and managers must be aware of the climatological and statistical characteristics of the index for their location. However, a detailed, long-term, and spatially extensive analysis of the index does not currently exist. To meet this need, a 40-year (1961–2000) climatology of the Haines Index was developed for North America. The climatology is based on gridded (2.5° latitude × 2.5° longitude) temperature and humidity fields from the NCEP/NCAR reanalysis. The climatology illustrates the large spatial variability in the Haines Index both within and between regions using the different index variants. These spatial variations point to the limitations of the index and must be taken into account when using the Haines Index operationally.

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