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Tailrace fishing

Tailrace fishing is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Tailrace fishing rather than just read about it. In short: Tailrace fishing is angling immediately below natural or man-made dams or restrictions to the flow of water on rivers, canals, streams or any other flowing current. Fishing in a tailrace requires a distinct set of skills in that lures or bait must be moved through the flowing water to the feeding spots in the currents.

Tailrace fishing — main illustration
Tailrace fishing — illustration

Key takeaways

  • Tailrace fishing belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Tailrace fishing to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Tailrace fishing from memory before moving on to harder problems.

Reference excerpt

Tailrace fishing is angling immediately below natural or man-made dams or restrictions to the flow of water on rivers, canals, streams or any other flowing current. Fishing in a tailrace requires a distinct set of skills in that lures or bait must be moved through the flowing water to the feeding spots in the currents. Hydro tailrace fishing occurs in the discharge of hydroelectric power stations below a dam. Fishing below spillways is another form of tailrace fishing in which the turbulent water below the dam creates pockets of water that trap bait fish and attract gamefish.

Types of tailrace fishing

Hydro tailrace fishing is a more modern form of fishing the turbulent waters below reservoirs. The term hydro generation refers to the massive generators within a dam structure that are propelled by the force of gravity pushed by the vessel of water through an impeller which rotates the rotor causing lines of magnetic flux thus creating electric current which can then be transmitted as electricity. When vanes or valves are opened the water immediately flows from the above reservoir, causing turbulent water below the dam structure. Generation once started can last for a few minutes and up to months at times if all mechanical conditions and market demand is required from the governing utility or municipality. Hydro tailrace fishing is angling with rod and reel using artificial or live bait through these swift waters. Kinetic tailrace fishing is angling with fishing rod and reel below a dam, spillway or weir or any structure which has a drop in elevation that causes turbulent or swift moving water at its base. An example would be Mission Valley Dam on the Guadalupe River on the northern end of Lake Dunlap in New Braunsfels, Texas. Free flowing rivers and streams which flow over a Dam structure are the most common types of dams that can provide tailrace fishing.

Access Hydro tailrace fisherman face many obstacles in securing their rights as a group of fishermen. One example of regaining lost rights is the Freedom to Fish Act that came out of a dispute with the Corps of Engineers attempt to restrict access below dams on the Cumberland River.

See also Fish ladder

References

http://www.alaska.org/detail/eklutna-tailrace abc.net.au alaska.gov http://www.flwoutdoors.com/fishing-articles/156030/race-to-the-tailrace/#.VNQ0c9LF98E http://www.dto.com/swfishing/article/617 http://www.gameandfishmag.com/fishing/fishing_walleyes-fishing_gp_aa031402a/ http://www.gofishohio.com/articles/doc/doc_damtailraces.php https://www.npwrc.usgs.gov/resource/habitat/cwmiss/garrison.htm http://www.bassmaster.com/tips/tactics-tailraces http://www.nighthawkpublications.com/journal/journal161-2.htm

Illustrations

Tailrace fishing: Tailrace fishing at the Inks Dam, Texas
Tailrace fishing at the Inks Dam, Texas
Tailrace fishing: Tailrace fishing at the Wirtz Dam, Texas
Tailrace fishing at the Wirtz Dam, Texas
Tailrace fishing: Tailrace fishing at the Mansfield Dam, Texas
Tailrace fishing at the Mansfield Dam, Texas

Worked examples

Example 1 — a first encounter with Tailrace fishing

Start with the simplest possible case. Write down what Tailrace fishing claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Tailrace fishing before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Tailrace fishing ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Tailrace fishing

In research
Tailrace fishing appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Tailrace fishing in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Tailrace fishing is common in secondary-school and first-year university syllabi. It links to neighbouring topics Angling, Dams, Hydroelectricity, so understanding it makes those chapters shorter.
In everyday life
Look for Tailrace fishing outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Tailrace fishing in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Tailrace fishing means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Tailrace fishing out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Tailrace fishing in simple terms?

Tailrace fishing is angling immediately below natural or man-made dams or restrictions to the flow of water on rivers, canals, streams or any other flowing current. Fishing in a tailrace requires a distinct set of skills in that lures or bait must be moved through the flowing water to the feeding s…

Why does Tailrace fishing matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Tailrace fishing?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Tailrace fishing.

Tags

  • Angling
  • Dams
  • Hydroelectricity
  • Hydropower
  • Weirs

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