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Fishing facts & stats

7 fact-checked facts about fishing, each with the reason behind it. 5 more are in today's round and join this page after it closes.

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The basics

What does a float or bobber do on a fishing line?

AnswerHolds bait at a depth and signals a bite

A float suspends bait at a chosen depth and dips or moves when a fish takes the bait.

What is a sinker used for in fishing?

AnswerAdding weight to take the bait down

A sinker is a weight, traditionally lead but now often other metals, that carries bait or lure deeper.

Going deeper

In fly fishing, what mainly carries the nearly weightless fly out when casting?

AnswerThe weight of the fly line

Fly casting uses a thick, weighted line; the line's momentum carries the light artificial fly to the target.

What does a fish's lateral line help it sense?

AnswerVibrations and water movement

The lateral line is a row of sensory organs along each side that detects pressure changes and movement in the water.

What does a swim bladder help many fish control?

AnswerBuoyancy

By adjusting gas in the swim bladder, many bony fish can hover at a depth without constant swimming.

Expert level

What is an anadromous fish, such as salmon?

AnswerOne born in fresh water that lives at sea and returns to spawn

Anadromous fish hatch in rivers, grow in the ocean and migrate back up rivers to spawn.

Scientists can estimate a fish's age by counting growth rings in which ear bones?

AnswerOtoliths

Otoliths, or ear stones, lay down yearly growth rings, much like the rings of a tree.

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