CORE Aquatic Education and Fishing Skills 5

Question 1

Which water quality parameter most directly indicates recent nutrient pollution (such as agricultural runoff) in a stream?

Accepted Answer

Nitrate and phosphate concentration

Answer

Elevated nitrate and phosphate concentrations are direct indicators of nutrient loading from fertilizers or animal waste, often triggering algal blooms.

Question 2

What is 'match the hatch' in fly fishing?

Accepted Answer

Selecting a fly that imitates the aquatic insects currently emerging on the water

Answer

Matching the hatch means choosing a fly pattern that closely imitates the size, shape, and color of insects hatching at that moment, increasing strike probability.

Question 3

Under most U.S. state regulations, a 'slot limit' for bass means an angler must:

Accepted Answer

Keep only fish within a specified length range and release fish above or below it

Answer

A slot limit protects a specific size class of fish (often large spawning adults) by requiring anglers to release fish within that length range.

Question 4

Which invasive species introduced via ballast water has severely disrupted Great Lakes fisheries by filtering phytoplankton that supports the food web?

Accepted Answer

Zebra mussel (Dreissena polymorpha)

Answer

Zebra mussels filter vast quantities of phytoplankton, collapsing the base of the food web and causing dramatic declines in native fish populations.

Question 5

When a spinning reel produces consistent line twist, what is the most likely cause?

Accepted Answer

Spooling the line against the natural coil direction or reeling against a running fish

Answer

Line twist accumulates when monofilament is spooled in the wrong rotational direction or when an angler cranks the reel handle while a fish pulls line against the drag.

CORE - Conservation and Outdoor Recreation Education Practice Test

CORE - Conservation and Outdoor Recreation Education Practice Test

CORE Aquatic Education and Fishing Skills 5