CORE Aquatic Education and Fishing Skills 2

Question 1

What is the term for the process by which excess nutrients cause algae overgrowth and oxygen depletion in a water body?

Accepted Answer

Eutrophication

Answer

Eutrophication occurs when nutrient runoff (especially nitrogen and phosphorus) spurs excessive algae growth, which depletes oxygen as it decomposes.

Question 2

Which fishing method involves dragging a baited line or lure behind a moving boat?

Accepted Answer

Trolling

Answer

Trolling involves pulling a lure or bait through the water behind a moving vessel to attract and catch fish over a wide area.

Question 3

When selecting a fishing rod for use in an introductory youth program, which rod length and action is generally most appropriate?

Accepted Answer

5–6 foot rod with light to medium action

Answer

A 5–6 foot, light to medium action rod is manageable for youth, provides good sensitivity, and handles typical beginner target species effectively.

Question 4

What does the term 'thermocline' refer to in an aquatic ecosystem?

Accepted Answer

A distinct layer of water where temperature drops rapidly with increasing depth

Answer

The thermocline is a transitional layer between warm surface water and cold deep water, where temperature changes sharply over a short vertical distance.

Question 5

Which water quality parameter most directly affects where cold-water fish species like trout will be found in a lake during summer?

Accepted Answer

Dissolved oxygen and temperature

Answer

Trout seek cooler, well-oxygenated water, so the combination of dissolved oxygen levels and temperature determines their depth distribution in summer.

CORE - Conservation and Outdoor Recreation Education Practice Test

CORE - Conservation and Outdoor Recreation Education Practice Test

CORE Aquatic Education and Fishing Skills 2