Aquatic Education and Fishing Skills Flashcards
7 cards from real CORE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Aquatic Education and Fishing Skills flashcards as text
Which water quality parameter most directly indicates recent nutrient pollution (such as agricultural runoff) in a stream?
Answer: Nitrate and phosphate concentration
Elevated nitrate and phosphate concentrations are direct indicators of nutrient loading from fertilizers or animal waste, often triggering algal blooms.
What is 'match the hatch' in fly fishing?
Answer: Selecting a fly that imitates the aquatic insects currently emerging on the water
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.
Under most U.S. state regulations, a 'slot limit' for bass means an angler must:
Answer: Keep only fish within a specified length range and release fish above or below it
A slot limit protects a specific size class of fish (often large spawning adults) by requiring anglers to release fish within that length range.
Which invasive species introduced via ballast water has severely disrupted Great Lakes fisheries by filtering phytoplankton that supports the food web?
Answer: Zebra mussel (Dreissena polymorpha)
Zebra mussels filter vast quantities of phytoplankton, collapsing the base of the food web and causing dramatic declines in native fish populations.
When a spinning reel produces consistent line twist, what is the most likely cause?
Answer: Spooling the line against the natural coil direction or reeling against a running fish
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.
A macroinvertebrate survey finds high densities of stonefly (Plecoptera) larvae in a stream. What does this indicate about water quality?
Answer: Clean, well-oxygenated water of high quality
Stonefly larvae are sensitive bioindicators that require cold, fast-moving, well-oxygenated water and are absent from polluted or degraded streams.
What is the recommended minimum distance an angler should maintain from an active osprey or bald eagle nest while fishing nearby wetlands under the Migratory Bird Treaty Act?
Answer: At least 330 feet (approximately 100 meters)
Wildlife agencies generally recommend staying at least 330 feet (100 m) from active raptor nests to avoid flushing incubating adults or disturbing nestlings.