Learn About Salmon Fish: Habitat, Diet, and Migration

Question 1

What is a distinctive characteristic of salmon's life cycle?

Accepted Answer

Involves migration between freshwater and saltwater

Answer

Begins and ends in saltwater

Answer

Exclusively takes place in freshwater

Answer

Only occurs in saltwater habitats

Question 2

Where do salmon typically lay their eggs?

Accepted Answer

Freshwater rivers or streams

Answer

Saltwater lakes

Answer

Deep ocean waters

Answer

Sandy beaches

Question 3

Which salmon species is the largest in size?

Accepted Answer

Chinook salmon

Answer

Sockeye salmon

Answer

Coho salmon

Answer

Pink salmon

Question 4

What do adult salmon mainly eat?

Accepted Answer

Small fish and invertebrates

Answer

Aquatic plants

Answer

Microscopic organisms

Answer

Fallen fruit

Question 5

What is the term used to describe salmon's journey back to their birthplace to spawn?

Accepted Answer

Spawning run

Answer

Migration

Answer

Upstream journey

Answer

Downstream migration

Question 6

Which adaptation helps salmon navigate challenging obstacles during their migration?

Accepted Answer

Powerful jumping ability

Answer

Enhanced sense of smell

Answer

Thick, protective scales

Answer

Ability to breathe air

Question 7

What is the primary food source for adult salmon in the ocean?

Accepted Answer

Small fish and squid

Answer

Insects

Answer

Plankton

Answer

Kelp

Question 8

Which type of migration do salmon undertake to return to their spawning grounds?

Accepted Answer

Diadromous

Answer

Horizontal

Answer

Vertical

Answer

Nocturnal

Question 9

Which of the following is the largest species of salmon?

Accepted Answer

Chinook salmon

Answer

Coho salmon

Answer

Sockeye salmon

Answer

Pink salmon

Question 10

What is the term for the bright red color that male salmon develop during spawning season?

Accepted Answer

Kype

Answer

Humpback

Answer

Milt

Answer

Parr

Question 11

Which of the following is NOT a characteristic of salmon?

Accepted Answer

They exclusively live in freshwater.

Answer

They migrate long distances to spawn.

Answer

They have a keen sense of smell.

Answer

They are anadromous fish.

Question 12

What is the process called when salmon return to their birthplace to spawn?

Accepted Answer

Spawning run

Answer

Migration

Answer

Anadromy

Answer

Catadromy

Question 13

Which factor poses the greatest threat to salmon populations?

Accepted Answer

Habitat loss due to human activities

Answer

Overfishing

Answer

Climate change

Answer

Pollution

Question 14

What is a juvenile salmon that lives in freshwater called?

Accepted Answer

A parr

Answer

An adult salmon

Answer

A type of salmon born in the ocean

Answer

A salmon that has died after spawning

Question 15

Which of the following is NOT a species of salmon?

Accepted Answer

Sturgeon

Answer

Chinook salmon

Answer

Coho salmon

Answer

Sockeye salmon

Question 16

What distinct trait sets salmon apart from other fish species?

Accepted Answer

Returning to their birthplace to reproduce

Answer

Exceptional jumping ability

Answer

Complete metamorphosis throughout their life cycle

Answer

Possessing a swim bladder for buoyancy

Question 17

What term describes the journey salmon undertake from feeding grounds to breeding grounds?

Accepted Answer

Migration

Answer

Spawning voyage

Answer

Upstream expedition

Answer

Homing instinct

Question 18

Which salmon species is renowned for its size and valued flesh?

Accepted Answer

Chinook salmon

Answer

Coho salmon

Answer

Sockeye salmon

Answer

Pink salmon

Question 19

What is the scientific name for the most commonly found salmon species in the western United States?

Accepted Answer

Oncorhynchus mykiss

Answer

Salmo salar

Answer

Oncorhynchus tshawytscha

Answer

Oncorhynchus keta

Question 20

When salmon return to their freshwater spawning grounds, it's called:

Accepted Answer

Spawning

Answer

Migration

Answer

Smolting

Answer

Alevins

Question 21

What is the primary food source for juvenile salmon in the ocean?

Accepted Answer

Zooplankton

Answer

Phytoplankton

Answer

Small fish

Answer

Algae

Question 22

Which hormone is responsible for triggering the transformation of juvenile salmon into smolts?

Accepted Answer

Thyroid hormone

Answer

Epinephrine

Answer

Cortisol

Answer

Insulin

Question 23

What substance gives salmon its distinctive pink or red color?

Accepted Answer

Astaxanthin

Answer

Myoglobin

Answer

Hemoglobin

Answer

Carotenoids

Question 24

Which of the following is the most distinctive characteristic of salmon?

Accepted Answer

They have an anadromous life cycle, migrating from freshwater to saltwater and back.

Answer

They are able to change color and camouflage themselves.

Answer

They have a lateral line that helps them detect movement in the water.

Answer

They lack a swim bladder, which allows them to stay submerged for extended periods.

Question 25

What is the term for a juvenile salmon that has recently hatched and is still in the gravel bed?

Accepted Answer

Fry

Answer

Parr

Answer

Smolt

Answer

Kelt

Question 26

Which species of Pacific salmon is known for its large size?

Accepted Answer

Chinook salmon

Answer

Coho salmon

Answer

Pink salmon

Answer

Sockeye salmon

Question 27

What is the main function of the olfactory system in salmon?

Accepted Answer

To help them navigate back to their natal stream for spawning.

Answer

To detect potential predators and prey.

Answer

To communicate with other salmon.

Answer

To regulate their body temperature.

Question 28

Which salmon species is the biggest and can live in both freshwater and saltwater environments?

Accepted Answer

Chinook Salmon

Answer

Sockeye Salmon

Answer

Coho Salmon

Answer

Pink Salmon

Question 29

What is the scientific name for the Atlantic salmon?

Accepted Answer

Salmo salar

Answer

Oncorhynchus kisutch

Answer

Salmo trutta

Answer

Oncorhynchus mykiss

Question 30

What is the name of the process where young salmon migrate from freshwater rivers to the ocean?

Accepted Answer

Smoltification

Answer

Spawning

Answer

Migration

Answer

Metamorphosis

Question 31

Which of the following is NOT a conservation measure aimed at protecting salmon populations?

Accepted Answer

Increased fishing

Answer

Habitat restoration

Answer

Hatchery programs

Answer

Reducing overfishing

Question 32

What distinct trait sets salmon apart from other fish species?

Accepted Answer

Their tendency to migrate to their birthplace for reproduction

Answer

Their ability to leap high above the water's surface

Answer

Their diet exclusively consisting of crustaceans

Answer

Their capacity to change color for camouflage purposes

Question 33

What is the term for the journey salmon undertake to return to their birthplace for spawning?

Accepted Answer

Migration

Answer

Spawning

Answer

Fry

Answer

Smolt

Question 34

Which salmon species is known for its impressive size and aggressive behavior?

Accepted Answer

Chinook

Answer

Coho

Answer

Pink

Answer

Sockeye

Question 35

Which of the following is NOT a measure employed to protect salmon populations?

Accepted Answer

Introducing non-native salmon species

Answer

Restricting fishing seasons

Answer

Restoring their spawning grounds

Answer

Educating the public about salmon conservation

Question 36

What is the name of the newly hatched offspring of salmon?

Accepted Answer

Alevin

Answer

Fry

Answer

Parr

Answer

Smolt

Question 37

What is the term for the upstream migration of salmon to their birthplace for spawning?

Accepted Answer

Spawning run

Answer

Seaward migration

Answer

Lateral migration

Answer

Tidal movement

Question 38

What is the scientific name for the genus that includes salmon fish?

Accepted Answer

Oncorhynchus

Answer

Salmo

Answer

Salvelinus

Answer

Thunnus

Question 39

What is the name of the sac attached to a newly hatched salmon that provides nutrients?

Accepted Answer

Yolk sac

Answer

Swim bladder

Answer

Gill plate

Answer

Dorsal fin

Question 40

How does climate change affect salmon populations and their ecosystem, and what are some strategies being used to protect them?

Accepted Answer

Climate change impacts salmon by warming waters and altering precipitation patterns, which in turn disrupt migration, reproduction, and survival.

Answer

Salmon are not impacted by climate change.

Answer

Climate change benefits salmon by creating new habitats and reducing competition.

Answer

There are no strategies being used to protect salmon from climate change.

Question 41

Which characteristic distinguishes salmon fish from other fish species?

Accepted Answer

Anadromous life cycle

Answer

Coldwater habitat

Answer

Scales

Answer

Notochord

Question 42

What is the primary reason why salmon embark on lengthy migrations?

Accepted Answer

To reach spawning grounds

Answer

To escape predators

Answer

To find food

Answer

To seek warmer waters

Question 43

Which type of environment is crucial for salmon survival and reproduction?

Accepted Answer

Cold and well-oxygenated streams and rivers

Answer

Coral reefs

Answer

Estuaries

Answer

Tropical forests

Question 44

Which of the following poses the least threat to salmon populations?

Accepted Answer

Sustainable fishing practices

Answer

Climate change

Answer

Water pollution

Answer

Habitat destruction

Question 45

What is the term for young salmon that have hatched and begun feeding?

Accepted Answer

Fry

Answer

Smolt

Answer

Fingerling

Answer

Parr

Question 46

Which organization is primarily responsible for managing salmon fishing in the United States?

Accepted Answer

National Oceanic and Atmospheric Administration (NOAA)

Answer

Environmental Protection Agency (EPA)

Answer

Fish and Wildlife Service (FWS)

Question 47

What is a key ecological role that salmon play in their ecosystem?

Accepted Answer

Keystone species, supporting a diverse food web

Answer

Decomposers, breaking down organic matter

Answer

Parasites, living off other organisms

Answer

Primary producers, providing food for other organisms

Question 48

Salmon are well-known for their distinctive life cycle. Which of the following best describes this cycle?

Accepted Answer

Anadromous, meaning they migrate from saltwater to freshwater for spawning and reproduction

Answer

Benthic, meaning they live permanently on the bottom of freshwater environments

Answer

Pelagic, meaning they live permanently in the open ocean

Answer

Catadromous, meaning they migrate from freshwater to saltwater for spawning

Question 49

What is the primary reason salmon undertake long-distance migrations?

Accepted Answer

To reach their spawning grounds and ensure the survival of their offspring

Answer

To follow food sources

Answer

To escape unfavorable weather conditions

Answer

To avoid predators

Question 50

During their early life stages, salmon require specific habitat characteristics. Which type of environment is most important for juvenile salmon?

Accepted Answer

Freshwater streams and rivers with ample food, shelter, and good water quality

Answer

Coral reefs with diverse fish populations

Answer

Open ocean with abundant plankton

Answer

Estuaries that provide a transition zone between fresh and saltwater

Question 51

Adult salmon are opportunistic feeders. What is their primary food source?

Accepted Answer

Fish, squid, and other aquatic organisms

Answer

Plankton and small invertebrates

Answer

Aquatic plants and algae

Answer

Terrestrial insects and berries

Question 52

The Pacific salmon species belong to a particular genus. What is the scientific name for this genus?

Accepted Answer

Oncorhynchus

Answer

Clupea

Answer

Salmo

Answer

Thunnus

Question 53

Among the various salmon species, one is known for its impressive size and aggressive behavior. Which species is this?

Accepted Answer

Chinook salmon

Answer

Pink salmon

Answer

Sockeye salmon

Answer

Coho salmon

Question 54

Conservation efforts are crucial for protecting salmon. Among the following, which is NOT a recommended practice for salmon conservation?

Accepted Answer

Destroying or altering salmon spawning grounds

Answer

Educating the public about the importance of salmon and the threats they face

Answer

Restoring degraded habitats and improving water quality

Answer

Enforcing fishing regulations and promoting sustainable fishing practices