California Grunion: A Unique Beach Visitor

The video explores the unique spawning behavior of the California Grunion, a fish that comes ashore to lay eggs on Southern California beaches. It highlights the Grunion's life cycle, which is synchronized with the lunar tides, and discusses the threats posed by human activities and environmental changes. Conservation efforts, including citizen science projects, are emphasized to protect this species and its habitat.

What is the primary reason California Grunion visit Southern California beaches?

• To spawn

• To escape predators

• To find food

• To migrate

Which unique behavior is exhibited by the California Grunion during spawning?

• They migrate to freshwater

• They spawn fully out of the water

• They build nests in trees

• They change color

How do the phases of the moon affect the Grunion spawning cycle?

• They determine the temperature of the water

• They influence the tides, which affect spawning

• They change the color of the sand

• They attract predators

What is the greatest threat to the survival of Grunion eggs?

• Strong winds

• Human activities

• Predatory birds

• High temperatures

What is the legal method for catching Grunion?

• Using traps

• Using fishing nets

• With fishing rods

• With bare hands

What percentage of Grunion eggs typically survive to adulthood?

• 10%

• Less than 1%

• 25%

• 50%

How can beach preservation projects negatively impact Grunion?

• By changing the water temperature

• By harming Grunion nests with heavy machinery

• By destroying their food sources

• By increasing the number of predators

What is a potential consequence of shoreline armoring?

• More Grunion runs

• Increased Grunion population

• Elimination of Grunion spawning grounds

• Improved water quality

What is the purpose of the Grunion Greeters citizen science project?

• To monitor Grunion runs along the coast

• To study Grunion diet

• To track Grunion migration patterns

• To increase Grunion population

What motivates volunteers to participate in the Grunion Greeters project?

• Financial incentives

• Scientific recognition

• The opportunity to see something unique

• Free beach access