Introduction to-the-intertidal

Life in the Tidal Zone Survival!

What is an Estuary? An estuary is a semi-enclosed body of water where freshwater meeting and mixes with saltwater.

Tidal Zone Adaptation ,[object Object],[object Object],[object Object],Avoid drying out Protect themselves from predators Anchor themselves to resist waves Limpets shape their shells to fit a specific rock: effective seal against water loss Tube feet of sea star used for locomotion and suction/anchorage Hermit crab hiding in it’s scavenged shell Pipefish well camouflaged in eelgrass bed

Types of Tidal Habitats Sandy Beaches and Mud Flats Rocky Shores Different tidal habitats require different adaptations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Tidal Zones Splash Zone High Tide Zone Middle Tide Zone Low Tide Zone ,[object Object],[object Object],Intertidal Zone High, Mid and Low Tidal habitats are divided into zones based on relative beach location and how often they are covered by water

Splash Zone ,[object Object],[object Object],[object Object],[object Object]

Splash Zone Life Amphipods Periwinkles Isopods Blue-Green Algae Lichen

High Tide Zone ,[object Object],[object Object],[object Object],[object Object]

High Tide Zone Life Barnacles Limpets Shore Crab Rockweed Anemones

[object Object],[object Object],[object Object],[object Object],[object Object],Middle Tide Zone

Middle Tide Zone Life Wrinkled Whelks Pisaster Sea Stars Batillaria snail Japanese Eelgrass Anemones

[object Object],[object Object],[object Object],[object Object],Low Tide Zone

Low Tide Zone Life Native Eelgrass Opalescent Nudibranch (sea slug) Orange Sea Cucumber Black Katy Chiton Tube Worm

Summary Each zone requires unique adaptations for survival Splash Zone High Tide Zone Middle Tide Zone Low Tide Zone Exposure to Water Most time

Introduction to-the-intertidal

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