[BlueTrend Mini Classroom] Sandy Bottom | Marine Habitat & Species Micro-教材 Part 8 ft. Ocean Conservation Administration, Keelung City Government

（Don't forget to turn on the subtitles！）

Marine Habitat Micro-Learning Materials

Under the relentless erosion of ocean waves, rocks are gradually worn down into fragments and fine grains, forming the sandy layer that carpets the seafloor. Because fine, loose sand lacks the rigid structure of rocky reefs — structure that organisms can cling to or shelter within — the density of life on sandy bottoms is lower than in reef zones. Yet even in this sandy habitat, a remarkable community of small animals thrives: some burrow into the sand, while others camouflage themselves to match the sandy floor perfectly. Finding these masters of disguise is a true test of your observational skills! Let's get to know them through our Marine Habitat & Species Micro-Learning Materials!

00:38 Habitat Introduction 01:34 Two-lined Sandperch (female) 01:51 Gravel Round-Water-Spirit Crab 03:02 Eulalia sp. (polychaete worm) 03:39 Black Phyllidia nudibranch 04:45 Two-lined Sandperch (male) 05:25 Tips for Observing Sandy-Bottom Ecosystems 06:29 Reminders for Sandy-Bottom Ecosystem Observation

What Are the Marine Habitat & Species Micro-Learning Materials?

BlueTrend Marine Habitat & Species Micro-Learning Materials Produced in collaboration with the Ocean Affairs Council's Ocean Conservation Administration and the Keelung City Government Our goal is to help everyone rediscover the ocean and its inhabitants in a relaxed, accessible way.

Content includes:

1. Introduction to Wanghaixiang Chaojing Bay
2. Ocean Citizen Scientists
3. Sea Lettuce
4. Tidal Pool
5. Underneath the Rock
6. Crustose Coralline Algae
7. Soft Coral
8. Tree Hydra
9. Crown Sea Urchin
10. Sandy Bottom

Two-lined Sandperch

Gravel Round-Water-Spirit Crab

Eulalia sp. (Polychaete Worm)

Black Phyllidia Nudibranch

Further Reading:

1. Ocean Affairs Council — Ocean Conservation Administration
2. Keelung City Government
3. iOcean Marine Conservation Network
4. BlueTrend Ocean Science Video Channel