String-of-beads Sea Cucumber (Synapta Maculata)

Also known as Tripang, Synaptid Sea Cucumber, Wormfish, Spotted Worm Sea Cucumber, Spotted Sea Cucumber, Banded Sea Cucumber, Conspicuous Sea Cucumber, Tropical Sea Cucumber.

Description

Also known as Tripang, Synaptid Sea Cucumber, Wormfish, Spotted Worm Sea Cucumber, Spotted Sea Cucumber, Banded Sea Cucumber, Conspicuous Sea Cucumber and Tropical Sea Cucumber.

Found singly or in groups on sand and mud areas of lagoons and harbours or in seagrass beds.
Feeding tentacles are active during the day.
They feed on plankton.
Length - 2m
Depth - 1-30m
Widespread Indo-West Pacific

Synaptidae are soft and worm like, often active during the day.
They have no feet and move by contraction of the body.

Some sea cucumbers crawl around on the bottom slowly filtering sand through their tentacles to gather food, while others spread their tentacles above them to capture plankton. A number of sea cucumbers feed nocturnally while others feed by day.
There are sea cucumbers that hardly move while others are more active often perching on tall sponges to feed.
Sea cucumbers often attract hitch-hikers like shrimps and crabs that crawl over their skin, also pearlfish that enter via their anus.
As a means of defence sea cucumbers can expel their intestines or respiratory organs in the form of sticky threads, but these can quickly regenerate.
Juveniles often mimic sea slugs.
Some types of sea cucumbers are edible and considered a delicacy in the Far East countries. (edit)

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