Dugong (Dugong dugon) in the wild — Catch'Um species field guide

Dugong (Dugong dugon) wildlife photograph

Overview

Dugongs are marine mammals related to manatees, specialised for grazing seagrass in shallow tropical and subtropical seas. Their downturned snout and slow surface rolls mark quiet coastal meadows.

For Australia and Indonesia collectors, a dugong trail through seagrass is a rare coastal card — gentle, vulnerable, and habitat-tied.

Scientific nameDugong dugon
Length2.5–3.5 m
Weight250–500 kg
LifespanAround 50–70 years in the wild
DietGraze seagrass almost…
ConservationVulnerable
RegionSeagrass Meadows

Habitat

Seagrass meadows
Shallow coastal bays
Tropical lagoons

Shallow coastal waters with extensive seagrass beds across the tropical Indo-West Pacific, from East Africa and the Red Sea to Australia and the western Pacific islands.

Countries found

Field notes

Field scale for the Dugong: length around 2.5-3.5 m; weight 250-500 kg. Typical lifespan: Around 50-70 years in the wild.

When you are scanning habitat, prioritise seagrass meadows, shallow coastal bays, and tropical lagoons. Those settings are where a clean look and a usable photo are most likely.

Quick ID anchor: Grey spindle-shaped body, paddle forelimbs, fluked tail (not rounded like a manatee's), and downturned muzzle. Confirm with behaviour and habitat before you log the discovery.

Diet

Graze seagrass almost exclusively, cropping leaves and sometimes digging rhizomes.

Leave distinctive feeding trails across shallow meadows.

Behaviour

Generally solitary or in mother–calf pairs; small groups gather on rich seagrass.

Surface to breathe with nostrils only; rest in deeper holes nearby.

How to identify

Grey spindle-shaped body, paddle forelimbs, fluked tail (not rounded like a manatee's), and downturned muzzle.

No dorsal fin; adults may show tusks in males.

Interesting facts

01
Only living member of the family Dugongidae.
02
Strict seagrass grazer — often called a sea cow.
03
Down-turned snout is adapted for bottom feeding.
04
Can stay submerged for several minutes between breaths.
05
Calves stay with mothers for more than a year.
06
Australia holds some of the world's largest remaining populations.

Conservation status

VU: Vulnerable

Dugongs are Vulnerable. Seagrass loss, boat strikes, fishing nets, and hunting have reduced many populations. Healthy meadows in northern Australia and parts of Indonesia are critical.

Sources: IUCN Red List