Mammals crepuscular

West Indian Manatee

Trichechus manatus

The West Indian Manatee is a gentle aquatic giant, often called the 'sea cow' for its peaceful grazing habits. Found in the warm coastal and inland waters of the Americas, these curious mammals are a testament to the beauty of our underwater ecosystems.

4 Sightings

2 Habitats

Quick Identification

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Size

Typically 2.7–3.5 meters (8.9–11.5 feet) long and weighing 200–600 kg (440–1,300 lbs), though some individuals exceed 1,000 kg.

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Colors

Uniformly grayish to brownish-gray, often appearing greener due to algae growth on the skin or lighter due to barnacle attachment.

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Key Features

Large, flat, paddle-shaped tail used for propulsion
Flexible, prehensile upper lip covered in thick sensory whiskers (vibrissae)
Small, widely spaced eyes and no external ear flaps
Thick, wrinkled skin with sparse hair across the body

When You’ll See Them

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Activity pattern crepuscular

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Peak hours 6-9 AM and 4-7 PM, though they surface to breathe and move throughout the day and night.

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Season Year-round, with the highest visibility in Florida springs and canals from November to March.

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Diet Strictly herbivorous 'grazers' that consume over 60 species of underwater plants, including seagrasses, water hyacinths, and mangroves, eating up to 10% of their body weight daily.

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Habitat Warm coastal waters, estuaries, saltwater bays, and freshwater rivers or canals.

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Behavior

West Indian Manatees are gentle, slow-moving giants that spend the majority of their time eating, resting, and traveling. Despite their size, they are incredibly graceful in the water, typically cruising at about 5 miles per hour. While they are often solitary, they are not strictly territorial and are frequently seen in small, informal groups, especially during the winter when they huddle together for warmth near natural springs or power plant discharge pipes.

These mammals are highly curious and use their sensitive facial whiskers to explore their environment and find food. They must surface to breathe air every three to five minutes when active, though they can hold their breath for up to 20 minutes when resting. While generally shy, they are known to occasionally investigate docks or slow-moving boats, though human interaction should always be kept passive to avoid disturbing their natural behaviors.

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Camera Tips

Capturing the West Indian Manatee requires a specialized approach since they are almost entirely aquatic. If you have a backyard dock in a coastal or canal-front area, the best setup is a high-resolution underwater 'action' camera or a specialized aquatic trail camera mounted to a dock piling. Position the camera about 2-3 feet below the low-tide line, angled slightly upward toward the surface. This allows you to capture the manatee's face and unique 'lip-walking' feeding behavior as they graze on algae or vegetation growing on your dock.

For those using standard trail cameras above water, placement is key. Mount your camera on a sturdy post or dock railing overlooking a slow-moving section of water. Look for 'manatee boils'—circular swirls on the water's surface created by their tails—which indicate a high-traffic area. Use a polarising filter over your lens if possible to cut through the water's surface glare, allowing the camera to trigger on the dark shape of the manatee beneath the surface rather than just the ripples.

Time your captures for the early morning or late afternoon when the sun is at an angle, as midday overhead sun can create too much reflection for clear images. In winter, focus your efforts on freshwater canals or areas near warm-water outlets. Avoid using bright artificial lights at night, as this can startle the animals; instead, rely on cameras with high-quality 'no-glow' infrared sensors. Remember that manatees are a protected species, so your camera setup must be entirely passive—never submerge a camera in a way that obstructs their path or attempt to lure them with food or freshwater hoses, which is illegal in many jurisdictions.

Similar Species

Species that look similar or are commonly confused with West Indian Manatee.

Dugong

The dugong has a fluked, whale-like tail and a more downward-turned snout for bottom feeding.

Amazonian Manatee

Smaller in size, strictly freshwater, and often features a distinct bright white or pink patch on the chest.

African Manatee

Very similar in appearance but found only in the coastal waters and rivers of Western Africa; it has a more prominent snout.

Frequently Asked Questions

They are active throughout the 24-hour cycle, but you are most likely to see them moving and surfacing during the crepuscular hours of dawn and dusk. They often spend the middle of the day resting on the bottom or near the surface in sun-warmed waters.

It is important (and often legally required) not to feed or give water to manatees, as this alters their natural behavior. The best way to 'attract' them is to maintain a healthy waterfront by planting native aquatic vegetation and avoiding the use of fertilizers that cause harmful algal blooms.

They are generalist herbivores, eating seagrass, manatee grass, shoal grass, and various freshwater plants like tape grass and water lettuce. They use their prehensile lips to pull plants into their mouths.

Yes, in states like Florida, they are very common in suburban canal systems, especially those that offer protection from cold weather or access to freshwater springs and lush aquatic gardens.

The easiest way is the tail: manatees have a large, rounded, paddle-shaped tail, while dugongs have a fluked tail similar to a whale or dolphin. Additionally, manatees have rougher, more wrinkled skin than the relatively smooth dugong.

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