Atlantic Mudskipper (Periophthalmus barbarus) lives in mangrove estuary and mudflat across West African coast. Its conservation status is Least Concern.
Fascinating facts about the Atlantic Mudskipper
- Atlantic mudskippers can sprint across mudflats using their pelvic and pectoral fins, reaching a body length of up to 25 cm (9.8 in), and still retain the ability to breathe through skin and stored water in their gill chambers. they build mud walls about a metre long to protect food stores and mates. Their semi-aquatic lifestyle shows how a fish can evolve both land-based locomotion and dual respiration to thrive where water and air meet.
- Atlantic mudskippers retreat into burrows that can plunge 1.5 metres deep, creating an air pocket they can gulp for oxygen during low-oxygen periods. This deep refuge not only shields them from predators but also lets them survive high concentrations of industrial toxins like cyanide and ammonia, even actively secreting excess ammonia through their gills in acidic water. Their burrow-based survival strategy highlights the species' resilience in polluted coastal zones.
- Sexual maturity arrives at just over 10 cm, females at 10.2 cm (4.0 in) and males at 10.8 cm (4.3 in), making the Atlantic mudskipper one of the largest mudskipper species. Larger adults can carry thousands of eggs, but only a tiny fraction survive because the eggs are highly vulnerable to predation. This size-linked fecundity shows how growth directly boosts reproductive output, yet the species still faces steep early-life mortality.
- On land, the mudskipper uses a 'hydrodynamic tongue', it scoops water into its mouth, covers prey, then sucks the mixture back to swallow. This technique works both underwater and on mud, though suction is stronger in water and the mouth gape widens there.
- Atlantic mudskippers can live up to 15 years in the wild, but most individuals average around five years.
Sources
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At a glance
RangeWest African coast
HabitatMangrove estuary and mudflat
DietSmall crustaceans & insects
About the Atlantic Mudskipper
In the tranquil shallows of coastal wetlands, the Atlantic Mudskipper navigates its domain with an air of quiet confidence, its pectoral fins beating in a slow, rhythmic motion as it skims across the water's surface. With eyes perched atop its head like sentinels, this remarkable creature surveys its surroundings with an unblinking gaze, ever vigilant for potential threats or unsuspecting prey. As it moves through the muddy landscape, the Mudskipper's unique ability to breathe air and water allows it to thrive in a world where land and sea converge.
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