IUCN threat status:

Least Concern (LC)

Comprehensive Description

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Biology

Found in marginal swamps and backwaters of rivers and lakes (Ref. 30488). It is associated strongly with life of aquatic plants in terms of breeding and feeding ecologies (Ref. 30558). Nests are made in weedy areas (Ref. 30558). It normally lives on flood plains and when these dry up, during the dry season, it secretes a thin slime around itself which dries into a fragile cocoon; it can exist in this state for over a year, although normally it hibernates only from the end of one wet season to the start of the next (Ref. 3023, Ref. 30558). For hibernating the fish literally chews its way into the substrate ejecting mud out of its gill openings; it may reach a depth of 3-25 cm below the bottom depending on the length of the fish; the lungfish wriggles around, thereby hollowing out a bulb-shaped chamber and coming to rest with its nose pointing upward; they breathe air at the mouth of the chamber's tube and then sink back into the expanded part of the chamber (Ref. 36739). As the water disappears the respiratory trips cease; air reaches the fish via the tube to the surface (Ref. 36739). Also under aquatic conditions this lungfish can survive more than three and half years of starvation; it shows the same behavior - no motion and same body posture - as an aestivating specimen (Ref. 51339). Carnivorous, food includes mollusks (Ref. 30488), but also frogs, fish and seed (Ref. 13851); in Kenya it feeds mostly on plant material, like roots (Ref. 30558).

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