Maylandia sp. 'dumpy' Nakatenga Island Metriaclima sp. 'dumpy' Nakatenga Island
Genus:
Maylandia
Biotope:
Deep intermediate habitat with sand and widely scattered small rocks, often covered
by a thick layer of muddy sediment. The species inhabits relatively deep areas,
typically between about 13 and 28 m.
Geographic distribution:
Lake Malawi at Maleri Island and Nakantenga Island.
Diet:
Feeds on plankton when rocks are heavily covered with sediment. When Aufwuchs is
available and competition is low, individuals may also utilize this food source,
while remaining close to the substrate.
Breeding:
Males defend territories centered on a spawning cave, usually a tunnel excavated
beneath rocks, and aggressively exclude intruders from these sites.
Aggression:
Territorial males defend spawning sites, but the species is described as relatively
non-aggressive overall due to limited competition for territories in its deep,
sediment-rich habitat.
Special notes:
This small, stocky mbuna closely resembles Cynotilapia sp. ‘lion’ in both shape
and behavior, but differs by possessing bicuspid teeth and is therefore placed in
Maylandia. It lives in deep, low-visibility habitats where few other mbuna
species occur, reducing competition for food and spawning sites. Its apparent
reliance on plankton in heavily sedimented areas is interpreted as an adaptation
to environments where algal growth is limited. A superficially similar form from
Tanzanian waters, previously regarded as conspecific, is now treated as a distinct
species.
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