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Lake Malawi cichlids — species, locations & maps

Lake Malawi cichlids — species, locations & maps
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Tropheops sp. 'band' Nkhata Bay
Genus: Tropheops
Biotope: Shallow intermediate habitats, especially transition zones between rock and sand.
Geographic distribution: Recorded from Nkhata Bay in the shallow intermediate zone.
Typical adult size: Up to approximately 12 cm total length.
Sexual dimorphism: Males are blue-grey; some display a distinct black submarginal band in the dorsal fin. Females are grey with light yellowish-grey fins and are not distinguishable between banded and unbanded forms.
Aggression: Territorial males defend areas in the shallow transition zone; larger males tend to dominate in territorial disputes.
Special notes: Originally separated into two forms, Pseudotropheus ‘tropheops band’ and ‘tropheops no band’, based solely on the presence or absence of a black submarginal band in the dorsal fin of males. Because females are identical and size differences may explain territorial success, these forms are considered here to represent a single species, with unbanded individuals likely being younger males. If ever proven distinct, they would represent one of the smallest known interspecific colour differences among sympatric Lake Malawi cichlids.

Photo: © Ad Konings
Photo: © Ad Konings
Photo: © Mark Thomas
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Lake Malawi cichlids — species, locations & maps.
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