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Male at Mbenji Island

Astatotilapia calliptera

© Foto von Ad Konings

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Four new species of Serranochromis described

Four new species of Serranochromis described — Four new species of riverine cichlids in the genus Serranochromis from the Cuanza and Okavango river systems in Angola (to where they are probably endemic) have been described by Jay Stauffer, Paul... mehr

Artprofil

Metriaclima phaeos

Metriaclima phaeos Stauffer, Bowers, Kellogg & McKaye, 1997 — von Ad Konings

A very attractive species with blue-black males and all-yellow females.

Metriaclima xanstomachus

Metriaclima xanstomachus (Stauffer & Boltz, 1989) — von Ad Konings

A rather large mbuna with a yellow throat which seems not overly aggressive.

Wonderful cichlids

Gender determination in cichlids

Gender determination in cichlids — von Juan Miguel Artigas Azas

The topic of this article may be misleading since it does not deal with determining the gender of a specific fish, whether it is a male or a female, but rather about how gender is developed in cichlids after birth. For us humans (and mammals) the gender of an individual is pretty straightforward since the beginning of our lives, but in fish (and many other organisms) it is not always so. In many cichlids the gender is actually plastic, and we are getting to learn more and more about this fact