Where do we find the Parosphromenus and their friends?

As you can see from the top menu, we have a map mod­ule inte­grated into our web­site. Why?

Only for a few other aquar­ium fish is it so impor­tant as for Parosphromenus, to know where they come from. This is because of the exten­sive habi­tat destruc­tion that threat­ens their sur­vival, but also because we have lit­tle knowl­edge of their genetic diver­sity. For some species it is visual: P. nagyi from the region around Kuan­tan looks dif­fer­ent to P. nagyi from the area near Cher­at­ing; in this case the over­all dis­tri­b­u­tion of the species in West Malaysia is quite well known. But for most species we are com­pletely uncer­tain in this respect . One exam­ple is P. parvu­lus: Orig­i­nally we found them from only a few points north west of Ban­jar­masin in Kali­man­tan Ten­gah. Today we know that the species has an appar­ently far greater dis­tri­b­u­tion, and fishes from the area of​Palangkaraya and Babu­gus look a lit­tle dif­fer­ent than fishes from the area of​Tangk­il­ing. But how dif­fer­ent they really are? We do not know.

This is why it is impor­tant that the fishes do not mix while breed­ing. There­fore, one must know where they come from. This is espe­cialy inter­est­ing for forms that are not yet sci­en­tif­i­cally described . They are usu­ally des­ig­nated accord­ing to their local­ity of ori­gin, for exam­ple P. spec. Langgam (a local­ity in Suma­tra) and P. sp. Lundu (Sarawak). Our map mod­ule can now eas­ily assist for the search of such dis­cov­ery loca­tions. Although the satel­lite images, which the cards are based on, are now a lit­tle older, you can see in many places, the begin­nings of for­est destruction.

We are also try­ing to build maps for a dif­fer­ent dis­tri­b­u­tion, that we are inter­ested in as well: the res­i­dences of Parosphromenus aquar­ists. In par­tic­u­lar, those of us who live in a ” Parosphromenus wilder­ness”, where the nodes are very far apart, want to know where the next Parosphromenus enthu­si­ast lives. We are still work­ing on these maps .


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