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Congo Killies - PageSuite

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0. DETERS<br />

The mystery of the locality code explained<br />

Killifish names often have strange-looking abbreviations appended, for<br />

example BDBG 04/15 “Lolo1” or LEC 93/4. These codes make it possible<br />

to keep different populations separate and avoid mixing them together<br />

in the aquarium hobby. These codes are assigned at the discretion of the<br />

collectors and are not subject to any particular rules. They contain fundamental<br />

information and also permit the addition of further data. Thus<br />

BDBG stands for the two collectors Bogaerts and de Bruyn, and the G<br />

represents the country of Gabon; 04 indicates the year 2004 and the 15<br />

stands for collecting site no. 15. “Lolo1” refers to the nearby settlement.<br />

Anyone working with these fishes can find out, on the Internet, for<br />

example, who is behind the codes. Sometimes you can find very precise<br />

additional habitat data in the process, including the GPS data of the location,<br />

the time of capture, and other details such as water depth, current<br />

speed, air and water temperatures, water parameters, and other fishes<br />

caught there. Because the codes describe collecting sites, it may well happen<br />

that two different, but syntopic killifish species bear the same code if<br />

they were caught together at the same site.<br />

How far the information goes is at the discretion of the collector. As<br />

can be seen from the other articles here, the taxonomy of Aphyosemion is<br />

still unresolved, and it is likely that we can expect name changes and new<br />

species descriptions. Names may be altered, but locality codes remain unchanged.<br />

In this way it is possible to tell what fish was originally involved,<br />

even after a revision.<br />

Information on Aphyosemion and other killifishes can be found on the<br />

Internet at the American Killifish Association (www.aka.org) or the UK<br />

Killifish site (www.killi.co.uk). For online purchase directly from breeders,<br />

most of them in the United States, www.AquaBid.com usually sells<br />

various killifish and killifish eggs, including Aphyosemion spp., at auction.<br />

deep but may also be very narrow and shallow. Popular<br />

haunts are shallow areas with trailing bank vegetation or<br />

submerged grasses. Depending on the region,<br />

these areas may also be shaded by surrounding<br />

trees. Still, a planted aquarium is appreciated.<br />

But cover in the form of bogwood and oak<br />

leaves is equally well accepted. Caves may be<br />

investigated out of curiosity, but not deliberately<br />

used.<br />

Bright lighting can cause the fishes to become<br />

more timid and their splendid coloration<br />

won’t look as good. If the vegetation is feathery,<br />

there is even a possibility that the fishes<br />

will spawn in it and occasional juveniles will<br />

survive. If this happens regularly and you want<br />

to keep the young, you should remove the larger<br />

youngsters—they often pose a greater danger to<br />

their younger siblings than the parents do.<br />

It should be obvious that an open-topped<br />

aquarium is out of the question because of the<br />

tendency of the fishes to jump. You can, of<br />

course, allow the surface to become<br />

overgrown with floating plants in<br />

order to limit the jumping to some<br />

extent, but this offers no guarantee<br />

that jumping won’t occur.<br />

Smaller aquariums with a volume<br />

of 6–7 gallons (25 L) are also fine if<br />

used as species tanks.<br />

Suitable starter species<br />

There are many species that could be<br />

listed here. I would suggest first and<br />

foremost the coastal species—that is,<br />

those that need to be kept warmer<br />

and will tolerate tap water. The problem<br />

is that with a few exceptions,<br />

they are not available in the trade.<br />

Aphyosemion australe and Aphyosemion<br />

striatum are well known and<br />

available. Aphyosemion marginatum<br />

and Aphyosemion primigenium are at<br />

least as attractive, but are not common<br />

in the trade.<br />

In my opinion there is a further<br />

reason why Aphyosemion species are<br />

not often found in the trade: wildcaught<br />

specimens are rarely available.<br />

As a result, the killies don’t come to<br />

the attention of the public and are<br />

regarded as demanding and exotic.<br />

The deliberate breeding of Aphyosemion<br />

is relatively time-consuming, and<br />

large numbers cannot be produced<br />

without expense and effort. So killifishes<br />

in general, and Aphyosemion<br />

in particular, have for many years remained hobby fishes<br />

reserved for enthusiasts.<br />

Neolebias unifasciatus is found together with Aphyosemion.<br />

39

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