Re: NANFA-- Weird Catfish Behavior

Mark (
Thu, 1 May 2003 22:36:16 -0400

That's very interesting. Sounds like a BAP entry in the making.

For some clue as to what may be happening, look for these changes in
the two fish:

The "male" will have an enlarged head -- it will look wider and
flatter than usual, especially when veiwed from above.

The "female" will not have the enlarged head and will have an
enlarged abdomen as eggs develop. This can best be seen before they
have been fed, so that you are not observing stomach enlargement from
food rather than eggs. It may also be possible to see the color of
the eggs though her skin if they are close to maturity. Please keep
notes on the conditions of the fish, tank, water, lighting and
temperature. We are working on a database of this kind of info for
natives (nanf's). The pairing behavior may be something new that has
not been previously observed (I haven't done any kind of a search to
check this.) Conservation Fisheries may have some applicable info:

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