Pond Boss Forums MANAGING AN EXISTING POND Evaluating and adjusting fish populations Answer to My Question

Bruce:

WRT the CC skull - if possible, measure the mouth gape (width of the mouth). Don't worry if the jaws are stuck partway open - the mouth width on a CC hardly varies while opening. If the CC was a female, total length would have been about 10 times the mouth gape. If it was a male, total length would have been about 7 times the mouth gape. Male CCs have the biggest, most massive heads, so that's the sex I would guess for a CC with a truly massive skull in the absence of any other data.