It's Tuesday again (at least on this side of the world) and time for a new post. I'm glad you're not bored so far, so lets continue! .
This time as promised: antenna coloration.
For me, a PRL shrimp is only complete with white colored antenna's. Without it, it looks like a normal shrimp. I cull out all shrimp with no or bad antenna coloration. So far just one exception of one piece with very very beautiful red and white, I keep that one and hope the offspring will have full white colored antenna's instead.
When talking about the antenna's we are talking about a lot of parts. I'm not an biologist, but I've looked it up:
The antenna starts with a thicker part and then the actual small antenna. A total of 6. But most people talking about antenna coloration are talking about the thick part. I've never seen the thin part also colored like Sulawesi shrimp have. This is very very rare among Cardina shrimp. Still I hope to breed it one day if possible.
1. This are a 4 small antenna attached to the upper tick antenna part.
2. This are the two long antenna's attached to the thick part below.
3. This is a part in the middle. I believe you should not call it an antenna, but with the naked eye it just seems to be a part of it. Sometimes the shrimp moves this parts sideways (to clean them?) and you can see them.
Sulawesi shrimp, full colored white antenna's up till the end:
Back to the PRL antenna. When you look close, almost without exception there is some red in it. Especially on the middle antenna part (nr. 3 in the illustration). When the antenna is red, it looks like it has no color with the naked eye. Because of the contrast I guess, so I always aim for a least full white of the upper tick part (nr. 1 in the illustration). This has the most effect when you see them in real life.
Red colored antenna's:
Looks nice hu? But only on a macro image, in real life this looks not very nice at all.
This is an example of a piece with white colored upper part (nr. 1) but red or no color at the other parts:
Or this one, with more red in it:
Most of the time this will be enough to give the shrimp a good look. But when the other parts are also white it shines even more.
Like this one that has almost completely white only, just a small touch of red. Again, with the naked eye, you can't see this small red spots:
This is the same shrimp as used before in this topic:
I'm sorry if the pictures a not top quality. I've had little time and to show the antenna's I have to use a lot of 'digital zoom' (crop) an this makes it even worse. But beside that I think this is a good example of antenna coloration.
Next time I hope to show something about.... surprise . I will first contact some people with PRL/JRB to see if they got some images of the subject I have in mind.