Looking for 'local' Caridina shrimps

[stormhawk]

OT: Navanod, are there copies of Icthyological Exploration of Freshwaters by Pfeil Verlag in the NUS library? There are some description papers that I need in PDF format, for my collection on killies.

On-Topic: I think I know the area you are referring to avex. I passed through the area during my Scout Exploration Test hike in my sec school days. Found several empty blanks along the path. There were many streams in the area.

[avex30]

Haha yea, saw plenty of interesting plants there too! There were pitcher plants and african tulips and flame of the forest, to name a few I recognized. Didn't see anything in the water though, although there seemed to be a lot of fish at one part of the water.

Plants is over the farside of the more forested part where the army train is more near to the catchment. I remember cause during that time a group of us was suppose to play enemy to while waiting for the troops some of us wonder in further and found it. it was a big deep catchment alot of floating plants i was looking at the fishes and spotted a few breed of cause during that time i was not into shrimp keeping hahaha.

OT: Navanod, are there copies of Icthyological Exploration of Freshwaters by Pfeil Verlag in the NUS library? There are some description papers that I need in PDF format, for my collection on killies.

On-Topic: I think I know the area you are referring to avex. I passed through the area during my Scout Exploration Test hike in my sec school days. Found several empty blanks along the path. There were many streams in the area.

Yea there are streams leading to all this catchment i think there a PUB fenching around some part of the place but is able to access cause i see some hikers in the woods.

[Navanod]

OT: Navanod, are there copies of Icthyological Exploration of Freshwaters by Pfeil Verlag in the NUS library? There are some description papers that I need in PDF format, for my collection on killies.

All 20 volumes, from 1990-2009.
Sadly, they're all in hardcopies and I'm not exactly based in the main campus right now so I can't just stroll over and grab it.
Do you have a particular paper in mind? I may be able to pull individual e-papers up if it is linked to an online journal

[Shaihulud]

Thanks everyone for the input and discussions!

Shaihulud: I'm curious as to where you obtained these shrimps. Are they from open-country streams? Ponds? Canals? The forest species like the Temasek shrimp are most probably not suitable for my setup, and if you say they're really hardy, they might just be what I want for my rural stream / reservoir setup. Have they been able to breed in freshwater? The only possible problem is the size though, as it might mean they're at risk of getting nibbled on by the guppies, bettas and even small gobies in my tank.

Actually got them from the pond at sci centre where I work. It sits besides Jurong lake, so it may have originated from there, the students catch them when they come for classes. They breed in feshwater and I have been keeping a colony alive in a 20 gallon tank for years with endlers, eels and bichirs, they survive all this. You are welcome to breeding them, and identify them.

[Johora]

If that's the case it's likely to be Macrobrachium nipponense.

[Draka]

Eh bro, from the size, might not be nipponese...

[Johora]

True, hard to tell without better pics.

[Trichopsis]

I've been wanting to reply for the last few days, but didn't have the time.

Hi Pseudogobiopsis, are you also working in NUS? Or perhaps NTU?
Your knowledge seemed to hint at more than just hobbyist interests, hehe.

Heh, yes I'm currently working at NUS. But I've always had a very academic interest in all sorts of animals. I've always been a passionate amateur naturalist. And I'll admit I've always had a tendency to write with a bit of an academic slant, even before being employed there.

Shaihulud: Very interesting... I actually wouldn't mind getting a bunch from you to ID and raise. It would be worth a shot to see if you do indeed have one of the local freshwater Caridina, and if they can survive in my system, especially with all the hiding places and crevices that the fishes can't reach.

[Shaihulud]

@Pseudogobiopsis, my contact is 85411744.

[Draka]

From the small size, seems likely to be caridina or even neocaridina. Keep us updated with the ID please!

[Trichopsis]

Shaihulud: That would be awesome!

Will drop you an SMS later in the morning.

[wklotz]

Hi!

I've found photos of what are supposed to be Caridina sumatrensis on Flickr here and here, as well as some photos here, but I honestly have no experience in identifying the various species of shrimps.

Non of the pics in the links is showing true Caridina sumatrensis. Most of the pics are showing Caridina typus instead. A pic of C. sumatrensis you can find at: http://www.crusta10.de/templates/ima...trensis_1..jpg
Few other pics of Singaporean shrimp (C. temasek, C. malayensis, C. johnsoni) you can also found in our gallery. Almost all freshwater shrimp occurring in Singaporean waters are less colored, thus not popular in aquarium trade.

Cheers
Werner

[Trichopsis]

wklotz: Thanks for the pointers!

So is colour a reliable way to identify the species at a glance, if encountered in the LFS?

[stormhawk]

The shape of the rostrum should be important, since colors can fade in the bag, especially with LFS that do not really "house" their shrimps.

Hello Werner,

I noticed your photo of a female C. temasek with eggs. Does it produce pelagic larvae after hatching? Or miniature shrimplets instead?

[wklotz]

Hi all!

So is colour a reliable way to identify the species at a glance, if encountered in the LFS?

No, esp. in the most Singapoeran species. Just C. gracilirostris can be ID by life coloration.

I noticed your photo of a female C. temasek with eggs. Does it produce pelagic larvae after hatching? Or miniature shrimplets instead?

The larval development of C. temasek was never been studied until today. But according to the egg size I am quite sure, the development type will be abbreviated, thus the freshly hatched larvae will be benthic.

Greetings
Werner

[stormhawk]

Thanks for your insight Werner. Are they present in Germany/Austria at the moment? Or is the current focus there on CRS and Sulawesi Shrimps?

[wklotz]

Thanks for your insight Werner. Are they present in Germany/Austria at the moment? Or is the current focus there on CRS and Sulawesi Shrimps?

Non of the Singaporean freshwater species are sold in European pet shops. Ther was one shipment of C. temasek (from Malaysia, not from Singapore) some years ago. But other species (C. malayensis, C. johnsoni, M. malayanum, P. amnicus,..) were never seen here.
The aquarium trade ist still dominated by bred Chinese/Taiwan Bee Shrimp variants.
Also in shrimp from the Central Lakes of Sulawesi just C. dennerli is frequently imported. Other species (C. spinata, C. woltereckae, C. caerulea) now are infrequently sold compared to the Sulawesi boom 3 years ago.

regards
Werner