Moderator: Mustafa
Any guess is better than no guesses at allMustafa wrote:Anybody's guess is as good as mine. In other words, I have never seen this shrimp before.
Yeah... I could figure out that it's not C.japonica, for I've had some japonicas before in the same aquarium with these.Mustafa wrote: It's definitely not C. japonica. It does seem to have small eggs so it most likely needs brackish water for its larvae. Correct me if i am wrong about the egg size.
*fingers crossed*I knew it wouldn't be that easyMustafa wrote:It's definitely not Palaemon.
As to the other shrimp...it's still anybody's guess. By the way...as much as I appreciated Aquajapan, it did have tons of mistakes...so even the species you listed above might just not be the species that were scientifically described as such.
Mustafa
--You're not going to find reliable info on the internet. You would have to search scientific journals (such as crustaceana) which you can access through research libraries at Universities (if they let you in) or you subscribe to very expensive services that deliver you articles you are looking for. This is not an easy hobby to be in if you want to be exact....Sami wrote:Can you tell me any references where I could find specifications on the common shrimp-genus (Caridina, Neocaridina, Palaemon etc.)?
--Well, distinguishing between Palaemonid shrimp and Atyid shrimp is actually very easy. Just take one look at a Red Cherry Shrimp and any Macrobrachium or Palaemontes and you will see the differences almost immediately. To figure out the exact species of shrimp is more difficult. One difficulty is that the vast majority of shrimp are not even described yet and the other is that you have to go through tons of old journal literature and compare your shrimp under the microscope with the body measurements and features for the specimen used to describe the species.How can you tell, to which genus each shrimp belongs?
--It's Caridina gracilirostris, although there are several Caridina shrimp wtih a long rostrum...so depending on the imported shrimp you might have some other type of Caridina sp. However, it's definitely NOT Palaemon! The Palaemon designation you find is just plain *nonsense* given to the shrimp by people who do not have the slightest idea what they are talking about.What I'm particulary interested in, is telling to which family does the red-nose shrimp belong to - Palaemon (scarletti) or Caridina (gracilirostris)?
The university library sounds good, as I study in the Faculty of Mathematics and Science (to which limnology and biology belong).Mustafa wrote: --You're not going to find reliable info on the internet. You would have to search scientific journals (such as crustaceana) which you can access through research libraries at Universities (if they let you in) or you subscribe to very expensive services that deliver you articles you are looking for. This is not an easy hobby to be in if you want to be exact....
Let's see if I got it right.--Well, distinguishing between Palaemonid shrimp and Atyid shrimp is actually very easy. Just take one look at a Red Cherry Shrimp and any Macrobrachium or Palaemontes and you will see the differences almost immediately. To figure out the exact species of shrimp is more difficult. One difficulty is that the vast majority of shrimp are not even described yet and the other is that you have to go through tons of old journal literature and compare your shrimp under the microscope with the body measurements and features for the specimen used to describe the species.
I must say I feel lucky to find this discussion forum--It's Caridina gracilirostris, although there are several Caridina shrimp wtih a long rostrum...so depending on the imported shrimp you might have some other type of Caridina sp. However, it's definitely NOT Palaemon! The Palaemon designation you find is just plain *nonsense* given to the shrimp by people who do not have the slightest idea what they are talking about.
Palaemon are Palaemonid shrimp and the "Red Nose" is clearly an Atyid shrimp (as are all other "algae eating" shrimp and filter shrimp).
To give you an idea....the scientific name for a polar bear is Ursus arctos and for a wolf it's Canis lupus. Bear and wolf are actually remotely related. Now...if a new species of wolf were discovered and "imported", then giving those "wolves" the scientific name "Ursus sp." would be about equivalent to calling an Atyid shrimp "Palaemon." It's just plain nonsense and anyone with half a clue about shrimp would never even think about committing such a fallacy.
It's not a collection of books. It's a collection of journals. You university seems to only have very limited issues.Sami wrote: I made a search to library databases and I found this:
Crustaceana, Leiden : Brill, 1968-1991, ISSN: 0011-216X
Is this what you were referring to? It seems to be a collection of books.
--Tons...however, looking by publication is not the way to go. You have to search by citatations and scientific names and see what journals come out in the search. There are too many journals to mention them all here. Additionally, many countries and museums have their own journals.Are there any other publications you could recommend?
--Unfortunately wrong.Let's see if I got it right.
Statement 1: Palaemonid shrimps are mostly brackish and seawater living shrimps.
Statement 2: Palaemonids mostly live in mid-water than on the bottom.
Palaemonid shrimp live in freshwater, brackish and saltwater. They also aren't "floating" shrimp...so they obligatorily live on the bottom, just like most other shrimp. --"Typical" is a tricky word. It's *one* type of Palaemonid shrimp. Macrobrachium are palaemonid shrimp, too.Would you say this looks like a typical palaemonid -shrimp?
--Glad you like it here.I must say I feel lucky to find this discussion forum
Thank you for enlightenment.
