LOGIN

RSS Facebook Twitter YouTube
GLOSSARY       

SEARCHGLOSSARY

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

PROFILESEARCH

Rhinogobius yaoshanensis

Home Forums Fresh and Brackish Water Fishes Rhinogobius yaoshanensis

This topic contains 22 replies, has 3 voices, and was last updated by  Ferrika 5 years, 4 months ago.

Viewing 15 posts - 1 through 15 (of 23 total)
  • Author
    Posts
  • #300051

    Plaamoo
    Participant

    This looks like r. duospilus to me? Is this and old, invalid name??

    http://www.aquabid.com/cgi-bin/auction/auction.cgi?fwmixed&1337999836

    #313824

    Ferrika
    Participant

    Hi Jim,

    This is definitely not a duospilus. But the complex of duospilus-like is very large and it is very difficult to determine them, especially since you do not get all the paper, you need to do so. The name is valid in the fish-database and not a synonym for R. duospilus.
    I thank you for the link, because I have one of its kind and could not quite place him at all so far. Now the child has finally a (even though vague) name 🙂

    #313805

    Plaamoo
    Participant

    Thanks for that Jutta, and….happy to help:smile: I thought duospilus was the only one with the red slashes on the throat. I wish I had room for these. They’re not expensive, though from the pic they look like all males. I did email the seller so might get more info?

    #313803

    Ferrika
    Participant

    Jim, I saw the same as you. Looks like they all are males. This would be a shame. I have one pair, but until today they didn’t spawn. Perhaps I try to keep them on the balcony, so maybe this will bring them in the mood.

    Btw.: Some of the duospilus-complex have one, two or more dark stripes on their gill cover. This and the red spots or stripes on branchiostegal membrane are include attributes for identification. If you look at the animal on your pic, you see 3 stripes and two points. R. duospilus has 2 stripes, no points. And the number of red stripes on branchiostegal membrane are different too.

     

    If you can receive more informations, you would make me happy 😀

    #313730

    mikev
    Participant

    per vendor (I talked to her yesterday) she has 30 of them, so all males would be unlikely… but she does not have a sense on how to sex them. Heiko’s trip photos of r.yaoshanensis should be somehow useful… but it is not obvious it is the same fish, and even if it is i don’t know just how Heiko sexed (and id’d) them.

    #313651

    Plaamoo
    Participant

    Jutta. I assume you’ve seen Heiko’s pictures? Mike just sent me this link. Heiko’s pics of r. yaoshanensis look different than the aquabid fish, don’t you think??

     

    http://www.aquapress-bleher.com/index.php?option=com_content&task=view&id=502

    #313826

    Ferrika
    Participant

    Unfortunately, Heiko’s identifications are not always reliable. He identified the animals probably using a book wherein exist only drawings, but sometimes not carefully enough. That’s why I’m always very careful to take these terms. Too bad, I’ve been trying long to get this book.
    But in this report maybe the right identification, you see, he labled the second animal as “cf. duospilus”. That’s right, because the animal has three stripes, not two. But if he has the R. yaoshanensis identified properly, there is no similarity between the two spezies of Heiko and the auction 🙂

    I think if someone are not concerned almost exclusively with these types, you have no an eye for the full details of which are very tricky. I myself am in the meantime very careful with the identifications. Mostly it is a cf., very rarely I can really say quite clearly: yes, this is this species.

    However, there is obviously two different types in Heiko’s and the auction. Whether one actually both or neither are the Rhinogobius yaoshanensis will be difficult to determine, without papers.

    Mike, was the naming of the sale animals on the basis of Heiko’s pictures?

    The Sexing is by the way always very easy, Mike. The females are almost always relatively colorless and have no colored dorsal fins, at most something blue.

    #313518

    mikev
    Participant

    @Ferrika said:

    Mike, was the naming of the sale animals on the basis of Heiko’s pictures?

     

    Sorry?

    The Sexing is by the way always very easy, Mike. The females are almost always relatively colorless and have no colored dorsal fins, at most something blue.

    Yes, this is one of the things i suggested to the vendor.  I also asked to check if some of the fish does not have red “scarf” (cf. diospilus) and look at the head size (males may have larger and more square-shaped head).  She did not get back to me, however, so i’m not sure I want to go ahead.

    #313503

    Plaamoo
    Participant

    @Ferrika said:
    I think if someone are not concerned almost exclusively with these types, you have no an eye for the full details of which are very tricky.

     That’s why we ask you Jutta:wink: This detective work is part of the fun of fishkeeping! I’m really getting to like these rhino sp.! Need ,more room!!

    The vendor told me that she has emailed her supplier for more info and is awaiting his reply. I also linked her to your site and this thread.

    Having trouble separating the quote from my comment?

    #313489

    mikev
    Participant

    I guess neither of us bid? (I did not, the rationale is that she promised to get back to me about sexing and did not….. and with not knowing what the fish is this set my bidding limit much lower).

    Just for the fun of it… there is another fish on AB which I’m thinking about… listed was a group of 5. Email conversation:

     

    Me: what kind of sex ratio can I expect?

    Vendor: 2:3 or 3:2, higher probability on the former.

     

    Huh? 2m:3f or 2f:3m? Anyway, either way is probably good enough…. but the phrasing is still funny:D

    #313426

    Ferrika
    Participant

    I fear that the supplier is not able to give more information. Unfortunately, getting as many stations between fishing and dealers that is often barely detectable, where the animals came.
    Regarding the issue of gender distribution: in the photo itself in the background, the animals easily recognizable as a male. I have looked at the picture closely and therefore could not see any females.

    Mike, my question to the identification of vendor: I thought perhaps you had already asked on what basis she has identified the animals.

     

    Jim, can decipher it yet 😀

     

    Huh? The auction is closed?

    #313427

    Plaamoo
    Participant

    I didn’t bid, really had no business thinking about it. Not all that cheap in the end. I haven’t heard back from her either. She said she had 27 so they are still available if wanted.

    I agree Jutta. I have requested info so many times from suppliers and never received any. Once they’re bought and paid for, that’s it!

     

    @Mike, it’s always an adventure! Why I usually opt to pay more and have my choice in person. If available that is.

    #313424

    Ferrika
    Participant

    I took a look at the auctions on AB. I’m very amazed, what species are listened there. And the prices… very expensive.

    Jim, did you see, that there are R. leavelli offered? But $15 per animal? Wow! I must think about my prices 🙂

     

    What makes me sad, is this offering: http://www.aquabid.com/cgi-bin/auction/auction.cgi?fw&1338592514 This animals are so very sensitive, they often dosen’t survival the shipping or the changing of water quality. They are in china on the red list and I wonder yet again how they can be exported. I hope, that from this offered group will some animals survival. With us have survived only 4 of 80 animals.

    #313425

    Plaamoo
    Participant

    Yes Jutta, That’s what I paid for my rhinos from the same source.They are the biggest supplier of the West coast.

    I’m not familiar with the  sineleotris saccaharae. I have spoken with them and had fish shipped directly and they seem reasonable. If you have info about the redlist PM me and I’ll call and see what I can find out. From what I read, it seems fish in Europe & the U.K. are generally treated better than here in the land of capitalism.

    #313381

    mikev
    Participant

    @Ferrika said:

    Mike, my question to the identification of vendor: I thought perhaps you had already asked on what basis she has identified the animals.

     

     

    No, I stopped asking this question many years ago. The answer is usually “this is how it appeared on the export list” and this does not mean anything. 

    And yes, the photo _seems_ to show only males.  Interestingly, I saw this fish imported once before, in 2009, see photos here, and again looks like all males?  Too bad I could not go and look at the fish.. 🙁

    $15 for r.leavelli: is this cheap or expensive? (to me this seems cheap… rhinogobius other than r.diospilus seem to be always >$10, can be as high as $40).

Viewing 15 posts - 1 through 15 (of 23 total)

You must be logged in to reply to this topic.