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Rhinogobius flumineus ‘wolf goby’

Home Forums Fresh and Brackish Water Fishes Rhinogobius flumineus ‘wolf goby’

This topic contains 0 replies, has 1 voice, and was last updated by  Barb Man 2 years, 8 months ago.

Viewing 15 posts - 1 through 15 (of 37 total)
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  • #303428

    mikev
    Participant

    Is anything known about the fish — it was imported as R.brunneus early in 2014. Definitely not brunneus but did anyone figure out what this is?

    (I was initially under impression that they are related to R.diospilus… but after watching them for three days I doubt this… considerably more aggressive too)

    (no photos till I find the camera charger :( ).

    #353624

    mikev
    Participant

    Hmm…. an unusual location per Wetspot’s ebay ad:
    http://www.ebay.com/itm/2-1-25-Wolf-Goby-Rhinogobius-brunneus-Live-Freshwater-Tropical-Fish-Russia-/181539493937

    Does their photo help?

    http://i.ebayimg.com/00/s/NDM5WDEwMDA=/z/xuMAAOxyOalTaQdC/$_57.JPG

    #353631

    Matt
    Keymaster

    Looks a bit like the R. rubromaculatus ‘blue belly type’ from the Ryukyu Islands?

    2014-10-22-16_58_08-Rhinogobius-rubromaculatus-morphological-and-molecular-variation-2005.pdf-Adob.jpg

    #353632

    Plaamoo
    Participant

    I thought it looked like this one?
    http://www.web.forumacvarist.ro/rhinogobius-gigas/

    #353633

    mikev
    Participant

    Real brunneus yes, bot mine are not gigas for sure, not anything around brunneus (this is why my quotes).

    Now, rubros, thanks Matt: I’ve been actually looking at them and thinking “rubros” or not for a few days. Red spots seem to be present… One stopper is that the fish is smaller than rubros — wetpsot had them for a few months before I got them, so they should have reached the adult size. But I think it well may be in this direction.

    (If they are kind of rubros it would be nice…. then they probably will breed in due course).

    BTW, I talking to Jessica about “Russia” in the ebay ad: she said that the fish is from Singapore but eBay wants to have a locale and does not like Singapore and she has no idea why the person who does their ebay ads wrote “Russia”… so scrap that.

    #353634

    Matt
    Keymaster

    Fish might be from Singapore but guess they are wild caught which means Taiwan or Japan imo. No way this is from mainland China, and agree it is not R. gigas since that species should have dark bands on the body as in Jim’s link/our profile, but also think it looks more closely related to R. gigas than ‘our’ R. rubromaculatus. Confused Take it you got some Mike?

    #353637

    mikev
    Participant

    Yes, and will take photos eventually…. ATM I donno where is my camera charger.

    I *think* I have 2m/4f … was supposed to be 3/3 but 2/4 is even better, the males are unfriendly…. more than rubros.
    I have one of the males displaying from a cave but unfortunately he is a nutcase… he chases away others from the entrance irrespective of their sex.

    #353655

    mikev
    Participant

    http://rainbow-fish.org/fishpic/rbrun.jpg

    better later…. male up front, female behind…. I think…

    and I don’t think this is the same species as on Wetspot’s photo….

    #353658

    mikev
    Participant

    Maybe eventually I will have decent photos…. not yet, I’m lousy, and the males are either in the back or moving fast. Still, the best I can do now. Notice the white lower lip, only males have it

    http://rainbow-fish.org/fishpic/rb1.jpg
    http://rainbow-fish.org/fishpic/rb2.jpg

    #353662

    Plaamoo
    Participant

    Doesn’t matter how good your pics are as I can’t view them anyway!

    #353663

    mikev
    Participant

    I can solve that problem! The links to photos are below

    http://rainbow-fish.org/fishpic/rbrun.jpg
    http://rainbow-fish.org/fishpic/rb1.jpg
    http://rainbow-fish.org/fishpic/rb2.jpg

    Also, we know what they are now (thanks a lot to Jutta who I think cannot make it here either): Rhinogobius flumineus

    #353665

    Matt
    Keymaster

    I am deeply sorry about the technical issues guys – if I knew how to fix them I would and it is really getting me down. :(

    Regarding the id – I would be surprised if this is R. flumineus. That species is endemic to Japan and as far as I know there are no exports of wild freshwater fishes from there (?).

    #353681

    mikev
    Participant

    Sure there are exports…. like N.delicata. R. flumineus happens to occur in the locations N.delicata is found, and the import of both species came via Singapore at the same time .. this is no proof, of course, but supporting evidence.

    #353682

    mikev
    Participant

    I am deeply sorry about the technical issues guys – if I knew how to fix them I would and it is really getting me down.

    The login problem seems to have been solved, so some of the lost members may eventually return. Other bugs are unimportant from the point of view of the forum’s survival.

    Basically, you got a long-term problem with using custom software. Sure, if works correctly it offers more than standard forum packages, but maintaining it is a bitch. Perhaps consider adapting a very conservative approach to making any software changes in the future: only bug fixes and local changes that offer large benefits from now on.

    #353700

    Matt
    Keymaster

    @mikev said:
    Sure there are exports…. like N.delicata. R. flumineus happens to occur in the locations N.delicata is found, and the import of both species came via Singapore at the same time .. this is no proof, of course, but supporting evidence.

    Ok, point retracted. :D Makes a lot of sense in that case.

    Re. the technical side of the forum. It is a priority when we finally get around to a proper update. Until then we’re stuck, unfortunately.

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