Why do people do this to saltwater/freshwater fish? Mabey someone should take them to some place they cant live like mars or something and see how they like it!!!
freshwater bamboo shark
- Thread starter dzb912
- Start date
whoever was keeping the bamboos in fresh is an idiot, first off these sharks need a 3foot wide minimum better 4 foot and 6-8 long not 120 gallons, also you stated that you have kept these since 2006 and theyre still tiny (stunted) unless this is a dated vid. this setup is totally unsuitable for these sharks as they also prefer live rock to hide in and iodine added to the water wich i cant imagine they are recieving if being kept in freshwater. on the bull shark study i do believe that bulls travel into fresh water when young to predate, due to freshwater species generally being smaller.
That's terrible. We've got one of these little guys and they're so beautiful and wonderful. I can't imagine why you'd be ok with keeping them in unfavorable conditions. I'd do anything to keep our baby happy and healthy...
billbobthegreat;3006513; said:
the new study showsbull sharks that are born in live there entirelives in freshwater now, and it wasnt young that traveled to freshwater to predate it was older individuals, forbull sharks to regulate their body functions from salt to fish is a very energy consuming process and too taxing on the young, young found in freshwater were either born there or born in brackish, but young found in australia are being born in fresh water rivers and never leaving, now thats a scary thought, going fishing on a litlle boat or swimming in a completely freshwater river and a 8-9 foot 400+ lb shark coming out of nowhere.
bull sharks are proving very adaptable, but i also want to add this doesnt mean take a salt water fish and try to convert to fresh, this species is doing this on its own and giving it self time to adapt, it's cruel to take a salt water born bullshark and throw it in fresh just as it is to take one found in fresh and throw it in salt you'd probly kill it.
are freshwater bullsharks smaller? i have read that landlocked saltwater fish generally dont grow to the same size due to energy being spent on expelling water out. i know st johns river atlantic rays are much smaller than ocean ones
River Sharks - True freshwater sharks?
As mentioned above, there are no known instances of bull sharks breeding in freshwater.
There are however other sharks that might be able to live their entire life in freshwater without having to migrate to marine water to reproduce. Most of these species are found among the river sharks.
River sharks are the popular name for shark species from the genus Glyphis. This group of sharks that looks similar to whaler sharks (Carcharhinus) contains a total of 6 known species. All species are very rare and half of them are still waiting to be scientifically described and given a name. The fact that so little is known about these species and that they earlier often have been misidentified as freshwater bull sharks make it likely that even more species may be found in the future.
River sharks are primarily found in Australia and Asia. The river shark group is currently comprised of the Ganges shark (Glyphis gangeticu) which is found in parts of India and Pakistan, the Speartooth Shark (Glyphis glyphis) that lives in New Guinea, on Borneo, and in Queensland, Australia, and finally the Irrawaddy River Shark (Glyphis siamensis). The Speartooth shark will however most likely be divided into several species in the future, since the different populations are quite dissimilar to each other.
The abovementioned Irrawaddy River Shark (Glyphis siamensis) can be found in waters in the area surrounding Rangoon (Myanmar/Burma). This species was until recently believed to be a variety of bull shark but has since been declared a separate species belonging to the river shark group.
There are also three not yet described species of river shark. (Possibly four, since specimens now have been collected from a part of Borneo where no river shark species are known to exist.) Two of these species can be found in Australia in river systems located in the Northern Territory, primarily in Adelaide River and Alligator River. The last (possibly last two) species has been found on Borneo.
Some very young specimens of river sharks have quite recently been collected from freshwater and this which suggests that these sharks might be able to reproduce in freshwater, which would earn them the label true freshwater sharks. In addition to this, river shark species have never been collected from marine waters (although they have been found in slightly brackish water) which further suggests that these might actually be true freshwater sharks.
It is difficult to obtain more information about the river sharks as they are critically endangered and only found in a small number of habitats, but we will hopefully be able to save these species from extinction and find out if they really are true freshwater sharks that can live there entire life and reproduce in freshwater. Future research might even show us that they, just like the freshwater stingrays of the Amazon, have lost the ability to survive in marine waters.
As mentioned above, there are no known instances of bull sharks breeding in freshwater.
There are however other sharks that might be able to live their entire life in freshwater without having to migrate to marine water to reproduce. Most of these species are found among the river sharks.
River sharks are the popular name for shark species from the genus Glyphis. This group of sharks that looks similar to whaler sharks (Carcharhinus) contains a total of 6 known species. All species are very rare and half of them are still waiting to be scientifically described and given a name. The fact that so little is known about these species and that they earlier often have been misidentified as freshwater bull sharks make it likely that even more species may be found in the future.
River sharks are primarily found in Australia and Asia. The river shark group is currently comprised of the Ganges shark (Glyphis gangeticu) which is found in parts of India and Pakistan, the Speartooth Shark (Glyphis glyphis) that lives in New Guinea, on Borneo, and in Queensland, Australia, and finally the Irrawaddy River Shark (Glyphis siamensis). The Speartooth shark will however most likely be divided into several species in the future, since the different populations are quite dissimilar to each other.
The abovementioned Irrawaddy River Shark (Glyphis siamensis) can be found in waters in the area surrounding Rangoon (Myanmar/Burma). This species was until recently believed to be a variety of bull shark but has since been declared a separate species belonging to the river shark group.
There are also three not yet described species of river shark. (Possibly four, since specimens now have been collected from a part of Borneo where no river shark species are known to exist.) Two of these species can be found in Australia in river systems located in the Northern Territory, primarily in Adelaide River and Alligator River. The last (possibly last two) species has been found on Borneo.
Some very young specimens of river sharks have quite recently been collected from freshwater and this which suggests that these sharks might be able to reproduce in freshwater, which would earn them the label true freshwater sharks. In addition to this, river shark species have never been collected from marine waters (although they have been found in slightly brackish water) which further suggests that these might actually be true freshwater sharks.
It is difficult to obtain more information about the river sharks as they are critically endangered and only found in a small number of habitats, but we will hopefully be able to save these species from extinction and find out if they really are true freshwater sharks that can live there entire life and reproduce in freshwater. Future research might even show us that they, just like the freshwater stingrays of the Amazon, have lost the ability to survive in marine waters.
Some people must really be bored with all of the different freshwater fish that are out there......I'm willing to bet that those poor sharks are long gone by now,probably checked out months ago. 
vitaly;4493200; said:
Not always. They usually are found similar in size to their marine counterparts. However, that being said, larger and larger bull sharks are being found.
HotFuzz;4493490; said:
Do you have the reference for this article? There are documented bulls breeding in freshwater, as well as populations that live their entire lives in freshwater.
