Peat swamp fishes

[Stuporman]

William, F., H. Beamish, R. B. Beamish & S. L.-H. Lim, 2003. Fish assemblages and habitat in a Malaysian blackwater peat swamp. Environmental Biology of Fishes 68: 1-13.

This paper describes the peat swamp habitat in some detail. Fish fauna and water parameters are provided. Useful information for setting up a biotope tank.

Abstract
Fish captured by electrofishing from lotic reaches within and immediately outside the North Selangor blackwater peat swamp forest were placed into six assemblages. Species richness varied among assemblages from 7 to 32 but most species were not regular members of an assemblage. Swamp water was low in dissolved oxygen and buffering capacity and high in color and acidity. Assemblages were associated with four discrete aggregations of abiotic conditions including oxygen, pH, color, conductivity and organic content of the substrate. Assemblages relatively rich in species and numerical abundance were associated with habitats comparatively high in oxygen and color and low in acidity. Species-poor assemblages were associated with habitats particularly low in oxygen and high in acidity.

Pdf of this available from me if interested.

[budak]

apart from describing the various peat-swamp species... has anybody attempted to develop an explanation of how the peat-swamp environment has influenced the evolutionary pathways of fauna and flora groups that have adapted to it.... certainly the casual observer would see a high rate of endemicism (e.g. wine bettas, paros, Sphaericthys, Barclaya motleyi, crypts), compared to the broader distribution of related species (Rasbora elegans compared to kalochroma, Systoma tetrazona compared to hexazona/pentazona, Trichopsis vittatus vs. peat swamp gouramis) which are not endemic to peat swamps (although they can be found there as well!)..... the strong speciation pressures associated with island life is fairly well studied.... but what about these freshwater microhabitats??

[hwchoy]

budak! Yes! I am ALMOST proud of you :D Systomus ;)

[stormhawk]

HH, I'd like to have the pfd if possible. Thanks. :)

budak, the clue to the evolution is already explained in HH's first post. the bit about species-poor assemblages occurring in habitats with low oxygen levels and high acidity. that would explain the presence of anabantoids and other fish that have evolved to live in such oxygen-poor environments.

i think someone has already studied this in detail but i'm not sure where i read this bit of info. perhaps we can meet up at Kino and try looking for books on this topic.

[Stuporman]

Eh, next time you all want the pdf, must give me email address mah. Unless yours is already in my address book (like Mr. Choy's).
Art has enabled attachment of pdf files, but I am hesitant to post the files here until I am certain that it is legally safe for me to do so.

[bearoma]

bettas@yandex.ru please! :oh:

[sphaerichthys]

Could I have a copy?

sphaerichthys@libero.it

Thank you so much,
Fabio

http://percomorfo.blogspot.com/

[yogigan]

could have a copy pls ganeokgee@gmail.com

thank you

[Marc]

A copy for me, please. :worship:

marc@netzgeist.org

[Karel Zahradka]

Could I have a copy to?
Thanks a lot in advance.
aqualife@telecom.cz

[BojanD]

Also me:
bojan.dolenc@aqua-vita.si
Thanx!

[harnsheng]

can i have it too? harnsheng@hotmail.com
thanks thanks