Pseudoplatystoma orinocoense pics. Rare TSN?

  • We are currently upgrading MFK. thanks! -neo
wednesday13 said:
thebiggerthebetter thebiggerthebetter , i suppose i try and be overly nice or politacally correct these days as to not turn anyone away from the hobby...or from keeping big cats as ive seen a steady decline in what we do from "scare tactics" lol.. Sure adults are easier to tell apart but as you've said theres always chance pictures/info are not accurate in the first place. Look at the whole goonch sp. re identification. plenty of scientific papers leading people in the wrong direction very similiar 2 the tsn sp. so who is right lol? More i look at pictures from other sources and not my own fish it gets confusing. so i offer a bit of chance in any of my own opinions. All i know for certain is i have 3 distinctly different specimen/specie that ive watched change over the yrs. so i observe and report... its taken me yrs to i.d. them and whos 2 say there accurate with so many variables across the board... i.e. collections points, wild hybrids, new species, farm raised, man made hybrids, inter specie variation...and really no solid info 2 back anything up. i give up haha...
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How I feel with wolves lol I just help as much as I can
 
This has all actually been more helpful and more informative than I expected. I'll keep up with pics and such as these fish grow. I may end up with an indoor pond after all. Lol.
 
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Comanswoodwork said:
This has all actually been more helpful and more informative than I expected. I'll keep up with pics and such as these fish grow. I may end up with an indoor pond after all. Lol.
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now thats the spirit! lol... :) u got a good year or so to figure out their next tank if they surpass 24"... 300gal rubbermaids can be had for $150-250 among many other options on a budget.
 
wednesday13 said:
thebiggerthebetter thebiggerthebetter , i suppose i try and be overly nice or politacally correct these days as to not turn anyone away from the hobby...or from keeping big cats as ive seen a steady decline in what we do from "scare tactics" lol.. Sure adults are easier to tell apart but as you've said theres always chance pictures/info are not accurate in the first place. Look at the whole goonch sp. re identification. plenty of scientific papers leading people in the wrong direction very similiar 2 the tsn sp. so who is right lol? More i look at pictures from other sources and not my own fish it gets confusing. so i offer a bit of chance in any of my own opinions. All i know for certain is i have 3 distinctly different specimen/specie that ive watched change over the yrs. so i observe and report... its taken me yrs to i.d. them and whos 2 say there accurate with so many variables across the board... i.e. collections points, wild hybrids, new species, farm raised, man made hybrids, inter specie variation...and really no solid info 2 back anything up. i give up haha...
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All agreeable but I'd not throw out baby with the dirty water, if I may... We gotta stick to things that we, as a community, are reasonably sure of until proven otherwise, I think.

IIRC, reticulatum is recognized by both most recent and trustworthy revisions, the one that recognizes only 4 TSN species and the other that recognizes 8. There is one more species from Peru recognized in a separate paper that's similar to punctifer. To the best of my memory and knowledge.

Retic and corruscans appear to be the two stable (as in always looking consistent), unmistakable species in the TSN family, the subadult and adult pattern of which is distinctly different from the rest of stripey, tigrinum look-alikes, who have more or less stripes that may or may not join here or there and who may or may not have a bit of spotting here or there... I think this is the cloud of most uncertainty to us hobbyists and laymen... (someone, please, show me wrong).

I believe humble mindedness is the most desirable trait but on a public, educational forum it'd be more befitting to followers like myself, not trail guides in the TSN wonderland like yourself. Nevertheless, look at me professing what you ought to say or do. Yea, I'm an enigma wrapped in a sushi :)

(Tuna sounds nice.)

(TSN)
 
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Could anyone possibly provide links to these articles regarding the various species? I'm always looking to learn something new.
 
First line in this stickie will pull up the most recent revision that recognizes 8 species: http://www.monsterfishkeepers.com/forums/threads/tsn-id-chart-pseudoplatystoma.322161/

This is the paper: Taxonomy of the catfish genus Pseudoplatystoma Bleeker (Siluriformes: Pimelodidae) with recognition of eight species URIEL ANGEL BUITRAGO–SUÁREZ and BROOKS M. BURR, 2007 http://www.mapress.com/zootaxa/2007f/zt01512p038.pdf

But a later paper recognized only 4, with caveats; Molecular systematics of the Neotropical shovelnose catfish genus Pseudoplatystoma Bleeker 1862 based on nuclear and mtDNA markers L.F. Carvalho-Costa, N.M. Piorski, S.C. Willis, P.M. Galetti and G. Ortí. 2011: http://www.planetcatfish.com/forum/viewtopic.php?t=32320

Prior to all that, only 3 were recognized, e.g., by
Lundberg, J.G. & Littmann, M.W. (2003) Family Pimelodidae (Long–whiskered catfishes). In: Reis, R., Kullander, S.O. & Ferraris, C.J. Jr. (Eds.). Check List of the Freshwater Fishes of South and Central America. Edipucrs, Porto Alegre, pp 432–455
 
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Handsome fish! I like how the white line goes all the way around the edge of the pelvic fin.
 
I forgot to make a mention that it appears I was wrong that both revisions recognized the reticulatum. It looks to be only included in the one that proposed 8 species.
 
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