Ecology of Trachelyichthys exilis

For the discussion of catfish systematics. Post here to draw our attention to new publications or to discuss existing works.
Post Reply
User avatar
bekateen
Posts: 7785
Joined: Tue Sep 09, 2014 5:50 pm
I've donated: $40.00!
My articles: 4
My images: 82
My cats species list: 125 (i:37, k:49)
My aquaria list: 30 (i:13)
My BLogs: 37 (i:125, p:1914)
My Wishlist: 39
Spotted: 152
Location 1: USA, California, Stockton
Location 2: USA, California, Stockton
Contact:

Ecology of Trachelyichthys exilis

Post by bekateen »

FREITAS, T. M. D. S., & ZUANON, J. (2022). Filling gaps in the ecological knowledge on Auchenipteridae catfishes (Ostariophysi: Siluriformes): first data for Trachelyichthys exilis. Acta Amazonica, 52, 158-161.
https://doi.org/10.1590/1809-4392202102582

https://www.scielo.br/j/aa/a/DTCNgVrmcy ... t/?lang=en
ABSTRACT
The feeding habit of Trachelyichthys exilis is described for the first time, with additional comments on its growth type and size at sexual maturity. We analyzed 42 specimens from the Amanã Reserve (Amazonas state, Brazil) collected with a seine net amidst stands of floating herbaceous vegetation during the dry season of 2002. Stomach contents revealed a predominantly carnivorous habit (tending to piscivorous), an isometric growth type, and size at maturity around 5.5 cm standard length. Based on the biological characteristics of the consumed prey, we presume that T. exilis forage actively during the twilight/night around and among the root tangle of herbaceous vegetation, preying upon nocturnally active animals such as small fishes and aquatic invertebrates, and/or close to the water surface, where diurnally active prey usually rests. Our findings provide essential information to fill knowledge gaps on the natural history of auchenipterid catfishes, especially on trophic ecology.
KEYWORDS:
feeding; maturity; growth pattern; ecology; Amazonia
Image
http://youtube.com/user/Bekateen1
Would you like to buy my fish? Click HERE for prices.
Buying caves from https://plecocaves.com? Plecocaves is now sponsoring Bekateen's Fishroom. Use coupon code "bekateen" (no quotes) for 15% off your order.
characinkid
Posts: 122
Joined: Tue Sep 02, 2003 10:02 pm
I've donated: $11.00!
My cats species list: 7 (i:3, k:7)
My aquaria list: 2 (i:0)
My BLogs: 3 (i:3, p:148)
My Wishlist: 6
Spotted: 7
Location 1: New England USA
Location 2: NH USA

Re: Ecology of Trachelyichthys exilis

Post by characinkid »

Thank you for posting this, very interesting reading. I have 6 that Ive been keeping for a few months now and they have settled in nicely.
Interesting that they reference that eat small fish in the wild. I can say that, at least in my tank, they dont! I have a couple guppies in there for dither fish and there are a few guppy fry that have not been touched, despite the fact that they would easily fit! Maybe its because they are well fed, but mine are certainly small fish safe. Throw in some sinking pellets, bloodworms etc and they are all over them!

Anyone have any suggestions how to breed these? Any pointers would be appreciated.
Too Many Tanks... Too Many fish... not enough time!!!
User avatar
bekateen
Posts: 7785
Joined: Tue Sep 09, 2014 5:50 pm
I've donated: $40.00!
My articles: 4
My images: 82
My cats species list: 125 (i:37, k:49)
My aquaria list: 30 (i:13)
My BLogs: 37 (i:125, p:1914)
My Wishlist: 39
Spotted: 152
Location 1: USA, California, Stockton
Location 2: USA, California, Stockton
Contact:

Re: Ecology of Trachelyichthys exilis

Post by bekateen »

characinkid wrote: Sat Jul 23, 2022 4:31 pmAnyone have any suggestions how to breed these? Any pointers would be appreciated.
Trachelyichthys exilis spawn : -)
Image
http://youtube.com/user/Bekateen1
Would you like to buy my fish? Click HERE for prices.
Buying caves from https://plecocaves.com? Plecocaves is now sponsoring Bekateen's Fishroom. Use coupon code "bekateen" (no quotes) for 15% off your order.
Post Reply