ne of the easiest members of the Loricariidae genera
to keep in my eyes is the Peckoltia genus and when kept in suitable conditions their colours
can be outstanding. This is our factsheet for the
beginning of August 2020, a difficult year for many
of us, and maybe this species and the more colourful
L135 will brighten your day up.
soft dorsal rays?
braueri has had a few L-number names in the not
too recent past, L121, L135 & L305 to name three.
L305 is actually the correct number with the other
two species (L121 & L135) being larger and having
7 soft rays in the dorsal fin (and being more colourful)
whereas P. braueri (L305) has 8 soft dorsal
ray fins. Another species that is alike is Peckoltia
cavatica. Abstract: from Armbruster
& Werneke 2005,Peckoltia
described as a new species and P. braueri
is redescribed. Peckoltia cavatica and P.
braueri differ from all other Peckoltia
by having distal orange bands on the dorsal and caudal
fins when alive and by having the plates and bones
of the head and nape outlined in black. Peckoltia
cavatica is found in the Essequibo River basin,
and P. braueri is found in the Takutu River
basin. The species differ in that P. cavatica
has weaker dorsal saddles, the plates and bones of
the head and nape are completely outlined in black
(vs. partially outlined in P. braueri), lacks
vermiculate lines on the pterotic-supracleithrum,
lacks at least one broken band in the caudal fin,
and has wider orange bands.
caught, Sawariwau River, Guyana
The image above
shows a wild caught specimen from the Sawariwau River
in Guyana which is part of the Takutu River basin.
The dorsal fin does not show any orange bands but
as we all know some wild caught specimens of any fish
can show up differently some time after capture, and
when we put them into our glass boxes. The image below
shows Peckoltia sp. (L135) with more intense
colouration and the less soft rays (7) in the dorsal
fin with different markings with example two black
bands to the dorsal fin.
soft dorsal rays
The only other
described species of Peckoltia similar to
P. braueri in colouration is P. vermiculata,
which can be separated by having vermiculations on
the dorsal head bones and plates other than the pterotic
(vs. colouration confined to the borders between bones
and plates in P. braueri) (Armbruster &
Below in this
map you can see the area pinpointed along the Takutu
River on the border between Brazil and Guyana where
you can find P. braueri and also the the
code number L135 further into Brazil in the Rio Demini,
a tributary of the Rio Negro which for all purposes
is a larger species (15cm) with less soft rays (7)
in the dorsal fin. L121 is also from Guyana and also
has 7 soft dorsal rays and may or not be the same
species as L135.
Distrbution:Brazil, Guyana/border. Type
Takutu River downstream of Lethem.
River Bridge, from Guyana facing Brazil in Lethem
The Takutu River Bridge (Portuguese: Ponte do Rio
Tacutu) is a bridge across the Takutu River, linking
Lethem in Guyana to Bonfim in Brazil. It was completed
in 2009 and opened on 31 July 2009. Its official
inauguration was on 14 September 2009, in the presence
of leaders of both countries. It cost 5 million
USD and was paid for by Brazil. The bridge was a
project within the Initiative for the Integration
of the Regional Infrastructure of South America.
The bridge is the only instance
in the Americas of a land border where drivers must
change from driving on the left (in Guyana) to driving
on the right (in Brazil), or vice versa. The changeover
is achieved by means of a crossover bridge on the
Guyanese side (Wikipedia).
There is still an ongoing confusion concerning L121
from Guyana, L135 from the Rio Demini (Brazil) and
L305 (P. braueri) in some publications.
For example in the paper by Armbruster,
J.W. and D.C. Werneke, 2005
there is a live specimen captioned as P. braueri
with 7 soft dorsal fin rays and of course the debate
with the similarity between the two genera Hemiancistrus
and Peckoltia also goes on so there is
still much work still to be done with these two
genera. At the moment (2020) the consensus is that
L121 and L135 could be the same species and L305
(P. braueri) being a separate species.
For further reading there is an article by U.K.
aquarist Steven Grant from the Catfish Study Group
magazine (see references) on the discussion of these
three L-numbers, P. cavatica and the 7
v 8 dorsal fin ray count, as there has been instances
with some specimens of P. braueri having
7 dorsal fin rays, or have they been different species?...the
debate goes on!.
Line Peckoltia, L305
Brazil, Guyana, Takutu River downstream of Lethem.
Dorsal spines (total): 2 -
2; Dorsal soft rays (total): 1-8, Anal spines: 1;
Anal soft rays: 4. Differs from P. cavatica
by having the dorsal saddles better developed, and
by having the the lower end of the caudal fin usually
oblique and only slightly indented.
Orange bands in the dorsal
fin with thin, orange bands at edge of dorsal and
caudal fins and by having thin, wavy, black lines
that tend to outline the plates and bones of the head.
Dorsal surface with four dark saddles, saddle one
below second and third dorsal-fin rays, saddle two
below last two dorsal-fin rays and slightly behind
dorsal fin, saddle three below adipose fin, and saddle
four at end of caudal peduncle. Head plates and bones
completely outlined in black and with lines intense,
by having black vermiculations on the pterotic-supracleithrum,
by having at least one, broken band in the caudal
fin, and by having the marginal orange band of the
dorsal and caudal fins not as thick or as intense
as in P. cavatica.
Care & Compatibility
Should be kept at slightly
higher temperatures and have a requirement for a higher
oxygen intake. Peaceful inhabitants of an aquarium.
They like their own territory in the aquarium as males
will sometimes spar with other males, but usually
nothing comes of this confrontation as long as they
have their own caves, be it PVC pipes, ceramic pots
or even under flat stones that have been built up
on the substrate.
Not easy. Good
water quality and water changing at the right time.
They lay their eggs in caves (pipes) and the male
guards them for about 10 days. The feeding of courgette
(zucchini) and peas taken out of their shell seems
to be a precondition for the successful spawning of
the Peckoltia genus.
The males have
short odontodes (spines) covering the front edge of
the pectoral fins and parts of the main body just
behind the gill plates, these spines run the full
length of the body, they also produce them on the
hard rays of the caudal fin. The females are devoid
of this character and I find that they are not quite
as colourful as the males, being that bit darker.
Omnivore: Vegetarian food,
tablets & pellets, insect larvae, zooplankton
and soft wood. As mentioned in the breeding section
they love courgette (zucchini), half cook them, sliced,
in a pot of water and then frozen for future use.
They are also partial to peas now and again.
The tail. Dorsal fin: The primary rayed fin(s)
on top of the body. Pectoral fins: The paired fins just
behind the head. Anal fin: The median, unpaired, ventrally
located fin that lies behind the anus, usually on
the posterior half of the fish. Pterotic-supracleithrum: Large combined
bone on the head, placed behind the eye.
Named for Snr. Gustavo Peckolt of the Natural History
Commission of Rondon.
R. and D. Pauly.
Editors. 2008. FishBase. World Wide Web electronic
publication. www.fishbase.org, version (11/2008). Seidel, I. 2008. Back to Nature guide
to L-catfishes, Ettlingen, Germany 208 p. Armbruster, J.W. and D.C. Werneke,
2005. Peckoltia cavatica, a new loricariid catfish
from Guyana and a redescription of P. braueri (Eigenmann
1912) (Siluriformes). Zootaxa 882:1-14. www.loricariidae.info Grant, Steven, Worm Line Peckoltias
(Siluriformes: Loricariidae) Catfish Study Group.
CatChat Volume 12, Issue 1. January 2011.
(1):Nick Rideout Peckoltia
braueri(2):Michael Tobler Peckoltia sp. (L135): Yann
Fuliquet Map:www.yourchildlearns.com Map: Google
maps 2020 Takuta bridge
image : JodyB - Own work, CC BY 3.0. Takuta bridge: Wikipedia.
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