US loricariids

Post by **Shane** » 16 Oct 2005, 21:30

Some interesting links,

Texas plecos. Looks like the Texans can collect from several genera.
http://southwestinvasivespecies.org/Suc ... xasHO1.pdf

http://el.erdc.usace.army.mil/elpubs/pd ... -v04-1.pdf

Ancistrus in Hawaii
http://hbs.bishopmuseum.org/pdf/tr-17.pdf

Non-Native Hoplos using non-native Asian aquatic plants in Florida to build their nests:
Nests and Nest Habitats of the Invasive Catfish Hoplosternum littorale in Lake Tohopekaliga, Florida: A Novel Association with Non-native Hydrilla verticillata
http://www.bioone.org/bioone/?request=g ... &page=0451

Florida plecos
http://floridafisheries.com/fishes/non- ... ml#suckers

Arizona plecos
http://pagnet.org/wq/reports/exotic_aquatics.pdf

Loricariids now the dominant taxon in some Texas rivers
http://www.swf.usace.army.mil/pubdata/n ... 1_ERDC.pdf

-Shane

L-14 · Post by **L-14** » 16 Oct 2005, 21:55

The last paper is interesting in that other group of fishes are studied too. Interestingly sailfin plecos seem to be the main pleco in most area, and the number of Hypostomus just cannot compare to the sailfin eventhough it was introduced earlier

In San antonio river I wonder how degraded it is since most other fish with high biomass are introduced species that are well known for their ability to tolerate imperfect environmental conditions.

I am also interested if most of the introduced plecos elsewhere are also sailfin plecos. At least in the Singapore native fish book sailfin plecos are referred to as Hypostomus sp..

Post by **Silurus** » 16 Oct 2005, 22:03

The loricariid that has established itself in Singapore is Pterygoplichthys (not sure if only P. pardalis is the only species involved).

MatsP · Post by **MatsP** » 17 Oct 2005, 11:03

L-14 wrote:In San antonio river I wonder how degraded it is since most other fish with high biomass are introduced species that are well known for their ability to tolerate imperfect environmental conditions.

I don't believe the environmental degradation mentioned is chemical, but rather "mechanical", i.e. the San Antonio river has a lot of building work done next to it, which has affected the river. However, I suspect the ability to survive in different environments, by the Sailfin pleco, in particular the fact that it's quite hard water [from the calciferous rock that is in the San Antonio area], which is quite different from the native environment of the fish. This water would be quite suitable for Malawi or Tanganyika c-ichlids, rather than South American Loricariidae...

--
Mats

bronzefry · Post by **bronzefry** » 19 Oct 2005, 21:50

Very interesting links indeed, Shane. I'm not well versed in the Habitat Suitibility Index and it's meaning. What does the HSI determine?

Yann · Post by **Yann** » 20 Oct 2005, 00:17

Hi!

I saw in DATZ a few issue back that even some Pterygoplichthys had been found in Vietnam!!!!

Cheers
Yann