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Acestridium gymnogaster Reis & Lehmann A., 2009

Image contributors to this species:

Mitsuhiro Iwamoto (2)

ScotCat Sources:

Other Sources:

Relevant Information:

Abstract: Acestridium gymnogaster and A. scutatum are described as new from small tributaries to the middle Rio Madeira, Amazonas, Brazil. Acestridium gymnogaster is most similar to A. discus from which it differs in the number of medial unpaired predorsal plates, the arrangement of chromatophores in predorsal area, and the absence of contact midventrally between the lateral abdominal plates. Acestridium scutatum is most similar to A. triplax from which it differs in having a longer snout and by the shape of the preanal plate (Roberto E. Reis, Pablo Lehmann A., 2009). Aquarium Care: Will need a fairly strong current in the aquarium. Not the easiest to care for so really a catfish for the more experienced Loricariid keeper, so would be better in a species tank on their own. Diet: Fine Vegetarian foods especially algae and small meaty foods such as brine shrimp nauplii. They rarely sit on the substrate but on leaf stalks and branches so they are especially difficult to feed. Etymology: The genus name Acestridium: –idium, Latin diminutive connoting resemblance: akéstra, darning needle, presumably referring to long spines on tip of snout of A. discus The specific name gymnogaster: gymnós, bare or naked; gast?r, belly or stomach, referring to naked area of skin between anterior lateral abdominal plates.

Common Name:

None

Synonyms:

None

Family:

Loricariidae

Distribution:

South America: Small tributaries of the middle Madeira River, Amazonas State, Brazil.

Size:

6.0cm. (2½ins)

Temp:

25-29°c (77-85°f.)

p.H.

6.5-7.2.

IUCN Red List

Acestridium gymnogaster is endemic to Brazil and known from 37 type specimens, sampled in only three locations, less than 3 km apart, in the Madeira River basin, Amazonas state. Considering that, in general, Acestridium species are found in fast-flowing environments and associated with submerged vegetation, habitat changes can threaten the presence of these organisms in their natural environments. However, its recent description, coupled with the scarcity of data on its biology, geographic distribution, and possible threats, categorizes Acestridium gymnogaster as Data Deficient (DD). A greater sampling effort directed at this species is suggested for a better assessment of its conservation status (IUCN 2022).

Reference:

Chico Mendes Institute for Biodiversity Conservation (ICMBio). 2022. Acestridium gymnogaster. IUCN Red List of Threatened Species 2022.
Froese, R. and D. Pauly. Editors. 2024. FishBase. World Wide Web electronic publication. www.fishbase.org, ( 02/2024 ).
Reis, R.E. and P. Lehmann A., 2009. Two new species of Acestridium Haseman, 1911 (Loricariidae: Hypoptopomatinae) from the Rio Madeira Basin, Brazil. Copeia 2009(3):446-452.

Family: Loricariidae Back to Ident-A-Cat Click on Thumbnails

Acestridium gymnogaster

Acestridium gymnogaster
Head view

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