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💧 Freshwater 🌡️ Tropical

Oreoglanis Majuscula

Oreoglanis majuscula Linthoingambi & Vishwanath, 2011
Max Length
7.6 cm
Max Weight
-
Lifespan
-
Trophic Level
3.1
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
33.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Oreoglanis Majuscula (Oreoglanis majuscula), first described by Linthoingambi & Vishwanath, 2011 is a small fish in the family Sisoridae (order Siluriformes). Adults typically reach 7.60 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus.

Scientific Name
Oreoglanis majuscula
Authority
Linthoingambi & Vishwanath, 2011
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
Max Length
7.6 cm
Trophic Level
3.1
Vulnerability
33.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Oreoglanis majusculus, a species of the O. siamensis group sensu (Ng & Rainboth, 2001) is distinguished from all its congeners in having the posterior margin of the maxillary barbel villiform (vs. entire, crenulate or lobulate). It further differs from O. macropterus and O. insignis in having a caudal-peduncle depth of 6.1–6.4% SL (vs. 8.0–8.7 and 3.0–3.8, respectively); from O. setiger in having a caudal-peduncle length of 18.0–21.3% SL (vs. 26.1–28.8); from O. siamensis in having the posterior margin of the lower lip entire (vs. lobulated); from O. jingdongensis in having the caudal-fin lobes equal (vs. lower lobe longer); from O. immaculatus in having pectoral-fin rays 20 (vs. 17–18) and the lower-lip margin entire (vs. slightly indented); from O. heteropogon, O. laciniosus and O. sudarai in having posterior margin of lower lip entire (vs. lobulated); and from O. suraswadii in having posterior margin of lower lip entire (vs. with indistinct projections) .: elongated; Cross section: flattened.

🌀 Behaviour

Behavioural data for Oreoglanis Majuscula is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical; 28°N - 27°N, 92°E - 93°E known only from the type locality: the Kameng River in Arunachal Pradesh (State), Brahmaputra drainage, India (Ref 86402).

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.1±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00589 × L3.08 (TL)
Max TL
7.6cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Fishing Vulnerability
33.00/100
Low vulnerability
Trophic Level
3.1
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Linthoingambi & Vishwanath, 2011

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