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💧 Freshwater Least Concern 🌡️ Tropical

Cross Tatia

Tatia gyrina Eigenmann & Allen, 1942
Max Length
4.2 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

This is typically associated with blackwater environment, mainly in rivers. In central Amazon, it occurs both in black and clear waters but only in dense vegetation where there is minimal light. Field data suggest that this fish inhabits water with low pH, low conductivity and low level of dissolved oxygen. Reaches sexual maturity above 2.8 cm SL .

Scientific Name
Tatia gyrina
Authority
Eigenmann & Allen, 1942
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Max Length
4.2 cm
Trophic Level
3.2
Vulnerability
10.00/100
Water Temp
21–24 °C
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 1; Dorsal soft rays (total): 3 - 5; Vertebrae: 29 - 30. Can be diagnosed from all congeners by the following characters: reduced mesethmoid, wider than long, (mesethmoid length 12.1-15% HL; width 17.2-19% HL); lower jaw slightly protruding beyond upper; nasal ossified, tubular, not sutured to mesethmoid; third nuchal plate reduced; small prevomer, with short rostro-lateral process; elongate postcleithral process, sometimes as long as head length; ribs 5-6; and vertebrae, 29-30 (except Tatia galaxias, rarely having 30). Deferent duct externally elongate and anal-fin base swollen, with a thick secretory pouch in mature males. Can be further differentiated by the following combination of restricted characters: females with genital papilla; anal fin of mature males bearing rays with uncurved segments; and caudal fin lobes with about the same length in both adult females and males. Other distinguishing characters include whitish ground color pattern with brown spots, pattern mottled or with irregular stripes; ventral surface of head covered with short brown irregular stripes; body with a characteristic dark band along lateral line; and a small adult size of less than 4 cm SL .

🌀 Behaviour

Behavioural data for Cross Tatia is currently being reviewed.

🦐 Diet

Diet information for Cross Tatia is currently being compiled.

🥚 Reproduction

Reproduction data for Cross Tatia is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic; pH range: 6.5 - 7.5; dH range: ? - 15. Tropical; 21°C - 24°C South America: upper and central Amazon in Peru, Colombia and Brazil; rivers of the northern Suriname.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.0049 × L3.11 (TL)
Max TL
4.2cm
Dorsal Spines
1
Dorsal Rays
4
Vertebrae
30

🌡️ Water Parameters & Tolerance

Temperature Range
21–24°C
pH Range
6.5–7.5
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.2
Predator
Climate Zone
Tropical
Described By
Eigenmann & Allen, 1942

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Cross Tatia
🌍CES trnovčík vířivý
🇪🇸Spanish Barbudito · Kere kere

Scientific Synonyms

Scientific Name Author Year Status
Centromochlus creutzbergi Boeseman 1953 Synonym
Centromochlus gyrinus Eigenmann & Allen 1942 Synonym
Tatia creutzbergi Boeseman 1953 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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