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💧 Freshwater Endangered 🌡️ Tropical

Dawkinsia Assimilis

Dawkinsia assimilis Jerdon, 1849
Max Length
11.2 cm
Max Weight
-
Lifespan
-
Trophic Level
2.6
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
21.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Occurs in a variety of habitats such slow-flowing areas close to the banks with muddy substrate, clear-water, rock substrate areas and relatively fast-flowing waters .

Scientific Name
Dawkinsia assimilis
Authority
Jerdon, 1849
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
EN
Max Length
11.2 cm
Trophic Level
2.6
Resilience
High
Vulnerability
21.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Adults measuring >4.33 cm SL differ from all other South Asian Puntius by a combination of the following characters: a black band about as wide as eye across each caudal-fin lobe (faint or absent in adults of the Kallada River population); lower lip continuous, a caudal blotch on 2-5 scales, commencing posterior to anal-fin origin; no distinct markings on body in advance of anal-fin origin. Adult males from the Chalakudy and Kallada River populations with branched dorsal rays prolonged into filament-like extensions. Adults of P. assimilis may be distinguished from P. filamentosus by possessing mouth inferior (vs. subterminal) and maxillary barbels 23.5-33.3% HL (vs. 2.8-8.1%) . : fusiform / normal.

🌀 Behaviour

Behavioural data for Dawkinsia Assimilis 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

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
2.6±0.1

📐 Morphometrics

Length–Weight Relationship: W = 0.01072 × L3.02 (TL)
Max TL
11.2cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Endangered
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
21.00/100
Low vulnerability
Trophic Level
2.6
Omnivore / Planktivore
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Jerdon, 1849

🦠 Common Diseases

The following diseases are known to affect Dawkinsia Assimilis.

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