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💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Subtropical

Kessler's loach

Paraschistura kessleri Günther, 1889
Max Length
5.9 cm
Max Weight
-
Lifespan
-
Trophic Level
2.8
Depth
-
Climate
Subtropical
Resilience
High
Vulnerability
27.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Kessler's loach (Paraschistura kessleri), first described by Günther, 1889 is a small fish in the family Nemacheilidae (order Cypriniformes). Adults typically reach 5.90 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Subtropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Nemacheilidae kept in the hobby.

Scientific Name
Paraschistura kessleri
Authority
Günther, 1889
Habitat
Freshwater
Climate
Subtropical
Body Shape
Elongated
IUCN Status
LC
Max Length
5.9 cm
Trophic Level
2.8
Resilience
High
Vulnerability
27.00/100
Water Temp
15–30 °C
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

i>Paraschistura kessleri is distinguished from its congeners in Iran, except P. turcmenica, by the complete absence of scales (vs. presence of scales at least on the caudal peduncle). It differs from P. turcmenica by having 10-12 distinct, regularly shaped and set dark-brown bars on the flank (vs. bars on the flank irregularly shaped and set, often dissociated into a marbled pattern or a row of midlateral blotches and a row of saddles on the back); from P. bampurensis by the absence of a suborbital flap (vs. presence), a blunt snout (vs. pointed) and a color patter composed of 10-12 dark-brown bars on the flank wider than interspaces (vs. 11-18, usually narrower than interspaces); from P. cristata by the absence of a dorsal adipose crest and procurrent caudal-fin rays in the adipose crest (vs. presence) and an incomplete lateral line (vs. complete). Additional characters useful to identify P. kessleri include the following: dorsal fin usually with 7 1/2 branched; spot at the base of first dorsal-fin rays bold; pelvic fin reaching to about 1-2 eye diameter in front of anus .: elongated.

🌀 Behaviour

Behavioural data for Kessler's loach 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; pH range: 6.8 - 7.8; dH range: ? - 15. Subtropical; 15°C - 30°C

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
2.8±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00646 × L3.12 (TL)
Max TL
5.9cm

🌡️ Water Parameters & Tolerance

Temperature Range
15–30°C
pH Range
6.8–7.8
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
27.00/100
Low vulnerability
Trophic Level
2.8
Omnivore / Planktivore
Body Shape
Elongated
Climate Zone
Subtropical
Described By
Günther, 1889

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Nemacheilus kessleri Günther 1889 Synonym
Nemacheilus kessleri kessleri Günther 1889 Synonym
Nemacheilus sargadensis Nikolskii 1900 Synonym
Nemacheilus sargandensis - - Synonym
Nemachilus kessleri Günther 1889 Synonym
Nemachilus sargadensis Nikolskii 1900 Synonym
Noemacheilus kessleri Günther 1889 Synonym
Noemacheilus sargadensis Nikolskii 1900 Synonym
Noemacheilus sargadensis paludani Bănărescu & Nalbant 1966 Synonym
Noemacheilus sargandensis - - Synonym
Paraschistura sargadensis Nikolskii 1900 Synonym
Schistura kessleri Günther 1889 Synonym
Schistura sargadensis Nikolskii 1900 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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