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💧 Freshwater 🌡️ Tropical

Physoschistura Chulabhornae

Physoschistura chulabhornae Suvarnaraksha, 2013
Max Length
4 cm
Max Weight
-
Lifespan
-
Trophic Level
2.9
Depth
0–1 m
Climate
Tropical
Resilience
High
Vulnerability
25.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Collected from a stream with mixed sand, gravel, pebble, silt, mud and rock bottom, and with clear running water, elevation is 764 m above mean sea level, and with annual rainfall over 1450 mm. Surrounding landscape has semi-evergreen forest, plantations, and agricultural crops (mainly corn, cabbage and tomato). Water temperature was 17°C, air temperature 20.5°C, pH 7.7, DO 6.5 mg/l, and conductivity 20 μS. Averaged stream width 4 meters, and water depth 40-60 cm. Specimens were collected during the daylight by electro-fishing. Other species collected at the type locality were Schistura breviceps, Schistura maejotigrina, Oreoglanis siamensis, Scaphiodonichthys burmanicus, Opsarius pulchellus, Garra cambodgiensis, Puntius brevis, Puntius stoliczkanus, Monopterus albus, Channa gachua and Devario sp. A 3.0 cm SL female (MARNM 3999/14) contained 260 large eggs (0.6 mm diameter) .

Scientific Name
Physoschistura chulabhornae
Authority
Suvarnaraksha, 2013
Habitat
Freshwater
Climate
Tropical
Max Length
4 cm
Depth Range
0–1 m
Trophic Level
2.9
Resilience
High
Vulnerability
25.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

This species is distinguished from its congeners by the following set of characters: lateral line incomplete with 62-83 pores, reaching between anal-fin origin and anal-fin tip; absence of axillary lobe on pelvic-fin base; male with hammer head-shaped suborbital flap .Cross section: oval.

🌀 Behaviour

Behavioural data for Physoschistura Chulabhornae is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal; pH range: ? - 7.7; depth range 0 - 1 m . Tropical; ? - 17°C

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
2.9±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00724 × L3.01 (TL)
Max TL
4cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
25.00/100
Low vulnerability
Trophic Level
2.9
Omnivore / Planktivore
Climate Zone
Tropical
Described By
Suvarnaraksha, 2013

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