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💧 Freshwater Least Concern 🌡️ Temperate

Caspian naked goby

Caspiosoma caspium Kessler, 1877
Max Length
4.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
2–8 m
Climate
Temperate
Resilience
Medium
Vulnerability
13.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Occurs in lower reaches of rivers, deltas and estuaries; over muddy sand with shells . Eggs are pear-shaped . Feeds on benthic invertebrates, rotifers and algae.

Scientific Name
Caspiosoma caspium
Authority
Kessler, 1877
Habitat
Freshwater
Climate
Temperate
IUCN Status
LC
Max Length
4.5 cm
Depth Range
2–8 m
Trophic Level
3.3
Resilience
Medium
Vulnerability
13.00/100

🔬 Taxonomy

Genus
Caspiosoma
Caspiosoma
Species
Caspian naked goby
Caspiosoma caspium

🐟 Physical Description

This species is distinguished from other European gobies by the following characters: body slightly laterally compressed, anterior part is neither significantly wider nor flatter than caudal peduncle; head length 25-30% SL; no scales, granules, tubercles on body, but with 2-3 wide dark bars; no cephalic lateral line canals; D1 V-VII, with posterior extremity of its membranes reaching origin of D2; ; D2 with 11-13.5 branched rays; caudal peduncle about 3 times longer than deep; eye diameter about 20% HL; interorbital distance smaller than eye diameter; ventral part of second bar narrower than its middle part .

🌀 Behaviour

Behavioural data for Caspian naked goby is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; brackish; demersal; depth range 2 - 8 m . Temperate; 49°N - 40°N, 28°E - 53°E

🌿 Ecology

Zone Preferences
💧 Freshwater 🌿 Brackish ⬇️ Benthic
Trophic Level
3.3±0.4
Food Items

benthic invertebrates, rotifers and algae (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00741 × L3.09 (TL)
Max TL
4.5cm

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2023

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
13.00/100
Low vulnerability
Trophic Level
3.3
Predator
Climate Zone
Temperate
Described By
Kessler, 1877

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