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💧 Freshwater 🌡️ Temperate

Italian spring goby

Knipowitschia punctatissima Canestrini, 1864
Max Length
4.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
-
Climate
Temperate
Resilience
High
Vulnerability
11.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

A short-lived species (less than 2 years) which occurs in small and karstic springs and streams, densely vegetated channels and slow-flowing streams ; with constant water temperature, on sand or gravel with or without vegetation, also in silty areas, provided that the water remains clear . Feeds on small invertebrates. Spawns after first winter (February-July); females may spawn more than once during this season. Males defend the eggs deposited in cavities under stones, plant material or shells. Postlarvae pelagic. This species is threatened by water abstraction, which lowers the water table and habitat destruction caused by desiccation of some springs .

Scientific Name
Knipowitschia punctatissima
Authority
Canestrini, 1864
Habitat
Freshwater
Climate
Temperate
Body Shape
Fusiform / normal
Max Length
4.5 cm
Trophic Level
3.5
Resilience
High
Vulnerability
11.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 8; Dorsal soft rays (total): 7 - 8; Anal spines: 1; Anal soft rays: 7; Vertebrae: 31. This species is distinguished from its congeners by the following characters: no head lateral line canals; scales only under pectoral; body of live breeding males with 10-15 dark, irregular bars; D1 7 rays, D2 8.5 branched rays, A 7-8.5 branched rays ; interorbit with uniserial row of papillae flanking each orbit .: fusiform / normal.

🌀 Behaviour

Behavioural data for Italian spring goby is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

Females may spawn more than once during a season .

🌍 Habitat & Distribution

Freshwater; demersal. Temperate; 47°N - 44°N

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.5±0.37
Food Items

small invertebrates

📐 Morphometrics

Length–Weight Relationship: W = 0.01 × L3 (TL)
Max TL
4.5cm
Dorsal Spines
8
Dorsal Rays
8
Anal Spines
1
Anal Rays
7
Vertebrae
31

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
11.00/100
Low vulnerability
Trophic Level
3.5
Predator
Body Shape
Fusiform / normal
Climate Zone
Temperate
Described By
Canestrini, 1864

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