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Diadromous Least Concern 🌡️ Temperate

Caucasian dwarf goby

Knipowitschia caucasica Berg, 1916
Caucasian Dwarf Goby (Knipowitschia caucasica)
Caucasian Dwarf Goby (Knipowitschia caucasica)
Max Length
5 cm
Max Weight
-
Lifespan
2 yrs
Trophic Level
3.3
Depth
0–2 m
Climate
Temperate
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Inhabit fresh to hyper-saline waters (to 55 ppt) of lakes, estuaries and lagoons, in shallow areas with much weed. Feed on small crustaceans and chironomid larvae; larvae of the mussel Dreissena polymorpha . Lives less than 2 years. Spawns after first winter. Eggs are attached to the roof of a cavity under stones, plant material or shells and are defended by male. Postlarvae are pelagic..

Scientific Name
Knipowitschia caucasica
Authority
Berg, 1916
Habitat
Diadromous
Climate
Temperate
Body Shape
Elongated
IUCN Status
LC
Max Length
5 cm
Lifespan
2 years
Depth Range
0–2 m
Trophic Level
3.3
Resilience
High
Vulnerability
10.00/100
Migration
Amphidromous
Salinity
30–40 ppt

🔬 Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Teleostei
Order
Gobiiformes
Gobiiformes
Family
Gobiidae
Gobiidae
Genus
Knipowitschia
Knipowitschia
Species
Caucasian dwarf goby
Knipowitschia caucasica

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 7 - 8; Anal spines: 1; Anal soft rays: 7 - 9; Vertebrae: 31 - 32. Anterior oculoscapular, preopercular, and sometimes posterior oculoscapular, canals present; body squamation complete on caudal peduncle and along at least lateral midline to axil. Males with 4-5 major vertical bars.: elongated.

🌀 Behaviour

Behavioural data for Caucasian dwarf goby is currently being reviewed.

🦐 Diet

Diet information for Caucasian dwarf goby is currently being compiled.

🥚 Reproduction

Size at Maturity
2.2cm TL

Spawns up to 4 portions of eggs .

🌍 Habitat & Distribution

Marine; freshwater; brackish; demersal; amphidromous ; depth range 0 - 2 m . Temperate; 47°N - 38°N, 12°E - 61°E west to Aliakmon drainage (Greece).

🌿 Ecology

Zone Preferences
🌊 Marine 💧 Freshwater 🌿 Brackish ⬇️ Benthic
Migration
Amphidromous
Trophic Level
3.3±0.45
Food Items

small crustaceans and chironomid larvae (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00724 × L3.06 (TL)
Max TL
5cm
Dorsal Spines
7
Dorsal Rays
8
Anal Spines
1
Anal Rays
8
Vertebrae
32

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2022

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Elongated
Climate Zone
Temperate
Described By
Berg, 1916

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Bubyr goby · Caucasian dwarf goby · Danube delta dwarf goby
🌍CES hlaváč modrolesklý
🇩🇪German Kaukasus-Grundel
🌍ELL Ποντογωβιός
🇫🇮Finnish Asovantokko · silotokko
🇭🇷Croatian Glavočić kavkaski
🇭🇺Hungarian Kaukázusi géb
🇮🇹Italian Ghiozzetto caucasico
🌍LIT Kaukazinė knipovičija
🇳🇱Dutch Kaukasische dwerggrondel
🇵🇱Polish babka kaukaska
🇷🇺Russian Бычок Книповича кавказский · бычок-бубырь · Кавказский бычок
🌍SLV kavkaški glavaček
🌍TUR kaya baligi · kaya balığı · Küçükkaya baligi · Küçükkaya Balığı
🌍UKR Бичок-кніповічія кавказький · Кніповичія дунайська · Кніповичія кавказька · Кніповічія кавказька

Scientific Synonyms

Scientific Name Author Year Status
Bubyr caucasicus Berg 1916 Homotypic
Bubyr caucasicus kosswigii Sözer 1941 Synonym
Gobius caucasicus Kavraisky 1899 Synonym
Gobius lencoranicus Kessler 1877 Heterotypic
Pomatoschistus caucasicus Berg 1916 Homotypic

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 17 records indexed .

Occurrence density from GBIF View GBIF records ↗

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