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🌊 Marine Least Concern 🌡️ Temperate

Dwarf sole

Aseraggodes xenicus Matsubara & Ochiai, 1963
Max Length
8 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
6–10 m
Climate
Temperate
Resilience
High
Vulnerability
14.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Dwarf sole (Aseraggodes xenicus) is a ray-finned fish of the family Soleidae. It inhabits marine (saltwater) waters in benthic environments. This species can reach a maximum total length of 8 cm. It occurs at depths between 6 and 10 metres. With a trophic level of 3.4, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Aseraggodes xenicus
Authority
Matsubara & Ochiai, 1963
Habitat
Marine
Climate
Temperate
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
8 cm
Depth Range
6–10 m
Trophic Level
3.4
Resilience
High
Vulnerability
14.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 64 - 67; Anal spines: 0; Anal soft rays: 42 - 44; Vertebrae: 33 - 34. Diagnosis: Dorsal rays 64-67; anal rays 42-44; dorsal and anal rays are not branched. Caudal rays 18, the middle 14 branched. Lateral-line scales of ocular side 64-67; the line extending forward nearly to upper eye, with a ventral branch on head following the edge of the preopercle. Vertebrae 10 + 23-24. Dorsal pterygiophores anterior to fourth neural spine 14-15. Body depth 2.4-2.5 in SL; head length 3.55-3.65 in SL; snout long, 2.6-2.95 in head length; interorbital space narrow, 13.7-20.8 in head length. Caudal peduncle very short, 19.5-23.2 in HL. Tubular anterior nostril anterior to upper edge of lower eye, just reaching cutaneous edge of lower orbit when depressed posteriorly. Two rows of scales in interorbital space, none extending onto medial edges of eyes. Anterior edge of snout of largest specimen (23 mm SL) with a series of 12 conspicuous lappet-like cirri. Ventral margin of head with 20 similar cirri, the longest on chin about equal to pupil diameter; no cirri on opercular edge of either side of gill opening. Jaws of blind side surrounded by a zone of small papillae. Dorsal and anal rays long, the longest dorsal ray 2.5-3.0 in HL. No sheath of scales over base of dorsal and anal fins, at most one row of scales over basal part of rays. Rounded caudal fin and moderately long, 3.2-3.45 in SL. Pelvic fins long, reaching base of third or fourth anal ray, 1.65-1.9 in HL. Color of ocular side when fresh light gray with large irregular dark-edged white spots on head and body, scattered small whitish spots, fewer small black spots, a black spot the size of eye on lateral line in middle of body and a double black spot on lateral line in middle of posterior half of body .: short and / or deep; Cross section: compressed.

🌀 Behaviour

Behavioural data for Dwarf sole is currently being reviewed.

🦐 Diet

Diet information for Dwarf sole is currently being compiled.

🥚 Reproduction

Reproduction data for Dwarf sole is currently being compiled.

🌍 Habitat & Distribution

Marine; demersal; depth range 6 - 10 m . Temperate West Pacific: Sodwana Bay (South Africa), Porto Amelia (Mozambique) and Japan.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.4±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00955 × L3.07 (TL)
Max TL
8cm
Dorsal Rays
66
Anal Rays
43
Vertebrae
34

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2015

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
14.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Short and / or deep
Climate Zone
Temperate
Described By
Matsubara & Ochiai, 1963

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Dwarf sole · Smith's Sole
🇯🇵Japanese Otomeushinoshita · オトメウシノシタ
🇨🇳Chinese 外來櫛鱗鰨 · 比目魚 · 鰨沙 · 龍舌

Scientific Synonyms

Scientific Name Author Year Status
Aseraggodes smithi Woods 1966 Synonym
Parachirus xenicus Matsubara & Ochiai 1963 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 3 records indexed .

Occurrence density from GBIF View GBIF records ↗

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