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🌊 Marine Least Concern 🐠 Aquarium 🌡️ Temperate

Brown pygmygoby

Trimma yanagitai Suzuki & Senou, 2007
Max Length
3.7 cm
Max Weight
-
Lifespan
-
Trophic Level
-
Depth
35–56 m
Climate
Temperate
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Brown pygmygoby (Trimma yanagitai), first described by Suzuki & Senou, 2007 is a tiny fish in the family Gobiidae (order Gobiiformes). Adults typically reach 3.70 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 35 to 56 metres. It occurs in Temperate waters. On the IUCN Red List, it is classified as Least Concern.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Gobiidae kept in the hobby.

Scientific Name
Trimma yanagitai
Authority
Suzuki & Senou, 2007
Habitat
Marine
Climate
Temperate
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
3.7 cm
Depth Range
35–56 m
Resilience
High
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 8; Anal spines: 1; Anal soft rays: 7 - 8; Vertebrae: 26. This species differs from its congeners in having the following characters; its large size (largest 3.68 cm SL); predorsal scales 10-12; second spine of first dorsal fin elongate (not filamentous) or not elongate; pectoral fin branched, middle 6-11 rays; fifth pelvic-fin ray unbranched or branched, 49-57% of fourth ray in length; connecting membrane absent between innermost pelvic-fin rays; presence of a deep interorbital trough, no postorbital trough; pectoral fin rays 18-19; longitudinal scales 24; cheek and opercular scales; ground color of head and body grayish brown dorsally, dull yellow to pale ventrally; body when fresh with seven grayish lavender saddles with broad pale pink margins .: fusiform / normal.

🌀 Behaviour

Behavioural data for Brown pygmygoby is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; reef-associated; depth range 35 - 56 m . Temperate Northwest Pacific: Japan.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated

📐 Morphometrics

Length–Weight Relationship: W = 0.01023 × L3.01 (TL)
Max TL
3.7cm
Dorsal Spines
7
Dorsal Rays
8
Anal Spines
1
Anal Rays
8
Vertebrae
26

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2021

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Body Shape
Fusiform / normal
Climate Zone
Temperate
Described By
Suzuki & Senou, 2007

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