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🌊 Marine 🌡️ Boreal

Pacific sandfish

Trichodon trichodon Tilesius, 1813
Max Length
30.5 cm
Max Weight
-
Lifespan
-
Trophic Level
4
Depth
0–375 m
Climate
Boreal
Resilience
Medium
Vulnerability
25.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Adults are found in deeper waters whereas larvae and juveniles occupy shallow, nearshore habitats . Usually buried in muddy or sandy bottoms with mouth protruding . Eggs are laid in a gelatinous mass that is attached to rocks . Some have been caught by hand in shallow water .

Scientific Name
Trichodon trichodon
Authority
Tilesius, 1813
Habitat
Marine
Climate
Boreal
Body Shape
Elongated
Max Length
30.5 cm
Depth Range
0–375 m
Trophic Level
4
Resilience
Medium
Vulnerability
25.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 9 - 16; Dorsal soft rays (total): 18 - 20; Anal spines: 1; Anal soft rays: 28 - 29. Caudal moderately forked . Light brown on dorsal surface, silvery ventrally, dark along midside, mid-dorsal line in irregular patches, and lateral line; spinous dorsal with dark streaks paralleling free edge; upper parts of pectorals and caudal with darkened edges, and vague dark blotches on rayed dorsal; anal, pelvic fins, and lower parts of pectorals light .: elongated.

🌀 Behaviour

Behavioural data for Pacific sandfish is currently being reviewed.

🦐 Diet

Pacific sandfish are mostly shrimp eaters, feeding by waiting for small fish, shrimp or krill to come into range and then sucking the prey up with its unusually large upturned mouth. The sandfish's teeth are needle-sharp for grasping prey. Most shrimp eaten are between 1 and 3 inches long. The sandfish waits for prey by burying itself in sand or mud and using is upturned eyes to watch passing prey. Sandfish themselves are preyed upon by Pacific cod and Pacific halibut. Seabirds such as pigeon guillemots, gulls, and puffins will also prey on sandfishes.

small fish
crustaceans
cephalopods

🥚 Reproduction

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

Incubation of eggs takes one year .

🌍 Habitat & Distribution

Marine; demersal; depth range 0 - 375 m . Boreal; 66°N - 38°N Northwest Pacific: Kamchatka (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
4±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
30.5cm
Dorsal Spines
13
Dorsal Rays
19
Anal Spines
1
Anal Rays
29

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
25.00/100
Low vulnerability
Trophic Level
4
Apex / Top predator
Body Shape
Elongated
Climate Zone
Boreal
Described By
Tilesius, 1813

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Trachinus gasteropelecus Tilesius 1813 Synonym
Trachinus trichodon Tilesius 1813 Synonym
Trichodon lineatus Ayres 1860 Synonym
Trichodon stelleri Cuvier 1829 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 11 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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View all observations for Pacific sandfish ↗
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