Pacific hatchet fish
📖 Overview
An oceanic and mesopelagic species , mainly at 300-650 m , 170-500 m at night and 350-600 m during day , commonly 1-600m . May make short diel migrations . Smaller individuals feed on copepods and ostracods; larger ones feed on euphausiids, salps and chaetognaths . Adult complement of photophores acquired at about 14 mm SL . Oviparous, with planktonic eggs and larvae .
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 0; Dorsal soft rays (total): 8 - 9; Anal spines: 0; Anal soft rays: 12 - 14; Vertebrae: 38 - 41. Scales deciduous; swim bladder well developed, gas-filled, euphysoclistous; branchiostegal rays 10, 3 on epihyal; post-abdominal spines (iliac) short, equal in length; abdominal keels shallow .: short and / or deep.
🌀 Behaviour
Behavioural data for Pacific hatchet fish is currently being reviewed.
🦐 Diet
Diet information for Pacific hatchet fish is currently being compiled.
🥚 Reproduction
Oviparous .
🌍 Habitat & Distribution
Marine; bathypelagic; oceanodromous ; depth range 1 - 3872 m , usually 1 - 600 m . Deep-water; 45°N - 45°S, 180°W - 180°E Northwest Atlantic: Canada (Ref.
🌿 Ecology
copepods and ostracods; larger ones feed on euphausiids, salps and chaetognaths (Ref
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🌐 Names & Taxonomy
| Language | Common Names |
|---|---|
| 🇬🇧English | Pacific hatchet fish · Pacific hatchetfish · Slender Hatchetfish · deepsea hatchetfish |
| 🌍CES | stříbrnáč obecný |
| 🇫🇮Finnish | Helmiäiskala · lättäkala |
| 🇯🇵Japanese | Naga-mune-eso · Nagamuneeso · ナガムネエソ |
| 🇳🇴Norwegian | Perlemorfisk |
| 🇷🇺Russian | Тихоокеанский топорик |
| 🇪🇸Spanish | hacha del Pacífico · pez hacha laminado |
| 🇸🇪Swedish | Pärlemorfisk |
| 🇨🇳Chinese | 斧魚 · 海洋斧魚 · 銀斧 · 長銀斧魚 |
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Argyropelachus affinis | Garman | 1899 | Synonym |
| Argyropelecus pacificus | Schultz | 1961 | Synonym |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 89 records indexed .
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