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🌊 Marine 🌡️ Tropical

Coelorinchus Okamurai

Coelorinchus okamurai Nakayama & Endo, 2017
Max Length
-
Max Weight
-
Lifespan
-
Trophic Level
3.6
Depth
610–690 m
Climate
Tropical
Resilience
Low
Vulnerability
63.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Coelorinchus Okamurai (Coelorinchus okamurai) is a ray-finned fish of the family Macrouridae. It inhabits marine (saltwater) waters. It occurs at depths between 610 and 690 metres. With a trophic level of 3.6, it is a mid-level predator.

Scientific Name
Coelorinchus okamurai
Authority
Nakayama & Endo, 2017
Habitat
Marine
Climate
Tropical
Depth Range
610–690 m
Trophic Level
3.6
Resilience
Low
Vulnerability
63.00/100
Salinity
30–40 ppt

🐟 Physical Description

This species is distinguished from its congeners by the following set of characters: snout is moderately long, sharply pointed in lateral and dorsal views, its length 39–42% of head length; lateral nasal ridge is completely supported by nasal bone; light organ is short, with length less than 1/2 orbit diameter, its anterior margin falling far short of pelvic-fin bases; premaxillary teeth in short, uniformly wide band, with the posterior end of the tooth band not reaching lateral corner of mouth; teeth not greatly enlarged; body scales are covered with short, reclined, narrowly blade-like spinules in widely divergent rows; buttresses of body scale spinules are scarcely developed; occipital scales between parietal ridges armed with divergent rows of long, erect, and needle-like spinules; nasal fossa usually naked (a few small scales rarely present anteroventrally); patches of small scales sparsely distributed on the ventral surface of head; scales on underside of head armed with 1-3 rows of short, erect, needle-like to knife-like spinules; interdorsal space is longer than first dorsal-fin base length; subopercle terminating as a long, slender flap; body dark overall with no prominent markings; fins are uniformly blackish .Cross section: oval.

🌀 Behaviour

Behavioural data for Coelorinchus Okamurai 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; bathydemersal; depth range 610 - 690 m . Tropical Indian Ocean: Timor Sea.

🌿 Ecology

Zone Preferences
🌊 Marine
Trophic Level
3.6±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00257 × L3.19 (TL)

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
63.00/100
High vulnerability
Trophic Level
3.6
Predator
Climate Zone
Tropical
Described By
Nakayama & Endo, 2017

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