Japan country information

Common names: Kujaku-haze
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Type locality, Amami Group of the Ryukyu Islands, Amami-oshima Island, Uchiumi, 0.5 m, OMNH-P 35160 (holotype of Parioglossus caeruleolineatus, 2.71 cm SL, male) (Ref. 84007). Status of threat: Data deficient (Ref. 94887).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ja.html
National Fisheries Authority: http://www.maff.go.jp/eindex.html
Occurrences: Occurrences Point map
Main Ref: Suzuki, T., T. Yonezawa and J. Sakaue, 2010
National Database:

Common names from other countries

Kujaku-haze, ... more

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Gobiiformes (Gobies) > Microdesmidae (Wormfishes) > Ptereleotrinae
Etymology: Parioglossus: Greek, pareia = jaw + Greek, glossa = tongue (Ref. 45335); caeruleolineatus: Name from Latin 'caeruleo' for blue and 'lineatus' for line, referring to the distinct bright blue stripe running from nape to dorsum of caudl peduncle in males when alive or still fresh..

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; benthopelagic; depth range 0 - 1 m (Ref. 84007). Subtropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Northwest Pacific: Ryukyus, Japan.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 2.7 cm SL male/unsexed; (Ref. 84007); 2.6 cm SL (female)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 7; Dorsal soft rays (total): 15; Anal spines: 1; Anal soft rays: 15 - 16; Vertebrae: 26. This species differs from its congeners in having a gently oblique mouth at an angle of 51-58° (average 55°) to longitudinal axis of body, and in possessing a bright blue stripe running from nape to dorsum of caudal peduncle in male when fresh or alive (Ref. 84007).

This species normally swims in schools during high tide or hides in holes on muddy bottoms mixed with pebbles around the roots of mangroves in river mouths. During low tide, they leave the holes and gather in schools in the mangroves at a depth of about 1 m (Ref. 84007).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator : Randall, John E. | Collaborators

Suzuki, T., T. Yonezawa and J. Sakaue, 2010. Three new secies of the ptereleotrid fish genus Parioglossus (Perciformes: Gobioidei) from Japan, Palau and India. Bull. Natl. Mus. Nat. Sci., Ser. A, (Suppl. 4):31-48. (Ref. 84007)

IUCN Red List Status (Ref. 130435)

Data deficient (DD) ; Date assessed: 23 July 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FishSource |

More information

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Parioglossus caeruleolineatus Suzuki, Yonezawa & Sakaue, 2010