Scientific Name
Pseudamia hayashii

Common Name
Hayashi's cardinalfish

Biology
Dorsal spines (total): 7; Dorsal soft rays (total): 8; Anal spines: 2; Anal soft rays: 7 - 8; Vertebrae: 24. Translucent when fresh with a reddish cast, overlaid with iridescence particularly on abdomen and operculum predominated by golden hues; dusky caudal fin with hyaline border; 1st and 2nd dorsal and anal fin pale to dusky or blackish, other fins are clear with pink rays. Anterior nostril without long flap. Rhomboid caudal fin. 23-24 scales in longitudinal series. Convex interorbital space. Oblique mouth. Predorsal scales 10 (9-11). This species resembles P. amblyuroptera and P. gelatinosa but has larger scales (LR37816).

Classification

Classified By

Randall, Lachner & Fraser, 1985

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Cardinalfishes (Apogonidae)

Distribution

Region

Indo-Pacific

Distribution

Indo-Pacific: Gulf of Aden to Samoa, north to southern Japan, south to Western Australia.

Range

32°N - 28°S

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

2 m

Depth To - meters

64 m

Zone

reef-associated

Environment

Marine; reef-associated; depth range 2 - 64 m (Ref. 11890)

Trophic Level

3.5 s.e. 0.50 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

True

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

10.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5078 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Low vulnerability (10 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated