Scientific Name
Nemipterus isacanthus

Common Name
Teardrop threadfin bream

Biology
Dorsal spines (total): 10; Dorsal soft rays (total): 9; Anal spines: 3; Anal soft rays: 7. Suborbital spine absent. Preopercle with 3 transverse scale rows. Pectoral fins long, reaching to beyond level of anus. Pelvic fins moderately long, reaching to between just short of and just beyond level of anus. A line drawn up from posterior edge of suborbital reaching the dorsal profile at about 2 to 7 scale rows before origin of dorsal fin. Upper lobe of caudal fin falcate, tipped with bright yellow. Axillary scale present. Color: Upper body pinkish mauve, silvery white below. Yellow teardrop-shaped bar beneath eye, extending obliquely halfway to suborbital.

Classification

Classified By

Bleeker, 1873

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Threadfin breams, Whiptail breams (Nemipteridae)

Distribution

Region

Western Pacific

Distribution

Western Pacific: including the Philippines, Gulf of Thailand, Strait of Malacca, Indonesia and northern Australia. Nemipterus bleekeri has been misapplied to this species by some authors.

Range

17°N - 21°S, 92°E - 140°E

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

50 m

Depth To - meters

200 m

Zone

demersal

Environment

Marine; demersal; non-migratory; depth range 50 - 200 m (Ref. 9785)

Trophic Level

3.73 s.e. 0.56 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

21.0 cm

Common Length

17.0 cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: minor commercial

Vulnerability

Low to moderate vulnerability (25 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