Teleostei (teleosts) >
Acropomatiformes (Oceanic basses) >
Hemerocoetidae (Indo-Pacific duckbills)
Etymology: Pteropsaron: Greek, pteron = wing, fin + Greek, psaron = grey, with different colours (Ref. 45335); indicum: Named for its occurrence in the Indian waters; neuter singular adjective in nominative case..
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range ? - 70 m (Ref. 123048). Tropical
Western Indian Ocean: India.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 8.4 cm SL male/unsexed; (Ref. 123048)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 3; Dorsal soft rays (total): 27; Anal spines: 0; Anal soft rays: 29; Vertebrae: 38. This species of hemerocoetine trichonotid is distinguished by the following characters: dorsal fins 2 and well separated, D III, 27 with the spines rooted closely together, first dorsal fin with the first spine greatly elongated, second and third moderately extended, a fused pterygiophore complex placed between 4th and 5th neural spine and 5th spine bent down below complex, the second dorsal fin with 27 unbranched segmented rays, mid-fin rays greatly elongated; A 29, all but first two rays branched, none elongated; short pectoral fin, 17-18 rays, branched except one to three uppermost and one or two lowermost; P I,5, all rays branched and not elongated; extended filamentous uppermost branched caudal-fin ray; presence of a prominent maxillary spine; absence of barbels on head; dorsal operculum present on iris; head mostly scaled except cheek; lateral-line scales about 40, each large and with scalloped posterior margin; gill rakers 2 + 13; precaudal 10, caudal 28, total 38 vertebrae (including urostyle). Colouration: prominent bright-yellow midlateral stripe from pectoral-fin insertion to posterior body; a dorsal stripe along base of soft dorsal-fin rays extending out along upper portion of caudal fin; a ventral lateral stripe from mid-abdomen to base of caudal fin just above level of anal-fin base; three bright-yellow oblique bars anteriorly, one under the eye, second on opercle, and third over pectoral-fin base; branchiostegal rays bright yellow (Ref. 123048).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Victor, B. and A.B. Kumar, 2019. Pteropsaron indicum, a new species of signalfish (Teleostei: Trichonotidae: Hemerocoetinae) with a micro-CT analysis of osteology. J. Ocean Sci. Found. 33:70-78. (Ref. 123048)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [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): 3.3 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
